Evaluation of Wheat Genotypes (Triticum aestivum L.) against Heat Stress based on Their Biochemical and Physiological Responses
2014
Ramani, H R | Mandavia, M K | Khunt, A G | Golakiya, B A
The experiment was carried out using fourteen wheat genotypes differing in susceptibility to temperature stress and heat treatment was given to 10 days old wheat seedlings at 35°C, 40°C and 45°C for four hour in seed germinator. Relative water content and membrane stability was highest in tolerant genotype GW-190 and was the lowest in susceptible genotype J-2010-11. Membrane injuries, lipid peroxidation and hydrogen peroxide content were highest in susceptible genotype J-2010-11 and were the lowest in tolerant genotype GW-190. Chlorophyll stability index was highest in susceptible genotype LOK-1 and the lowest in tolerant genotype GW-190. In general as the temperature stress increased relative water content and membrane stability decreased and membrane injury, hydrogen peroxide and lipid peroxidation increased in all the genotypes compared to control plants.
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