马尾松改良种子园早期评价与选择  

Early Test and Selection of Improved Seed Orchard of Pinus massoniana

作　　者：贾婕[1] 钟凤跃 颜培栋[1] 杨章旗[1] JIA Jie;ZHONG Feng-yue;YAN Pei-dong;YANG Zhang-qi(Guangxi Forestry Research Institute, Engineering Research Center of Masson Pine of State Forestry Administration, Engineering ResearchCenterofMassonPineinGuangxi,Nanning530002,China;Hengxian Zhenlong Forest Farm,Hengxian,530307 Guangxi,China)

机构地区：[1]广西壮族自治区林业科学研究院国家林业局马尾松工程技术研究中心广西马尾松工程技术研究中心,南宁530002 [2]横县镇龙林场,广西横县530307

出　　处：《广西林业科学》2017年第1期13-16,共4页Guangxi Forestry Science

基　　金：八桂学者专项(2011A015);广西科技项目(桂科AD16380010);广西林业项目(桂林科字[2016]第1号)

摘　　要：对马尾松(Pinus massoniana)改良代种子园8年生子代测定林进行早期选择与评价。结果表明,35个半同胞家系的胸径、树高和材积性状差异达到显著或极显著水平,家系平均材积比初级种子园混系(对照)高52.55%,大于该对照材积10%以上的家系有34个,占参试家系个数的97.11%;采用独立淘汰法进行选择,按材积超过对照材积40%进行家系选择,选择出14个优良家系平均胸径、树高和材积分别为14.21 cm、8.12 m和0.074 1 m^3,比对照分别高18.25%、6.46%和55.55%,材积遗传增益3.90%,并结合优良家系和材积排名,选出34株候选优树。The 8 years old progeny test forest was early selected and evaluated in improved seed orchard. The results showed that there were significant or extremely significant differences in DBH, tree height and volume traits among 35 half-sib families. The average volume of family was higher than that of the primary seed orchard by 52.55% , and there were 34 families which were 10% bigger than that of the control group,accounted for 97.11% of whole families. When the volume was more than the control volume 40%, the family selection was carried out with independent elimination, 14 superior families were selected. The average DBH,tree height and volume of those selected families were 14.21 cm, 8.12 m and 0.074 1 m3, respectively. These traits were higher than that of the compare group with 18.25%, 6.46% and 55.55%, respectively. And the volume genetic gain was 3.90%. According to the superior families and volume ranking, 34 superior trees were selected to be candidate ones.

关 键 词：马尾松 改良代种子园 优良家系 

分 类 号：S791.248[农业科学—林木遗传育种]