Influence of Different Sowing Dates and Nutrient Management on Dry Matter Accumulation and Correlation Study for Grain Yield of Wheat (Triticum aestivum. L.)

Abstract

A field experiment was carried out during the rabi season of 2020-21 in the Instructional farm of Barrister Thakur Chhedilal College of Agriculture and Research Station, Bilaspur, Chhattisgarh, to study the “Influenced of different sowing date and nutrient management on dry matter accumulation and Correlation and regression equations for grain yield of wheat (Triticum aestivum. L.)”. The experiment was laid out in split plot design with three replications with keeping four sowing dates viz., D1 (25th October), D2 (5th November), D3 (15th November) and D4 (25th November) as main plot and three fertilizer rates viz., NM1 (RFD), NM2 (150% RFD + FYM 15 t ha-1) and NM3 (150% RFD + FYM 15 t ha-1 + Growth regulators) as sub plot treatments. The crop sown on 5th November and NM3 (150% RFD + FYM 15 t ha-1 + Growth regulators) was significantly influenced by higher dry matter accumulation, CGR, RGR. Results revealed that, the maximum growth i.e. (higher dry matter accumulation, CGR and RGR), yield attributes (weight of grains per ear and test weight) and yield (grain yield) of wheat crop sown on 5th November as compared to other sowing dates. Among the fertilizer rates, maximum growth i.e. (dry matter accumulation, CGR and RGR), yield parameters (weight of grains ear-1 and test weight) were recorded the treatment NM3 (150% RFD + FYM 15 t ha-1 + Growth regulators), which was at par with NM2 (150% RFD + FYM 15 t ha-1). The data revealed that grain yield of wheat was significantly and positively correlated with biomass yield, test weight, number of grain ear-1 head, spike length, grain weight ear-1 head.