福建柏优树子代苗期性状遗传变异研究  

Studies on the genetic variations of traits among Fokienia hodginsii plus-tree progeny at seedling stage

作　　者：万娟[1] 陈剑成 陈元品 李渊顺 何天友[3] 荣俊冬[1] 郑郁善[1,3] 

机构地区：[1]福建农林大学林学院,福建福州350002 [2]福建省安溪白濑国有林场,福建安溪362411 [3]福建农林大学园林学院,福建福州350002

出　　处：《江苏林业科技》2017年第2期6-10,共5页Journal of Jiangsu Forestry Science & Technology

基　　金：福建省科学技术厅项目"福建柏良种繁育研究"(闽林科[2013]1号)

摘　　要：以24个福建柏优树子代苗木为研究对象,对其生长量、生物量和根系等8个性状指标进行了方差分析、相关性分析和主成分分析。结果表明,1年生福建柏苗木各性状之间存在丰富的遗传变异,具有改良的潜力;各性状普遍受到了中等以上的遗传控制,其中总根体积的遗传力最高,达到了0.96;苗高仅与地径、地上鲜质量、总根长、总根体积存在显著或极显著相关,地径、地上干鲜质量、地下干鲜质量、总根长与总根体积相互之间存在极显著的相关;纬度是影响生物量性状的主要地理因子。对8个性状进行主成分分析后,得到能概括所测8个性状78.23%信息的3个主成分,计算出各家系的综合得分。The traits of growth,biomass and root system of the seedlings of 24 Fokienia hodginsii plus tree progeny were studied with the methods of ANOVA ’ correlation analysis and principal component analysis. The results showed that there was abundant genetic variation among the traits of the annual seedlings which had the potentiality for improvement. And significant differences （ P〈0. 05） occurred among all traits ’ which were under genetic control at the medium above ’ ranged from 0. 37 to 0. 96 ’ with the heritability of total root volume higher than others （ reaching 0. 96）. There was a marked positive cor-relation between these traits. Among the geographical factors, the latitude was the main affecting factor on biomass, 3 princi-pal components contributed to 78. 23% of 8 traits were obtained,and the comprehensive score of each family was calculated.

关 键 词：福建柏 苗木 生长量 生物量 根系 遗传变异 

分 类 号：S722.33[农业科学—林木遗传育种]