Response of wheat varieties to heat stress under elevated temperature environments


  • HAR VIR SINGH ICAR-Directorate of Rapeseed and Mustard Research, Sewar, Bharatpur, Rajasthan-321 303
  • S. NARESH KUMAR Centre for Environment Science and Climate Resilient Agriculture, ICAR-IARI, New Delhi – 110 012
  • NALEENI RAMAWAT Amity Institute of Organic Agriculture, Amity University, NOIDA, Uttar Pradesh -201 308
  • R. C. HARIT Centre for Environment and Climate Resilient Agriculture, Indian Agricultural Research Institute, New Delhi-110012



Wheat,, heat stress, leaf area index, photosynthesis, yield


A field experiment was conducted during winter (rabi) season of 2014-15 at IARI, New Delhi to evaluate the response of wheat varieties to heat stress. Three wheat varieties (HD 2967, WR 544 and HD 2985) were grown under ambient and elevated temperature (1.9 to 3.4 oC more than ambient during crop season) condition. Results indicated that the variety WR 544 is highly resistant to heat stress as it exhibited stability of leaf area index (LAI), photosynthesis (Pn), grain yield, harvest index (HI) and test weight under elevated temperature. However, HD 2967 recorded more yield but WR 544 performs better in elevated temperature conditions.




How to Cite

HAR VIR SINGH, S. NARESH KUMAR, NALEENI RAMAWAT, & R. C. HARIT. (2017). Response of wheat varieties to heat stress under elevated temperature environments. Journal of Agrometeorology, 19(1), 17–22.



Research Paper

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