| 切花小菊41 个品种花粉量的测定与散粉特性分析 |
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| 引用本文： | 王小光,房伟民,陈发棣,滕年军.切花小菊41 个品种花粉量的测定与散粉特性分析[J].园艺学报,2013,40(4):703. |
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| 作者姓名： | 王小光 房伟民 陈发棣 滕年军 |
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| 作者单位： | （南京农业大学园艺学院，南京 210095） |
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| 基金项目： | 教育部新世纪优秀人才支持计划项目，国家自然科学基金项目，江苏省自然科学基金项目 |
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| 摘 要： | 研究了41 个切花小菊品种的散粉特性及影响散粉量的关键指标，旨在为培育散粉少或不散
粉切花小菊奠定基础。结果发现：（1）供试的切花小菊品种每花序管状花数的变化范围为85.6 ~ 320.2 个，
绝大多数品种单花花药数为5 枚，花药含粉量变幅为0 ~ 1 017 粒，花序含粉量变幅为0 ~ 807 840 粒；（2）
9 个品种未散粉（其中8 个品种的花药内有花粉，但花药不开裂，仅‘Kingfisher’一个品种花药内没有
花粉），11 个品种散粉量较少，9 个品种散粉量中等，12 个品种散粉量较多。应用聚类分析分别对各品种
花药含粉量和花序含粉量进行了评价，将花粉量聚类为多、中等、少、无4 类，其中，中等和少的品种
占80%。试验结果表明，切花小菊散粉量不仅与花序中管状花数和花药含粉量成正比，而且与花药开裂
速度和开裂程度成正比。
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| 关 键 词： | 切花小菊 花药开裂 花粉量 散粉特性 |
Determination of Pollen Quantity and Features of Pollen Dispersal for 41 Spray Cut Chrysanthemum Cultivars |
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| WANG Xiao-Guang,FANG Wei-Min,CHEN Fa-Di,TENG Nian-Jun-.Determination of Pollen Quantity and Features of Pollen Dispersal for 41 Spray Cut Chrysanthemum Cultivars[J].Acta Horticulturae Sinica,2013,40(4):703. |
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| Authors: | WANG Xiao-Guang FANG Wei-Min CHEN Fa-Di TENG Nian-Jun- |
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| Institution: | （College of Horticulture，Nanjing Agricultural University，Nanjing 210095，China） |
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| Abstract: | In this study，feature of pollen dispersal and the key factors influencingi quantity of pollen
dispersal of 41 spray cut chrysanthemum cultivars were systematically investigated，with an aim to
establish foundation for less-dispersing pollen or non-dispersing pollen cultivars breeding. The results
showed that：The number of disk floret per inflorescence，anthers per flower，pollen quantity per anther and
the pollen quantity per inflorescence were observed among the tested cultivars，which were estimated to be
85.6–320.2 disk floret per inflorescence，5 anthers per flower in the vast majority of cultivars，0–1 017
grains per anther，0–807 840 grains per inflorescence respectively；There were 9 non-dispersing pollen
cultivars（the anthers of 8 cultivars have pollens but no cracking，while only‘Kingfisher’has no pollens），
11 less-dispersing pollen cultivars，9 moderate quantity of pollen dispersal cultivars and 12 high quantity
of pollen dispersal cultivars among them. Clustering analysis was applied to analyse the pollen quantity
per anther and pollen quantity per inflorescence that were grouped into four types：Vast，moderate，a few，
none，according to pollen quantity. 80% of tested cultivars are belonged to‘moderate’and‘a few’groups.
All the results suggest that not only is the quantity of pollen dispersal of spray cut chrysanthemum
positively related to the number of disk floret per inflorescence and pollen quantity per anther，but also it is
positively related to the speed and degree of anther cracking. |
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| Keywords: | spray cut chrysanthemum anther dehiscence pollen quantity pollen dispersal characteristics |
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