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Gowda, Veeresh R.P.; Henry, Amelia; Yamauchi, Akira; Shashidhar, H.E.; Serraj, Rachid
Field crops research, 04/2011, Letnik: 122, Številka: 1Journal Article
► Rice root growth encompasses a remarkable range of genetic diversity. ► A detailed background of rice root growth at a range of scales is reviewed. ► Key root traits for drought response in rice are presented. ► Physiology and breeding perspectives for drought improvement in rice are considered. Rice root growth encompasses a remarkable genetic diversity in terms of growth patterns, architecture, and environmental adaptations. In order to harness this valuable diversity for improving rice response to drought, an understanding of key root traits and effective drought response mechanisms is necessary. A trait-based approach with precise understanding of the target environment, including temporal and spatial heterogeneity, is a possible path toward the use of roots and dehydration avoidance traits for improved drought resistance in rice. The ability to grow deep roots is currently the most accepted target trait for improving drought resistance, but genetic variation has been reported for a number of traits that may affect drought response. Here, we review variation in rice root response to drought from a physiological perspective in terms of morphology and function with respect to the different growth environments (upland and lowland) commonly used by farmers. Recent advances in linking physiology and breeding are also presented.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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