Vol. 12, Issue 4 (2023)

Author(s):
Totewad Prashant Kumar, Bhadarge Hiraman, Jadhav Abhay, Ghuge Shyamrao, Thakur Niranjan and Naik Gajanan

Abstract:
The field experiment was conducted to study the “Morpho-physiological and biochemical studies for heat tolerance traits in wheat (Triticum aestivum L.) genotypes.” at the farm of Wheat and Maize Research Unit, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, during rabi season of 2020-21 and 2021-22. Total 16 genotypes collected from Wheat and Maize Research Unit, VNMKV, Parbhani was taken to conduct the experiment. The experiment was laid out in simple lattice design. The high temperature stress was induced by manipulation of sowing dates. Different morpho-physiological and biochemical traits viz., plant height, flag leaf area, tillers per meter row length, relative water content, membrane stability index, chlorophyll content, pollen viability and canopy temperature. The genotypes HD-3090, MACS-4058 and MP-1358 were shown to be extremely thermo tolerant based on HSI and grain yield, and they have tremendous economic value. The genotype HD-3090 was shown to be acceptable for both early and late sowing circumstances. These traits may be used in breeding programme for development of thermo tolerant genotypes for late condition under changing climatic scenario.