湿地松半同胞家系松脂产量选择研究  

Study on selection of resin output among half-sib families of Pinus elliottii

作　　者：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 

机构地区：[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

出　　处：《中南林业科技大学学报》2017年第1期48-52,共5页Journal of Central South University of Forestry & Technology

基　　金："十二五"农村领域国家科技计划专题研究项目(2012BAD01B0203);中南林业科技大学引进高层次人才科研启动基金(104-0137)

摘　　要：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.

关 键 词：湿地松 半同胞家系 产脂量 生长性状 遗传力 

分 类 号：S791.246[农业科学—林木遗传育种]