Archives

Indian Journal of Pure & Applied Biosciences (IJPAB)
Year : 2019, Volume : 7, Issue : 6
First page : (249) Last page : (258)
Article doi: : http://dx.doi.org/10.18782/2582-2845.7566

Coping Up With Heat Stress in Crops: A Review

Shabnam^1*, Rashpal Singh Sarlach² and Rohit Chhabra^1
1Department of Botany, Punjab Agricultural University, Ludhiana
²Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana
*Corresponding Author E-mail: shabnam-bot@pau.edu
Received: 15.06.2019  |  Revised: 28.07.2019   |  Accepted: 4.08.2019  

 ABSTRACT

High temperature can adversely affect the plant growth and development resulting in a severe threat to crop production. Although all the growth stages of plant are sensitive to high temperature, the reproductive phase is the most sensitive one as it affects both grain setting and grain filling. Heat stress can alter biochemical, physiological, and morpho-anatomical behavior in various crops which in turn affects its growth and development causing a reduction in pollen viability, duration of grain filling, and starch synthesis in the endosperm. At flowering, temperature above optimum results in seed sterility, while post-anthesis heat stress causes a reduction in starch synthesis and alters the grain composition. Cereal crops have evolved an appropriate mechanism such as escape, avoidance or to stay green to cope with heat stress. In addition, foliar sprays of antioxidants and osmoprotectants at anthesis/post anthesis stage may protect the plant against heat induced oxidative damage.

Keywords: Crop production, Development, Heat stress, Plant growth.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Shabnam, Sarlach, R.S., & Chhabra, R. (2019). Coping Up With Heat Stress in Crops: A Review, Ind. J. Pure App. Biosci. 7(6), 249-258. doi: http://dx.doi.org/10.18782/2582-2845.7566