西南林业大学学报2012，Vol.32Issue(4)：22-25,4.DOI:10.3969/j.issn.2095-1914.2012.04.005
杉木半同胞子代测定及优良家系选择
Half-Sib Progeny Test and Superior Cunninghamia lanceolata Family Selection
摘要
Abstract
The indexes including tree height, DBH and standing volume of 72 half-sib progeny families of Cunninghamia lanceolata were measured for lyr, 2yr, 3yr, 4yr and 25yr old trees that were sampled from Xishan Forest Farm in Rong' an County. The results showed that there were significant or extremely significant differences in these index values among most of the families. Most of the growth traits were extremely significantly and positively correlated with the ages. The growth traits of the most families were stable and highly consistent along the age increment. However, there was great change in these growth indexes between the juvenile and mature stages of some families, showing the instability along the age increment. According to the growth index values of 25yr old mature stage, 27 half-sib progeny families including Liu241 , Liu244, Liu220, Shankou10, Guangyun171 with highly integrated gain were screened out, whose highest gains in tree height, DBH and volume was 26. 29% , 62. 68% and 110.42% respectively.关键词
杉木/半同胞家系/家系选择Key words
Cunninghamia lanceolata/ half-sib family/ family selection分类
农业科技引用本文复制引用
戴俊,罗启亮,劳广杰,蒋丽秀,黄开勇,梁瑞龙..杉木半同胞子代测定及优良家系选择[J].西南林业大学学报,2012,32(4):22-25,4.基金项目
广西“十一五”林业重大科技项目(桂林科字[2010]3号)资助. （桂林科字[2010]3号）
