Comparing the relationship between seed germination and temperature for Stipa species on the Tibetan Plateau

CORC > 昆明植物研究所 > 中国科学院昆明植物研究所 > 资源植物与生物技术所级重点实验室

	Comparing the relationship between seed germination and temperature for Stipa species on the Tibetan Plateau
	Yang, Shihai 1,2; Li, Xiong3,4,5 ; Yang, Yunqiang3,4,5 ; Yin, Xin 3,4,5; Yang, Yongping1,3,4,5
刊名	BOTANY
	2014-12-01
卷号	92 期号:12 页码:895-900
关键词	alpine steppe seed germination cardinal temperature thermal time Stipa species Tibetan Plateau
ISSN号	1916-2790
通讯作者	Yang,YP (reprint author),Chinese Acad Sci,Inst Tibetan Plateau Res,Beijing 100101,Peoples R China. ; yangyp@itpcas.ac.cn
产权排序	第一
英文摘要	Alpine steppe grasslands dominated by Stipa species (Poaceae) on the Tibetan Plateau are important model ecosystems. Here, we present data on seed germination of three typical Stipa species (Stipa purpurea Griseb., Stipa glareosa P.A. Smirn., and Stipa capillacea Keng) from the northern core region of the Tibetan Plateau. We carried out laboratory investigations of germination behavior under both constant and alternating temperatures. Germination varied significantly with temperature. Under constant temperature, we found that temperature and species, but not their interaction, had significant effects on seed germination. Under alternating temperatures, species had a significant effect on seed germination, whereas the effects of alternating temperature and the interaction between species and alternating temperature were not significant. In addition, light and the interaction of light and species had no significant effect on seed germination; however, species had a significant effect, implying that Stipa species on the Tibetan Plateau are not inhibited by light. Base temperatures of S. glareosa, S. purpurea, and S. capillacea were 1.0 degrees C, 0.1 degrees C, and -1.4 degrees C, respectively, with corresponding thermal times at suboptimal temperatures of 233 degrees C-day, 154 degrees C-day, and 263.2 degrees C-day. Our results suggest that Stipa seed germination characteristics are adaptions to a harsh environment and are species-specific.
学科主题	Plant Sciences
类目[WOS]	Plant Sciences
研究领域[WOS]	Plant Sciences
关键词[WOS]	THERMAL TIME REQUIREMENTS ; ENVIRONMENTAL-FACTORS ; EMERGENCE ; STEPPE ; LIGHT ; ECOLOGY ; DESERT ; CHINA ; PLANT ; GERMINABILITY
收录类别	SCI
资助信息	Mushroom Research Foundation, Chiang Rai, Thailand; Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Academy of Agricultural Sciences, Xiaohe District, Guiyang City, Guizhou Province, People's Republic of China; Humidtropics, a CGIAR Research Program; Chinese Academy of Sciences [2013T2S0030]
语种	英语
WOS记录号	WOS:000346188900004
公开日期	2015-01-20
内容类型	期刊论文
源URL	[http://ir.kib.ac.cn/handle/151853/18492]
专题	昆明植物研究所_资源植物与生物技术所级重点实验室
作者单位	1.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Plant Divers & Biogeog East Asia, Kunming 650204, Peoples R China 4.Chinese Acad Sci, Kunming Inst Bot, Plant Germplasm & Genome Ctr, Germplasm Bank Wild Species, Kunming 650204, Peoples R China 5.Chinese Acad Sci, Inst Tibetan Plateau Res Kunming, Kunming Inst Bot, Kunming 650204, Peoples R China
推荐引用方式 GB/T 7714	Yang, Shihai,Li, Xiong,Yang, Yunqiang,et al. Comparing the relationship between seed germination and temperature for Stipa species on the Tibetan Plateau[J]. BOTANY,2014,92(12):895-900.
APA	Yang, Shihai,Li, Xiong,Yang, Yunqiang,Yin, Xin,&Yang, Yongping.(2014).Comparing the relationship between seed germination and temperature for Stipa species on the Tibetan Plateau.BOTANY,92(12),895-900.
MLA	Yang, Shihai,et al."Comparing the relationship between seed germination and temperature for Stipa species on the Tibetan Plateau".BOTANY 92.12(2014):895-900.