Correlation and Cluster Analysis on the Quality Characters of New Middle-ripe Japonica Rice Varietie

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[Objective] This study aimed to analyze the quality characteristics of the new middle-ripe japonica rice varieties in Jiangsu Province. [Method] Fourteen new rice varieties included in the Middle-ripe Japonica Rice Regional Test in 2011 were selected as the materials. Correlation analysis and cluster analysis were carried out on their quality traits. [Result] The rice cultivars possessed stable characteristics, which were difficult to be further improved. In addition, their quality traits had extremely complicated relationships, and the differences were significant between different groups. [Conclusion] This study will provide reference for improving the quality traits of japonica rice. [Objective] This study aimed to analyze the quality characteristics of the new middle-ripe japonica rice varieties in Jiangsu Province. [Method] Fourteen new rice varieties included in the Middle-ripe Japonica Rice Regional Test in 2011 were selected as the materials. Correlation analysis and cluster analysis were carried out on their quality traits. [Result] The quality of the rice cultivars possessed stable characteristics, which were difficult to be further improved. In addition, their quality traits had extremely complicated relationships, and the differences were significant between different groups. [Conclusion] This study will provide reference for improving the quality traits of japonica rice.
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