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Adequate zinc nutrition improves the tolerance against drought and heat stresses in chickpea

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Oct 2019Publisher:Elsevier BVJournal:Plant Physiology and Biochemistry, volume 143, pages 11-18 (issn: 0981-9428,

Authors: Abdul Rehman; Leila Romdhane; Aman Ullah; Muhammad Farooq; Muhammad Farooq; Muhammad Farooq;

doi: 10.1016/j.plaphy.2019.08.020

pmid: 31473401

Adequate zinc nutrition improves the tolerance against drought and heat stresses in chickpea

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Abstract

Two chickpea genotypes viz. Bhakar-2011 (desi) and Noor-2013 (kabuli) were sown in soil filled pots supplied with low (0.3 mg kg-1) and high (3 mg kg-1 soil) zinc (Zn) under control (70% water holding capacity and 25/20 °C day/night temperature), drought (35% water holding capacity) and heat (35/30 °C day/night temperature) stresses. Drought and heat stresses reduced rate of photosynthesis, photosystem II efficiency, plant growth and Zn uptake in chickpea. Low Zn supply exacerbated adverse effects of drought and heat stresses in chickpea, and caused reduction in plant biomass, carbon assimilation, antioxidant activity, impeded Zn uptake and enhanced oxidative damage. However, adequate Zn supply ameliorated adverse effect of drought and heat stresses in both chickpea types. The improvements were more in desi than kabuli type. Adequate Zn nutrition is crucial to augment growth of chickpea plants under high temperature and arid climatic conditions.

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Institut National Agronomique de Tunisie
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Keywords

Superoxide Dismutase, Cicer, Droughts, Plant Leaves, Zinc, Ascorbate Peroxidases, Biomass, Heat-Shock Response

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