R. L. Thomas

Publication List Details

Period

1966 - 2005

Number

28

Co-Authors

Arene-perfluoroarene interactions in crystal engineering : part 3 : single-crystal structures of 1 : 1 complexes of octafluoronaphthalene with fused-ring polyaromatic hydrocarbons. (2001)

Collings, J. C., Roscoe, K. P., Thomas, R. L., Batsanov, A. S., Stimson, L. M., Howard, J. A. K., ...

Molecular complexes of 1:1 stoichiometry of octafluoronaphthalene (OFN) with the polyaromatic hydrocarbons anthracene, phenanthrene, pyrene and triphenylene have been prepared, and their...

The Generative Spiral in Phyllotaxis Theory (1980)

THOMAS, R. L., CANNELL, M. G. R.

The biomathematics of logarithmic generative spirals are linked with classical theories of orthostichy, parastichy and plastochrone ratio (r). The constant angle between any tangent to a logarithmic...

Orthostichy, Parastichy and Plastochrone Ratio in a Central Theory of Phyllotaxis (1975)

THOMAS, R. L.

A view of phyllotaxis theory is proposed which combines the essentials of the orthostichy, parastichy and plastochrone ratio ideas. The advocated thesis takes cognisance of the biologically exact...

Evaluation of the Influence of the Male Parent on Seed Development in Lolium (1974)

THOMAS, R. L.

Analysis of the parental plants of a diallel series of crosses between six ryegrass climatic races for mean seed weight and percentage seed set is presented. Seed weight is shown to be entirely under...

Induced Parthenocarpy in the Oil-palm (1973)

THOMAS, R. L., SETH, A. K., CHAN, K. W., OOI, S. C.

Parthenocarpy induced by application of exogenous growth substances to Dura and Tenera oil palms is reported. A range of chemicals are effective to varying degrees; being in roughly decreasing ranked...

Analysis of Variation in Growth Habit of Lolium Populations (1973)

THOMAS, R. L.

Genetic variation in growth habit between six contrasting populations of Lolium perenne and L. multiflorum is analysed by means of a complete diallel grown in three seasonal environments. The main...

Fruit Ripening in the Oil-palm Elaeis guineensis (1971)

THOMAS, R. L., SEW, P'HANG, MOK, C. K., CHAN, K. W., EASAU, P. T., NG, S. C.

Some gross morphological, biochemical, and quantitative size changes of the fruit which occur during the 150 or 80 days from fertilization to ripeness for this species are described. Three main...

Phyllotaxis in the Oil Palm: Applications in Selection of Interspecific Hybrids (1970)

THOMAS, R. L., NG, S. C., CHAN, K. W.

The main purpose of the investigation was to determine whether measures associated with or dependent on the differences in phyllotaxis organization of the stem, fronds, and inflorescences of three...

Phyllotaxis in the Oil Palm: Arrangement of Male/Female Florets along the Spikelets (1970)

THOMAS, R. L., NG, S. C., WONG, C. C.

The paper continues an earlier study of the geometry of inflorescence structures in the oil palm in which geometry is measured in terms of Equivalent Phyllotaxis Index (E.P.I.). In this case the...

Phyllotaxis in the Oil Palm: Arrangement of Male/Female Spikelets on the Inflorescence Stalk (1970)

THOMAS, R. L., CHAN, K. W., NG, S. C.

The geometry of spikelet arrangement along the massive male and female inflorescences of this monoecious palm is investigated through techniques of phyllotaxis measurement (Equivalent phyllotaxis...

Phyllotaxis in the Oil Palm: Application in the Evaluation of pisiferas (1970)

THOMAS, R. L., OOI, S. C., CHAN, K. W.

Yield differences between and within four segregating families of Oil Palm are shown to be highly correlated with differences in the phyllotaxis index, E.P.I., of the female inflorescences. This...

Observations on Sex Differentiation in the Oil Palm, Elaeis guineensis L. (1970)

WILLIAMS, C. N., THOMAS, R. L.

The morphology and frequency of occurrence of abnormal hermaphrodite inflorescences in the oil palm is described for palms of varying age. Hermaphrodite inflorescences are manifest during changes of...

Phyllotaxis in the Oil Palm: Arrangement of Fronds on the Trunk of Mature Palms (1969)

THOMAS, R. L., CHAN, K. W., EASAU, P. T.

Estimates of Equivalent Phyllotaxis Index—E.P.I.—are presented for palms of various ages, measuring the arrangement of fronds on the cylindrical trunk. It is contended that accurate E.P.I....

The Influence of Seed Weight on Seedling Vigour in Loliun Perenne (1966)

THOMAS, R. L.

The relationship between seed weight and a number of measurements of seedling vigour within six populations of Lolium Perenne, grown in two glasshouse environments, is investigated. In the initial...

A six year longitudinal study of the occupational consequences of drinking over "safe limits" of alcohol.

Jenkins, R, Harvey, S, Butler, T, Thomas, R L

Although much research has focused on the psychological, social, and economic consequences of heavy problem drinking, there has been far less attention paid to the consequences of "moderate"...