Effects of salicylic acid, zinc and glycine betaine on morpho-physiological growth and yield of maize under drought stress

Abstract Drought is one of the major environmental stresses that negatively affect the maize (Zea mays L.) growth and production throughout the world. Foliar applications of plant growth regulators, micronutrients or osmoprotectants for stimulating drought-tolerance in plants have been intensively r...

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Autores principales:	Ramadan Shemi, Rui Wang, El-Sayed M. S. Gheith, Hafiz Athar Hussain, Saddam Hussain, Muhammad Irfan, Linna Cholidah, Kangping Zhang, Sai Zhang, Longchang Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9fda1ab7b9ab4f6f86c32057a4bc8e78
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spelling	oai:doaj.org-article:9fda1ab7b9ab4f6f86c32057a4bc8e782021-12-02T14:06:11ZEffects of salicylic acid, zinc and glycine betaine on morpho-physiological growth and yield of maize under drought stress10.1038/s41598-021-82264-72045-2322https://doaj.org/article/9fda1ab7b9ab4f6f86c32057a4bc8e782021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82264-7https://doaj.org/toc/2045-2322Abstract Drought is one of the major environmental stresses that negatively affect the maize (Zea mays L.) growth and production throughout the world. Foliar applications of plant growth regulators, micronutrients or osmoprotectants for stimulating drought-tolerance in plants have been intensively reported. A controlled pot experiment was conducted to study the relative efficacy of salicylic acid (SA), zinc (Zn), and glycine betaine (GB) foliar applications on morphology, chlorophyll contents, relative water content (RWC), gas-exchange attributes, activities of antioxidant enzymes, accumulations of reactive oxygen species (ROS) and osmolytes, and yield attributes of maize plants exposed to two soil water conditions (85% field capacity: well-watered, 50% field capacity: drought stress) during critical growth stages. Drought stress significantly reduced the morphological parameters, yield and its components, RWC, chlorophyll contents, and gas-exchange parameters except for intercellular CO2 concentration, compared with well water conditions. However, the foliar applications considerably enhanced all the above parameters under drought. Drought stress significantly (p < 0.05) increased the hydrogen peroxide and superoxide anion contents, and enhanced the lipid peroxidation rate measured in terms of malonaldehyde (MDA) content. However, ROS and MDA contents were substantially decreased by foliar applications under drought stress. Antioxidant enzymes activity, proline content, and the soluble sugar were increased by foliar treatments under both well-watered and drought-stressed conditions. Overall, the application of GB was the most effective among all compounds to enhance the drought tolerance in maize through reduced levels of ROS, increased activities of antioxidant enzymes and higher accumulation of osmolytes contents.Ramadan ShemiRui WangEl-Sayed M. S. GheithHafiz Athar HussainSaddam HussainMuhammad IrfanLinna CholidahKangping ZhangSai ZhangLongchang WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ramadan Shemi Rui Wang El-Sayed M. S. Gheith Hafiz Athar Hussain Saddam Hussain Muhammad Irfan Linna Cholidah Kangping Zhang Sai Zhang Longchang Wang Effects of salicylic acid, zinc and glycine betaine on morpho-physiological growth and yield of maize under drought stress
description	Abstract Drought is one of the major environmental stresses that negatively affect the maize (Zea mays L.) growth and production throughout the world. Foliar applications of plant growth regulators, micronutrients or osmoprotectants for stimulating drought-tolerance in plants have been intensively reported. A controlled pot experiment was conducted to study the relative efficacy of salicylic acid (SA), zinc (Zn), and glycine betaine (GB) foliar applications on morphology, chlorophyll contents, relative water content (RWC), gas-exchange attributes, activities of antioxidant enzymes, accumulations of reactive oxygen species (ROS) and osmolytes, and yield attributes of maize plants exposed to two soil water conditions (85% field capacity: well-watered, 50% field capacity: drought stress) during critical growth stages. Drought stress significantly reduced the morphological parameters, yield and its components, RWC, chlorophyll contents, and gas-exchange parameters except for intercellular CO2 concentration, compared with well water conditions. However, the foliar applications considerably enhanced all the above parameters under drought. Drought stress significantly (p < 0.05) increased the hydrogen peroxide and superoxide anion contents, and enhanced the lipid peroxidation rate measured in terms of malonaldehyde (MDA) content. However, ROS and MDA contents were substantially decreased by foliar applications under drought stress. Antioxidant enzymes activity, proline content, and the soluble sugar were increased by foliar treatments under both well-watered and drought-stressed conditions. Overall, the application of GB was the most effective among all compounds to enhance the drought tolerance in maize through reduced levels of ROS, increased activities of antioxidant enzymes and higher accumulation of osmolytes contents.
format	article
author	Ramadan Shemi Rui Wang El-Sayed M. S. Gheith Hafiz Athar Hussain Saddam Hussain Muhammad Irfan Linna Cholidah Kangping Zhang Sai Zhang Longchang Wang
author_facet	Ramadan Shemi Rui Wang El-Sayed M. S. Gheith Hafiz Athar Hussain Saddam Hussain Muhammad Irfan Linna Cholidah Kangping Zhang Sai Zhang Longchang Wang
author_sort	Ramadan Shemi
title	Effects of salicylic acid, zinc and glycine betaine on morpho-physiological growth and yield of maize under drought stress
title_short	Effects of salicylic acid, zinc and glycine betaine on morpho-physiological growth and yield of maize under drought stress
title_full	Effects of salicylic acid, zinc and glycine betaine on morpho-physiological growth and yield of maize under drought stress
title_fullStr	Effects of salicylic acid, zinc and glycine betaine on morpho-physiological growth and yield of maize under drought stress
title_full_unstemmed	Effects of salicylic acid, zinc and glycine betaine on morpho-physiological growth and yield of maize under drought stress
title_sort	effects of salicylic acid, zinc and glycine betaine on morpho-physiological growth and yield of maize under drought stress
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/9fda1ab7b9ab4f6f86c32057a4bc8e78
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Effects of salicylic acid, zinc and glycine betaine on morpho-physiological growth and yield of maize under drought stress

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