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本文以 19个杂交中稻品种为材料 ,研究了杂交中稻强再生力品种的冠层特征。结果表明 :杂交中稻品种间再生力取决于头季稻的叶粒比 ,强再生力品种头季稻单位颖花的绿叶面积占有量大 ,其光合产物满足头季稻高产之后剩余量较多 ,为再生稻高产提供了重要的物质基础。头季稻品种间着粒数分别与其单位颖花的绿叶面积占有量及再生力呈极显著负相关关系 ,可将头季稻着粒数作为杂交中稻再生力的判断标准
In this study, 19 hybrid mid-rice cultivars were used as materials to study the canopy characteristics of high-regenerative hybrid rice varieties. The results showed that the regenerative ability of hybrid mid-season rice varieties was dependent on the leaf-grain ratio of the first season rice, while that of the first-season strong-regenerant hybrid rice spikes was large, It provided an important material basis for the high yield of ratooning rice. The grain number of the first season rice was very significantly negatively correlated with the share of the green leaf area of the unit spike and the regeneration ability, and the grain number of the first season rice could be used as the criterion of the regeneration of the hybrid mid-season rice