S. Akrofi, P.C. Struik, L.L. Price
Home gardens are important for enhancing food and nutritional security for HIV/AIDS-afflicted rural households through dietary diversity. Female-headed households may depend on home gardens more than...
This paper examines the gathering of wild orchids and its effect on orchid species diversity and abundance in rural communities with high prevalence of HIV/AIDS and high numbers of orphans. The study...
Effect of Drought Stress on Barley-Wheat Intercropping (2009)
Woldeamlak, A, Kropff, M.J, Struik, P.C
The effects of drought or moisture stress (MS1-no stress; MS2-stress at seedling stage and MS3-stress at heading stage) was studied for different crop ratios of barley (Hordeum vulgare ) and wheat...
P.C. Struik, S. Tamminga, F.M. Engels, J.W. Cone
The internodes of forage maize (Zea mays L.) stems were studied at anthesis for variation in anatomy and chemical composition in relation to digestibility. The study was carried out with a short...
R.M. Muasya, C.W. Muui, P.C. Struik
Weather conditions affect the seed quality of major crops including common bean. This study aimed to evaluate whether seed quality is affected through weather effects on the quality achievable at the...
Richards, P., Hughes, S.G., Kudadjie, C.Y., Offei, S.K., Struik, P.C.
A challenge for African countries is how to integrate new sources of knowledge on plant genetics with knowledge from farmer practice to help improve food security. This paper considers the knowledge...
Zannou, A., Agbicodo, E., Zoundjihékpon, J., Struik, P.C., Ahanchédé, A., Kossou, D.K., ...
Yam (Dioscorea spp.) is an important food and cash crop in the Guinea-Sudan zone of Benin. The genetic diversity of about 70 cultivars of Dioscorea cayenensis/Dioscorea rotundata (Guinea yam) and...
Field-scale validation of an automated soil nitrate extraction and measurement system (2009)
Sibley, K.J., Astatkie, T., Brewster, G., Struik, P.C., Adsett, J.F., Pruski, K.
The adoption of Precision Farming (PF) in Germany has been studied by several mail surveys, telephone interviews and personal interviews with farmers, advisors, teachers and representatives of the PF...
Applied Biotechnology to combat the late blight in potato caused by Phytophthora infestans (2009)
Haverkort, A.J., Struik, P.C., Visser, R.G.F., Jacobsen, E.
Potato is an important crop, grown worldwide. It suffers from many pests and diseases among which late blight, caused by the oomycete Phytophthora infestans, is the worst. The disease is still...
This paper reports on a debate on intriguing propositions relating to the scientific, agronomic, societal and economic impact of the BIOEXPLOIT project, focusing on late blight resistance in potato....
Ontwikkelen selectiecriteria stikstofefficiënte biologische aardappelrassen: bodembedekking (2009)
Tiemens-Hulscher, M., Qiao, Y., Ghimire, R., Lammerts Van Bueren, E.T., Struik, P.C.
Genetic variation for nitrogen efficiency in potato (2009)
Tiemens-Hulscher, M., Struik, P.C., Lammerts Van Bueren, E.T.
Perception of biodiversity in arable production systems in the Netherlands (2009)
Stilma, E.S.C., Smit, A.B., Geerling-Eiff, F.A., Struik, P.C., Vosman, B.J., Korevaar, H.
Until recently, arable production systems in the Netherlands were solely based on their production function, while ecological and societal functions were not or hardly taken into account. However,...
Westerhuis, W., Struik, P.C., Stomph, T.J.
Because hemp is a short-day plant, postponing the sowing date might be a suitable strategy to obtain shorter and smaller plants around flowering, when primary fibres are 'ripe' enough to be...
Westerhuis, W., Amaducci, S., Struik, P.C., Zatta, A., Stomph, T.J.
Sowing density and harvest time are considered important crop management factors influencing fibre quantity and quality in hemp (Cannabis sativa). We investigated whether the effects of these factors...
Nuijten, E., Struik, P.C., Mokuwa, A.G., Okry, F., Teeken, B.W.E., ...
In West Africa two rice species (Oryza glaberrima Steud. and Oryza sativa L.) co-exist. Although originally it was thought that interspecific hybridization is impossible without biotechnological...
Promotor Prof, P. C. Struik, Hoogleraar Gewasfysiologie, Co-promotoren Dr, J. Vos, Dr. B. Andrieu, ...
Dit onderzoek is uitgevoerd binnen de onderzoekschool: Production Ecology and
Can herbage nitrogen fractionation in Lolium perenne be improved by herbage management? (2008)
N.J. Hoekstra, P.C. Struik, E.A. Lantinga
The high degradability of grass protein is an important factor in the low nitrogen (N) utilization of grazing bovines in intensive European grassland systems. We tested the hypothesis that protein...
W. Jiang, P.C. Struik, M. Zhao, H. Van Keulen, T.Q. Fan, T.J. Stomph
Zinc is an important micronutrient for both crop growth and human nutrition. In rice production, yields are often reduced and Zn mass concentrations in the grains are often low when Zn is in short...
Can herbage nitrogen fractionation in Lolium perenne be improved by herbage management? (2008)
N.J. Hoekstra, P.C. Struik, E.A. Lantinga
The high degradability of grass protein is an important factor in the low nitrogen (N) utilization of grazing bovines in intensive European grassland systems. We tested the hypothesis that protein...
W. Jiang, P.C. Struik, M. Zhao, H. Van Keulen, T.Q. Fan, T.J. Stomph
Zinc is an important micronutrient for both crop growth and human nutrition. In rice production, yields are often reduced and Zn mass concentrations in the grains are often low when Zn is in short...
Lommen, W.J.M., Bouwmeester, H.J., Schenk, E., Verstappen, F.W.A., Elzinga, S., Struik, P.C.
The quantitative insight in processes underlying yield and concentrations of interesting secondary metabolites in crops is still limited. Yet, this insight is essential to further improve crops and...
Plant neurobiology and green plant intelligence : science, metaphors and nonsense (2008)
Struik, P.C., Yin, X., Meinke, H.
This paper analyses the recent debates on the emerging science of plant neurobiology, which claims that the individual green plant should be considered as an intelligent organism. Plant neurobiology...
Can herbage nitrogen fractionation in Lolium perenne be improved by herbage management? (2008)
Hoekstra, N.J., Struik, P.C., Lantinga, E.A., Schulte, R.P.O.
The high degradability of grass protein is an important factor in the low nitrogen (N) utilization of grazing bovines in intensive European grassland systems. We tested the hypothesis that protein...
Jiang, W., Struik, P.C., Zhao, M., Fan, T.Q., Stomph, T.J.
Zinc is an important micronutrient for both crop growth and human nutrition. In rice production, yields are often reduced and Zn mass concentrations in the grains are often low when Zn is in short...
Functional genomics has been driven greatly by emerging experimental technologies. Its development as a scientific discipline will be enhanced by systems biology, which generates novel, quantitative...
Late blight in organic potato growing : managing resistance and early tuber growth (2008)
Hospers-Brands, M., Timmermans, B.G.H., Struik, P.C., Tiemens-Hulscher, M., Lammerts Van Bueren, E.T.
Does increased zinc uptake enhance grain zinc mass concentration in rice? (2008)
Jiang, W., Struik, P.C., Zhao, M., Jin, L.N., Stomph, T.J.
Rice (Oryza sativa) is the worlds' most important cereal and potentially an important source of zinc (Zn) for people who eat mainly rice. To improve Zn delivery by rice, plant Zn uptake and internal...
Lammerts Van Bueren, E.T., Tiemens-Hulscher, M., Struik, P.C.
Average potato yields in Dutch organic farming systems vary from 15 to 29 Mg/ha and are limited by low input of nitrogen and severe late blight attacks caused by the oomycete Phytophthora infestans....
Osman, A., Struik, P.C., Almekinders, C.J.M., Lammerts Van Bueren, E.T.
Main stream commercial onion breeders do not select varieties for organic farming, but solely for conventional farming. Seed companies consider the organic market too small to justify investments in...
Tin, H.Q., Struik, P.C., Price, L.L., Be, T.T.
Farmer seed production schools in combination with participatory field experimentation might be effective instruments to enhance the skills of farmers to produce high-quality seed in the informal...
Osman, A.M., Almekinders, C.J.M., Struik, P.C., Lammerts Van Bueren, E.T.
Main stream commercial onion breeders do not select varieties for organic farming, but solely for conventional farming. Seed companies consider the organic market too small to justify investments in...
Nitrogen phytoremediation by water hyacinth (Eichhornia crassipes (Mart.) Solms) (2008)
Fox, L.J., Struik, P.C., Appleton, B.L., Rule, J.H.
The phytoremediation potential of water hyacinth, Eichhornia crassipes (Mart.) Solms, was examined in two independent studies under nitrogen (N) rates of 0, 40, 80, 100, 150, 200, and 300 ppm. A...
Brehmer, B., Struik, P.C., Sanders, J.P.M.
In symbiosis with bacteria, legumes are able to biologically fix nitrogen from the atmosphere and therefore require less artificial nitrogen fertilizer. As the manufacturing of nitrogen fertilizers...
An on-the-go-soil sampler for an automated soil nitrate mapping system (2008)
Sibley, K.J., Adsett, J.F., Struik, P.C.
An automated on-the-go soil sampler was developed as part of a soil nitrate mapping system that collects data for precisely analyzing small-scale variation in soil NO3-N. An essential requirement of...
Zannou, A., Kossou, D.K., Ahanchédé, A., Zoundjihékpon, J., Agbicodo, E., Struik, P.C., ...
Characterization of genetic diversity among cultivated cowpea [Vigna unguiculata (L.) Walp.] varieties is important to optimize the use of available genetic resources by farmers, local communities,...
Muasya, R.M., Lommen, W.J.M., Muui, C.W., Struik, P.C.
NJAS wageningen journal of life sciences, Vol 56, No 1/2 (2008) Home About Log In Register Search Current Archives KLV Home > Vol 56, No 1/2 (2008) > Muasya Font Size: How weather during development...
Struik, P.C., Tamminga, S., Engels, F.M., Cone, J.W.
The internodes of forage maize (Zea mays L.) stems were studied at anthesis for variation in anatomy and chemical composition in relation to digestibility. The study was carried out with a short...
Agronomy of Cynara cardunclulus growing on an aquic soil in central Greece (2008)
Archontoulis, S.V., Danalatos, N.G., Struik, P.C., Vos, J., Yin, X.
Brehmer, B., Struik, P.C., Sanders, J.P.M.
In symbiosis with bacteria, legumes are able to biologically fix nitrogen from the atmosphere and therefore require less artificial nitrogen fertilizer. As the manufacturing of nitrogen fertilizers...
B. Vosman, H. Korevaar, A.B. Smit, P.C. Struik
A study was done that aimed at designing biodiverse crop production systems for the Netherlands taking into account the views held by stakeholders in society. Biodiverse crop production systems...
Chemical composition of lamina and sheath of Lolium perenne as affected by herbage management (2007)
N.J. Hoekstra, P.C. Struik, E.A. Lantinga
The quality of grass in terms of form and relative amounts of energy and protein affects both animal production per unit of intake and nitrogen (N) utilization. Quality can be manipulated by herbage...
E. Ebregt, P.C. Struik, B. Odongo, P.E. Abidin
In north-eastern Uganda, the sweet potato crop of small subsistence farmers is severely affected by many pests, including (rough) sweet potato weevils, nematodes and millipedes. Field experiments...
B. Vosman, H. Korevaar, A.B. Smit, P.C. Struik
A study was done that aimed at designing biodiverse crop production systems for the Netherlands taking into account the views held by stakeholders in society. Biodiverse crop production systems...
Chemical composition of lamina and sheath of Lolium perenne as affected by herbage management (2007)
N.J. Hoekstra, P.C. Struik, E.A. Lantinga
The quality of grass in terms of form and relative amounts of energy and protein affects both animal production per unit of intake and nitrogen (N) utilization. Quality can be manipulated by herbage...
E. Ebregt, P.C. Struik, B. Odongo, P.E. Abidin
In north-eastern Uganda, the sweet potato crop of small subsistence farmers is severely affected by many pests, including (rough) sweet potato weevils, nematodes and millipedes. Field experiments...
This paper is on coaching farmers in (re)designing a farm. It describes how farmers can become inspired to design a sustainable farm by the way medical doctors look at the human being and his health....
H. Verhoog, M. Tiemens-Hulscher, P.C. Struik, M.A. Haring
In organic agriculture the use of genetically modified organisms (GMOs) is banned. Recently, two novel breeding techniques have been developed, i.e., cisgenesis and reverse breeding, both of which...
H. Verhoog, M. Tiemens-Hulscher, P.C. Struik, M.A. Haring
In organic agriculture the use of genetically modified organisms (GMOs) is banned. Recently, two novel breeding techniques have been developed, i.e., cisgenesis and reverse breeding, both of which...
This paper is on coaching farmers in (re)designing a farm. It describes how farmers can become inspired to design a sustainable farm by the way medical doctors look at the human being and his health....
E. Ebregt, P.C. Struik, P.E. Abidin, B. Odongo
Millipedes can cause considerable damage in the production of sweet potato and some other crops in East Africa. Quantitative information on intake of crop diets by and body weight gain of millipedes...
E. Ebregt, P.C. Struik, P.E. Abidin, B. Odongo
Millipedes can cause considerable damage in the production of sweet potato and some other crops in East Africa. Quantitative information on intake of crop diets by and body weight gain of millipedes...
Struik, P. C., Cassman, Kenneth G., Koornneef, M.
In the future, more food needs to be produced with increasingly scarce natural resources. Genomics can play a key role in accelerating yield gains because it helps to improve our understanding of...
Evers, J.B., Vos, J., Fournier, C., Andrieu, B., Chelle, M., Struik, P.C.
ADELwheat is an architectural model that describes development of wheat in 3D. This paper analyzes the robustness of the parameterization of ADELwheat for spring wheat cultivars in relation to plant...
Ebregt, E., Struik, P.C., Abidin, P.E., Odongo, B.
Millipedes can cause considerable damage in the production of sweet potato and some other crops in East Africa. Quantitative information on intake of crop diets by and body weight gain of millipedes...
Pathways to improving the N efficiency of grazing bovines (2007)
Hoekstra, N.J., Schulte, R.P.O., Struik, P.C., Lantinga, E.A.
Livestock production has been identified as a major source of nitrogen (N) losses. Therefore, it is important to reduce N output through animal excretions by improving N utilisation by the animal....
Jiang, W., Struik, P.C., Lingna, J., Ming, Z., Stomph, T.J.
We investigated the uptake and distribution of zinc (Zn) either applied to the roots or to the leaves in rice during grain development. Plants of two aerobic rice cultivars were grown in a nutrient...
Struik, P.C., Cassman, K.G., Koornneef, M.
In the future, more food needs to be produced with increasingly scarce natural resources. Genomics can play a key role in accelerating yield gains because it helps to improve our understanding...
Crop systems biology : an approach to connect functional genomics with crop modelling (2007)
The response of the whole crop to environmental conditions is a critical factor in agriculture. It can only be understood if the organization of the crop system is taken into account. A popular view...
Reekie, J.Y., Struik, P.C., Hicklenton, P, Duval, J.
Strawberry plants ( Fragaria × ananassa Duch.) are planted in Canadian nurseries in spring to be dug in autumn as bare-root transplants for winter annual plasticulture fruit production in the...
Taye, M., Lommen, W.J.M., Struik, P.C.
Plectranthus edulis (syn. Coleus edulis) is a tuber-bearing labiate species cultivated in parts of southern Ethiopia. To learn about traditional cultural practices and their rationale, a survey was...
Reekie, J.Y., Struik, P.C., Hicklenton, P.R., Duval, J.R.
Prohexadione-calcium (ProCa) applied as foliar spray, increases root to shoot ratio and reduces specific leaf area (SLA) in strawberry plants ( Fragaria × ananassa Duch.). These effects may help...
Socio-cultural factors influencing and maintaining yam and cowpea diversity in Benin (2007)
Zannou, A., Tossou, R.C., Vodouhè, S., Richards, P., Struik, P.C., Zoundjihékpon, J., ...
Yam and cowpea are important elements in the food culture of local communities in the Transitional Guinea-Sudan Zone of Benin. Yam and cowpea serve to satisfy vital needs in households and in...
Jiggins, J., Kossou, D.K., Leeuwis, C., Röling, N., Sakyi-Dawson, O., ...
The article introduces the IJAS special issue on the Convergence of Sciences (CoS) research programme that took place in Benin and Ghana between 2002 and 2006. CoS sought to develop pro-poor pathways...
Understanding variation in sorghum through with-farmer experimentation (2007)
Kudadjie, C.Y., Struik, P.C., Richards, P., Offei, S.K., Atengdem, P.B.
The need for an appropriate research strategy to build upon the knowledge of sorghum farmers in north-east Ghana in terms of diversity management and variety maintenance was identified in a previous...
This paper is on coaching farmers in (re)designing a farm. It describes how farmers can become inspired to design a sustainable farm by the way medical doctors look at the human being and his health....
Evers, J.B., Vos, J., Chelle, M., Andrieu, B., Fournier, C., Struik, P.C.
The outgrowth of tiller buds in Poaceae is influenced by the ratio of red to far-red light irradiance (R:FR). At each point in the plant canopy, R:FR is affected by light scattered by surrounding...
Blijft biologische aardappelteelt in Nederland mogelijk? (2007)
Tiemens-Hulscher, M., Lammerts Van Bueren, E.T., Timmermans, B.G.H., Struik, P.C.
Stilma, E.S.C., Vosman, B., Korevaar, H., Smit, A.B., Struik, P.C.
A study was done that aimed at designing biodiverse crop production systems for the Netherlands taking into account the views held by stakeholders in society. Biodiverse crop production systems...
Chemical composition of lamina and sheath of Lolium perenne as affected by herbage management (2007)
Hoekstra, N.J., Struik, P.C., Lantinga, E.A., Schulte, R.P.O.
The quality of grass in terms of form and relative amounts of energy and protein affects both animal production per unit of intake and nitrogen (N) utilization. Quality can be manipulated by herbage...
Ebregt, E., Struik, P.C., Odongo, B., Abidin, P.E.
In north-eastern Uganda, the sweet potato crop of small subsistence farmers is severely affected by many pests, including (rough) sweet potato weevils, nematodes and millipedes. Field experiments...
Evers, J.B., Vos, J., Romero, P., Yin, X., Kang, M.Z., ...
Preface to Special issue on Values in organic agriculture (2007)
Lammerts Van Bueren, E.T., Amons, R., Struik, P.C., Wienk, J.F.
Jiggins, J., Kossou, D., Leeuwis, C., Röling, N., Sakyi-Dawson, O., ...
The article introduces the IJAS special issue on the Convergence of Sciences (CoS) research programme that took place in Benin and Ghana between 2002 and 2006. CoS sought to develop pro-poor pathways...
Virtual rose: a new tool to optimize plant architecture in glasshouse rose production systems (2007)
Buck-Sorlin, G.H., Burema, B.S., Evers, J.B., Heuvelink, E., Marcelis, L.F.M., ...
Essential minerals in the food chains: Can European research put the molecules to the mouth? (2007)
Stomph, T.J., Slingerland, M.A., Struik, P.C., Aarts, M., Brouwer, I.D.
He, W., Struik, P.C., Hu, J.J., Zhang, Y., Zhang, Z.Y., Lu, X.I., ...
study was carried out to investigate these effects and their interactions with effects of the other factors in sub-tropical double cropping systems. When evaluated at constant spacing, seed tuber...
T.R. - NJAS Wageningen Journal of Life Sciences (2007)
Lammerts Van Bueren, E.T., Amons, R., Struik, P.C., Wienk, J.F.
Dairy cow performance on silage from semi-natural grassland (2006)
M.H. Bruinenberg, P.C. Struik, H. Valk
The effects of including forage from semi-natural grassland in the diet of dairy cows were studied in a feeding trial with cows in mid-lactation. Diets were compared in which part of the silage from...
R.M. Muasya, E.O. Auma, P.C. Struik
The variation in individual seed electrical conductivity (EC) (µS cm−¹ g−¹) of 24 seed lots of two common bean cultivars produced at two locations was quantified using the parameters mean −...
R.M. Muasya, E.O. Auma, P.C. Struik
The variation in individual seed electrical conductivity (EC) (µS cm−¹ g−¹) of 24 seed lots of two common bean cultivars produced at two locations was quantified using the parameters mean −...
Dairy cow performance on silage from semi-natural grassland (2006)
M.H. Bruinenberg, P.C. Struik, H. Valk
The effects of including forage from semi-natural grassland in the diet of dairy cows were studied in a feeding trial with cows in mid-lactation. Diets were compared in which part of the silage from...
M.R. Simón, A.J. Wortland, P.C. Struik
Chromosomal location of resistance to Mycosphaerella graminicola was studied in substitution lines of resistant Triticum genotypes into the (susceptible) cultivar Chinese Spring (T. aestivum)....
A versatile curve-fit model for linear to deeply concave rank abundance curves (2006)
A new, flexible curve-fit model for linear to concave rank abundance curves was conceptualized and validated using observational data. The model links the geometric-series model and log-series model...
Variation in rank abundance replicate samples and impact of clustering (2006)
Calculating a single-sample rank abundance curve by using the negative-binomial distribution provides a way to investigate the variability within rank abundance replicate samples and yields a measure...
The impact of clustering on rank abundance, species-individual (S-N)and species-area curves was investigated using a computer programme for in silico sampling. In a rank abundance curve the...
M.R. Simón, A.J. Wortland, P.C. Struik
Chromosomal location of resistance to Mycosphaerella graminicola was studied in substitution lines of resistant Triticum genotypes into the (susceptible) cultivar Chinese Spring (T. aestivum)....
A versatile curve-fit model for linear to deeply concave rank abundance curves (2006)
A new, flexible curve-fit model for linear to concave rank abundance curves was conceptualized and validated using observational data. The model links the geometric-series model and log-series model...
Variation in rank abundance replicate samples and impact of clustering (2006)
Calculating a single-sample rank abundance curve by using the negative-binomial distribution provides a way to investigate the variability within rank abundance replicate samples and yields a measure...
The impact of clustering on rank abundance, species-individual (S-N)and species-area curves was investigated using a computer programme for in silico sampling. In a rank abundance curve the...
E. Ebregt, P.C. Struik, B. Odongo, P.E. Abidin
Field experiments were conducted in Soroti District, north-eastern Uganda, an area with two rainy seasons per calendar year, the first one with long, reliable rains and a second one with short, less...
F.M. Engels, P.C. Struik, J.W. Cone
The morphology and rumen fermentation kinetics of the maize cultivars (Zea mays L.) Vitaro and Volens were investigated in detail throughout their growing period as a first step towards understanding...
F.M. Engels, P.C. Struik, J.W. Cone
Internode 7 of the stem of two forage maize (Zea mays L.) cultivars was studied anatomically and chemically at anthesis and subjected to fermentation tests in rumen fluid, using an automated gas...
E. Ebregt, P.C. Struik, B. Odongo, P.E. Abidin
Field experiments were conducted in Soroti District, north-eastern Uganda, an area with two rainy seasons per calendar year, the first one with long, reliable rains and a second one with short, less...
F.M. Engels, P.C. Struik, J.W. Cone
The morphology and rumen fermentation kinetics of the maize cultivars (Zea mays L.) Vitaro and Volens were investigated in detail throughout their growing period as a first step towards understanding...
F.M. Engels, P.C. Struik, J.W. Cone
Internode 7 of the stem of two forage maize (Zea mays L.) cultivars was studied anatomically and chemically at anthesis and subjected to fermentation tests in rumen fluid, using an automated gas...
Evers, J.B., Vos, J., Andrieu, B., Struik, P.C.
¿ Background and Aims The production of axillary shoots (tillering) in spring wheat (Triticum aestivum) depends on intraspecific competition. The mechanisms that underlie this competition are...
Response of stored potato seed tubers from contrasting cultivars to accumulated day-degrees (2006)
Struik, P.C., Caldiz, D.O., Scholte, K.
In potato (Solanum tuberosum L.), the accumulated day-degrees (temperature sum, calculated by accumulating the daily temperatures) from dormancy break until seed tuber use has been suggested as an...
Muasya, R.M., Lommen, W.J.M., Auma, E.O., Struik, P.C.
The variation in individual seed electrical conductivity (EC) (µS cm¿¹ g¿¹) of 24 seed lots of two common bean cultivars produced at two locations was quantified using the parameters mean ¿...
Dairy cow performance on silage from semi-natural grassland (2006)
Bruinenberg, M.H., Struik, P.C., Valk, H.
The effects of including forage from semi-natural grassland in the diet of dairy cows were studied in a feeding trial with cows in mid-lactation. Diets were compared in which part of the silage from...
This contribution highlights some developments in agricultural science in general and plant science in particular. It also describes some changes in the way society looks upon science and scientists...
Socio-cultural determinants of yam and cowpea diversity (2006)
Zannou, A., Tossou, R.C., Vodouhè, S., Richards, P., Struik, P.C., Zoundjihékpon, J., ...
Learning with farmers to understand variation in sorghum (2006)
Kudadjie, C.Y., Struik, P.C., Offei, S.K., Richards, P., Atokple, I.D.K., Atengdem, P.B.
Reinventing agricultural research : Changing context and moving targets (2006)
Future food security for the rapidly increasing human population is at stake because farmers need to produce more food on less land and with less water and energy. Natural resources will be less and...
Yin, X., Harbinson, J., Struik, P.C.
Linear whole-chain electron (e) transport plays a dominant role in generating NADPH and ATP required for carbon fixation in chloroplasts. However, other e pathways may be present to contribute to the...
Letter to the editor: 'Cisgenic' as a product designation (2006)
Lammerts Van Bueren, E.T., Haring, M.A., Vriend, H.C., Struik, P.C.
Reekie, J.Y., Hincleton, P.R., Duval, J., Chandler, C., Struik, P.C.
Les auteurs ont étudié la tonte et l'application de prohexadione-calcium (ProCa), nouvel inhibiteur de la gibbérelline créé par biosynthèse, afin d'établir si ces méthodes modifient la...
Struik, P.C., Cassman, K.G., Koornneef, M.
In the future, more food needs to be produced with increasingly scarce natural resources. Genomics can play a key role in accelerating yield gains because it helps to improve our understanding...
In transplants from in vitro-derived plantlets from very early potato (Solanum tuberosum) cultivars, a lower degree of tuber induction at the time of field planting is thought to increase tuber...
Ook met soorteigen genen omzichtig manipuleren (2006)
Lammerts Van Bueren, E.T., Haring, M.A., Vriend, H.C., Struik, P.C.
Cisgenese is een vorm van genetische modificatie waarbij soorteigen genen worden gebruikt. Wageningse onderzoekers hebben ervoor gepleit deze techniek vrij te stellen van gebruikelijke regelgeving...
'Cisgenic' as a product designation. (2006)
Cock Buning, M. De, Lammerts Van Bueren, E.T., Haring, M.A., Vriend, M.G.A., Struik, P.C.
Effect of drought stress on barley-wheat intercropping (2006)
Woldeamlak, A., Kropff, M.J., Struik, P.C.
The effects of drought or moisture stress (MS1- no stress; MS2- stress at seedling stage and MS3- stress at heading stage) was studied for different crop ratios of barley (Hordeum vulgare) and wheat...
'Cisgenic' as a product designation. (2006)
Cock Buning, M. De, Lammerts Van Bueren, E.T., Haring, M.A., Vriend, M.G.A., Struik, P.C.
Securing renewable resource supplies for changing market demands in a bio-based economy (2005)
Establishment of a bio-based economy has been recognised as one of the key issues for sustainable development. For future developments renewable resources will play a key role as CO2 neutral raw...
Yin, X., Struik, P.C., Stam, P., Tang, J.J.
Combining ecophysiological modelling and genetic mapping has increasingly received attention from researchers who wish to predict complex plant or crop traits under diverse environmental conditions....
Model analysis of flowering phenology in recombinant inbred lines of barley (2005)
Yin, X., Struik, P.C., Tang, J.J., Qi, C., Liu, T.
A generic model for flowering phenology as a function of daily temperature and photoperiod was applied to predict differences of flowering times among 96 individuals (including the two parents) of a...
Evers, J.B., Vos, J., Fournier, C., Andrieu, B., Chelle, M., Struik, P.C.
This paper presents an architectural model of wheat (Triticum aestivum), designed to explain effects of light conditions at the individual leaf level on tillering kinetics. Various model variables,...
Association between septoria tritici blotch, plant height, and heading date in wheat (2005)
Simón, M.R., Perelló, A.E., Cordo, C.A., Larrán, S., Struik, P.C.
The relationship between resistance to Septoria tritici blotch with plant height and heading date has been in most cases attributed to genetic associations. More efficient selection for higher levels...
Ebregt, E., Struik, P.C., Odongo, B., Abidin, P.E.
The morphology and rumen fermentation kinetics of the maize cultivars (Zea mays L.) Vitaro and Volens were investigated in detail throughout their growing period as a first step towards understanding...
Heilersig, H.J.B., Kodde, L.P., Voorrips, R.E., Struik, P.C., ...
A set of test crosses of diploid potatoes was used to identify QTLs for foliage resistance against Phytophthora infestans and QTLs for foliage maturity type, and to assess their genetic relationship....
Integrity and rights of plants : ethical notions in organic plant breeding and propagation (2005)
Lammerts Van Bueren, E.T., Struik, P.C.
In addition to obviating the use of synthetic agrochemicals and emphasizing farming in accordance with agro-ecological guidelines, organic farming acknowledges the integrity of plants as an essential...
Malosetti Zunin, M., Yin, X., Struik, P.C., Stam, P.
To study the performance of genotypes under different growing conditions, plant breeders evaluate their germplasm in multi-environment trials. These trials produce genotype × environment data. We...
Adaptation and stability analysis of sweet potato varieties for low-input systems in Uganda (2005)
Abidin, P.E., Stam, P., Struik, P.C., Malosetti Zunin, M., Mwanga, R.O.M., ...
Sixteen sweet potato varieties were evaluated for fresh storage root yield in 20 trials during 2000¿2001 for three seasons in four locations in Uganda. Of the 16 varieties, 11 were developed by...
Complex quality traits : now time to model (2005)
A recently published dynamic peach model by Françoise Lescourret and Michel Ge¿nard simulates changes in quality during final stages of fruit growth. It predicts quality, emerging from complex...
Are cuttings suitable for assessing maturity type in potato (Solanum tuberosum)? (2005)
Struik, P.C., Pauwels, J.P., Colon, L.T.
Two experiments were carried out to evaluate the potential of single-node cuttings of potato (Solanum tuberosum) as a tool to assess genotypic differences in maturity type. Plants were exposed to...
Engels, F.M., Struik, P.C., Cone, J.W.
The morphology and rumen fermentation kinetics of the maize cultivars (Zea mays L.) Vitaro and Volens were investigated in detail throughout their growing period as a first step towards understanding...
Engels, F.M., Struik, P.C., Cone, J.W.
Internode 7 of the stem of two forage maize (Zea mays L.) cultivars was studied anatomically and chemically at anthesis and subjected to fermentation tests in rumen fluid, using an automated gas...
The effect of grassland management on bovine nitrogen efficiency (2005)
Hoekstra, N.J., Schulte, R.P.O., Lantinga, E.A., Struik, P.C.
The impact of clustering on rank abundance, species-individual (S-N)and species-area curves was investigated using a computer programme for in silico sampling. In a rank abundance curve the...
A versatile curve-fit model for linear to deeply concave rank abundance curves (2005)
A new, flexible curve-fit model for linear to concave rank abundance curves was conceptualized and validated using observational data. The model links the geometric-series model and log-series model...
Variation in rank abundance replicate samples and impact of clustering (2005)
Calculating a single-sample rank abundance curve by using the negative-binomial distribution provides a way to investigate the variability within rank abundance replicate samples and yields a measure...
Simón, M.R., Worland, A.J., Struik, P.C.
Chromosomal location of resistance to Mycosphaerella graminicola was studied in substitution lines of resistant Triticum genotypes into the (susceptible) cultivar Chinese Spring (T. aestivum)....
C.Y. Kudadjie, P.C. Struik, P. Richards, S.K. Offei
This paper reports on the results of a diagnostic study conducted to assess the problems and needs of sorghum farmers in north-east Ghana with the aim of determining the type of research that would...
Yam and cowpea diversity management by farmers in the Guinea-Sudan transition zone of Benin (2004)
A. Zannou, A. Ahanchede, P.C. Struik, P. Richards, J. Zoundjihekpon, R. Tossou, ...
The maintenance and utilization of crop genetic diversity is important to ensure food security. The relative importance of yam and cowpea varieties and the influence of the socio-cultural and local...
Yam and cowpea diversity management by farmers in the Guinea-Sudan transition zone of Benin (2004)
A. Zannou, A. Ahanchede, P.C. Struik, P. Richards, J. Zoundjihekpon, R. Tossou, ...
The maintenance and utilization of crop genetic diversity is important to ensure food security. The relative importance of yam and cowpea varieties and the influence of the socio-cultural and local...
C.Y. Kudadjie, P.C. Struik, P. Richards, S.K. Offei
This paper reports on the results of a diagnostic study conducted to assess the problems and needs of sorghum farmers in north-east Ghana with the aim of determining the type of research that would...
E. Ebregt, P.C. Struik, P.E. Abidin, B. Odongo
Farmers in five districts of north-eastern Uganda were interviewed to generate information on sweet potato production and constraints, with emphasis on damage by millipedes. Participatory rural...
E. Ebregt, P.C. Struik, P.E. Abidin, B. Odongo
Sweet potato (Ipomoea batatas (L.) Lamk) is an important staple food for the people of north-eastern Uganda. Crop yields per unit area are low partly because of biological constraints, including...
The consequences of the concept of naturalness for organic plant breeding and propagation (2004)
Organic agriculture is enhancing specific plant breeding activities to meet its requirements for varieties better adapted to the specific organic environment. To guide this proces the concept of...
E. Ebregt, P.C. Struik, P.E. Abidin, B. Odongo
Farmers in five districts of north-eastern Uganda were interviewed to generate information on sweet potato production and constraints, with emphasis on damage by millipedes. Participatory rural...
E. Ebregt, P.C. Struik, P.E. Abidin, B. Odongo
Sweet potato (Ipomoea batatas (L.) Lamk) is an important staple food for the people of north-eastern Uganda. Crop yields per unit area are low partly because of biological constraints, including...
The consequences of the concept of naturalness for organic plant breeding and propagation (2004)
Organic agriculture is enhancing specific plant breeding activities to meet its requirements for varieties better adapted to the specific organic environment. To guide this proces the concept of...
Bruinenberg, M.H., Valk, H., Struik, P.C.
To assess the effect of grassland management on the ruminal digestion of silages, four lactating dairy cows, fitted with a rumen cannula, were fed diets consisting of concentrates and different grass...
Role of crop physiology in predicting gene-to-phenotype relationships (2004)
Yin, X., Struik, P.C., Kropff, M.J.
Robust crop physiological modelling could become an essential tool in explaining crop behaviour using insights from functional genomics. Current crop models can predict crop performance over a range...
Simón, M.R., Worland, A.J., Struik, P.C.
The effects of plant height and heading date on the expression of the resistance to Septoria tritici blotch, which is caused by the fungus Mycosphaerella graminicola (Fuckel) Schroeter, in Cohn...
Correlation between late blight resistance and foliage maturity type in potato (2004)
Keizer, L.C.P., Struik, P.C., Colon, L.T.
The genetics of race-non-specific foliage resistance against Phytophthora infestans, of foliage maturity type, and of their association in potato (Solanum tuberosum) were studied. Six progenies were...
Incorporation of 3D plant structures in genetic and physiological models (2004)
Marcelis, L.F.M., Angenent, G.C., Evers, J.B., Struik, P.C., ...
The recently developed virtual plant modelling approach has strongly increased the potential of model applications in crop sciences. Virtual plants are based on a new modelling concept and are...
Modelling differential phenotypic expression (2004)
Malosetti Zunin, M., Yin, X., Struik, P.C., Stam, P.
To study the performance of genotypes under different growing conditions, plant breeders evaluate their germplasm in multi-environment trials. These trials produce genotype by environment data. We...
The consequences of the concept of naturalness for organic plant breeding and propagation (2004)
Lammerts Van Bueren, E.T., Struik, P.C.
Organic agriculture is enhancing specific plant breeding activities to meet its requirements for varieties better adapted to the specific organic environment. In the past five years, therefore,...
PPO en WU: knolsortering nog moeilijk te sturen (2004)
Bus, C.B., Struik, P.C., Veerman, A.
Een voorspelling voor de aanleg, over het aantal knollen dat aan een aardappelplant zal komen, is onmogelijk. Dit concluderen Kees Bus, Paul Struik en Arjan Veerman van Praktijkonderzoek Plant en...
Preliminary efforts at sorghum varietal improvement with farmers in North-Eastern Ghana (2004)
Kudadjie, C.Y., Atokple, I.D.K., Offei, S.K., Struik, P.C., Richards, P., Atengdem, P.B.
Sodium has been found to be a scarce element needed and sought by mammals. To date, most geophagical studies have mainly concentrated on sodium in the soil with limited attention being given to the...
A 3D approach for modelling tillering in wheat (Triticum aestivum L.) (2004)
Evers, J.B., Vos, J., Fournier, C., Andrieu, B., Chelle, M., Struik, P.C.
Ebregt, E., Struik, P.C., Abidin, P.E., Odongo, B.
Sweet potato (Ipomoea batatas (L.) Lamk) is an important staple food for the people of north-eastern Uganda. Crop yields per unit area are low partly because of biological constraints, including...
Ebregt, E., Struik, P.C., Abidin, P.E., Odongo, B.
Sweet potato (Ipomoea batatas (L.) Lamk) is an important staple food for the people of north-eastern Uganda. Crop yields per unit area are low partly because of biological constraints, including...
Kudadjie, C.Y., Struik, P.C., Richards, P., Offei, S.K.
This paper reports on the results of a diagnostic study conducted to assess the problems and needs of sorghum farmers in north-east Ghana with the aim of determining the type of research that would...
Yam and cowpea diversity management by farmers in the Guinea-Sudan transition zone of Benin (2004)
Zannou, A., Ahanchédé, A., Struik, P.C., Richards, P., Zoundjihékpon, J., Tossau, R., ...
The maintenance and utilization of crop genetic diversity is important to ensure food security. The relative importance of yam and cowpea varieties and the influence of the socio-cultural and local...
Diagnostic studies: a research phase in the Convergence of Sciences programme (2004)
Hounkonnou, D., Offei, S.K., Röling, N.G., Tossou, R., Struik, P.C., ...
T.R. - NJAS Wageningen Journal of Life Sciences (2004)
Hounkonnou, D., Offei, S.K., Röling, N.G., Tossou, R., Struik, P.C., Wienk, J.F.
M.H. Bruinenberg, H. Valk, P.C. Struik
To study in vivo digestibility of forages from semi-natural grasslands two experiments were carried out. In the first experiment lactating dairy cows were offered three different silage-based diets....
By 1 January 2004, as a result of EU-regulation 2092/91 for organic farming, the organic sector needs to have developed efficient schemes to be able to use adequate quantities of organically produced...
M.H. Bruinenberg, H. Valk, P.C. Struik
To study in vivo digestibility of forages from semi-natural grasslands two experiments were carried out. In the first experiment lactating dairy cows were offered three different silage-based diets....
By 1 January 2004, as a result of EU-regulation 2092/91 for organic farming, the organic sector needs to have developed efficient schemes to be able to use adequate quantities of organically produced...
A new scope for the Netherlands Journal of Agricultural Science (2003)
This paper first looks at the changes in agricultural research structures, research questions and research culture in the Netherlands. In the context of these changes, the future scope, readership...
A new scope for the Netherlands Journal of Agricultural Science (2003)
This paper first looks at the changes in agricultural research structures, research questions and research culture in the Netherlands. In the context of these changes, the future scope, readership...
Schulte, R.P.O., Lantinga, E.A., Struik, P.C.
The increased use of white clover in grasslands has led to new management challenges, as mixed pastures have been associated with unstable herbage production. The stability of mixed pastures depends...
Keizer, L.C.P., Jacobsen, E., Colon, L.T., Struik, P.C.
We investigated the association between late blight resistance and foliage maturity type in potato by means of molecular markers. Two QTLs were detected for foliage resistance against Phytophthora...
Pruski, K., Astatkie, T., Duplessis, P., Lewis, T., Nowak, J., Struik, P.C.
A two-year study was conducted to determine the effects of (1) jasmonic cid (JA) pre-treatment, (2) JA supplement in culture media, (3) cultivar (Amisk, Atlantic, Russet Burbank, Shepody, and...
Manipulation of microtubers for direct field utilization in seed production (2003)
Pruski, K., Astatkie, T., Duplessis, P., Stewart, L., Nowak, J., Struik, P.C.
A two-year field study was conducted to determine the effects of jasmonic acid (JA), light (during in vitro explant production and in vitro tuberization phases), and dormancy-bearing treatment on...
Concepts of intrinsic value and integrity of plants in organic plant breeding and propagation (2003)
Lammerts Van Bueren, E.T., Struik, P.C., Tiemens-Hulscher, M., Jacobsen, E.
Manipulating transplant morphology to advance and enhance fruit yield in strawberry (2003)
Reekie, J.Y., Hincleton, P.R., Duval, J., Chandler, C., Struik, P.C.
Strawberry plants are vegetatively propagated in northern nurseries to supply fruit production farms in the southern United States of America. Digging actively growing plants in the fall from...
Lammerts Van Bueren, E.T., Struik, P.C., Jacobsen, E.
By 1 January 2004, as a result of EU-regulation 2092/91 for organic farming, the organic sector needs to have developed efficient schemes to be able to use adequate quantities of organically produced...
Bruinenberg, M.H., Valk, H., Struik, P.C.
To study in vivo digestibility of forages from semi-natural grasslands two experiments were carried out. In the first experiment lactating dairy cows were offered three different silage-based diets....
T.R. - NJAS Wageningen Journal of Life Sciences (2003)
Wiskerke, J.S.C., Verhoeven, F.P.M., Brussaard, L., Struik, P.C., Wienk, J.F.
Ecological concepts in organic farming and their consequences for an organic crop ideotype (2002)
Currently, organic farmers largely depend on varieties supplied by conventional plant breeders and developed for conventional farming systems. The organic farming system differs fundamentally in soil...
Ecological concepts in organic farming and their consequences for an organic crop ideotype (2002)
Currently, organic farmers largely depend on varieties supplied by conventional plant breeders and developed for conventional farming systems. The organic farming system differs fundamentally in soil...
Enset (Ensete ventricosum) production is declining, and it faces genetic erosion due to drought, diseases and population pressure. Participatory Rural Appraisal (PRA) and additional formal survey...
Caldiz, D.O., Haverkort, A.J., Struik, P.C.
This paper shows how a highly complex potato production system, like the Argentinian one, can be surveyed and analysed. A survey was complemented with the use of a Geographic Information System and a...
Wossink, G.A.A., Struik, P.C., Renkema, J.A.
Sustainability embraces socio-economic and bio-ecological dimensions or attributes. This paper presents a conceptual framework for quantifying sustainability on the basis of efficiency theory...
Factors affecting digestibility of temperate forages from semi-natural grasslands (2002)
Bruinenberg, M.H., Valk, H., Korevaar, H., Struik, P.C.
To indicate possibilities for the use of forages from seminatural grasslands in ruminant production systems, a literature study to describe the nutritive value of those forages was carried out. In...
Abidin, P.E., Stam, P., Struik, P.C., Zhang, D.P., Hermann, M., ...
Ugandan farmers grow many landrace sweetpotato varieties, but some of these are relatively low yielding and susceptible to pests. The objective of the present research was to involve farmers in a...
Factors affecting digestibility of temperate forages from seminatural grasslands : a review (2002)
Bruinenberg, M.H., Valk, H., Korevaar, H., Struik, P.C.
To indicate possibilities for the use of forages from seminatural grasslands in ruminant production systems, a literature study to describe the nutritive value of those forages was carried out. In...
Ecological concepts in organic farming and their consequences for an organic crop ideotype (2002)
Lammerts Van Bueren, E.T., Struik, P.C., Jacobsen, E.
Currently, organic farmers largely depend on varieties supplied by conventional plant breeders and developed for farming systems in which artificial fertilizers and agro-chemicals are widely used....
Wossink, G.A.A., Struik, P.C., Renkema, J.A.
Sustainability embraces socio-economic and bio-ecological dimensions or attributes. This paper presents a conceptual framework for quantifying sustainability on the basis of efficiency theory...
Virtuele planten in onderzoek, onderwijs en marketing (2002)
Visser, P.H.B., Marcelis, L.F.M., Evers, J.B., Vos, J., Struik, P.C.
A new scope for the Netherlands Journal of Agricultural Science (2002)
Jongen, W.M.F., Struik, P.C., Wienk, J.F.
This paper first looks at the changes in agricultural research structures, research questions and research culture in the Netherlands. In the context of these changes, the future scope, readership...
Wossink, G.A.A., Struik, P.C., Renkema, J.A.
Sustainability embraces socio-economic and bio-ecological dimensions or attributes. This paper presents a conceptual framework for quantifying sustainability on the basis of efficiency theory...
Abidin, P.E., Stam, P., Struik, P.C., Zhang, D.P., Hermann, M., ...
Ugandan farmers grow many landrace sweetpotato varieties, but some of these are relatively low yielding and susceptible to pests. The objective of the present research was to involve farmers in a...
Development of leaf area and leaf number of micropropagated potato plants (2001)
Aboveground leaf area and leaf number development of in vitro produced potato plantlets was studied over three growth phases. In vitro plantlets were produced at 17 or 23°C (normalisation phase,...
Leaf area increase of individual, in vitro produced potato plantlets was analysed over three growth phases: in vitro normalisation (3 weeks, 17 or 23°C), transplant production (2 weeks. 18/12 or...
To assess (after)effects of temperature on plant development, in vitro potato plantlets produced at 17 or 23°C (normalization phase, 3 weeks) were planted into soil in growth chambers at 18/12 or...
In vitro propagated potato plantlets, cultivars Gloria and Spunta, were pre-treated with 10 or 40 mg nitrogen per plant before transplanting to the field to determine after-effects of nitrogen on...
The kocho yield of enset, in terms of weight and energy, under different crop establishment methods, was investigated at Areka Research Centre, southern Ethiopia, and compared with the yields of...
A. Woldeamlak, L. Bastiaans, P.C. Struik
Barley and wheat mixtures were grown in the field using additive and replacement ratios at two locations (Halhale and Mendefera) in Eritrea during the 1997 and 1998 seasons. The aim was to assess...
Development of leaf area and leaf number of micropropagated potato plants (2001)
Aboveground leaf area and leaf number development of in vitro produced potato plantlets was studied over three growth phases. In vitro plantlets were produced at 17 or 23°C (normalisation phase,...
Leaf area increase of individual, in vitro produced potato plantlets was analysed over three growth phases: in vitro normalisation (3 weeks, 17 or 23°C), transplant production (2 weeks. 18/12 or...
To assess (after)effects of temperature on plant development, in vitro potato plantlets produced at 17 or 23°C (normalization phase, 3 weeks) were planted into soil in growth chambers at 18/12 or...
In vitro propagated potato plantlets, cultivars Gloria and Spunta, were pre-treated with 10 or 40 mg nitrogen per plant before transplanting to the field to determine after-effects of nitrogen on...
The kocho yield of enset, in terms of weight and energy, under different crop establishment methods, was investigated at Areka Research Centre, southern Ethiopia, and compared with the yields of...
A. Woldeamlak, L. Bastiaans, P.C. Struik
Barley and wheat mixtures were grown in the field using additive and replacement ratios at two locations (Halhale and Mendefera) in Eritrea during the 1997 and 1998 seasons. The aim was to assess...
Simón, M.R., Worland, A.J., Cordo, C.A., Struik, P.C.
Chromosomal location of resistance to two virulent Argentinean isolates of Septoria tritici was studied in two wheat ( Triticum aestivum L.) cultivars (Cappelle-Desprez & Cheyenne), a synthetic...
Caldiz, D.O., Gaspari, F.J., Haverkort, A.J., Struik, P.C.
Potato is the most important horticultural crop in Argentina and at present 100,000 ha are grown in different regions and seasons. The four possible growing seasons are defined as early...
Woldeamlak, A., Bastiaans, L., Struik, P.C.
Barley and wheat mixtures were grown in the field using additive and replacement ratios at two locations (Halhale and Mendefera) in Eritrea during the 1997 and 1998 seasons. The aim was to assess...
The kocho yield of enset, in terms of weight and energy, under different crop establishment methods, was investigated at Areka Research Centre, southern Ethiopia, and compared with the yields of...
Tadesse, M., Lommen, W.J.M., Struik, P.C.
In vitro propagated potato plantlets, cultivars Gloria and Spunta, were pre-treated with 10 or 40 mg nitrogen per plant before transplanting to the field to determine after-effects of nitrogen on...
Tadesse, M., Lommen, W.J.M., Struik, P.C.
To assess (after)effects of temperature on plant development, in vitro potato plantlets produced at 17 or 23°C (normalization phase, 3 weeks) were planted into soil in growth chambers at 18/12 or...
Tadesse, M., Lommen, W.J.M., Struik, P.C.
Leaf area increase of individual, in vitro produced potato plantlets was analysed over three growth phases: in vitro normalisation (3 weeks, 17 or 23°C), transplant production (2 weeks. 18/12 or...
Development of leaf area and leaf number of micropropagated potato plants (2001)
Tadesse, M., Lommen, W.J.M., Struik, P.C.
Aboveground leaf area and leaf number development of in vitro produced potato plantlets was studied over three growth phases. In vitro plantlets were produced at 17 or 23°C (normalisation phase, 3...
This paper highlights two aspects that are crucial in the management of agricultural nonpoint-source pollution but that are typically not taken into account in applied economic studies. Firstly,...
Agro-eclogical zoning and potential yield of single or double cropping of potato in Argentina (2001)
Time to pod set and seed position on the plant were studied as possible within-plant components contributing to variation in quality of seeds within seed lots of soyabean (Glycine max) cultivar...
Morphological analysis of leaf growth of maize: responses to temperature and light intensity (2000)
H.J. Bos, H. Tijani-Eniola, P.C. Struik
To increase understanding of the mechanisms involved in leaf-area expansion in the Poaceae, effects of environmental factors on leaf growth of the non-tillering species maize (Zea mays L.) were...
Morphological analysis of plant density effects on early leaf area growth in maize (2000)
The mechanisms of density-related reduced leaf area per plant in non-tillering maize (Zea mays) were investigated. Maize cv. Luna crops with a wide range of plant densities were grown in the field at...
Time to pod set and seed position on the plant were studied as possible within-plant components contributing to variation in quality of seeds within seed lots of soyabean (Glycine max) cultivar...
Morphological analysis of leaf growth of maize: responses to temperature and light intensity (2000)
H.J. Bos, H. Tijani-Eniola, P.C. Struik
To increase understanding of the mechanisms involved in leaf-area expansion in the Poaceae, effects of environmental factors on leaf growth of the non-tillering species maize (Zea mays L.) were...
Morphological analysis of plant density effects on early leaf area growth in maize (2000)
The mechanisms of density-related reduced leaf area per plant in non-tillering maize (Zea mays) were investigated. Maize cv. Luna crops with a wide range of plant densities were grown in the field at...
Morphological analysis of leaf growth of maize : responses to temperature and light intensity (2000)
Bos, H.J., Tijani-Eniola, H., Struik, P.C.
To increase understanding of the mechanisms involved in leaf-area expansion in the Poaceae, effects of environmental factors on leaf growth of the non-tillering species maize (Zea mays L.) were...
Morphological analysis of plant density effects on early leaf area growth in maize (2000)
Bos, H.J., Vos, J., Struik, P.C.
The mechanisms of density-related reduced leaf area per plant in non-tillering maize (Zea mays) were investigated. Maize cv. Luna crops with a wide range of plant densities were grown in the field at...
Illipronti, R.A., Langerak, C.J., Lommen, W.J.M., Struik, P.C.
In a glasshouse experiment it was examined whether narrow grading and selection from a commercial soybean seed lot cultivar ‘IAS-5’, could improve the uniformity of the seed crop grown from it...
Illipronti, R.A., Lommen, W.J.M., Langerak, C.J., Struik, P.C.
Time to pod set and seed position on the plant were studied as possible within-plant components contributing to variation in quality of seeds within seed lots of soyabean (Glycine max) cultivar...
Does the crop or the soil indicate how to save nitrogen in maize production? (2000)
Schröder, J.J., Neeteson, J.J., Oenema, O., Struik, P.C.
High nitrogen (N) application rates are used by maize growers as an ‘insurance’, but may have an adverse effect on the environment. In this paper, the potential for nitrogen savings by the use of...
Agronomy of fibre hemp (Cannabis sativa L.) (2000)
Struik, P.C., Amaducci, S., Bullard, M.J., Stutterheim, N.C., Venturi, G., Cromack, H.T.H.
Crop establishment methods affected the growth, dry matter production and distribution in enset (Ensete ventricosum) plants studied at the Areka Research Centre, North Omo, Southern Ethiopia. Enset...
Schroder, J.J., Neeteson, J.J., Oenema, O., Struik, P.C.
High nitrogen (N) application rates are used by maize growers as an ‘insurance’, but may have an adverse effect on the environment. In this paper, the potential for nitrogen savings by the use of...
Wossink, G.A.A., Struik, P.C., Renkema, J.
Environmental legislation is forcing a rethink about desirable crop production systems. The development of new production systems that meet economic and environmental objectives demands knowledge...
Agronomy of fibre hemp in Europe (1999)
Struik, P.C., Stutterheim, N.C., Amaducci, S., Venturi, G., Bullard, M., Cromack, H.T.H.
Agronomy of fibre hemp (Cannabis sativa L.) in Europe (1999)
Struik, P.C., Amaducci, S., Bullard, M.J., Stutterheim, N.C., Venturi, G., Cromack, H.T.H.
Referent: Prof. Dr. H. Stützel (1999)
Vom Fachbereich Gartenbau, Doktors Der Gartenbauwissenschaften, Korreferent Prof, Dr. P. C. Struik
- Dr. rer. hort.-genehmigte
J.H. Neuteboom, E.A. Lantinga, P.C. Struik
With the Dry Weight Rank (DWR) method of 't Mannetje and Haydock [see Journal of British Grassland Society (1963) 18, 268-275] for botanical analysis in pastures, the dry weight proportions of...
J.H. Neuteboom, E.A. Lantinga, P.C. Struik
With the Dry Weight Rank (DWR) method of 't Mannetje and Haydock [see Journal of British Grassland Society (1963) 18, 268-275] for botanical analysis in pastures, the dry weight proportions of...
Neuteboom, J.H., Lantinga, E.A., Struik, P.C.
With the Dry Weight Rank (DWR) method of 't Mannetje and Haydock [see Journal of British Grassland Society (1963) 18, 268-275] for botanical analysis in pastures, the dry weight proportions of...
The pattern of flowering, seed set, seed growth and ripening along the ear of Lolium perenne (1998)
Warringa, J.W., Struik, P.C., De Visser, R., Kreuzer, A.D.H.
Leerplan agronomisch ontwerpen. Doel, inhoud en aanpak van het ontwerpersblok. (1997)
Korsman, M.G., Challa, H., Goewie, E.A., Kropff, M.J., Struik, P.C., Ruissen, M.A., ...
Resource use at the cropping system level. (1997)
This paper illustrates the basic ideas of good crop rotations, adequate crop husbandry and high resource-use efficiencies and some relevant ecological approaches. The use of special crops to prevent...
Forty years of potato research: highlights, achievements and prospects. (1997)
Struik, P.C., Askew, M.F., Sonnino, A., MacKerron, D.K.L., Bang, U., Ritter, E., ...
Seven series of laboratory and glasshouse experiments were conducted to investigate different methods of testing and studying the effect of several chemicals, root exudates of germinating crop seeds,...
Seven series of laboratory and glasshouse experiments were conducted to investigate different methods of testing and studying the effect of several chemicals, root exudates of germinating crop seeds,...
H. Biemond, J. Vos, P.C. Struik
Four greenhouse and 2 field experiments (the latter on a sandy soil) were carried out with different amounts and dates of N application to analyse the dynamics of dry matter and N accumulation in...
H. Biemond, J. Vos, P.C. Struik
Four greenhouse and 2 field experiments (the latter on a sandy soil) were carried out with different amounts and dates of N application to analyse the dynamics of dry matter and N accumulation in...
J. Vos, H. Biemond, P.C. Struik
In a greenhouse pot experiment with Brussels sprouts grown in sand, 4 treatments were compared: a control without N limitation, a continuously N-deficient control and 2 treatments with a switch from...
J. Vos, H. Biemond, P.C. Struik
In a greenhouse pot experiment with Brussels sprouts grown in sand, 4 treatments were compared: a control without N limitation, a continuously N-deficient control and 2 treatments with a switch from...
Struik, P.C., Hoogendoorn, J., Kouwenhoven, J.K., Mastenbroek, I., Turkensteen, L.J., Veerman, A., ...
Vos, J., Biemond, H., Struik, P.C.
In a greenhouse pot experiment with Brussels sprouts grown in sand, 4 treatments were compared: a control without N limitation, a continuously N-deficient control and 2 treatments with a switch from...
Biemond, H., Vos, J., Struik, P.C.
Four greenhouse and 2 field experiments (the latter on a sandy soil) were carried out with different amounts and dates of N application to analyse the dynamics of dry matter and N accumulation in...
Seven series of laboratory and glasshouse experiments were conducted to investigate different methods of testing and studying the effect of several chemicals, root exudates of germinating crop seeds,...
Struik, P.C., Hoogendoorn, J., Kouwenhoven, J.K., Mastenbroek, I., Turkensteen, L.J., Veerman, A., ...
Nitrogen effects in sugar beet growing: a module for decision support (1995)
PIEteR, a field-specific production model for sugarbeet in the Netherlands, is described. The model was developed as a basis for decision support, for example in determining N fertilizer...
H. Biemond, J. Vos, P.C. Struik
Three greenhouse trials and one field trial were carried out on Brussels sprout cv. Icarus SG2004 in which the treatments consisted of different N amounts and application dates. DM and N accumulation...
Nitrogen effects in sugar beet growing: a module for decision support (1995)
PIEteR, a field-specific production model for sugarbeet in the Netherlands, is described. The model was developed as a basis for decision support, for example in determining N fertilizer...
H. Biemond, J. Vos, P.C. Struik
Three greenhouse trials and one field trial were carried out on Brussels sprout cv. Icarus SG2004 in which the treatments consisted of different N amounts and application dates. DM and N accumulation...
The need to study and manage variation in agro-ecosystems (1995)
Variation within agro-ecosystems is a universal but complex phenomenon which is present in each of the factors that determine the agro-ecosystem, i.e. the environment, genetic resources and...
H. Biemond, J. Vos, P.C. Struik
In greenhouse pot trials, Brussels sprouts cv. Icarus SG2004 plants were supplied with various amounts of N at different stages during growth. The rate of leaf emergence ranged from 0.39 to 0.72 per...
The need to study and manage variation in agro-ecosystems (1995)
Variation within agro-ecosystems is a universal but complex phenomenon which is present in each of the factors that determine the agro-ecosystem, i.e. the environment, genetic resources and...
H. Biemond, J. Vos, P.C. Struik
In greenhouse pot trials, Brussels sprouts cv. Icarus SG2004 plants were supplied with various amounts of N at different stages during growth. The rate of leaf emergence ranged from 0.39 to 0.72 per...
Biemond, H., Vos, J., Struik, P.C.
In greenhouse pot experiments and field trials, leek cv. Albana plants were supplied with different amounts of N fertilizer at various growth stages. Leaf emergence, expansion, size and senescence...
The need to study and manage variation in agro-ecosystems. (1995)
Almekinders, C.J.M., Fresco, L.O., Struik, P.C.
Variation within agro-ecosystems is a universal but complex phenomenon which is present in each of the factors that determine the agro-ecosystem, i.e. the environment, genetic resources and...
Nitrogen effects in sugar beet growing: a module for decision support. (1995)
PIEteR, a field-specific production model for sugarbeet in the Netherlands, is described. The model was developed as a basis for decision support, for example in determining N fertilizer...
Biemond, H., Vos, J., Struik, P.C.
Three greenhouse trials and one field trial were carried out on Brussels sprout cv. Icarus SG2004 in which the treatments consisted of different N amounts and application dates. DM and N accumulation...
Management of variation in agro-ecosystems: the potential offered by agrodiversity. (1995)
Struik, P.C., Fresco, L.O., Almekinders, C.J.M., Louwaars, N.P.
In two phytotron experiments with different potato cultivars (experiment 1: cv. Atzimba and Van Gogh; experiment 2: cv. Spunta and Desiree), a study was made of the effects of temperature (15-27...
In two phytotron experiments with different potato cultivars (experiment 1: cv. Atzimba and Van Gogh; experiment 2: cv. Spunta and Desiree), a study was made of the effects of temperature (15-27...
Themadag Stikstofstromen in de Vollegrondsgroenteteelt. Themaboekje 18. (1994)
Haverkort, A.J., Zwart, K.B., Struik, P.C., Dekker, P.H.M., Bosch, H.K.J.
Simane, B., Stol, W., Struik, P.C.
A spring wheat growth model (SUCROS-87) was used to identify moisture stress periods during the growing seasons and simulate yield potentials of durum wheat (Triticum turgidum var. durum) in six...
Almekinders, C.J.M., Struik, P.C.
In two phytotron experiments with different potato cultivars (experiment 1: cv. Atzimba and Van Gogh; experiment 2: cv. Spunta and Desiree), a study was made of the effects of temperature (15-27...
Plant production on the threshold of a new century. (1994)
Struik, P.C., Vredenberg, W.J., Renkema, J.A., Parlevliet, J.E.
Performance of potato minitubers in a controlled environment after different storage periods. (1993)
Gemengd bedrijf: verleden of toekomst? (1992)
Biewenga, R., Huisman, P., Inghels, P., Jacobs, M., Mantingh, R., ...
Wageningen Manifesto. Improve the prospects of arable farming. (1991)
Struik, P.C., Veerman, C.P., Schouls, J., ...
Mogelijke betekenis voor de akkerbouw. Agrificatie komt voor veel boeren een bedrijf te laat. (1991)
Problematiek en vooruitzichten van de Nederlandse akkerbouw. (1991)
Struik, P.C., Veerman, C.P., Schouls, J., ...
Wagenings Manifest: haal de akkerbouw uit het slop! (1991)
Struik, P.C., Veerman, C.P., Schouls, J., ...
Manipulation of tuber-size distribution of a potato crop. (1990)
Struik, P.C., Haverkort, A.J., Vreugdenhil, D., Bus, C.B., Dankert, R.
Duurzame landbouw. Modekreet of harde realiteit voor de akkerbouw? (1990)
Holwerda, H.Tj., Oldenkamp, P., Scheppers, P., Struik, P.C., ...
Manipulation of tuber-size distribution of a potato crop. (1990)
Struik, P.C., Haverkort, A.J., Vreugdenhil, D., Bus, C.B., Dankert, R.
Onderzoek naar knolaanleg, knolgroei en knolsortering bij de aardappel (Solanum tuberosum L.) (1985)
De Koeijer, T. J., Wossink, G. A. A., Smit, A. B., Janssens, S. R. M., Renkema, J. A., Struik, P. C.