Evaluation of Heat Tolerance of Wheat Genotypes Through Membrane Thermostability Test

Pronay Bala, Sripati Sikder

Abstract


This study was conducted at Crop Physiology and Ecology Laboratory of Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh to identify heat tolerance of wheat genotypes and to categories them based on their membrane thermostability in response to heat stress. In this respect eight wheat genotypes viz., Pavon-76, Prodip, BARI Gom-25, BARI Gom-26, BAW-1143, BAW-1146, BAW-1147 and BAW-1148 were used as study materials. The experiment was carried out in completely randomized design with three replications. The experiment was conducted during November 2011. Heat tolerance of eight wheat genotypes was evaluated through membrane thermo stability (MTS) test. Based on membrane  thermo stability (MTS) value, genotypes BAW-1143, BARI Gom-25, BARI Gom-26 and Prodip were considered as heat tolerant (HT) due to higher (>55%) MTS values, whereas genotypes BAW-1146, BAW-1147 and BAW-1148 were designated as moderately heat tolerant (MHT) for their medium membrane thermo stability (> 50%) and genotype Pavon-76 was considered as heat sensitive (HS) due to its poor MTS value (< 45%).


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MAYFEB Journal of Agricultural Science
Toronto, Ontario, Canada
MAYFEB TECHNOLOGY DEVELOPMENT
ISSN 2371-512X