当前位置: 首页 > 文章 > 12年生马尾松种子园半同胞家系生长性状变异分析与优良家系选择 南京林业大学学报(自然科学版) 2010,34 (4) 26-30
Position: Home > Articles > Selection of excellent families and analysis on growth variation for the 12-year-old half-sib family of seed orchard of Pinus massoniana Journal of Nanjing Forestry University(Natural Sciences Edition) 2010,34 (4) 26-30

12年生马尾松种子园半同胞家系生长性状变异分析与优良家系选择

作  者:
洪永辉;林文奖;黄以法
单  位:
福建省漳平五一国有林场
关键词:
马尾松;无性系种子园;子代测定;性状变异;家系选择
摘  要:
通过对漳平五一国有林场和华安西陂林场12年生162个家系马尾松种子园半同胞子代测定林3个年度生长性状调查研究,分析不同年龄的家系方差分量、家系遗传力的变化,估算在一定选择强度下的遗传增益和选择效率,共选出22个优良家系的平均树高、胸径、单株材积分别为12.6m、16.9cm、0.1358m3,遗传增益分别为3.8%、14.4%、27.5%;在优良家系内进行优良单株选择,入选47个优良单株,平均树高14m,平均胸径22.8cm,平均单株材积0.2571m3,遗传增益分别为7.1%、15.7%、43.5%。
译  名:
Selection of excellent families and analysis on growth variation for the 12-year-old half-sib family of seed orchard of Pinus massoniana
作  者:
HONG Yong-hui1,2, LIN Wen-jiang1,2, HUANG Yi-fa1,2 (1.Wuyi National Forest Farm Fujian Province, Zhangping 364400, China; 2.Mason Pine Research Center of Longyan Fujian Province, Zhangping 364400, China)
关键词:
Pinus massoninana; clonal seed orchard; progeny test; trail variation; family selection
摘  要:
Based on the 3-year investigation on growth of half-sib progenies from 162 families of 12-year-old seed orchards of Pinus massoniana in Zhangping Wuyi National Forest Farm and Hua’an Xipi Forest Farm. The genetic variances and the heritabilities of families at different age were calculated, and the genetic gain and selection efficiency were estimated. The 25 selected families with fast growth had average tree height of 12.6 m, average DBH of 16.9 cm and average individual volume of 0.135 8 m3, and their genetic gain was 3.8 %, 14.4 %,27.5 %, respectively. The excellent families were used to select elite trees,167 individuals, with average height of 14 m, average DBH of 22.8 cm and average individual volume of 0.257 1 m3, the genetic gain was estimated at 7.1 %, 15.7 % and 43.5 %, respectively.

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