粳稻穗型性状与谷粒性状的相关性研究

Research on the Correlation between Panicle Type Traits and Grain Traits of Instant Rice

以247份粳稻品种为试材,分析了穗型性状与谷粒性状间的相关性。结果表明,8个性状变异系数在4.8%~31.2%,穗型性状、谷粒性状中各性状平均变异系数分别为22.2%、7.8%。粒型因子、粒重因子、粒数因子、结实因子、穗长因子是影响粳稻品种穗型性状和谷粒性状综合表现的主要因子。穗型性状、谷粒性状间存在复杂相关性。同时,粳稻直立穗型、半直立穗型、弯曲穗型品种具有不同的穗型性状和谷粒性状。

This study used 247 japonica rice varieties as test materials to analyze the correlation between panicle type traits and grain traits.The results showed that the coefficient of variation for 8 traits ranged from 4.8%to 31.2%,and the average coefficient of variation for each trait in panicle and grain traits were 22.2%and 7.8%,respectively.Grain shape factor,grain weight factor,grain number factor,seed setting factor,and panicle length factor are the main factors affecting the comprehensive performance of panicle type and grain traits in japonica rice varieties.There is varying degrees of complex correlations between ear type traits and grain traits.Meanwhile,the upright panicle type,semi upright panicle type,and curved panicle type varieties of japonica rice have different panicle type and grain characteristics.