湿地松半同胞家系松脂产量选择研究
李艳 1，吴际友 2，程勇 2，刘球 2，陈明皋 2，潘百红 1，黄明军 2，李志辉 1，黄水清 3

1.中南林业科技大学，湖南长沙 410004；2.湖南省林业科学院，湖南长沙 410004； 3.湖南省汨罗市桃林国有林场，湖南汨罗 414400

湿地松;半同胞家系;产脂量;生长性状;遗传力

Study on selection of resin output among half-sib families of Pinus elliottii
LI Yan1, WU Jiyou2, CHENG Yong2, LIU Qiu2, CHEN Minggao2, PAN Baihong1, HUANG Mingjun2, LI Zhihui1, HUANG Shuiqing3

1. Central South University of Forestry and Technology, Changsha 410004, Hunan, China; 2. Hunan Forestry Academy, Changsha 410004, Hunan, China; 3. State-owned Taolin Forestry Station in Miluo City of Hunan Province, Miluo 414400, Hunan, China

Pinus elliottii; half-sib families; resin output; growth traits; heritability

DOI: 10.14067/j.cnki.1673-923x.2017.01.009

备注

为选择湿地松优良家系，对 13个湿地松半同胞家系的产脂量、树高、胸径、材积进行测定。结果 表明：产脂量、树高、胸径、材积在家系间均有显著差异，且产脂量家系变异系数较大；产脂量和生长量相关性显著，与树高、材积相比，胸径与产脂量相关系数最大（ R2=0.731）；产脂量、树高、胸径、材积的家系遗传力与单株遗传力均较高，其中树高家系遗传力与单株遗传力分别为 0.826 9和 0.973 6，产脂量家系遗传力与单株遗传力分别为 0.775 7和 0.552 2；Duncan多重比较显示，产脂量与生长量均表现良好的家系为 7、6、4、12、15。

In order to select the superior half-sib families of Pinus elliottii, the resin output, height, DBH, volume of timber of 13 half-sib families of Pinus elliottii were measured and analyzed. The results showed that:There were significant influences withresin output, height, DBH, volume of timber of Pinus elliottii on differentfamilies. In addition, variation coefficients of resin output for differentfamilies were high. There were significantcorrelations betweenresin output and growth. The correlation coefficient of DBH and resin output was the highest (R2=0.731). Family mean heritability and single-tree heritabilityforresin output, height, DBH, volume of timber were high. Family mean heritability for height and resin output was 0.826 9 and 0.775 7 respectively; also single-tree heritability for height and resin output was 0.973 6 and 0.552 2, respectively. According to Duncan’s contrast, 7、6、4、12、15 were selected for the optimal families whose resin output and growth were performed well.