Cell Membrane Stability as a Measure of Heat Tolerance in Hexaploid and Tetraploid Wheat
Syed Bilal Hussain *
Institute of Molecular Biology and Biotechnology, Bahauddin Zakariya University, Multan, Pakistan.
Ali Bakhsh
Department of Plant Breeding and Genetics, Ghazi University, Dera Ghazi Khan, Pakistan.
Muhammad Zubair
Department of Forestry and Range Management, FAS&T, Bahauddin Zakariya University, Multan, Pakistan.
*Author to whom correspondence should be addressed.
Abstract
A comparison was made of the physiological and morphological differences between Inqlab-91 (hexaploid) and Langdon (tetralpoid) wheat genotypes in response to high temperature stress applied at third leaf stage of growth. Electrolytes leakage technique was used to detect differences in the heat sensitivities of leaves of Inqlab-91 and Langdon. This method showed that at both 35 or 40°C Inqlab-91 was more heat tolerant than Langdon.
Keywords: Electrolye leakage, heat, wheat