Response of bread wheat (Triticum aestivum L.) genotypes to date of sowing and nutrient management for growth and yield under late sown irrigated condition

Abstract

Field experiment was conducted at Agricultural Research Station, Almel to study the effect of sowing date and nutrient management in bread wheat genotypes under late sown irrigated condition during Rabi 2014-15. Results revealed that, wheat genotype HD-3090 produced significantly higher grain yield (3628 kg ha-1) compared to the genotype NIAW-34 (2710). The higher yield was due to the significantly higher performance of yield and growth parameters viz., number of tillers at 30 and 60 DAS (74.5 and 90.7 m-1), number of productive tillers per m row length at both 60 DAS and at harvest (51.7 and 71.6, respectively) and dry matter accumulation at harvest recorded in per plant (6.83 g plant-1). The crop sown on December 15th recorded significantly higher grain yield (3260 kg ha-1) compared to December 30th sowing. The higher yield was due to the significantly higher performance of yield and growth parameters viz., number of tillers at 30 and 60 DAS (75.2 and 90.9 m-1), number of productive tillers per m row length at both 60 DAS and at harvest (47.4 and 68.4, respectively), Fertilizer level of 125:93.75:62.5 kg N, P2O5 and K2O ha-1 recorded significantly higher grain yield (3111 kg ha-1) compared to 125:93.75:62.5 kg N, P2O5 and K2O ha-1. Higher interaction effect of wheat genotype HD 3090 sown on December 15th at fertilizer level of 125:93.75:62.5 kg N, P2O5 and K2O ha-1 recorded significantly higher grain yield (3983 kg ha-1) with better performance yield and growth parameters.