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|本期目录/Table of Contents|

花粉和资源限制对青阳参坐果率的影响

《广西植物》[ISSN:1000-3142/CN:45-1134/Q]

期数:
2011年04期
页码:
469
栏目:
植物生态学与环境生物学
出版日期:
2011-07-25

文章信息/Info

Title:
Pollen and resource limitations to fruit set of Qingyangshen (Cynanchum otophyllum)
作者:
王定康1 孙桂芳2 翟书华1陈雪1 王再3
1.昆明学院 生物系, 昆明 650214; 2.昆明医学院 临床技能中心, 昆明 650031; 3.昆明市第十中学, 昆明 650000
Author(s):
WANG DingKang1 SUN GuiFang2 ZHAI ShuHua1 CHEN Xue1 WANG Zai3
1.Department of Biology, Kunming University, Kunming 650214, China; 2.Clinical Skill Center, Kunming Medical College, Kunming 650031, China; 3.Kunming No10 Middle School, Kunming 650000, China
关键词:
青阳参 坐果率 花粉限制 资源限制 补充授粉
Keywords:
Cynanchum otophyllumfruit setpollen limitationresource limitationhandpollinated
分类号:
Q948
DOI:
-
文献标识码:
A
摘要:
以生长于自然种群的青阳参植株为材料进行补充授粉试验,以人工种植的青阳参植株为材料进行资源限制试验,探讨花粉和资源限制对青阳参坐果率的影响。结果表明:自花授粉、天然授粉和异株异花授粉植株的结实率分别为1.7%、2.25%和24%,花粉来源对青阳参坐果存在显著影响;补充施肥和不补充施肥植株的坐果率分别为5.12%和3.17%、去除0~80%的花其坐果率为3.28%~15.34%、叶片剪除0~100%其坐果率为3.22%~1.35%,资源限制对青阳参坐果率有显著影响。
Abstract:
To test the relationship of pollen limitations and resource limitations with fruit set,the experiments of pollen limitations to fruit set of Cynanchum otophyllum(Asclepiadaceae)were handpollinated in a wild population,while resource limitations to fruit set were performed in a cultivated population. The results were as follows:The fruit set of artificial selfing,natural pollination and artificial outcrossing were 1.7%,2.25% and 24% separately,which showed pollens from different sources had significant effect on fruit set of C.otophyllum. The fruit set of fertilized and nonfertilized plants were 5.12% and 3.17%. After removing 0-80% flowers, the fruit set increased from 3.28% to 15.34%. With the increasing percentages of cutting leaves from 0 to 100%,the fruit set decreased from 322% to 1.35%,which showed resource limitations had significant effect on fruit set of C.otophyllum.

参考文献/References

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2011-07-25