柚木种子园自由授粉子代家系测定及早期选择  

Families Testing and Early Selection of Open Pollinated Progeny of Teak(Tectona grandis) Seed Orchard

作　　者：石忠诚 叶晓鸿 梁伦智 黄桂华[2] 梁坤南[2] 周再知[2] 杨光[2] 

机构地区：[1]西江林业局悦诚林场,广东肇庆526638 [2]中国林业科学研究院热带林业研究所,广东广州510520

出　　处：《林业与环境科学》2016年第4期33-37,共5页Forestry and Environmental Science

基　　金："十二五"科技支撑课题"柚木黄檀西南桦新品种选育技术研究"(2012BAD01B00504);中央级公益性科研院所基本科研业务费专项资金项目"柚木种质资源创制与品种扩繁技术创新的研究"(RITFYWZX201502)

摘　　要：柚木（Tectona grandis）种子园自由授粉子代家系大田测定的初步结果显示：不同家系1~3 a生树高存在显著（P〈0.05）或极显著差异（P〈0.01）,家系保存率为50%~100%,树高和胸径变异系数分别为0.21和0.27,遗传力分别是0.50和0.27,由3 a生树高筛选出优良家系26号、35号和4号,树高和胸径遗传增益分别为6.43%和3.40%。In this paper, the preliminary results of open pollinated progeny families from teak seed orchard were reported, which showed that the tree height of one to three years old had significant or extremely significant difference in clifferent families. The survival rate of different families came from 50% to 100% and variation coefficients between height and DBH were 0.21 and 0.27, respectively. Heritability of height and DBH were 0.50 and 0.27, respectively. No. 26, no. 35 and no. 4 were selected as superior families at early stage, the genetic gain of height and DBH were 6.43% and 3.40%, respectively.

关 键 词：柚木 半同胞家系 遗传测定 早期选择 

分 类 号：S792.99[农业科学—林木遗传育种]