水稻形态解剖性状间的相关分析研究

对35个水稻品种穗颈节间、叶片、叶鞘、一次枝梗和二次枝梗5个部位的形态解剖性状特征及其相关性进行了研究。结果表明：(1)水稻品种的绝大多数形态解剖性状在品种间存在显著或极显著差异；(2)不同部位维管柬性状的差异较大，叶片、叶鞘的导管面积大于韧皮部面积，穗颈节间、一次枝梗、二次枝梗的韧皮部面积大于导管面积；(3)穗颈节间、一次枝梗、叶片、二次枝梗、叶鞘5个部位的5组一级性状组间的典型相关分析表明，各性状组两两间均有典型相关系数达显著或极显著水平，各性状组形态解剖性状关系紧密。

Analysis on the Correlation among Morphological Anatomic Traits in Rice

The morphological anatomic traits in the first internode,flag leaf,leaf sheath, primary panicle and secondary panicle of different rice varieties and the correlation among these traits were studied .The results showed that:(1) There was significant difference in morphological anatomical traits of different rice varieties at 0.05 level or 0.01 level,respectively. (2) The area of duct is bigger than that of phloem in flag leaf and leaf sheath , but smaller in the first internode, primary branch and secondary branch. (3) Canonical correlation analysis showed that morphological anatomical traits among the first internode,flag leaf ,leaf sheath,primary branch and secondary branch were in significant correlation with one another at 0.05 or 0.01 level,respectively.