Fourteen progenies of 2 year-old half-sib Toona ciliata var pubescen derived from 4 provenances in Jiangxi province were used to evaluate their traits and selected by R-factor method and decision making of multi-objective situation. The results showed that significant differences in both the different provenances and families were observed in their traits of diameter, height, height to diameter ratio, crown width, crown diameter ratio, under crown height, number of branches and pest resistance, cold resistance index, whose genetic variation coefficients were at 1.75% - 52.73%, and their provenance and family heritability were at 0.21- 0.86, 0.29 - 0.75, respectively. Based on combination of the main indexes of diameter, crown width, under crown height, number of branches and resistance index, 4 superior families named No. 1, 2, 5, 9, which all derived from Guanshan Moun- tain Natural Reserve, were screened out.
Journal of Anhui Agricultural University
decision making of multi-objective situation
Toona ciliata var pubescen