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首页> 外文学位 >Pollination and comparative reproductive success of lady's slipper orchids Cypripedium candidum, C. parviflorum, and their hybrids in southern Manitoba.
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Pollination and comparative reproductive success of lady's slipper orchids Cypripedium candidum, C. parviflorum, and their hybrids in southern Manitoba.

机译：在曼尼托巴省南部，夫人兰兰花Cy兰，C。parviflorum及其杂交种的授粉和比较繁殖成功。

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摘要

I investigated how orchid biology, floral morphology, and diversity of surrounding floral and pollinator communities affected reproductive success and hybridization of Cypripedium candidum and C. parviflorum. Floral dimensions, including pollinator exit routes were smallest in C. candidum, largest in C. parviflorum , with hybrids intermediate and overlapping with both. This pattern was mirrored in the number of insect visitors, fruit set, and seed set. Exit route size seemed to restrict potential pollinators to a subset of visiting insects, which is consistent with reports from other rewardless orchids. Overlap among orchid taxa in morphology, pollinators, flowering phenology, and spatial distribution, may affect the frequency and direction of pollen transfer and hybridization. The composition and abundance of co-flowering rewarding plants seems to be important for maintaining pollinators in orchid populations. Comparisons with orchid fruit set indicated that individual co-flowering species may be facilitators or competitors for pollinator attention, affecting orchid reproductive success.
机译：我调查了兰花生物学，花的形态以及周围花和授粉媒介群落的多样性如何影响白色Cy兰和小花。兰的繁殖成功和杂交。花的尺寸，包括传粉媒介的出口途径，在C. candidum中最小，在C. parviflorum中最大，杂种居中并且重叠。这种模式反映在昆虫来访者，水果座和种子座的数量上。出口通道的大小似乎将可能的传粉媒介限制在一部分来访昆虫上，这与其他无奖兰花的报道一致。兰花类群在形态，传粉媒​​介，开花物候和空间分布上的重叠可能影响花粉转移和杂交的频率和方向。共同开花的有益植物的组成和丰度对于维持兰花种群中的传粉媒介似乎很重要。与兰花果实的比较表明，单个共同开花的物种可能是传粉媒介关注的促进者或竞争者，影响兰花的繁殖成功。

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  • 作者

    Pearn, Melissa Anne.;

  • 作者单位

    University of Manitoba (Canada).;

  • 授予单位 University of Manitoba (Canada).;
  • 学科 Botany.
  • 学位 M.Sc.
  • 年度 2013
  • 页码 212 p.
  • 总页数 212
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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