热带农业科学2025，Vol.45Issue(3)：8-15,8.DOI:10.12008/j.issn.1009-2196.2025.03.002
不同油梨品系果实品质特征分析和比较
Analysis and Comparison of Fruit Quality Characteristics of Different Avocado Strains
摘要
Abstract
To explore a method suitable for accurate evaluation of avocado fruit quality,24 important fruit quality traits,such as single-fruit weight,edible rate,soluble sugar,ash,crude protein,total copper,and total zinc,were determined in 12 avocado varieties(lines)from the avocado germplasm resource nursery of the Honghe Tropical Agricultural Institute of Yunnan,and a comprehensive evaluation was conducted.The results revealed that:(1)there were differences in fruit quality traits among the different strains,and the coefficient of variation ranged from 6.9％to 59.1％.(2)principal component analysis revealed that the cumulative contribution rate of the first seven principal components reached 93.02％.(3)different varieties/lines were ranked as Fuerte＞Ⅰ-19-1＞Ⅱ-13-5＞Ⅰ-11-2＞Ⅰ-12-2＞Ⅰ-19-3＞Ⅰ-16-2＞Ⅱ-16-6＞Ⅱ-15-7＞Guiyan10＞Ⅱ-16-4＞Ⅱ-8-1.(4)In the cluster analysis,12 strains were grouped into three categories when the Euclidean distance was 5.0.Class 1 included Ⅰ-19-1,which was a large fruit with a single fruit weight of 601 g.The second group contained Ⅱ-16-6,Guiyan10,Ⅰ-16-2,Ⅰ-12-2,Ⅰ-19-3,Ⅱ-15-7,Ⅰ-11-2,and Ⅱ-8-1.The range of single fruit weights of the avocado accessions in this group was approximately 396～538 g,and they were considered medium fruit.The third class comprises Fuerte,Ⅱ-6-4,and Ⅱ-13-5,which are small fruits with single-fruit weights ranging from 246 to 279 g.(5)The results of the principal component analysis and cluster analysis were basically consistent,and the fruits of Fuerte,Ⅰ-19-1,and Ⅱ-13-5 presented relatively better quality.The results revealed the differences in the fruit quality of 12 varieties(lines)of avocado and established a set of suitable methods for evaluating the fruit quality of avocado,which provides theoretical support for accurate germplasm resource evaluation and new variety breeding.关键词
油梨/品质性状/主成分分析/聚类分析Key words
avocado/quality traits/principal component analysis/cluster analysis分类
农业科技引用本文复制引用
蒙真铖,杨添雁,张建春,祁家柱,岳建伟,邓成菊..不同油梨品系果实品质特征分析和比较[J].热带农业科学,2025,45(3):8-15,8.基金项目
重大科技专项计划(No.202202AE090016-13). （No.202202AE090016-13）
