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Effect Of Drought On Morphophysiological Traits Of Rice: A Review

Author

Listed:
  • Utsav Bhandari

    (Institute of Agriculture and Animal Science, Lamjung, Nepal)

  • Aakriti Gajurel

    (Institute of Agriculture and Animal Science, Lamjung, Nepal)

  • Ishwor Thapa

    (Institute of Agriculture and Animal Science, Lamjung, Nepal)

  • Koshraj Pokhrel

    (Department of Genetics and Plant Breeding, IAAS, Nepal)

Abstract

Drought is the condition of prolonged paucity in the water supply, whether atmospheric, surface water, or groundwater. This significant abiotic stress is a severe limiting factor of plant growth and rice productivity, adversely affecting the economic rice production globally. Drought stress has a considerable effect on the rice plant’s morphological and physiological traits preventing it from reaching the maximum yield. Morphological alteration in rice includes inhibition of seed germination, reduced tillers, early maturity, reduced biomass while physiological changes involve restricted cell division and elongation, stomatal closure, loss of turgor adjustment, lower photosynthesis, slower growth rate, yield reduction, etc. The stress further brings about a biochemical change by accumulating stress metabolites, increasing Reactive Oxygen Species (ROS) accumulations, increasing antioxidative enzymes and, Abscisic acid (ABA) accumulation. Various mitigation measures are applied to adhere to the effect of drought on rice plants by selecting drought-tolerant cultivars, planting early varieties, sufficient moisture maintenance, conventional breeding, molecular maintenance, and development of varieties with high yielding attributes. Thus, this review aims to assess the complex responses of rice plants to drought in morpho-physiological characters of rice along with its mitigation strategies in adoption to drought stress.

Suggested Citation

  • Utsav Bhandari & Aakriti Gajurel & Ishwor Thapa & Koshraj Pokhrel, 2022. "Effect Of Drought On Morphophysiological Traits Of Rice: A Review," Tropical Agroecosystems (TAEC), Zibeline International Publishing, vol. 3(2), pages 57-62, July.
    • Handle: RePEc:zib:zbtaec:v:3:y:2022:i:2:p:57-62
    DOI: 10.26480/taec.02.2022.57.62
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    References listed on IDEAS

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    1. Jinmeng Zhang & Shiqiao Zhang & Min Cheng & Hong Jiang & Xiuying Zhang & Changhui Peng & Xuehe Lu & Minxia Zhang & Jiaxin Jin, 2018. "Effect of Drought on Agronomic Traits of Rice and Wheat: A Meta-Analysis," IJERPH, MDPI, vol. 15(5), pages 1-14, April.
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