Comparing the relationship between seed germination and temperature for Stipa species on the Tibetan Plateau
Yang, Shihai1,2; Li, Xiong3,4,5; Yang, Yunqiang3,4,5; Yin, Xin3,4,5; Yang, Yongping1,3,4,5; Yang,YP (reprint author),Chinese Acad Sci,Inst Tibetan Plateau Res,Beijing 100101,Peoples R China.; yangyp@itpcas.ac.cn
2014-12-01
发表期刊BOTANY
ISSN1916-2790
卷号92期号:12页码:895-900
产权排序第一
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.
关键词Alpine Steppe Seed Germination Cardinal Temperature Thermal Time Stipa Species Tibetan Plateau
资助信息Mushroom Research Foundation, Chiang Rai, Thailand; 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]; 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]
学科领域Plant Sciences
DOI10.1139/cjb-2014-0105
收录类别SCI
语种英语
WOS研究方向Plant Sciences
WOS类目Plant Sciences
WOS记录号WOS:000346188900004
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/18492
专题资源植物与生物技术所级重点实验室
通讯作者Yang,YP (reprint author),Chinese Acad Sci,Inst Tibetan Plateau Res,Beijing 100101,Peoples R China.; yangyp@itpcas.ac.cn
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
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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.,...&yangyp@itpcas.ac.cn.(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.
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