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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (6): 175-178.

• 林学 园艺 园林 • 上一篇    下一篇

荷花花粉的形态研究

孔德政,李 晨,赵海舰,贺 丹   

  • 收稿日期:2008-12-22 修回日期:2009-01-21 出版日期:2009-03-20 发布日期:2009-03-20

Study on Pollen Morphology of Nelumbo nucifera

  • Received:2008-12-22 Revised:2009-01-21 Online:2009-03-20 Published:2009-03-20

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摘要： 摘要：利用扫描电镜对10个荷花品种的花粉进行了观察与测量，对观察结果进行了主成分分析。结果表明，荷花花粉形状为近球形，大小为极轴长37.5～50.9μm，赤道轴长41.6～51.3μm，具3条萌发沟，外壁纹饰为脑纹状或皱波状。经主成分分析前5个主成分累积贡献率达96.3789%，已经代表了原始性状的大部分信息，选出前5个主成分为新选主成分。在孢粉分析时各性状指标按重要性依次为极轴长（P）、体积大小指数、赤道轴长（E）、沟长（L）、P/E、脊宽、L/P、外壁纹饰、沟宽（W）、极面观形状。

关键词: 粮食作物, 粮食作物, 比较优势, 分析系统

Abstract: Abstract: The pollen grains of 10 cultivars in Nelumbo nucifera Gaertn were observed under SEM(Scan Electronic Microscope) and had the principal component analysis with the data.The results showed that they were subglobose.The length between poles varied from 37.5～50.9μm and diamerter of the equator ranged 41.6～51.3μm.They all had three germinal furrows.The cover was embellished with cerebroid or rugulate.With the principal component analysis result, the accumulative contribution rate of the former five principal components reach to 96.3789%. So we choose the former five principal compoents as the new principal components.The characters in importance one by one are the length between poles(P),volume index,diamerter of the equator(E),the length of germinal furrow(L),P/E, distance of lirae, style of exine ornamentation, fossa width and shapes in polar view in the analysis of palynology.