西北农业学报2026，Vol.35Issue(3)：466-470,5.DOI:10.7606/j.issn.1004-1389.2026.03.007
紫色叶用莴苣色差参数及花青素含量的相关性分析
Correlation between Color Parameters and Anthocyanin Content in Purple Lettuce
摘要
Abstract
Leaf color is acrucial phenotypic trait for breeding and quality evaluation of lettuce varie-ties.In this study,purple lettuce was used as the study object,and the correlation between leaf color parameters(lightness L*,redness a*,yellowness b*,chroma C*,saturation S*)and anthocyanin content was systematically analyzed,aiming to establish a rapid detection method for detecting antho-cyanin content in purple lettuce based on color analysis.The results showed that the anthocyanin con-tent among different lettuce varieties varied significantly(ranging from 91.54 to 528.42 μg·g-1),ex-hibiting abundant purple gradient variation.As the leaf color changed from light purple to dark pur-ple,the L* value continuously decreased,the b* value first decreased and then increased,and the a*value showed a fluctuating trend of increase-decrease-increase.Correlation analysis demonstrated that anthocyanin content was significantly positively correlated with the a* value(r=0.866)and with the b* and C* values(r=0.800).Comprehensive analysis showed that the a* value could serve as a key color indicator for predicting anthocyanin content in purple lettuce.关键词
紫色叶用莴苣/花青素/色差参数/相关性Key words
Purple lettuce/Anthocyanin/Color difference parameters/Correlation引用本文复制引用
王文珠,刘明霞,侯栋,崔银花,罗涛..紫色叶用莴苣色差参数及花青素含量的相关性分析[J].西北农业学报,2026,35(3):466-470,5.基金项目
甘肃省科技计划重大专项(24ZDNA005) （24ZDNA005）
甘肃省技术创新引导计划(25CXNA0270) （25CXNA0270）
金昌市重点科技计划(2024NY016z).Major Scientific and Technological Plan of Gansu Province(No.24ZDNA005) （2024NY016z）
Technological Innovative Guidance Plan of Gansu Province(No.25CXNA0270) （No.25CXNA0270）
Key Scientific and Technological Plan of Jinchang City(No.2024NY016z). （No.2024NY016z）
