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题名: Variation in seed and seedling traits among natural populations of Trigonobalanus doichangensis (A. Camus) Forman (Fagaceae), a rare and endangered plant in southwest China
作者: Zheng, Y. L.1, 2; Sun, W. B.1; Zhou, Y.1; Coombs, D.3
刊名: NEW FORESTS
关键词: Ex situ conservation ; Genetic variation ; Natural populations ; Seed and seedling traits
英文摘要: The extent of genetic variation in seed and seedling traits of Trigonobalanus doichangensis, a rare and endangered tree in southwest China, was evaluated at the population level. Seeds were collected from four natural populations in the south and southwest Yunnan province, China. Significant differences (P < 0.05) between populations were observed in seed length, seed weight and seedling morphological characters. The analyses revealed that none of the seed and seedling traits had significant correlations with the geo-climatic variables of the populations. Among seed and seedling traits, significant correlations (P < 0.05) were discovered among seed length, seed weight and height of 30-day-old seedlings. Significant correlation (r = 1.00, P < 0.01) occurred also between the height and root collar diameter of 4-year-old seedlings. With the exception of seed width and seed germination percentage, 51-96% of total variation in other seed and seedling related traits was attributed to population effect, as determined by the broad sense heritability. In conclusion, these observations on variation in seed and seedling traits should be a reference point, when considering seed collection of this species for ex situ conservation and species restoration.
出版日期: 2009-05-01
卷号: 37, 期号:3, 页码:285-294
语种: 英语
收录类别: SCI
学科分类: Forestry
ISSN号: 0169-4286
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/2477
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 Bot Garden, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Pershore Grp Coll, Avonbank, Pershore WR10 3JP, Worcs, England

Recommended Citation:
Zheng, YL; Sun, WB; Zhou, Y; Coombs, D.Variation in seed and seedling traits among natural populations of Trigonobalanus doichangensis (A. Camus) Forman (Fagaceae), a rare and endangered plant in southwest China,NEW FORESTS,2009,37(3):285-294
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