Effects of post-anthesis heat stress on stem reserves mobilization, canopy temperature depression and floret sterility of wheat cultivars

Authors

  • S Sikder Department of Crop Physiology and Ecology, Hajee Mohammad Danesh Science & Technology University, Dinajpur
  • NK Paul 1Department of Botany, University of Rajshahi, Rajshahi

DOI:

https://doi.org/10.3329/bjb.v39i1.5526

Keywords:

Post-anthesis, Heat stress, Floret sterility, Canopy temperature, Mobilization

Abstract

Testing of four heat tolerant (Gourab, Sourav, Kanchan and Shatabdi) and two heat sensitive (Sonora and Kalyansona) wheat cultivars under normal and late growing post-anthesis heat stress conditions revealed higher pre-anthesis stem reserves mobilization to the final grain weight and floret sterility in heat sensitive cultivars compared to heat tolerant cultivars. The heat tolerant cultivars showed higher canopy temperature depression than the heat sensitive cultivars in both the growing conditions indicating the higher ability of heat tolerant cultivars to maintain cooler canopy environment than the heat sensitive ones.

Key words: Post-anthesis; Heat stress; Floret sterility; Canopy temperature; Mobilization

DOI: 10.3329/bjb.v39i1.5526

Bangladesh J. Bot. 39(1): 51-55, 2010 (June)

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Published

2010-07-16

How to Cite

Sikder, S., & Paul, N. (2010). Effects of post-anthesis heat stress on stem reserves mobilization, canopy temperature depression and floret sterility of wheat cultivars. Bangladesh Journal of Botany, 39(1), 51–55. https://doi.org/10.3329/bjb.v39i1.5526

Issue

Vol. 39 No. 1 (2010)

Section

Articles

License

© Bangladesh Botanical Society

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