DROUGHT STRESS IMPACTS ON WHEAT AND ITS RESISTANCE MECHANISMS

Scarcity of water has been a serious agricultural hindrance to crop productivity since antiquity. Drought-stressed 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...

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Autores principales:	Bipin Rijal, Prakash Baduwal, Madhukar Chaudhary, Sandesh Chapagain, Sushank Khanal, Saugat Khanal, Padam Bahadur Poudel
Formato:	article
Lenguaje:	EN
Publicado:	Zibeline International 2021
Materias:	agronomic changes drought nepal resistance wheat Agriculture (General) S1-972
Acceso en línea:	https://doaj.org/article/9d19bd4c2d854eeaa6555d4833b7c707
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spelling	oai:doaj.org-article:9d19bd4c2d854eeaa6555d4833b7c7072021-11-24T04:54:09ZDROUGHT STRESS IMPACTS ON WHEAT AND ITS RESISTANCE MECHANISMS10.26480/mjsa.02.2021.67.762521-29312521-294Xhttps://doaj.org/article/9d19bd4c2d854eeaa6555d4833b7c7072021-01-01T00:00:00Zhttps://myjsustainagri.com/archives/2mjsa2021/2mjsa2021-67-76.pdfhttps://doaj.org/toc/2521-2931https://doaj.org/toc/2521-294XScarcity of water has been a serious agricultural hindrance to crop productivity since antiquity. Drought-stressed 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.Bipin RijalPrakash BaduwalMadhukar ChaudharySandesh ChapagainSushank KhanalSaugat KhanalPadam Bahadur PoudelZibeline Internationalarticleagronomic changesdroughtnepalresistancewheatAgriculture (General)S1-972ENMalaysian Journal of Sustainable Agriculture, Vol 5, Iss 2, Pp 67-76 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	agronomic changes drought nepal resistance wheat Agriculture (General) S1-972
spellingShingle	agronomic changes drought nepal resistance wheat Agriculture (General) S1-972 Bipin Rijal Prakash Baduwal Madhukar Chaudhary Sandesh Chapagain Sushank Khanal Saugat Khanal Padam Bahadur Poudel DROUGHT STRESS IMPACTS ON WHEAT AND ITS RESISTANCE MECHANISMS
description	Scarcity of water has been a serious agricultural hindrance to crop productivity since antiquity. Drought-stressed 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.
format	article
author	Bipin Rijal Prakash Baduwal Madhukar Chaudhary Sandesh Chapagain Sushank Khanal Saugat Khanal Padam Bahadur Poudel
author_facet	Bipin Rijal Prakash Baduwal Madhukar Chaudhary Sandesh Chapagain Sushank Khanal Saugat Khanal Padam Bahadur Poudel
author_sort	Bipin Rijal
title	DROUGHT STRESS IMPACTS ON WHEAT AND ITS RESISTANCE MECHANISMS
title_short	DROUGHT STRESS IMPACTS ON WHEAT AND ITS RESISTANCE MECHANISMS
title_full	DROUGHT STRESS IMPACTS ON WHEAT AND ITS RESISTANCE MECHANISMS
title_fullStr	DROUGHT STRESS IMPACTS ON WHEAT AND ITS RESISTANCE MECHANISMS
title_full_unstemmed	DROUGHT STRESS IMPACTS ON WHEAT AND ITS RESISTANCE MECHANISMS
title_sort	drought stress impacts on wheat and its resistance mechanisms
publisher	Zibeline International
publishDate	2021
url	https://doaj.org/article/9d19bd4c2d854eeaa6555d4833b7c707
work_keys_str_mv	AT bipinrijal droughtstressimpactsonwheatanditsresistancemechanisms AT prakashbaduwal droughtstressimpactsonwheatanditsresistancemechanisms AT madhukarchaudhary droughtstressimpactsonwheatanditsresistancemechanisms AT sandeshchapagain droughtstressimpactsonwheatanditsresistancemechanisms AT sushankkhanal droughtstressimpactsonwheatanditsresistancemechanisms AT saugatkhanal droughtstressimpactsonwheatanditsresistancemechanisms AT padambahadurpoudel droughtstressimpactsonwheatanditsresistancemechanisms
_version_	1718415928895471616

DROUGHT STRESS IMPACTS ON WHEAT AND ITS RESISTANCE MECHANISMS

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