Elucidating the Drought Responsiveness in Wheat Genotypes

Ankita Pandey, Rinki Khobra, Harohalli Masthigowda Mamrutha, Zeenat Wadhwa, Gopalareddy Krishnappa, Gyanendra Singh and Gyanendra Pratap Singh
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Ankita Pandey: ICAR-Indian Institute of Wheat and Barley Research (IIWBR), Karnal 132001, India
Rinki Khobra: ICAR-Indian Institute of Wheat and Barley Research (IIWBR), Karnal 132001, India
Harohalli Masthigowda Mamrutha: ICAR-Indian Institute of Wheat and Barley Research (IIWBR), Karnal 132001, India
Zeenat Wadhwa: ICAR-Indian Institute of Wheat and Barley Research (IIWBR), Karnal 132001, India
Gopalareddy Krishnappa: ICAR-Indian Institute of Wheat and Barley Research (IIWBR), Karnal 132001, India
Gyanendra Singh: ICAR-Indian Institute of Wheat and Barley Research (IIWBR), Karnal 132001, India
Gyanendra Pratap Singh: ICAR-Indian Institute of Wheat and Barley Research (IIWBR), Karnal 132001, India

Sustainability, 2022, vol. 14, issue 7, 1-20

Abstract: Drought is one of the major abiotic constraints on wheat yields and also for sustainability of production levels around the world. In the near future, the occurrence likelihood of droughts is predicted to become more common, due to changing climatic conditions, thereby posing a serious threat to the food security system. Heterogeneity, in its time of occurrence and severity levels, is likely to further augment the complexity of drought conditions. Although wheat crop growth has progressively risen to good levels, as evident by notable increases in both area and production, the expected wheat demand for the ever-growing population is quite high. Besides crop yield volatility in the era of climate change and dwindling resources, “trait-based” breeding programs are required, so as to develop high yielding, climate resilient and stable genotypes, at a faster pace. For this to happen, a broad genetic base and wider adaptability to suit varied agro-ecologies would provide enough scope for their quicker spread. The current review places emphasis on making distinct categories of the wheat cultivars/advanced breeding lines, as tolerant, moderately tolerant or susceptible to drought stresses, duly supported by an extensive up-to-date literature base and will be useful for wheat researchers, in order to choose the best potential donors as parents, coupled with the associated traits for the development of drought-tolerant wheat varieties, and also to facilitate molecular studies.

Keywords: wheat improvement; drought; trait-based breeding; physiological traits; biochemical traits; molecular traits (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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