Genomic-Assisted Enhancement in Stress Tolerance for Productivity Improvement in Sorghum

Romana, K K and Chander, G and Deshpande, S and Gupta, R (2018) Genomic-Assisted Enhancement in Stress Tolerance for Productivity Improvement in Sorghum. In: Biotechnologies of Crop Improvement : Genomic Approaches. Springer International Publishing, pp. 265-288. ISBN 978-3-319-94745-7

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Sorghum [Sorghum bicolor (L.) Moench], the fifth most important cereal crop in the world after wheat, rice, maize, and barley, is a multipurpose crop widely grown for food, feed, fodder, forage, and fuel, vital to the food security of many of the world’s poorest people living in fragile agroecological zones. Globally, sorghum is grown on ~42 million hectares area in ~100 countries of Africa, Asia, Oceania, and the Americas. Sorghum grain is used mostly as food (~55%), in the form of flat breads and porridges in Asia and Africa, and as feed (~33%) in the Americas. Stover of sorghum is an increasingly important source of dry season fodder for livestock, especially in South Asia. In India, area under sorghum cultivation has been drastically come down to less than one third in the last six decades but with a limited reduction in total production suggesting the high-yield potential of this crop. Sorghum productivity is far lower compared to its genetic potential owing to a limited exploitation of genetic and genomic resources developed in the recent past. Sorghum production is challenged by various abiotic and biotic stresses leading to a significant reduction in yield. Advances in modern genetics and genomics resources and tools could potentially help to further strengthen sorghum production by accelerating the rate of genetic gains and expediting the breeding cycle to develop cultivars with enhanced yield stability under stress. This chapter reviews the advances made in generating the genetic and genomics resources in sorghum and their interventions in improving the yield stability under abiotic and biotic stresses to improve the productivity of this climate-smart cereal.

Item Type: Book Section
Divisions: Research Program : Asia
Research Program : Genetic Gains
CRP: CGIAR Research Program on Grain Legumes and Dryland Cereals (GLDC)
Uncontrolled Keywords: Genomics, Markers, Molecular breeding, Nutrition, Sorghum, Stress tolerance, Heat stress, Shoot fly, Anthracnose, Genetics, Productivity improvement
Subjects: Others > Abiotic Stress
Others > Biotic Stress
Others > Crop Improvement
Mandate crops > Sorghum
Others > Genetics and Genomics
Others > Climate Change
Depositing User: Mr Ramesh K
Date Deposited: 27 Aug 2018 10:07
Last Modified: 27 Aug 2018 10:56
Acknowledgement: The authors greatly acknowledge the funding support from Newton fund (DBT-India and BBSRC, UK) for CINTRIN (Cambridge-India Network for Translational Research in Nitrogen) (#BT/IN/UK-VNC/42/RG/2015-16) to RG, KKR, and SD.
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