干旱区生态环境知识资源中心(Arid): Seed yield and physiological responses to deal with drought stress and late sowing date for promising lines of rapeseed (Brassica napus L.)

Arid

DOI	10.31545/intagr/124388
	Seed yield and physiological responses to deal with drought stress and late sowing date for promising lines of rapeseed (Brassica napus L.)
	Teymoori, Maryam; Ardakani, Mohammad Reza; Rad, Amir Hossein Shirani; Alavifazel, Mojtaba; Manavi, Parisa Nejatkhah
通讯作者	Ardakani, MR
来源期刊	INTERNATIONAL AGROPHYSICS
ISSN	0236-8722
EISSN	2300-8725
出版年	2020
卷号	34 期号:3 页码:321-331
英文摘要	The introduction of new genotypes of crop plants is among the most strategic research programmes, especially in arid and semi-arid regions. To study the effect of drought stress on seed yield and some physiological traits of promising lines of rapeseed at different sowing dates, an experiment was conducted for two years (2015-2017) in a semi-arid region of Iran. In this research, two conventional sowing dates were set in October 12 and November 1 (late sowing). Irrigation was carried out at two levels: normal irrigation (control) and irrigation interruption from the silique formation stage to the next stage (late-season drought stress). The genotypes included four promising lines (L1112, L1091, L1093, L1206), and a cultivar (Okapi) as a control. Results showed that delayed sowing and drought stress increased carbohydrate content and decreased seed yield, with the highest carbohydrate content and highest yield loss in L1112 and the lowest carbohydrate and lowest yield loss in the L1206 line. Among the physiological traits measured, stomatal resistance had the highest degree of correlation and the highest direct negative effect on seed yield, which declined with increasing stomatal resistance. L1112 had the highest stomatal resistance (52.76 s cm(-1)) in delayed sowing and drought stress conditions. Therefore, L1206 and L1112 were revealed to be resistant and sensitive lines, respectively.
英文关键词	Brassica napus L. carbohydrate correlation drought stress seed yield proline
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:000581855600004
WOS关键词	WATER ; ADAPTATION ; GENOTYPES ; PROTEIN ; FUNGI ; ACID
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/2XILL650/327093
作者单位	[Teymoori, Maryam; Manavi, Parisa Nejatkhah] Islamic Azad Univ, North Tehran Branch, Dept Agron, POB 13919-37911, Tehran, Iran; [Ardakani, Mohammad Reza] Islamic Azad Univ, Karaj Branch, Dept Agron, POB 31499-68111, Karaj, Iran; [Rad, Amir Hossein Shirani] Agr Res Educ & Extens Org AREEO, Dept Oilseed Res, Seed & Plant Improvement Inst SPII, POB 31359-33151, Tehran, Iran; [Alavifazel, Mojtaba] Islamic Azad Univ, Ahvaz Branch, Dept Agron, POB 61349-37333, Ahwaz, Iran
推荐引用方式 GB/T 7714	Teymoori, Maryam,Ardakani, Mohammad Reza,Rad, Amir Hossein Shirani,et al. Seed yield and physiological responses to deal with drought stress and late sowing date for promising lines of rapeseed (Brassica napus L.)[J],2020,34(3):321-331.
APA	Teymoori, Maryam,Ardakani, Mohammad Reza,Rad, Amir Hossein Shirani,Alavifazel, Mojtaba,&Manavi, Parisa Nejatkhah.(2020).Seed yield and physiological responses to deal with drought stress and late sowing date for promising lines of rapeseed (Brassica napus L.).INTERNATIONAL AGROPHYSICS,34(3),321-331.
MLA	Teymoori, Maryam,et al."Seed yield and physiological responses to deal with drought stress and late sowing date for promising lines of rapeseed (Brassica napus L.)".INTERNATIONAL AGROPHYSICS 34.3(2020):321-331.