Physiological Responses of Wheat Associate with Heat Tolerance

This study was performed to explore heat stress tolerance indices judge terminal genotypes from nine wheat viz: AKAW 5023, 4927, PBN 4905, 4751-02, NIAW 3523, 2891, 4210-6 (C), 34 1994 (C) at Wheat Research Unit, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (MH) during Rabi 2016-17 and 2017-2018. The trial setup in RBD design with three replications. Yield Physiological traits were recorded correlated yield. Genotype 2891 noted significantly high germination %,CTD (4.30oC), minimum membrane thermo-stability index (48.86%) 75 DAS (grain filling stage), exhibited more RGR (0.0074 g g-1 day-1), NAR (0.0500 dm2 early 50% flowering (58.16 days), days maturity (91.83 days) grain yield ha-1 (35.65 q/ha) followed by genotype 3523 (33.83 both the year as against best check 4210-6. Correlation analysis showed that under environment had positive significant correlate 50 % physiological however, canopy temperature negative correlation Hence, due emphasis should be given these attributes for genetic improvement condition.