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题名: Seed storage behaviour of 101 woody species from the tropical rainforest of southern China: a test of the seed-coat ratio-seed mass (SCR-SM) model for determination of desiccation sensitivity
作者: Lan, Qin-ying1; Xia, Ke2; Wang, Xiao-feng3; Liu, Jun-wei1; Zhao, Jin1; Tan, Yun-hong1
刊名: AUSTRALIAN JOURNAL OF BOTANY
出版日期: 2014
卷号: 62, 期号:4, 页码:305-311
关键词: predictive model ; recalcitrant seeds ; Yunnan Province
学科分类: Plant Sciences
DOI: 10.1071/BT14037
通讯作者: Lan,QY (reprint author),Chinese Acad Sci,Key Lab Trop Forest Ecol,Xishuangbanna Trop Bot Garden,Germplasm Bank,Mengla 666303,Yunnan,Peoples R China. ; lqy@xtbg.org.cn
文章类型: Article
英文摘要: The Xishuangbanna tropical rainforest in Yunnan Province is the greatest biodiversity hotspot in China. However, the biodiversity of this region is under threat, making seed conservation through seed and/or germplasm banking particularly urgent and crucial. Seed desiccation sensitivity limits the possibility of seed banking of 47% of tropical rainforest species. Thus, knowing if a species has desiccation-sensitive seeds is an important first step in seed banking; however, often resources are limited, making it difficult to determine storage behaviour for all the species in a region. Prediction of seed sensitivity using the SCR-SM model based on seed-coat ratio (SCR) and seed dry mass (SM) might be an alternative for determining desiccation sensitivity of seeds of each species. Here, seed-desiccation sensitivity of 101 woody species from the Xishuangbanna tropical forest were analysed using this model, and physiological determinations were made for a total of 25 species. Seed storage behaviour for 59 species was used for model validation, and storage behaviour of 88% of these species was successfully predicted. Seed storage behaviour of 83% of the 59 species was successfully predicted using the 1000-seed weigth-moisture content (TSW-MC) criteria, which include seeds with 1000-seed weight >500 g and seed moisture content at shedding of 30-70%. The two predictive methods were subsequently used to predict seed desiccation sensitivity for another 42 species from Xishuangbanna whose storage behaviour was uncertain. Our results indicated that similar to 50% of the species in Xishuangbanna are likely to have desiccation-sensitive seeds.
类目[WOS]: Plant Sciences
研究领域[WOS]: Plant Sciences
关键词[WOS]: RECALCITRANT SEEDS ; TOLERANCE ; CONSERVATION ; GERMINATION ; RESPONSES ; TRAITS ; PALM
收录类别: SCI
语种: 英语
WOS记录号: WOS:000341588000004
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/18370
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Germplasm Bank, Mengla 666303, Yunnan, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming 650201, Yunnan, Peoples R China
3.Beijing Forestry Univ, Beijing 100083, Peoples R China

Recommended Citation:
Lan,Qin-ying;Xia,Ke;Wang,Xiao-feng;Liu,Jun-wei;Zhao,Jin;Tan,Yun-hong.Seed storage behaviour of 101 woody species from the tropical rainforest of southern China: a test of the seed-coat ratio-seed mass (SCR-SM) model for determination of desiccation sensitivity,AUSTRALIAN JOURNAL OF BOTANY,2014,62(4):305-311
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