| Effect of Eyes Number in Cut Seed Tuber and Different Levels of Nitrogen on Growth, Yield and Grading of Tuber Size in Potato ( Solanum tuberosum L.) (2001) | |||||
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Abstract | |||||
| Effect of different eyes number viz., E1, E2 and E3 per cut seed tuber and five levels of nitrogen viz., N0, N60, N120, N180 and N240 and their all possible combinations on the growth, yield and tuber size grading of potato (cv. Diamant) was studied at the Bangladesh Agricultural University during 1997 and 1998 cropping season. Canopy coverage, main stem number hill-1, tuber number hill-1 significantly increased with the increasing number of eyes in cut seed tuber piece. Cut seed tuber piece with 3 eyes required the shortest period to shoot emergence, but produced the smallest tubers. Three eyed cut seed tuber produced the maximum tuber yield, 31.7 t ha-1, which was statistically similar to 2-eyed seed piece (31.4 t ha-1). Higher nitrogen significantly increased all the parameters studied and took less number of days to shoot emergence and tuber maturity. 240 KgN ha-1 produced the maximum tuber yield (35.2 t ha-1), but the performance of N180 and N240 showed non-significant variation. Grade A (>55 mm) and B (55-40 mm) sized tubers increased, but grade C (40-28 mm) and D ( | |||||
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