Seed germination of Lasia spinosa as a function of temperature, light, desiccation, and storage
Tang, An-jun1,2; Long, Chun-lin1
2008-11-01
发表期刊AQUATIC BOTANY
ISSN0304-3770
卷号89期号:4页码:352-356
摘要Lasia spinosa seeds were not dormant at maturity in early spring. The most favorable temperatures for germination were between 25 and 30 degrees C, and final percentage and rate of germination decreased with an increase or decrease in temperature. When L. spinosa seeds were transferred to 25 degrees C, after 60 days at 10 degrees C (where none of the seeds germinated), final germination increased from 0% to 78%. Seeds germinated to high percentage both in light and in dark, although dark germination took more than twice as long as in the light. During desiccation of seeds at 15 degrees C and 45% relatively humidity, moisture loss decreased exponentially from 2.02 to 0.13 g H2O g(-1) dry wt within 16 days, and only a few seeds (12%) survived 0.13 g H2O g(-1) dry wt moisture content. Seeds stored at 0.58 g H2O g(-1) dry wt moisture content at four constant temperatures (4,10,15, and -18 degrees C) for up to 6 months exhibited a well-defined trend of decreasing viability with decreasing temperature. Thus, we concluded that freshly harvested L. spinosa seeds are non-dormant and recalcitrant. Also, the seeds with 0.58 g H2O g(-1) dry wt moisture content could be effectively stored for a few months between 10 and 15 degrees C although the most appropriate temperature for wet storage appears to be 10 degrees C, as it is close to the minimum temperature for germination and so there will be less pre-sprouting compared to 15 degrees C. (C) 2008 Elsevier B.V. All rights reserved.
关键词Lasia Spinosa Desiccation Tolerance Recalcitrant Seeds Seed Germination Seed Storage Tropical Swamp
资助信息This study was supported by the National Science Research Foundation of China (30170102), and the ministry of Science and Technology of China (2004DKA30430 & 2005DKA21006). Prof. Dr. Song-Quan Song of the Xishuangbanna Tropical Garden (XTBG), Chinese Academy of Sciences, provided necessary support for the laboratory work. Prof. Dr. Greg Welbaum at the Virginia Tech read critically the draft manuscript and proposed helpful suggestions. Also, we are extremely grateful to Ms. Tian Mei-hua (XTBG) and Carol C. Baskin and Jerry M. Baskin (University of Kentucky, Lexington, KY, USA) for their critical reading of the manuscript and brought forward helpful suggestions.
学科领域Plant Sciences ; Marine & Freshwater Biology
DOI10.1016/j.aquabot.2008.04.003
收录类别SCI
语种英语
WOS研究方向Plant Sciences ; Marine & Freshwater Biology
WOS类目Plant Sciences ; Marine & Freshwater Biology
WOS记录号WOS:000259129400002
引用统计
被引频次:9[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/151853/2497
专题资源植物与生物技术所级重点实验室
作者单位1.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
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Tang, An-jun,Long, Chun-lin. Seed germination of Lasia spinosa as a function of temperature, light, desiccation, and storage[J]. AQUATIC BOTANY,2008,89(4):352-356.
APA Tang, An-jun,&Long, Chun-lin.(2008).Seed germination of Lasia spinosa as a function of temperature, light, desiccation, and storage.AQUATIC BOTANY,89(4),352-356.
MLA Tang, An-jun,et al."Seed germination of Lasia spinosa as a function of temperature, light, desiccation, and storage".AQUATIC BOTANY 89.4(2008):352-356.
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