Fujian Journal of Agricultural Sciences ›› 2019, Vol. 34 ›› Issue (7): 764-774.doi: 10.19303/j.issn.1008-0384.2019.07.003

• Horticultural Science • Previous Articles     Next Articles

Characterization of Seed-derived Vitis davidii Seedings by Principal Component Analysis

XU Hong-ye, LI Ting, ZANG Yun-xiang, XU Kai, GAO Yong-bin, ZHENG Wei-wei   

  1. College of Agriculture and Food Science, Zhejiang A & F University, Hangzhou, Zhejiang 311300, China
  • Received:2019-02-12 Revised:2019-05-14 Online:2019-07-20 Published:2019-10-14

Abstract: [Objective] To establish a method for evaluating the characteristics of seed-derived Vitis davidii seedlings.[Method] Sixteen characteristics including stem girth, shoot length, leaf chlorophyll content, leaf area, leaf dry and fresh weight, and blade structure of the seedlings were determined for a comprehensive evaluation by principal component analysis.[Result] Significant variations were found on the growth of the seedlings, especially on shoot length, leaf chlorophyll content, and stem girth. The first 6 principal components made up 86.254% of the total contribution. The first principal component was determined by the stem girth, shoot length, chlorophyll content, leaf area, and fresh and dry weights of the leaves; the second principal component by the lengths of midrib, upper lateral vein, lower lateral vein, and downmost vein; and, the third principal component by the leaf width and the angle between upper lateral vein and midrib.[Conclusion] Using the eigenvalues corresponding to the 6 principal components and the ratio of single to extracted principal component, a comprehensive evaluation model for the seed-derived V.davidii seedlings was established. Accordingly, S4 and S35 scored the highest among the specimens. A rapid method to screen V.davidii resources at seedling stage for cultivar selection and new variety breeding had thus become available.

Key words: Vitis davidii, principal component analysis, seedling stage, comprehensive evaluation

CLC Number: 

  • S663.1