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- W2366478219 abstract "【Objective】 This study is to ascertain the genetic diversity and the genetic relationships of dateplum(Diospyroslotus) germplasm resources.【Method】 21 morphological traits of 24 dateplum accessions preserved in the National Field Genebank for Persimmon were observed. According to the method of linkage between groups, cluster analysis was carried out by PASW statistics 18.0 software. 【Result】 24dateplum accessions could be divided into 5 types while the average Euclidean distance was 10. GroupⅠ,GroupⅡ, GroupⅢ, GroupⅣ, and GroupⅤ, including 8(which could be further grouped into two subclusters), 3,10,2 and 1 accessions, respectively. Different degrees of diversity exhibited in different traits. The most obvious variation coefficient, which reached 169.40%, was of the rust of fruit surface,then seed's shape(66.26%). The smallest variation coefficient was of the sepal size(13.67%). The highest diversity index of the 16 qualitative characters was in seed plumpness(1.908), while the lowest one in fruit shape(0.547); The highest diversity index of the 5 quantitative characters was in seed number per fruit(0.687), and the lowest one in distance between the top 1 and top 2 buds(0.438). 【Conclusion】 There is obvious variation among dateplum germplasm resources, and genetic diversity is abundant. Dateplum can be at least divided into oblate fruit type, round fruit type and obround fruit type, meanwhile, each of them can be divided into seedless fruit type and seedy fruit type." @default.
- W2366478219 created "2016-06-24" @default.
- W2366478219 creator A5041130133 @default.
- W2366478219 date "2014-01-01" @default.
- W2366478219 modified "2023-09-25" @default.
- W2366478219 title "Cluster analysis based on morphological traits of dateplum(Diospyros lotus) germplasm resources" @default.
- W2366478219 hasPublicationYear "2014" @default.
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