干旱区生态环境知识资源中心(Arid): Amelioration of high temperature stress by exogenously applied salicylic acid: Genotype-specific response of physiological traits

Arid

DOI	10.1002/agj2.20150
	Amelioration of high temperature stress by exogenously applied salicylic acid: Genotype-specific response of physiological traits
	Pirnajmedin, Fatemeh; Majidi, Mohammad Mahdi; Taleb, Hadi; Maibody, Sayed Ali Mohammad Mirmohammady; Saeidi, Ghodratollah
通讯作者	Majidi, Mohammad Mahdi
来源期刊	AGRONOMY JOURNAL
ISSN	0002-1962
EISSN	1435-0645
出版年	2020
卷号	112 期号:3 页码:1573-1579
英文摘要	In arid and semi-arid regions of the world, high temperature stress adversely affects growth and development of cool-season grasses during late spring and summer. Salicylic acid (SA) is one of the endogenous plant growth regulators that plays an important role in the regulation of plant growth and development in response to high temperature stress. The aim of the present study was to assess the effectiveness of SA in alleviating the negative effects of high temperature during the summer in different tall fescue (Festuca arundinacea Schreb.) genotypes under field conditions. Twenty genotypes of tall fescue (selected from a broad native and exotic germplasm) were assessed at field condition for morphological and physiological characteristics during 2016 and 2017 under normal irrigation in the presence of two SA concentrations (0 and 1 mM). High temperature during the summer led to induction of incomplete summer dormancy and depression in summer forage yield. Application of SA decreased the adverse effects of high temperature stress by elevation of photosynthetic pigments, proline accumulation, and increasing nonenzyme and enzymatic antioxidant activities, and could therefore be used to enhance forage yield and heat tolerance in tall fescue genotypes. The genotypes exhibited obvious differences in their response to SA application under the semiarid climate conditions of central Iran. Among the studied genotypes, 3L and 1E were recognized as heat tolerant and stable genotypes that would be preferable for regions with high temperature.
类型	Article
语种	英语
国家	Iran
收录类别	SCI-E
WOS记录号	WOS:000543788500007
WOS关键词	HEAT-STRESS ; HYDROGEN-PEROXIDE ; MOLECULAR-MECHANISMS ; ABSCISIC-ACID ; TOLERANCE ; DROUGHT ; THERMOTOLERANCE ; PHOTOSYNTHESIS ; METABOLISM ; SEASON
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319374
作者单位	Isfahan Univ Technol, Dept Agron & Plant Breeding, Coll Agr, Esfahan 8415683111, Iran
推荐引用方式 GB/T 7714	Pirnajmedin, Fatemeh,Majidi, Mohammad Mahdi,Taleb, Hadi,et al. Amelioration of high temperature stress by exogenously applied salicylic acid: Genotype-specific response of physiological traits[J],2020,112(3):1573-1579.
APA	Pirnajmedin, Fatemeh,Majidi, Mohammad Mahdi,Taleb, Hadi,Maibody, Sayed Ali Mohammad Mirmohammady,&Saeidi, Ghodratollah.(2020).Amelioration of high temperature stress by exogenously applied salicylic acid: Genotype-specific response of physiological traits.AGRONOMY JOURNAL,112(3),1573-1579.
MLA	Pirnajmedin, Fatemeh,et al."Amelioration of high temperature stress by exogenously applied salicylic acid: Genotype-specific response of physiological traits".AGRONOMY JOURNAL 112.3(2020):1573-1579.