粳稻食味相关品质性状的变异与相关性研究

为研究粳稻品种食味及相关品质性状的变异特点及相关性，对62份粳稻品种食味值、部分理化品质性状、淀粉的黏滞度进行分析。结果表明，62份粳稻品种测试性状变异系数在3.96%～90.00%,Shannon-Wiener多样性指数在1.279～2.038,62份粳稻品种在品质性状上可划分到4个类群。品种食味值、部分理化性状、RVA谱特征值之间存在显著或极显著的相关性，同时构建了3个回归方程。本研究结果为粳稻优质食味品种选育与性状选择提供了依据。

Variation and correlation of taste related quality traits in Japonica Rice

In order to study the variation and correlation of taste and related quality traits of Japonica rice varieties,The eating value, some physical and chemical quality characters and starch viscosity of 62 japonica rice varieties were analyzed.The results show that,The coefficient of variation of 62 japonica rice varieties was 3.96% ~ 90.00%,Shannon Wiener diversity index ranges from 1.279 to 2.038,62 japonica rice varieties can be In order to study the variation and correlation of taste and related quality traits of Japonica rice varieties,The eating value, some physical and chemical quality characters and starch viscosity of 62 japonica rice varieties were analyzed.The results show that,The coefficient of variation of 62 japonica rice varieties was 3.96% ~ 90.00%,Shannon Wiener diversity index ranges from 1.279 to 2.038,62 japonica rice varieties can be divided into 4 groups with different quality forms.There is a significant or extremely significant correlation among the taste value, some physical and chemical properties and RVA spectrum characteristic values of the varieties,At the same time, four regression equations were constructed.The results of this study provide a basis for the breeding and character selection of Japonica Rice Varieties with good quality and taste.