Identification of Heat Stress Tolerant Genotypes in Bread Wheat

  • Prakriti Khajuria School of Biotechnology Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu (SKUAST-Jammu) Main Campus Chatha Jammu-180009 INDIA
  • Anil Kumar Singh School of Biotechnology Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu (SKUAST-Jammu) Main Campus Chatha Jammu-180009 INDIA
  • Ravinder Singh School of Biotechnology Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu (SKUAST-Jammu) Main Campus Chatha Jammu-180009 INDIA http://orcid.org/0000-0002-1131-4406
Keywords: Wheat, heat stress, Heat susceptibility index, genotypes

Abstract

Heat stress affects a number of physiological and morphological traits in crops. The present study was undertaken to identify heat tolerant wheat genotypes based on their response for days to flowering and days to maturity. A set of 95 wheat genotypes was evaluated under normal and late sowing conditions. Data analysis revealed that location, sowing time and genotype has marked effect on days to flowering; and sowing time and genotype has significant effect on days to maturity. Based on the time taken by the genotypes to flower and mature under late sowing condition, six genotypes showing heat tolerance in at least two locations were found to be resistant. Heat susceptibility index value was used to identify a total of thirteen genotypes as tolerant to heat for both the traits. The genotypes identified as heat tolerant would form an important resource for the development of high-yielding varieties under heat stress.

Author Biographies

Prakriti Khajuria, School of Biotechnology Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu (SKUAST-Jammu) Main Campus Chatha Jammu-180009 INDIA

School of Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu,  Chatha, Jammu, J&K, India-180 009.

Anil Kumar Singh, School of Biotechnology Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu (SKUAST-Jammu) Main Campus Chatha Jammu-180009 INDIA

School of Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu,  Chatha, Jammu, J&K, India-180 009.

Ravinder Singh, School of Biotechnology Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu (SKUAST-Jammu) Main Campus Chatha Jammu-180009 INDIA

School of Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu,  Chatha, Jammu, J&K, India-180 009.

Published
13-06-2016
Section
Research Article