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7种李品种果实品质分析及评价

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[目的]综合评价四川地区7种李果实品质差异,为优质李品种选育提供参考。[方法]采用主成分分析法,以'风味玫瑰''味帝''桃形李''大白李''脆蜜李''五月脆'和'脆红李'为材料,分析单果重、果实横纵径、果形指数等外观品质和可食率、可溶性固形物、可滴定酸、可溶性糖、维生素C、可溶性蛋白等营养品质差异。[结果]7个李品种外观与内在品质均存在较大差异,李单果重范围为24。26~127。22g,果形指数范围在0。78~1。09,果形接近圆形,果实硬度范围为9。37~17。43 kg/cm2,可溶性糖含量范围为8。96%~12。16%,可滴定酸含量范围为0。42%~1。18%,可溶性固形物含量范围为10。45%~14。09%,维生素C含量范围为0。36~3。03 mg/100 mL,可溶性蛋白含量范围为0。85~1。23 g/kg,糖酸比和固酸比范围分别为8。65%~25。15%、9。13%~29。95%。通过主成分分析显示,不同指标之间存在一定相关性,前4个主成分的累计贡献率达88。936%。[结论]7种李果实品质综合表现为'味帝'最优,其后依次为'风味玫瑰''桃形''五月脆''脆红李''脆蜜李'和'大白李'。
Fruit Quality Analysis and Evaluation of Seven Plum Varieties
[Objective]A comprehensive evaluation of the differences in fruit quality among seven plums in Sichuan region was carried out to provide reference for the selection and breeding of high-quality plum varieties.[Method]Principal component analysis was used to analyze the differences in appearance quality such as single fruit weight,fruit transverse and longitudinal diameters,fruit shape index,and nu-tritional quality such as palatability,soluble solids,titratable acid,soluble sugar,vitamin C,and soluble protein of'Fengweimeigui','Weidi','Taoxingli','Dabaili','Cuimili','Wuyuecui',and'Cui-hongli'as materials.[Result]There were significant differences in appearance and internal qual-ity among the seven plum varieties.The single fruit weight,fruit shape index,hardnesses,edible rates,soluble sugar,the soluble solids,titratable acid,vitamin C,soluble protein,sugar-acid and solid-acid ratios are 24.26-127.22 g,0.78-1.09,9.37-17.43 kg/cm2,8.96%-12.16%,0.42%-1.18%,10.45%-14.09%,0.36-3.03 mg/100 mL,0.85-1.23 g/kg,8.65%-25.15%,9.13%-29.95%.According to principal component analysis,there is a certain correlation between different indexes,with the cumula-tive contribution of the first four principal components reached 88.936%.[Conculsion]The combined performance of the seven plum fruit qualities was the best for'Weidi',followed by'Fengweimeigui"Taox-ingli"Wuyuecui"Cuihongli"Cuimili',and'Dabaili'.

fruit qualityprincipal component analysis(PCA)plum

杨昳玥、朱玲瑶、王矞璐、金铮华、周馨雅、李嘉昊、刘沛媛、廖玲

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四川农业大学园艺学院,成都 611130

果实品质 主成分分析

2024

四川农业大学学报
四川农业大学

四川农业大学学报

CSTPCD北大核心
影响因子:0.657
ISSN:1000-2650
年,卷(期):2024.42(6)