闽楠优树子代测定林生长性状差异及聚类分析

调查分析福建省永安国有林场8个种源43个家系的8 a生闽楠优树子代测定林.结果表明:不同家系间胸径、树高、材积等性状生长差异极显著.平均胸径6.14 cm,变异系数23.35%;平均树高4.98 m,变异系数21.16%;平均材积0.009 1 m3,变异系数60.11%.不同家系胸径、树高、材积的遗传力分别是86.32%,96.23%,88.84%.对胸径、树高、材积进行系统聚类分析、综合排序,开展闽楠优良家系选择.入选家系按排序分别为NP606,NP617,NP607,NP602,Sx04,Yp602,NP608,NP601,入选的优良家系可用作闽楠育种群体和无性繁殖材料.

Variation and Cluster Analysis for Growth Characters of Plus Tree Progeny of Phoebe bournei

Plus tree progeny test plantations of Phoebe bournei were constructed in Yong' an National Forest Farm,the provenances and progeny trials involving 8 provenances and 43 families.We carried out the progeny test on 8-year-old plantations.The result showed that the families DBH, height and volume were highly varied, the average DHB is 6.14 cm,and coefficient of variation is 23.35%;average height is 4.98 m,variation coefficient is 21.16%;average stem volume is 0.0091 m3 ,variation coefficient is 60.11%.The heritability of DBH,height, volume among different families was 86.32%,96.23%,88.84% respectively.A hierarchical cluster analysis and comprehensive sorting were performed on DBH,height and volume to select superior families,the selected families were NP606,NP617,NP607,NP602,Sx04,Yp602,NP608,NP601,these selected superior lines may be useful for the genetic breeding and clone materials for propagation.