Behaviour of different wheat genotypes under various irrigation conditions under eastern region of Jharkhand

Abstract

Field experiments were conducted on sandy loam soil at Birsa Agricultural University, Ranchi, India in winter seasons of 2009-10 and 2010-11. The experiment was conducted in split plot design with 3 replication with treatments comprised three irrigation conditions viz. IR1: One irrigation at CRI (20-25 DAS), IR2: Three irrigations at CRI, Tillering (45-50 DAS) and Boot leaf stage (80-85 DAS) and IR3: Five irrigations at CRI, Tillering, Jointing (65-70 DAS), Boot leaf and milk stages (100-105 DAS) in main plots and eight wheat genotypes viz., HD-2997, DBW-46, RSP-561, HD-2733(C), PBW-343 (C), K-0307 (C), HD-2967 (I) and DBW-39 (I) in sub plots. The result revealed that, IR3 produced significantly influenced most yield attributes and yield than other irrigation levels. Increase in irrigation level resulted in significantly more effective tillers (336/m2), higher spike length (12.7 cm), fertile spikelets/ spike (46.27), number of grains/spike (41.42), 1000-grain weight (41.31g), resulting in 20.89 % higher grain yield (37.97q/ha) and straw yield (55.04 q/ha. Among the cultivars, PBW-343 (C) gave significantly more effective tillers (317/m2), spike length (14.4 cm), fertile spikelets/spike (43.52), number of grains/spike (35.33), 1000-grain weight (40.90 g), grain yield (31.83 q/ha) and straw yield (45.69 q/ha) than that of mean of the rest of the seven cultivars.