Vol. 11, Issue 12 (2022)

Author(s):
Digvijay Kumar, Niranjana AS, Adhya Suresh, Kartik Dogra and Dr. Amandeep Kaur

Abstract:
For more than half a billion people in developing nations, especially in arid and semi-arid locations where drought stress is a significant limiting factor, sorghum is an economically significant and staple food crop. Despite being usually regarded as tolerant, sorghum nonetheless suffers severely from drought stress, which lowers its productivity and nutritional quality throughout its principal cultivation areas. Thus, for the crop to be more drought-tolerant, understanding both the effects of stress and plant response is essential. This review sought to deepen our knowledge of and offer new perspectives on sorghum's capacity for drought resistance as a contribution to the creation of cultivars that are more tolerant to changing climates and the impacts of drought on the growth and development of sorghum, including the osmotic potential that hinders the germination process and embryonic structures, photosynthetic rates, and imbalance in source-sink relations that affect seed filling and frequently show up as a significant decrease in grain yield and quality. The mechanisms of sorghum's response to drought-stress are discussed. The mechanisms involve morphological and physiological changes. Using contemporary plant breeding techniques, it seems conceivable to create regionally adapted sorghum cultivars that are drought tolerant and nutrient rich, according to the studies described in this article.