大麦与谷类科学2025，Vol.42Issue(2)：15-19,5.DOI:10.14069/j.cnki.32-1769/s.2025.02.003
膜下滴灌水稻品质性状的相关性及主成分分析
Correlation and Principal Component Analysis of Quality Traits of Rice Under Mulched Drip Irrigation
摘要
Abstract
To provide reference for variety selection and quality improvement of rice under mulched drip irrigation,this study analyzed 11 main quality traits using 25 rice varieties(lines)as materials.The results showed that there were significant differences in quality traits among different varieties,with coefficients of variation of chalkiness,chalky grain rate,transparency,and head rice rate exceeding 20％(chalkiness and grain rate exceeding 59％).There is a correlation between traits,such as a significant positive correlation between milled rice rate and brown rice rate(r=0.637),a significant positive correlation between head rice rate and grain length(r=0.815),and a significant negative correlation between protein and amylose(r=-0.901),as well as taste value(r=-0.881).Principal component analysis showed that the total variance contribution rate of the first three principal components reached 82.486％,with the first principal component(taste factor)contributing 33.940％,the second principal component(grain size factor)contributing 25.571％,and the third principal component(rice milling quality factor)contributing 22.975％.Therefore,in variety breeding,the chalky grain rate and chalkiness should be reduced on the basis of stable milled rice rate,and the amylose content should be appropriately increased to enhance palatability,in order to achieve the breeding goal of improving rice quality.关键词
水稻/滴灌/品质性状/相关性/主成分分析Key words
Rice/Drip irrigation/Quality traits/Correlation/Principal component analysis分类
农业科学引用本文复制引用
朱江艳,王圣毅,郝玉峰,李丽,杨佳康,赵双玲,柯璐瑶,李高华..膜下滴灌水稻品质性状的相关性及主成分分析[J].大麦与谷类科学,2025,42(2):15-19,5.基金项目
兵团重点领域科技攻关计划(2023AB017-01). （2023AB017-01）
