摘要
2018年10月对营造在福建省邵武市二都国有林场的杉木第3代种子园家系子代幼林的树高、胸径和材积进行测定。通过分析其生长性状指标,筛选速生型优良杉木家系。结果表明:5年生杉木树高、胸径和材积3个生长性状指标家系间差异极显著,且表现出较高的遗传力和中等的变异程度。以材积生长性状为依据,采用比较选择法优选出8个幼龄期生长表现良好的杉木家系,其树高、胸径和材积的平均值比对照分别提高19.01%、22.36%和75.57%。
Height,diameter,volume of young chinese fir family plantation on the third generation seed orchard in Erdu Forest Farm of Shaowu City in Fujian Province were determined and analysed in October 2018.Through the analysis of its growth characters,the fast-growing fine chinese fir families were selected.The results showed that the three main traits of growth(H,D,V)for chinese fir with 5-year-old were significant differences(α=0.01)on each trait of the families,and their repeated ability were high and their variation coefficient were middle.8 quick-growing families in young stand have been selected by comparison selected method based on volume,which H,D and V increased 19.01%,22.36%and 75.57%to experiment CK respectively.
作者
林阳峰
LIN Yangfeng(Shaowu City Forestry Bureau of Fujian Province,Shaowu 354000,Fujian,China)
出处
《福建林业科技》
2020年第1期19-21,35,共4页
Journal of Fujian Forestry Science and Technology
基金
中央级公益性科研院所基本科研业务费专项(主要用材树种优质高抗良种选育研究,CAFYBB2017ZA001-1)。
关键词
杉木
第3代种子园
子代
生长性状
遗传变异
chinese fir
third generation orchard
progeny
traits of growth
genetic variation
