Leaf Growth, Gas Exchange and Chlorophyll Fluorescence Parameters in Response to Different Water Deficits in Wheat Cultivars

	Leaf Growth, Gas Exchange and Chlorophyll Fluorescence Parameters in Response to Different Water Deficits in Wheat Cultivars
	Wu, Xiaoli ; Bao, Weikai
刊名	PLANT PRODUCTION SCIENCE
	2011
卷号	14 期号:3 页码:254-259
关键词	Chlorophyll fluorescence Gas exchange Leaf growth Water deficit Wheat cultivar
ISSN号	1343-943X
通讯作者	Bao, WK (reprint author), Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China.
产权排序	1
英文摘要	We investigated responses of wet climate (CY17) and dry climate (XN889) Trititcum aestivum L cultivars under 85, 55 and 25% field water capacity (FC). Less decrease in grain yield, relative water content, growth, gas exchange and chlorophyll fluorescence parameters indicated that XN889 was more drought-tolerant than CY17. At 55%FC, CY17 showed a lower net photosynthetic rate (Pn) than XN889 mainly due to stomatal closure. Stomatal closure was also observed in XN1889, but its Pn was higher at 55%FC than at 85%FC. The higher Pn in XN1889 may be associated with a higher chlorophyll content and resulting increase in photochemical quenching (qP), apparent electron transport rate, and effective quantum yield of photosystem II (PSII). Both cultivars showed photodamage at 25%FC, but XN889 showed less photodamage in terms of maximal PSII photochemical efficiency. XN889 showed higher qP and non-photochemical quenching than CY17, further demonstrating its superior drought tolerance.
学科主题	Agriculture
收录类别	SCI
资助信息	National science and technology programs of China[2008BAD98B03]
语种	英语
WOS记录号	WOS:000292905500006
公开日期	2012-11-09
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/23441]
专题	成都生物研究所_生态研究
推荐引用方式 GB/T 7714	Wu, Xiaoli,Bao, Weikai. Leaf Growth, Gas Exchange and Chlorophyll Fluorescence Parameters in Response to Different Water Deficits in Wheat Cultivars[J]. PLANT PRODUCTION SCIENCE,2011,14(3):254-259.
APA	Wu, Xiaoli,&Bao, Weikai.(2011).Leaf Growth, Gas Exchange and Chlorophyll Fluorescence Parameters in Response to Different Water Deficits in Wheat Cultivars.PLANT PRODUCTION SCIENCE,14(3),254-259.
MLA	Wu, Xiaoli,et al."Leaf Growth, Gas Exchange and Chlorophyll Fluorescence Parameters in Response to Different Water Deficits in Wheat Cultivars".PLANT PRODUCTION SCIENCE 14.3(2011):254-259.