江苏农业学报2026，Vol.42Issue(1)：1-7,7.DOI:10.3969/j.issn.1000-4440.2026.01.001
粳稻籽粒硬度与品质性状的相关性分析
Correlation analysis in japonica rice grain hardness and quality traits
摘要
Abstract
To clarify the distribution characteristics of grain hardness index in different types of japonica rice and its relationships with cooked rice hardness,palatability score,and physicochemical properties of japonica rice,this study used 27 japonica rice cultivars to determine 25 indicators,including grain hardness index,physicochemical properties,Rapid Visco Analyzer(RVA)profile characteristics,and palatability score.The distribution characteristics of grain hardness in-dex in different types of japonica rice and the correlations between grain hardness index and quality traits of japonica rice were analyzed.The results showed that the distribution range of grain hardness index was widest in waxy japonica rice cultivars,while it was most concentrated in ordinary japonica rice.The average grain hardness index followed the order:waxy japonica rice＜semi-glutinous japonica rice＜ordinary japonica rice.The grain hardness index of japonica rice was highly significantly positively correlated with cooked rice hardness,amylose content,peak viscosity,hot paste viscosity,cold paste viscosity,breakdown value,peak time,and setback value,and was significantly positively correlated with grain length and head rice yield.It was highly significantly negatively correlated with palatability score,appearance of cooked rice,stickiness of cooked rice,balance of cooked rice,gel consistency,transparency grade,chalky grain rate,and chalkiness degree,and was significantly negatively correlated with broken rice rate.These correlations were more pronounced in semi-glutinous japonica rice cultivars.The grain hardness index of japonica rice showed significant correlations with eating quality,appearance quality,and processing quality.Research on grain hardness is beneficial for breeding japonica rice cultivars with good eating quality,appearance quality,and processing quality,providing a reliable theoretical basis for quality breeding of japonica rice and accelerating the development of superior-tasting japonica rice cultivars.关键词
籽粒硬度指数/米饭硬度/食味品质/加工品质Key words
grain hardness index/hardness of cooked rice/eating quality/processing quality分类
农业科技引用本文复制引用
岳红亮,孙一标,施伟,朱国永,王爱民,唐红生,缪一宏,孙明法,代金英,赵绍路,刘凯,宛柏杰,朱静雯,张梦龙,程新杰,胡蕾..粳稻籽粒硬度与品质性状的相关性分析[J].江苏农业学报,2026,42(1):1-7,7.基金项目
2022年度江苏沿海地区农业科学研究所科研基金项目(YHS202205) （YHS202205）
江苏省农业科技自主创新基金项目[CX(24)3095] （24）
江苏省种业振兴揭榜挂帅项目[JBGS(2021)040] （2021）
