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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 4
First page : (221) Last page : (237)
Article doi: http://dx.doi.org/10.18782/2320-7051.2845

Mechanisms of Drought Tolerance in Sorghum: A Review

Krupa, K. N.*, Ningaraj Dalawai, Shashidhar, H. E., Harinikumar, K. M., Manojkumar, H. B., Subhash Bharani  and Vinayak Turaidar
Department of Plant Biotechnology, UAS, GKVK, Bengaluru
*Corresponding Author E-mail: krupapoo@gmail.com
Received: 13.04.2017  |  Revised: 25.04.2017   |  Accepted: 27.04.2017  


Sorghum is the fifth most important cereal crop and occupies the second position among the staple food grains in semi-arid tropics. The adaptation of grain sorghum to a wide range of environmental conditions has led to the evolution and existence of extensive genetic variation for drought tolerance. Accordingly, sorghum is expected to play an increasingly important role in agriculture and meeting world food demand in the face of climate change, land degradation and increasing water scarcity. The crop requires relatively less water than other important cereals such as maize and wheat. However, yield potential of the crop is significantly limited due to drought and heat stresses. Drought is one of the most important factors that affect crop production worldwide and continues to be a challenge to plant breeders, despite many decades of research. Underestimating the different mechanisms underlying drought tolerance is vital for the breeding to alleviate adverse effects of drought in order to boost productivity. In this literature review, the main effects of drought on crop growth and development, and yield are reported.

Key words: Drought, Sorghum, Physiological mechanisms, Drought tolerance, Breeding.

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

Cite this article: Krupa, K.N., Dalawai, N., Shashidhar, H.E., Harinikumar, K.M., Manojkumar, H.B., Bharani, S. and Turaidar, V., Mechanisms of Drought Tolerance in Sorghum: A Review, Int. J. Pure App. Biosci.5(4): 221-237 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2845