干旱区生态环境知识资源中心(Arid): Exogenous Potassium Treatments Elevate Salt Tolerance and Performances of Glycine max L. by Boosting Antioxidant Defense System under Actual Saline Field Conditions

Arid

DOI	10.3390/agronomy10111741
	Exogenous Potassium Treatments Elevate Salt Tolerance and Performances of Glycine max L. by Boosting Antioxidant Defense System under Actual Saline Field Conditions
	S. Taha, Ragab; Seleiman, Mahmoud F.; Alotaibi, Majed; Alhammad, Bushra Ahmed; Rady, Mostafa M.; H. A. Mahdi, Ayman
通讯作者	Seleiman, MF
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2020
卷号	10 期号:11
英文摘要	Salinity is one of the major issues that limits field crop productivity in an arid and semiarid environment. Therefore, two field trials were carried out over two seasons of 2018 and 2019 to investigate the enhancement of different methods of potassium application (i.e., recommended soil amendment (control; K2O), seed soaking (SS) and foliar spray (FS) in the form of potassium sulfate (K2SO4, 6 mM)) on antioxidant protection, physio-biochemical, yield and quality traits of soybean (cv. Giza 22) grown in normal (electrical conductivity; EC = 2.68 dS m(-1)) and saline soil (EC = 7.46 dS m(-1)). Physio-biochemical attributes (total chlorophyll, carotenoids, K+ and K+/Na+ ratios, performance index and catalase (CAT) activity), growth traits (i.e., shoot length, number and area of leaves plant(-1) and shoot dry weight), yield and its components and seed quality (number of pods plant(-1), 100-seed weight, seed yield ha(-1) and seed protein and oil contents) were significantly decreased when soybean plants were grown in saline soil compared with those grown in normal soil. In contrast, activity of enzymatic antioxidants (i.e., superoxide dismutase (SOD), ascorbate peroxidase (APX) and glutathione peroxidase (GPX)), contents of non-enzymatic antioxidants and osmoprotectants (i.e., total soluble sugars, free proline, ascorbic acid and alpha-tocopherol), Na+, Cl-, H2O2 and malondialdehyde (MDA) were increased in soybean plants grown in saline soil compared with normal soil. However, under salt-stressed conditions, potassium applied through SS or FS significantly enhanced all soybean growth, photosynthetic efficiency, K+ content, ratio of K+/Na+ and activity of CAT, SOD, APX and GPX as well as improved yield and quality traits, while potassium application did not affect the contents of non-enzymatic antioxidants and osmoprotectants. For instance, foliar potassium application (FS) increased seed yield ha(-1) by 92.31% and protein content by 63.19% compared with the control under the salt stress condition. In addition, both applications of potassium significantly reduced Na+, Cl-, H2O2 and MDA contents in soybean plants compared with those obtained from control treatments. Exogenous application of K2SO4 was more effective than SS at improving soybean physio-biochemical attributes, yield and seed quality traits under soil-salinity stress.
英文关键词	soybean salt stress performance physio-biochemical attributes potassium quality
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000592902900001
WOS关键词	STRESS-INDUCED CHANGES ; HYDROGEN-PEROXIDE ; PLANTS ; WHEAT ; SOIL ; PROLINE ; MAIZE ; ACID ; METHYLGLYOXAL ; ACCUMULATION
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
来源机构	King Saud University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327668
作者单位	[S. Taha, Ragab] Beni Suef Univ, Fac Agr, Bot Dept, Bani Suwayf 62521, Egypt; [Seleiman, Mahmoud F.; Alotaibi, Majed] King Saud Univ, Coll Food & Agr Sci, Plant Prod Dept, POB 2460, Riyadh 11451, Saudi Arabia; [Seleiman, Mahmoud F.] Menoufia Univ, Dept Crop Sci, Fac Agr, Shibin Al Kawm 32514, Egypt; [Alhammad, Bushra Ahmed] Prince Sattam Bin Abdulaziz Univ, Biol Dept, Coll Sci & Humanity Studies, Al Kharj Box 292, Riyadh 11942, Saudi Arabia; [Rady, Mostafa M.] Fayoum Univ, Fac Agr, Bot Dept, Al Fayyum 63514, Egypt; [H. A. Mahdi, Ayman] Beni Suef Univ, Fac Agr, Agron Dept, Bani Suwayf 62521, Egypt
推荐引用方式 GB/T 7714	S. Taha, Ragab,Seleiman, Mahmoud F.,Alotaibi, Majed,et al. Exogenous Potassium Treatments Elevate Salt Tolerance and Performances of Glycine max L. by Boosting Antioxidant Defense System under Actual Saline Field Conditions[J]. King Saud University,2020,10(11).
APA	S. Taha, Ragab,Seleiman, Mahmoud F.,Alotaibi, Majed,Alhammad, Bushra Ahmed,Rady, Mostafa M.,&H. A. Mahdi, Ayman.(2020).Exogenous Potassium Treatments Elevate Salt Tolerance and Performances of Glycine max L. by Boosting Antioxidant Defense System under Actual Saline Field Conditions.AGRONOMY-BASEL,10(11).
MLA	S. Taha, Ragab,et al."Exogenous Potassium Treatments Elevate Salt Tolerance and Performances of Glycine max L. by Boosting Antioxidant Defense System under Actual Saline Field Conditions".AGRONOMY-BASEL 10.11(2020).