Establishment and tillage practices affects crop performance, soil properties, energy generation and economics under rice-wheat cropping system in Central Himalayan tarai region

This experiment was carried out to determine the response of different heat tolerence varieties of wheat (Triticum aestivum L.) on physiological characterstics, yield and its attributes under timely and late sown condition. The experiment was conducted at Nawabganj Research Farm of Chandra Shekhar Azad University of Agriculture and Technology, Kanpur (U.P.) during Rabi season in year 2017-18, in randomized block design with two replications and twelve treatments. The result shows that the observation was taken at two different stages of growth which shows that the canopy temperature of late sown crops was higher than the timely sown crops. Under timely sown condition PBW762 shows minimum canopy temperature under both the stages and under late sown condition shows minimum canopy temperature in first stage but in second stage DBW223 shows minimum canopy temperature. Under timely sown PBW762 and WH1218 shows maximum chlorophyll content in first stage but in second stage PBW762, and DBW150 shows maximum chlorophyll content. Under late sown condition DBW222 shows maximum chlorophyll content in both stages. Under timely sown condition some varieties like DBW14, RW5 and RAJ3765 shows maxi. C.F.L. Under late sown condition some varieties like DBW223 and DBW14 shows maxi. C.F.L. DBW222 given maxi. Grain weight/plot and biomass production in both the conditions. DBW223 given maxi. Harvest index in timely sown and PBW762 given maxi. Under late sown condition. DBW233 given highest test weight and grain weight/spike under timely sown WH1218 given highest test weight and grain weight/spike under late sown condition.WH730 given highest number of grain/spike in both the conditions. Among all the twelve varieties DBW222 can be given best superior result under both timely and late sown conditions in a field.