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
Lan, Qin-ying1; Xia, Ke2; Wang, Xiao-feng3; Liu, Jun-wei1; Zhao, Jin1; Tan, Yun-hong1; 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
2014
发表期刊AUSTRALIAN JOURNAL OF BOTANY
ISSN0067-1924
卷号62期号:4页码:305-311
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.
关键词Predictive Model Recalcitrant Seeds Yunnan Province
资助信息China National Forest Department 948 Project [2011-4-54]; Supporting System Program of Strategic Biological Resources of the Chinese Academy of Sciences [08ZK121B01]; Ministry of Science and Technology of China [2005DKA21006]; National Natural Science Foundation of China [31200318]; West Light Foundation of the Chinese Academy of Sciences
收录类别SCI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/18370
专题中国科学院东亚植物多样性与生物地理学重点实验室
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
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
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Lan, Qin-ying,Xia, Ke,Wang, Xiao-feng,et al. 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[J]. AUSTRALIAN JOURNAL OF BOTANY,2014,62(4):305-311.
APA Lan, Qin-ying.,Xia, Ke.,Wang, Xiao-feng.,Liu, Jun-wei.,Zhao, Jin.,...&lqy@xtbg.org.cn.(2014).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,62(4),305-311.
MLA Lan, Qin-ying,et al."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 62.4(2014):305-311.
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