Author(s): LI Xiao-qiong, SU Yong, GUO Wen-feng, LAN Jun, XIONG Tao, ZHANG Lei, WEN Yuan-guang, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Forestry College of Guangxi University, Guangxi Colleges and Universities Key Laboratory of Forestry Science and Engineering, Forestry College of Guangxi University, Dongmen State Forest Farm of Guangxi, Guangxi Crop Genetic Improvement and Biotechnology Lab, Guangxi Academy of Agricultural Sciences
Pages: 586-592+599
Year: 2015 Issue:  6
Journal: Guangxi Sciences
Keyword:  Eucalyptus; clone; quality; principal component analysis;
Abstract: 【Objective】The multiple characteristics of 39 Eucalyptus clones were comprehensivelyevaluated in order to select excellent clones with fast growth and best timber characteristics and provide scientific reference for superior species selection and breeding of Eucalyptus plantations.【Methods】We compared the quality of these clones and ranked them by variance analysis combined with the principal component analysis(PCA).【Results】The results of variance analysis showed that there were significant differences in height(H),diameter at breast height(DBH),individual volume(SV),live branchesheight(LBH),and stem form(SF)among 39 clones.Based on comprehensive comparisons using PCA method,the top five clones were 567-4,629-3,631-2,600-5and 645-4,respectively;While the clones 649-9,623-3,664-2and 628-3owned single excellent trait(the highest SV or the best SF).【Conclusion】The 5clones with comprehensive excellent quality can be popularized widely because of their faster growth and high form quality,and the 4clones superior in single trait have important values in future breeding and target properties improvement of Eucalyptus.