Abstract:
In order to screen excellent varieties suitable for Jiyuan cultivation, enrich the local strawberry variety structure and promote new varieties. Cluster analysis and principal component analysis were conducted on 18 agronomic traits of 15 strawberry varieties. The results showed that when the cluster analysis interval was 5, 15 strawberry varieties were divided into three groups. The first group represented by ’Huayan’ had 7 varieties with the low yield group belonged to low yield group. The second group represented by ’Ningyu’ had 4 varieties with the highest yield group belonged to high yield group. The third group represented by ’Jiuxiang’ had 4 varieties with and the yield between the first and second groups and belonged to medium high yield group. The cumulative contribution rate of the first four factors in the principal component analysis reached 84.586%. According to the principal component score and comprehensive score of the varieties, a total of four strawberry varieties suitable for cultivation in the region were selected, namely, ’Ningyu’, ’Shandong No.2’, ’Ganlu’, and ’Sweet Charlie’; Cluster analysis and principal component analysis showed that the strawberry varieties(Ningyu, Shandong No. 2, Ganlu, and Sweet Charlie) in the second group performed the best and were suitable for popularization and cultivation in Jiyuan area.