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题名: Seed storage behaviour of Magnolia odoratissima
作者: Han, C. Y.1; Sun, W. B.1
刊名: SEED SCIENCE AND TECHNOLOGY
英文摘要: Magnolia odoratissima is endemic to Yunnan Province in southwest China. The flowers and leaves contain approximately 0.2% aromatic oil, making it an excellent perfume plant. However, the species is now facing an extremely high risk of extinction in the wild and has been proposed as a critically endangered tree. To effectively preserve its germplasm via seeds, we studied the effects of moisture content and storage conditions on seed germination. The 1000-seed weight, initial moisture content and germination of fresh seeds were 184.0 g, 33.2% and 98%, respectively. Most of the seeds tolerated desiccation to 21.6% moisture content, while more than half of the seeds lost viability when dried to 14.1% and only a few seeds (21-28%) survived when the moisture content was reduced to 9.9%. Therefore, M. odoratissima seeds showed intermediate storage behaviour. Non-desiccated seeds retained viability at storage temperatures of 4, 8 and 20 degrees C. However, the viability of both air-dried and pre-chilled seeds stored at 4, 8 and 20 degrees C was reduced with prolonged storage time. The seeds stored for all treatments at -20 degrees C lost viability. The data consequently suggest that M. odoratissima seeds are chilling-tolerant intermediate seeds which can be stored at 4 degrees C for up to one year.
出版日期: 2013
卷号: 41, 期号:1, 页码:143-147
语种: 英语
收录类别: SCI
学科分类: Agronomy ; Plant Sciences ; Horticulture
ISSN号: 0251-0952
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/16593
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Kunming Bot Garden, Kunming 650204, Peoples R China

Recommended Citation:
Han, C. Y.,Sun, W. B.. Seed storage behaviour of Magnolia odoratissima[J]. SEED SCIENCE AND TECHNOLOGY,2013,41(1):143-147.
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