Seed germination of Lasia spinosa as a function of temperature, light, desiccation, and storage

doi:10.1016/j.aquabot.2008.04.003

	Seed germination of Lasia spinosa as a function of temperature, light, desiccation, and storage
	Tang, An-jun 1,2; Long, Chun-lin 1
通讯作者	long@mail.kib.ac.cn
	2008-11-01
发表期刊	AQUATIC BOTANY
ISSN	0304-3770
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
学科领域	Plant Sciences ; Marine & Freshwater Biology
DOI	10.1016/j.aquabot.2008.04.003
收录类别	SCI
语种	英语
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
推荐引用方式 GB/T 7714	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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