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以程氏籼粳分类和俞履圻的变种变型分法对 2 0份云南光壳稻品种及籼粳测验种 0 2 42 8、Dular进行籼粳亚种、变种变型分类 ,并对其形态性状进行相关分析。结果表明 ,2 0份云南光壳稻包括 1 3个变种 6 9个变型 ,以偏粳型品种占较高比例 ,籼粳分类品种中偏粳型品种的广亲和性较好。籼粳分类性状间及其与其他形态性状尤其是花药长度、穗下节长和株高存在极显著的相关性 ,推断原始的云南光壳稻的籼粳分化取决于温度 ,并与纬度和海拔密切相关
The morphological traits and indica-japonica subspecies and indica-japonica subspecies (Oryza sativa subsp. Indica) were classified into 20 Oryza sativa varieties and indica-japonica varieties 0 2 42 8, analysis. The results showed that 20 Yunnan wild husk rice varieties included 69 varieties of 13 varieties, and the partial japonica varieties had a higher proportion of japonica varieties. The wide compatibility of japonica varieties with japonica-japonica varieties was good. There were extremely significant correlations between the taxonomic traits of indica and japonica and other morphological traits, especially length of anther, node length of ear and plant height. It was concluded that the indica-japonica differentiation of the original Yunnan husk rice depends on the temperature and is related to latitude and altitude closely related