Altitudinal variations in flower and bulbil production of an alpine perennial, Polygonum viviparum L. (Polygonaceae)
Fan, D. -M.1,2; Yang, Y. -P.1
2009-05-01
发表期刊PLANT BIOLOGY
ISSN1435-8603
卷号11期号:3页码:493-497
摘要Two opposite views exist regarding sexual versus asexual reproductive performance of Polygonum viviparum. One suggests that increasing altitude favors flower production, while the other suggests that increasing altitude increases bulbil production. In this study, we present an investigation of the reproductive performance of 13 populations of P. viviparum on the Qinghai-Tibet Plateau (QTP). Our results show that, with increasing altitude, the height of inflorescence and total number of flowers and bulbils decrease significantly, but there is no significant effect on bulbil and flower number. In addition, there is a weak correlation between the proportion of flowers per population and altitude in our study sites due to the exception population 12, which is in a disturbed habitat. We conclude that more resources might be allocated to flowers in populations at higher altitudes, indicating the importance of sexual reproduction over asexual reproduction in alpine plants of QTP.
关键词Alpine Plants ASexual And Sexual Reproduction Qinghai-tibet Plateau Vivipary
资助信息Chinese Academy of Sciences [540706571121]; Ford Foundation [1075-0729]; Natural Science Foundation of China [30700096]
收录类别SCI
语种英语
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文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/3100
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
作者单位1.Chinese Acad Sci, Key Lab Biodivers & Biogeog, Kunming Inst Bot, Kunming, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
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Fan, D. -M.,Yang, Y. -P.. Altitudinal variations in flower and bulbil production of an alpine perennial, Polygonum viviparum L. (Polygonaceae)[J]. PLANT BIOLOGY,2009,11(3):493-497.
APA Fan, D. -M.,&Yang, Y. -P..(2009).Altitudinal variations in flower and bulbil production of an alpine perennial, Polygonum viviparum L. (Polygonaceae).PLANT BIOLOGY,11(3),493-497.
MLA Fan, D. -M.,et al."Altitudinal variations in flower and bulbil production of an alpine perennial, Polygonum viviparum L. (Polygonaceae)".PLANT BIOLOGY 11.3(2009):493-497.
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