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植物研究 ›› 2010, Vol. 30 ›› Issue (1): 70-80.doi: 10.7525/j.issn.1673-5102.2010.01.014

• 论文 • 上一篇    下一篇

花莲种质资源形态性状多样性研究

郭宏波1;柯卫东2;李双梅2   

  1. 1.西北农林科技大学生命科学学院,杨凌 712100;2.国家种质武汉水生蔬菜资源圃,武汉市蔬菜科学研究所,武汉 430065
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-01-20 发布日期:2010-01-20
  • 基金资助:
     

Morphological Diversity of Flower Lotus(Nelumbo nucifera Gaertn. ssp. nucifera) germplasms

GUO Hong-Bo;KE Wei-Dong;LI Shuang-Mei   

  1. 1.College of Life Science, Northwest A & F University, Yangling 712100;2.National Garden of Aquatic Vegetable,Wuhan Institute of Vegetable Science,Wuhan 430065
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-01-20 Published:2010-01-20
  • Supported by:
     

摘要: 对从国家种质资源圃中选取的40份花莲种质资源的19个形态性状进行了观察。结果发现花型、花瓣数、雌蕊是否瓣化、雌蕊瓣化程度和根茎颜色与花蕾形状呈显著正相关,其中花型、花瓣数和根茎颜色与花蕾形状呈极显著高度相关。通径分析表明现蕾期对花型有显著正向效应(0.552),其次是花瓣数(0.516)和根茎颜色(0.368)。与花型呈显著负相关的性状有花瓣长(-0.801)、现花期(-0.558)和叶宽(-0.451)。主成分分析显示前四个成分累计贡献率达65.68%。聚类分析将所有材料分为四组。

关键词: 聚类分析, 相关性分析, 形态性状, 中国莲, 通径分析, 花莲

Abstract: The genetic diversity in forty flower lotus germplasms of Nelumbo nucifera Gaertn. ssp. nucifera from Chinese National Garden of Aquatic Vegetable was evaluated using nineteen morphological characters. Among all characters, flower type (FT), number of petals (NP), pistil character, pistil function and rhizome color (RC) exhibited significant positive correlation with figure of floral bud (FB). The correlations of FB with FT, NP and RC were positive and highly significant. The path analysis revealed that days of emerging flower bud (DB) had the highest positive direct effect on FB (0.552), followed by NP (0.516) and RC (0.368). Characters showing highly negative direct effect on FB were petal length (PL) (-0.801), days of emerging first flower (DF) (-0.558) and leaf width (-0.451). Four principal components accounted for 65.68% of the total variability. A cluster analysis based on the morphological characters revealed four continuous groups according to the evolutionary direction.

Key words: Cluster analysis, Correlation coefficient, Morphological characters, Nelumbo nucifera Gaertn. ssp. nucifera, Path analysis, Flower lotus

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