Root biology and genetic improvement for drought avoidance in rice
Abstract
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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Finer roots may confer greater nutrient uptake per unit of root mass by increasing the root surface area and the soil area explored by the finer roots.
“The finer roots may confer greater nutrient uptake per unit of root mass by increasing the root surface area (and the soil area explored by the finer roots) (Gowda et al. 2011).”
From Green compost amendment improves potato plant performance on Mars regolith simulant as substrate for cultivation in space (2023) · cites this paper as Gowda et al. 2011
Cites
Steele, K. A., Price, A. H., Shashidhar, H. E., & Witcombe, J. R. (2006) · Theoretical and Applied Genetics · doi:10.1007/s00122-005-0110-4 · Cited by 370 · see citing works
Self-citationInheritance of Root Characters and their Relations to Drought Resistance in Rice<sup>1</sup>
Ekanayake, I. J., O'Toole, J. C., Garrity, D. P., & Masajo, T. M. (1985) · Crop Science · doi:10.2135/cropsci1985.0011183x002500060007x · Cited by 209 · cited 5× · see citing works
“However, heritability of root pulling force was relatively low (Ekanayake et al., 1985b) since many other soil factors in addition to root depth affect root pulling force.”
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Effect of drought stress on sugar metabolism in leaves and roots of soybean seedlings
Du, Y., Zhao, Q., Chen, L., Yao, X., Zhang, W., Zhang, B., & Xie, F. (2020) · Plant Physiology and Biochemistry · doi:10.1016/j.plaphy.2019.11.003 · Cited by 521 · see citing works
Caporale, A. G., Paradiso, R., Liuzzi, G., Palladino, M., Amitrano, C., Arena, C., Arouna, N., Verrillo, M., Cozzolino, V., De Pascale, S., et al. (2023) · Plant and Soil · doi:10.1007/s11104-022-05860-0 · Cited by 27 · see citing works
- Authors
- Gowda, V. R. P., Henry, A., Yamauchi, A., Shashidhar, H. E., & Serraj, R.
- Affiliations
- International Rice Research Institute (PH)
- Nagoya University (JP)
- University of Agricultural Sciences, Bangalore (IN)
- Corresponding author
- Henry, Amelia
- Venue
- Field Crops Research
- Publisher
- Elsevier BV
- Published
- 2011-04
- Volume
- 122
- Issue
- 1
- Pages
- 1-13
- ISSN
- 0378-4290 (ISSN-L)
- OpenAlex
- W2134672404
- Cited by
- 465
- References
- 2
- Citations by year
- 2026: 13 · 2025: 17 · 2024: 31 · 2023: 34 · 2022: 50 · 2021: 57 · 2020: 36 · 2019: 35 · 2018: 35 · 2017: 23 · 2016: 23 · 2015: 32 · 2014: 24 · 2013: 27 · 2012: 19
- FWCI
- 27.96
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Field Crops Research (publishedVersion)
- CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research) (submittedVersion)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Rice Cultivation and Yield Improvement
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant responses to water stress
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Genetics and Plant Breeding
- Keywords
- rice, drought avoidance, root biology, root traits, deep rooting, drought tolerance, genetic diversity, upland rice, lowland rice, root morphology, genetic improvement
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