干旱区生态环境知识资源中心(Arid): Effectiveness of physiological traits in adopting safflower (Carthamus tinctorius L.) genotypes to water deficit condition

Arid

DOI	10.1007/s42106-019-00075-3
	Effectiveness of physiological traits in adopting safflower (Carthamus tinctorius L.) genotypes to water deficit condition
	Yeloojeh, Khadijeh Alizadeh; Saeidi, Ghodratollah; Ehsanzadeh, Parviz
通讯作者	Saeidi, Ghodratollah
来源期刊	INTERNATIONAL JOURNAL OF PLANT PRODUCTION
ISSN	1735-6814
EISSN	1735-8043
出版年	2020
卷号	14 期号:1 页码:155-164
英文摘要	Water deficit is the most limiting factor for seed yield of crop species in the arid and semi-arid regions. Due to increasing limitation of fresh water resources and importance of safflower (Carthamus tinctorius L.) as a significant oilseed crop in Iran, it is necessary to evaluate physiological responses of drought tolerance and its association with seed yield of this crop in water stress condition. In this study, 21 safflower genotypes were planted by hand in the field under water stress and non-stress conditions in a randomized complete block design with two replications during 2 years (2016-17). The results indicated that water deficit stress significantly reduced relative water content (RWC), chlorophyll a (Chl-a) and chlorophyll b (Chl-b) concentrations and seed yield, but increased ascorbate peroxidase (APX) and peroxidase (POX) activities and leaf proline concentration. Significant differences were observed among the genotypes for all studied traits except Chl-b concentration. Genotypes were discriminated according to their response to drought using stress tolerance index (STI). Drought tolerant genotypes displayed a higher capability for accumulation of proline in association with maintaining RWC, antioxidant enzymes activity and higher seed yield, compared to the drought sensitive genotypes. Presented results suggested that safflower genotypes with higher levels of antioxidant enzymes activity, RWC and proline accumulation are characterized by a higher STI. Therefore, these physiological traits can be employed as effective criteria for selecting safflower genotypes with more tolerance to water deficit stress.
英文关键词	Drought tolerance Physiological traits Safflower Seed yield Water stress
类型	Article
语种	英语
国家	Iran
收录类别	SCI-E
WOS记录号	WOS:000493772300001
WOS关键词	DROUGHT STRESS ; ANTIOXIDANT ENZYMES ; LIPID-PEROXIDATION ; OXIDATIVE STRESS ; TOLERANCE ; WHEAT ; RESPONSES ; PROLINE ; GROWTH ; BIOSYNTHESIS
WOS类目	Agronomy
WOS研究方向	Agriculture
EI主题词	2019-11-04
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310744
作者单位	Isfahan Univ Technol, Coll Agr, Dept Agron & Plant Breeding, Esfahan 8415683111, Iran
推荐引用方式 GB/T 7714	Yeloojeh, Khadijeh Alizadeh,Saeidi, Ghodratollah,Ehsanzadeh, Parviz. Effectiveness of physiological traits in adopting safflower (Carthamus tinctorius L.) genotypes to water deficit condition[J],2020,14(1):155-164.
APA	Yeloojeh, Khadijeh Alizadeh,Saeidi, Ghodratollah,&Ehsanzadeh, Parviz.(2020).Effectiveness of physiological traits in adopting safflower (Carthamus tinctorius L.) genotypes to water deficit condition.INTERNATIONAL JOURNAL OF PLANT PRODUCTION,14(1),155-164.
MLA	Yeloojeh, Khadijeh Alizadeh,et al."Effectiveness of physiological traits in adopting safflower (Carthamus tinctorius L.) genotypes to water deficit condition".INTERNATIONAL JOURNAL OF PLANT PRODUCTION 14.1(2020):155-164.