Vol. 6, Issue 4 (2018)
Impact of elevated night temperature stress on phenological and physiological parameters in wheat (Triticum aestivum L.)
Author(s): Md. Afjal Ahmad and Pravin Prakash
Abstract: An experiment was conducted in the laboratory of the Department of Plant Physiology for two consecutive years to analyze the effect of elevated night temperature stress in wheat crop with respect to certain phenological and physiological parameters in wheat taking two genotypes viz. HUW-234 (relatively heat tolerant) and Sonalika (relatively heat susceptible). Significant differences were observed with respect to phenological parameters where days to 50% Earhead emergence, days to 50% anthesis and days to maturity was found to decrease in the plants kept under stressed condition (25 0C/ 24 0C day and night) than those kept under control (25 0C/15 0C day and night). Similar results were obtained with regard to physiological parameters such as dry weight at maturity, grain growth rate, grain filling duration and chlorophyll stability index. Overall the variety HUW-234 was statistically found to be more tolerant to night temperature stress than the variety Sonalika as evident from more percent reduction in Sonalika than those observed in HUW-234 due to high night temperature stress.
Pages: 798-800 | 489 Views 48 Downloads
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How to cite this article:
Md. Afjal Ahmad, Pravin Prakash. Impact of elevated night temperature stress on phenological and physiological parameters in wheat (Triticum aestivum L.). Int J Chem Stud 2018;6(4):798-800.
