Final Selection of Half-sib Progeny Superior Families of Cunninghamia lanceolata
Introduced from 14 primary seed orchards nationwide,and established from 1985,84 Cunninghamia lanceolata stands of half-sib progeny were analyzed on 4 ages (5-year,8-year,26-year and 30-year).The results showed that there were significant differences among most family progenies in tree height,DBH and volume at different stages of growth.The growth traits presented stable in juvenile-mature period.According to the volume of 30-year-old families,15 families produced from Guangxi,Guizhou,Hunan and Fujian were finally selected as superior families.The average volume,volume gain and genetic gain of the superior families were more than 0.335 0m3,15.73% and 11.93%,respectively,among which,the average genetic gain of superior families produced from Guangxi was up to 65.52%.
NETL
NSTL
万方数据
维普
