黑杨派无性系生长与材性联合选择  

Joint Selection for Growth and Wood Properties in Aigeiros Clones

作　　者：李善文[1] 姜岳忠[1] 王桂岩[1] 王卫东[1] 乔玉玲[1] 

机构地区：[1]山东省林业科学研究院,济南250014

出　　处：《林业科学》2005年第2期53-58,共6页Scientia Silvae Sinicae

摘　　要：利用 9年生黑杨派 10个无性系试验林材料进行了生长与材性等 14个性状的遗传分析及选择研究。方差分析、遗传参数估测表明 ,无性系间 14个性状差异均达极显著水平 ,各性状无性系重复力在 0 85 2～ 0 987。说明这些无性系在多个性状上存在广泛遗传差异 ,并且这种差异受较强的遗传控制 ,从中进行多性状遗传改良是可行的。经多性状主成分分析和聚类分析 ,选出卡帕茨、5 0杨、I 6 9三个综合性状表现优良的无性系 ,其中卡帕茨为新选无性系 ,在该试验林中生长量最高 ,材积超I 2 14杨 6 9 7%、超中林 4 6杨 7 9% ,且材质优良 。Fourteen traits of ten clones from Section Aigeiros were studied by genetic analysis and comprehensive selection at nine-year-old. Variance analysis and estimates of genetic parameters demonstrated that the clone effect was significant or highly significant for all traits. Their repeatabilities ranged from 0.852 to 0.987. The result indicated that Aigeiros clones exhibited wide genetic variation in 14 traits studied, and multi-traits complex selection was feasible among them. Principal component analysis and cluster analysis indicated that Populus×euramericana cv. ‘Carppaccio' ,P. deltoides cv.‘55/65' and P. deltoides cv. ‘Lux' were superior clones with fine comprehensive traits. Especially, P.×euramericana cv.‘Carppaccio' was a superior new introduced clone, which was the biggest one in volume among the tested clones. Its volume was 169.7% , 107.9% compared with P.×euramericana cv.‘I-214' ,P.×euramericana ‘Zhonglin46’ respectively.This superior clone with straight and round trunk ,moderate taper and crown, and excellent timber quality was suitabe for popularization.

关 键 词：黑杨派 无性系生长 联合选择 材性 遗传参数估测 主成分分析 中林46杨 选择研究 遗传分析 方差分析 显著水平 性状差异 遗传差异 遗传控制 遗传改良 聚类分析 性状表现 I-69 推广应用 试验林 多性状 重复力 生长量 材积 

分 类 号：S792.11[农业科学—林木遗传育种] S793.602[农业科学—林学]