Journal ArticleOpen Access
Trait Combinations That Improve Rice Yield under Drought: Sahbhagi Dhan and New Drought‐Tolerant Varieties in South Asia
Authors
Author Affiliations
Indira Gandhi Agricultural University, International Rice Research Institute, Central Rice Research Institute, Acharya Narendra Deva University of Agriculture and Technology
Published InCrop Science
Year2015
Citations43
Abstract
ABSTRACT Drought is one of the most severe constraints reducing rice ( Oryza sativa L.) yield in rainfed environments. ‘Sahbhagi Dhan’ (IR74371‐70‐1‐1) is a drought‐tolerant rice variety that was released in India in 2010—and subsequently in Nepal as ‘Sukha Dhan 3’ and in Bangladesh as ‘BRRI Dhan 56’—and has performed well in rainfed farmers’ fields. This study was conducted to understand the physiological drought response characteristics of Sahbhagi Dhan that contribute to its increased yield under drought. Physiological characterization of Sahbhagi Dhan and other newer breeding lines was conducted across multiple seasons at one site in the Philippines and at four sites in India. Several distinct traits of Sahbhagi Dhan were observed: high emergence rates under direct‐seeded germination‐stage stress, a…
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