| 矮牡丹传粉生物学的初步研究 |
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| 引用本文： | 罗毅波,裴颜龙,潘开玉,洪德元.矮牡丹传粉生物学的初步研究[J].中国科学院研究生院学报,1998,36(2):134-144. |
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| 作者姓名： | 罗毅波 裴颜龙 潘开玉 洪德元 |
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| 摘 要： | 对山西省南部矮牡丹3个居群连续两年的野外观察和实验研究表明，共有5种蜂和4种甲虫参
与矮牡丹的传粉。电镜观察和人工控制昆虫传粉试验证明，蜂类，特别是地蜂类是矮牡丹的主要传粉
者，而甲虫类只是一种不稳定的传粉者。矮牡丹花无蜜液，但可散发气味，主要以花粉吸引昆虫。矮牡
丹不存在无融合生殖，也没有自动自花结实现象，但同株异花能产生少量种子，具微弱的自交性。在花
少的居群中自然结实率与人工异交结实率近相等。矮牡丹的结实率低，平均只有近1／4的胚珠发育成种子。
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| 关 键 词： | 芍药科 矮牡丹 开花期 传粉生物学 繁殖系统 蜂类 甲虫类 |
A Study on Pollination Biology of Paeonia suffruticosa subsp. spontanea (Paeoniaceae) |
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| LUO Yi-Bo,PEI Yan-Long,PAN Kai-Yu,HONG De-Yuan.A Study on Pollination Biology of Paeonia suffruticosa subsp. spontanea (Paeoniaceae)[J].Journal of the Graduate School of the Chinese Academy of Sciences,1998,36(2):134-144. |
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| Authors: | LUO Yi-Bo PEI Yan-Long PAN Kai-Yu HONG De-Yuan |
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| Abstract: | Field observation on pollination in three populations of Paeonia suffruticosa sub-
sp. spontanea in southern Shanxi Province showed that five species of bees in two families
and four species of beetles were engaged in pollination. Examination on bodies of these in-
sects under SEM, and seed set produced by controlled insect-pollination indicated that the
bees, especially the species in the genus Andrena were main pollinators and the beetles ex-
cept those of small size were only fluctuating vectors. Flowers of this taxon are scented and
nonectariferous. Flowers attracted bees and beetles mainly by pollen. A study on seed-set in
the three populations revealed considerable variation within and among populations. The
plants were no apomict and autogamy, but geitonogamy sometimes could produce mature
seeds (x＝ 2.86 seeds per carpel). In the population with less flowers (less than 40 flowers),
natural seed-set (x＝3.88) was close to the seed-set produced by hand cross-pollination (x =
3.21), but in the population with more flowers(near 100 flowers) natural seed-set (x＝
2.48) was lower than that by hand cross-pollination (x = 3.21). The seed-set was low for
both natural and artificial cross-pollination with only about one forth of ovules developing into seeds. |
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| Keywords: | Paeoniaceae Paeonia suffruticosa subsp．Spontanea Flowering PollinationBiology Breeding system Bees Beetles |
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