Journal of Tianjin Agricultural University ›› 2021, Vol. 28 ›› Issue (2): 12-17.doi: 10.19640/j.cnki.jtau.2021.02.003

• Researches and Scientific Notes • Previous Articles     Next Articles

Evaluation and selection of main characters of oil peony ‘Feng Dan' based on principal component analysis

Zhang Weilong1, Yang Jinghui1,*, Song Ke1, Jiang Xin1, Gao Wei1, Zhang Chao2, Feng Guohua3   

  1. 1. College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300392, China;
    2. Tianshi College, Tianjin 301700, China;
    3. Tianjin Municipal Highway Bureau, Tianjin 300384, China
  • Received:2019-10-15 Online:2021-06-30 Published:2021-07-26

Abstract: In order to establish a high-yield evaluation model of oil peony and select the high-yield single plant, the 10 main characters of 85 oil peony ‘Feng Dan' were analyzed with the principal component analysis method. The results showed that the total kernel weight was extremely significantly positively related to the total kernel number (0.87), and significantly positively related to the number of aggregated capsules (0.51) and effective pods (0.51). The 10 ornamental characteristics indicated that the accumulative contribution rate of 4 principle components including kernel factor, growth factor, abortion factor, and fruit shape factor reached 84.52%. Based on the model of high-yield established with the contribution proportion of 4 principal components as the weight coefficient, 85 oil peony could be classified into 5 grades, and extremely high-yield A66, high-yield A23, A44 were selected.

Key words: principal component analysis, oil peony, comprehensive evaluation, correlation analysis.

CLC Number: