Performance of different wheat genotypes as influenced by dates of planting

Abstract

A field experiment was conducted during rabi seasons of 2013-14 and 2014-15 for two consecutive years at Birsa Agricultural University, Ranchi, to study the performance of wheat varieties under different sowing dates. The experiment was conducted in split plot design with 3 replication with treatments comprising two dates of sowing viz. 15th December and 1st January in main plots and 8 different wheat cultivar viz. HD 2985, HI 1563, DBW 14, K1114, HD 3118, HD 2733, DBW 107 and NW 2036) in sub-plots. Sowing on 15th December significantly influenced different development stages, gap fraction and yielded more than 1st January. Sowing of 15th December significantly more development stages, gap fraction resulting in 20.89 % higher grain yield (33.51q/ha), straw yield (52.57 q/ha), net return (Rs. 34642/ha) and B: C ratio (1.21). Among the cultivars, HD 2733 gave significantly more development stages, heat unit requirements, chlorophyll content, min tilt angle, gap fraction grain yield (35.83 q/ha), straw yield (52.51 q/ha), net return (Rs. 37205/ha) and B: C ratio (1.34) than that of mean of the rest of the seven cultivars.