Vol. 9, Issue 2, Part G (2025)

This study was performed to explore heat stress tolerance indices to judge terminal heat tolerance genotypes from nine wheat genotypes viz: AKAW 5023, AKAW 4927, PBN 4905, PBN 4751-02, NIAW 3523, NIAW 2891, AKAW 4210-6 (C), NIAW 34 (C), NIAW 1994 (C) at Wheat Research Unit, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (MH) during Rabi 2016-17 and 2017-2018. The trial was setup in RBD design with three replications. Yield and Nutritional traits were recorded and correlated with yield. Genotype NIAW 2891 noted significantly high reducing sugar (4.35%), non-reducing sugar (1.87%) in seed, exhibited more protein content (8.66%), zinc content (46.54 mg kg^-1), iron content (57.42 mg kg^-1*), manganese content (18.98 mg kg^-1) and copper content( 3.92 mg kg^-1 ) in seed and more grain yield ha^-1 (35.65 q/ha) followed by genotype NIAW 3523 (33.83 q/ha) during both the year and noted as heat tolerance genotypes against the best check AKAW 4210-6. Correlation analysis showed that yield under stress environment had positive significant correlate with reducing sugar content (0.687**), non reducing sugar content (0.634*), protein content (0.634*), zinc content (0.722**), iron content (0.827**), copper content (0.632*) and manganese content (0.768**) in seed. Hence, due emphasis should be given to these attributes for genetic improvement in wheat under heat stress condition.