杉木优良家系苗期性状的遗传变异研究  

Genetic variation of the seedling traits in superior family of Chinese fir

作　　者：温小荣[1] 叶志宏[1] 钟育谦[2] 

机构地区：[1]南京林业大学,江苏南京210037 [2]江苏省林业勘察设计院,江苏南京210013

出　　处：《江苏林业科技》1999年第4期11-13,共3页Journal of Jiangsu Forestry Science & Technology

基　　金：国家"八五"科技攻关课题

摘　　要：对杉木１２０ 个优良家系子代苗期１５ 个主要性状（ 包括苗高、分枝数、根系发育、生物量等） 进行了遗传变异研究，并对各性状进行了单株遗传力估算。结果表明，侧根长、冻害率、地下鲜重、侧根数、地下干重等性状在家系间差异极显著，并有较高的单株遗传力（ 均达０－４ 以上） 。Genetic variation of the 15 main seedling biomass traits of 120 superior families was analyzed in Chinese fir and the individual heritability was assessed repectively.The variance analysis results indicated that there existed significant difference in the length of lateral roots,rate of freezing injury,underground fresh weight,number of lateral roots,underground dry weight among these familes.In addition,The individual heritability of these traits was superior to that of other traits. Author’s address:Nanjing Forestry University,Jiangsu Nanjing 210037 China

关 键 词：杉木 优良家系 苗期性状 遗传力 

分 类 号：S722.3[农业科学—林木遗传育种]