HUANG Ting,ZAO Shaoying,QIN Ken,et al.Quality Evaluation of Fresh Fruit of Lycium barbarum Based on Principal Component Analysis[J].Northern Horticulture,2019,43(07):132-139.[doi:10.11937/bfyy.20182715]
基于主成分分析的枸杞鲜果品质评价核心指标筛选
- Title:
- Quality Evaluation of Fresh Fruit of Lycium barbarum Based on Principal Component Analysis
- Keywords:
- Lycium barbarum fruit; quality evaluation; evaluation index; principal component analysis; cluster analysis; core indicators
- 文献标志码:
- A
- 摘要:
- 为筛选枸杞鲜果品质评价核心指标，以宁夏枸杞主栽品种“宁杞7号”“宁杞5号”以及课题组选育的新品系‘14-02-02-20’‘14-Z44’‘14-Z168’‘14-402’‘14-401’‘14-16-10-17’‘16-23-7-8’‘16-23-8-10’为试验材料，采用主成分分析、聚类分析法对10个品种（系）枸杞鲜果的16个品质指标如果柄拉力、百粒质量、硬度、弹性、胶粘性、咀嚼性、内聚性、色差a*、可溶性固形物、总糖、可滴定酸、维生素C、枸杞多糖、甜菜碱、黄酮、固酸比进行筛选。结果表明：利用主成分分析法筛选出6个核心指标分别为硬度、百粒质量、甜菜碱、胶粘性、总糖、色差a*，与聚类分析得出的硬度、百粒质量、枸杞多糖、甜菜碱、胶粘性、可滴定酸、总糖、色差a*八类指标基本一致。筛选出适宜鲜食的较优枸杞品种（系）为‘14-401’‘14-Z44’“宁杞5号”‘14-02-03-20’。
- Abstract:
- The core indicators for evaluating fresh fruit quality of Lycium barbarum L.were screened.The main cultivars of Lycium barbarum L.in Ningxia,‘Ningqi No.7’‘Ningqi No.5’,and the new strains ‘14-02-03-20’‘14-Z44’‘14-Z168’‘14-402’‘14-401’‘14-16-10-17’‘16-23-7-8-10’ were selected as experimental materials.The principal component analysis and cluster analysis were used to analyze 10 varieties (strains).Sixteen quality indicators of Lycium barbarum fresh fruit were screened,such as fruit stalk pull,100-grain weight,hardness,elastic,gum stickiness,chewiness,cohesion,color difference a*,soluble solids,total sugar,titratable acid,vitamin C,Lycium barbarbarum polysaccharide,betaine,flavonoids and solid-acid ratio.The results showed that the six core indices were hardness,100-grain weight,betaine,gum stickiness,total sugar and color difference a*,which were basically consistent with the eight indices of hardness,100-grain weight,Lycium barbarbarum polysaccharide,betaine,gum stickiness,titratable acid,total sugar and color difference a*.The better varieties (strains) of Lycium barbarum suitable for fresh food were selected as ‘14-401’‘14-Z44’‘Ningqi No.5’‘14-02-03-20’.
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备注/Memo
第一作者简介：黄婷（1984-），女，硕士，助理研究员，研究方向为枸杞育种。E-mail:ht20180312@163.com.责任作者：秦垦(1971-)，男，本科，研究员，研究方向为林木遗传育种。E-mail：qinken7@163.com.基金项目：宁夏农林科学院科技创新引导资助项目（NKYJ-18-01）；宁夏回族自治区枸杞育种专项资助项目(2013NYYZ0102)。收稿日期：2018-10-11