Full TGIF Record # 270989
Item 1 of 1
DOI:10.11686/cyxb2015098
Web URL(s):http://cyxb.lzu.edu.cn/EN/article/downloadArticleFile.do?attachType=PDF&id=3551
    Last checked: 04/18/2016
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Publication Type:
i
Report
Author(s):Zhu, Hui-sen; Wang, Bao-ping; Dong, Xiao-yan; Dong, Kuan-hu; Li, Cun-fu
Author Affiliation:Zhu, Wang, Xiao-yan Dong, and Kuan-hu Dong: College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu; Li: National Animal Husbandrad [Husbandry] Service, Beijing, China
Title:Effects of drought stress and rewatering on the growth and physiological characteristics of Shanxi wild Poa pratensis seedlings
Source:[Caoye Xuebao] [Acta Prataculturae Sinica]. Vol. 24, No. 7, July 20 2015, p. 79-88.
# of Pages:10
Publishing Information:[Lanzhou Shi, China]: ["Cao Ye Xue Bao" Bian Ji Wei Yuan Hui]
Keywords:TIC Keywords: Cultivar evaluation; Cultivar variation; Drought stress; Growth analysis; Physiological responses; Poa pratensis; Regional variation; Seedling emergence; Seedling vigor
Abstract/Contents:"Research has been undertaken on the effects of drought and rewatering on the growth and physiological characteristics of 15 species wild Poa pratensis seedlings in Shanxi. Using pot tests, at the four-leaf stage the P. pratensis species were water-controlled for 21 days and then re-watered. Seedling survival rates, relative growth rates (RGR), relative water content (RWC), proline (Pro), and the activity of superoxide dismutase (SOD) and malondialdehyde (MDA) content were measured on the 21st day after water-controlling and the 7th day after rewatering. All indexes were evaluated with the subordination function method to obtain the membership value of each population. Results showed that seedling survival rates, RGR, RWC and SOD declined during the 21-day drought stress. However, Pro and MDA contents increased. After rewatering, all the indexes rehabilitated to some degree but did not recover to the same level as the control groups. Data analysis showed the tested P. pratensis species could be grouped into three kinds. Class II were medium drought-resistant populations, including Qinshui II, Hunyuan I, Qinshui I, Wutai, Hunyuan II, Yingxian, Guangling and Lingqiu. Class III showed weaker drought resistance, including the Yuanqu, Ningwu, Huozhou, Xinzhou, Wuzhai and Lingshi populations. The Tunliu population was categorized as class IV, which had no drought resistance. The membership value of the Qinshui II population was the highest, and could be used as the key selection object in the future."
Language:Chinese
References:38
Note:Abstract also appears in English
Equations
Tables
Geographic Terms:Shanxi, China
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Zhu, H.-s., B.-p. Wang, X.-y. Dong, K.-h. Dong, and C.-f. Li. 2015. Effects of drought stress and rewatering on the growth and physiological characteristics of Shanxi wild Poa pratensis seedlings. (In Chinese) [Caoye Xuebao] [Acta Prataculturae Sinica]. 24(7):p. 79-88.
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DOI: 10.11686/cyxb2015098
Web URL(s):
http://cyxb.lzu.edu.cn/EN/article/downloadArticleFile.do?attachType=PDF&id=3551
    Last checked: 04/18/2016
    Requires: PDF Reader
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