关键词: 杂交水稻, 稻米品质, 基因型, 环境, 相关分析

Abstract:

In order to investigate the effects of genotype, environment and genotype interaction with the environment on the gelatinization temperature and amylose content, an experiment was conducted using twenty-four indica hybrid rice varieties in three regional trial spots of the middle and lower reaches of Yangtze River as experimental materials. The results showed that the genotypic and environmental differences of gelatinization temperature and amylose content were extremely significant, and the genotype effect was greater than the environment and interaction between genotype and environment. The authors also analyzed the relationship between gelatinization temperature as well as amylose content and other quality traits. Correlation analysis results showed that gelatinization temperature was significantly negatively correlated with transparency and negatively correlated with amylose content. Amylose content was significantly positively correlated with chalkiness degree and chalky rice rate.

Key words: hybrid rice, grain quality, genotype, environment, correlation analysis