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Drought Stress Impacts On Wheat And Its Resistance Mechanisms

Author

Listed:
  • Bipin Rijal

    (Institute of Agriculture and Animal Science, Paklihawa, Rupandehi, Nepal)

  • Prakash Baduwal

    (Institute of Agriculture and Animal Science, Paklihawa, Rupandehi, Nepal)

  • Madhukar Chaudhary

    (Institute of Agriculture and Animal Science, Paklihawa, Rupandehi, Nepal)

  • Sandesh Chapagain

    (Institute of Agriculture and Animal Science, Paklihawa, Rupandehi, Nepal)

  • Sushank Khanal

    (Institute of Agriculture and Animal Science, Paklihawa, Rupandehi, Nepal.)

  • Saugat Khanal

    (Faculty of Agriculture, Agriculture and Forestry University, Rampur, Chitwan, Nepal.)

  • Padam Bahadur Poudel

    (Institute of Agriculture and Animal Science, Paklihawa, Rupandehi, Nepal)

Abstract

Scarcity of water has been a serious agricultural hindrance to crop productivity since antiquity. Droughtstressed loss in wheat yield likely exceeds losses from all other causes, since both the severity and duration of the stress are censorious. Here, we have reviewed the effects of drought stress on the morphological, physiological, and biochemical attributes along with the growth impacts, water relations, and photosynthesis impacts in wheat. This review also illustrates the mechanism of drought resistance in wheat. Historical drought years in Nepal have been identified and the yield losses were assessed. Wheat encounters a variety of morphological, physiological, biochemical responses at cellular and molecular levels towards prevailing water stress, thus making it a complex phenomenon. Drought stress affects leaf size, stems elongation and root proliferation, imbalance plant-water relations and decline water-use efficiency. Different types of physiological research are ongoing to find out the changes occurs in the wheat plant as a result of drought stress. Morphological changes can be looked through two ways: changes in root system and changes in shoot system such as effects on height, leaf senescence, flowering, and so on. Physiological changes involve changes in cell growth pattern, chlorophyll contents, photosynthetic disturbances, plant-water relations, etc. Biochemical changes occur in different chemical, biomolecules, and enzymes. Plants portray several mechanisms to withstand drought stress which can be classified as Drought escape, Drought avoidance, and Drought tolerance. Selection of wheat genotype that can tolerate water scarcity would be suitable for the breeding program aiming to development of drought tolerant variety under water limited regions.

Suggested Citation

  • Bipin Rijal & Prakash Baduwal & Madhukar Chaudhary & Sandesh Chapagain & Sushank Khanal & Saugat Khanal & Padam Bahadur Poudel, 2021. "Drought Stress Impacts On Wheat And Its Resistance Mechanisms," Malaysian Journal of Sustainable Agriculture (MJSA), Zibeline International Publishing, vol. 5(2), pages 67-76, January.
    • Handle: RePEc:zib:zbmjsa:v:5:y:2021:i:2:p:67-76
    DOI: 10.26480/mjsa.02.2021.67.76
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    References listed on IDEAS

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    1. Farooq, Muhammad & Hussain, Mubshar & Ul-Allah, Sami & Siddique, Kadambot H.M., 2019. "Physiological and agronomic approaches for improving water-use efficiency in crop plants," Agricultural Water Management, Elsevier, vol. 219(C), pages 95-108.
    2. Bing Liu & Senthold Asseng & Christoph Müller & Frank Ewert & Joshua Elliott & David B. Lobell & Pierre Martre & Alex C. Ruane & Daniel Wallach & James W. Jones & Cynthia Rosenzweig & Pramod K. Aggarw, 2016. "Similar estimates of temperature impacts on global wheat yield by three independent methods," Nature Climate Change, Nature, vol. 6(12), pages 1130-1136, December.
    3. Hafiz Ghulam Muhu-Din Ahmed & Muhammad Sajjad & Mingju Li & Muhammad Abubakkar Azmat & Muhammad Rizwan & Rana Haroon Maqsood & Sultan Habibullah Khan, 2019. "Selection Criteria for Drought-Tolerant Bread Wheat Genotypes at Seedling Stage," Sustainability, MDPI, vol. 11(9), pages 1-17, May.
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    Cited by:

    1. Sansar Sahani & Sandesh Shrestha & Tilak Ram Bhusal & Nabaraj dwadi & Rajesh Kumar Gupta & Prabin Sharma & Chetan Khanal & Mukti Ram Poudel, 2021. "Effect of Drought on Wheat in Nepal," Reviews in Food and Agriculture (RFNA), Zibeline International Publishing, vol. 2(2), pages 73-75, May.
    2. repec:zib:zbppsc:v:1:y:2021:i:1:p:4-7 is not listed on IDEAS

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