基于主成分分析综合评价6个杂交授粉组合的马家柚果实品质  

Comprehensive evaluation on fruit quality of six hybrid pollination combinations of Majiayou based on the principal component analysis

作　　者：徐宸宇 唐启正 刘慧宇 吴巨勋 伊华林[1] XU Chenyu;TANG Qizheng;LIU Huiyu;WU Juxun;YI Huain(College of Horticulture&Forestry Sciences of Huazhong Agricultural University/National Key Laboratory for Germplasm Innovation&Utilization of Horticultural Crops,Wuhan 430070,Hubei,China)

机构地区：[1]华中农业大学园艺林学学院·果蔬园艺作物种质创新与利用全国重点实验室,武汉430070

出　　处：《果树学报》2024年第2期282-293,共12页Journal of Fruit Science

基　　金：国家现代农业(柑橘)产业技术体系专项(CARS-26);抚州市揭榜挂帅项目(XMBH00091)。

摘　　要：【目的】探究不同杂交授粉组合马家柚果实营养成分特征性状,综合评价杂交果实品质,为选择适宜的马家柚授粉父本提供数据支撑。【方法】通过品质指标变异系数分析、相关性分析和主成分分析对2020年广丰地区6个杂交组合马家柚果实样品共18项品质性状指标进行综合评价。【结果】单果质量、果皮厚度、蔗糖含量、柠檬酸含量等在内的共18项品质性状指标间差异显著,变异系数为6.35%~114.45%。通过主成分分析提取到5个主成分,累积贡献率可达85.001%,分别反映了果实糖酸、色泽、营养、外观、香气及苦味品质指标。其中,果实可溶性糖和有机酸各组分含量以及甜度值为评价杂交授粉马家柚果实品质的重要因子。【结论】主成分因子得分及排序表明鸡尾葡萄柚为马家柚的最佳授粉父本。【Objective】Different hybrid pollination combinations show significant differences in fruit quality of Majiayou.However,research on cross pollination of Majiayou mainly focuses on the evalua-tion and analysis of conventional quality.There are few studies that comprehensively evaluate the sec-ondary metabolites such as important flesh color indicators like lycopene,flavor indicators like naring-in,and aroma substances based on variety characteristics.In order to provide valuable information and evaluation tools for breeders,a total of 18 pomelo fruit quality traits were used for comprehensive evalu-ation to select suitable male parents for pollination and provide data support for production.【Methods】The fruit setting rate,important secondary metabolites like lycopene and naringin,and major volatile substances of six hybrid pollination combinations of Majiayou were examined,and then the early data on 18 quality traits including single fruit weight,peel thickness,number of seeds,soluble solids,titrat-able acid,sucrose,glucose,fructose,citric acid,malic acid and sweetness value were used for coeffi-cient of variation(CV)analysis,correlation analysis,principal component analysis(PCA),and compre-hensive score ranking to evaluate the fruit quality traits of different hybrid pollination combinations in Majiayou.【Results】There were significant differences in the 18 quality traits of fruit among different hybrid pollinated combinations of pomelo,with a coefficient of variation ranging from 6.35%to 114.45%.Among them,the highest fruit setting rate hybrid combination was Majiayou×Tuyou No.4(T4)of 55.3%,while Majiayou×Cocktail grapefruit(JW)had the lowest fruit setting rate of 22.9%.The contents of lycopene,naringin,and volatile substances in the juice cells of different hybrid pollina-tion combinations of pomelo were measured.The results showed that different male parents had a sig-nificant impact on the secondary metabolites in the juice cells of Majiayou.Among them,the contents of lycopene in Majiayou×Tuyou N

关 键 词：柑橘 马家柚 杂交授粉 主成分分析 品质提升 

分 类 号：S666.3[农业科学—果树学]