安徽农业科学2013，Vol.41Issue(10)：4427-4430,4.
楸树与滇楸种间杂交组合苗期性状遗传变异
Genetic Variation of the Seeding Traits in Interspecific Hybridization of Catalpa bungei and Catalpa fargesii
摘要
Abstract
To study genetic variation of the seeding traits in interspecific hybridization of Catalpa bungei and Catalpa fargesii.[Method] The crossbred experiment was conducted with 25 Catalpa duclouxii Dode plus as male parent and 23 Catalpa bungei plus as female parent.The experiment was conducted in cross-hybrid breeding between species based on the conventional methods and run analytical studies on the interspecific hybridization of different hybridized combination,1 year-old sprout seedling transplanting,the phenological period of the stumping,the nursery height and the diameter at breast hight(DBH).[Result] The results showed that the effect of crossing combination was significant or highly significant.The family heritabilities of 1 year-old sprout' s nursery height and DBH were 73.75％ and 71.83％ ; while the two-year-old sprout were 75.79％ and 60.63％.The genetic characteristics is outstanding and the genetic variation is rich.[Conclusion] The heritability of seedling hight is higher than DBH.With seedling height to select and improve could obtain higher genetic profit.关键词
楸树/滇楸/杂交组合/苗期性状/遗传变异Key words
Catalpa bungei/ Catalpa fargesii/ Crosses / Seedling characters/ Genetic variance分类
农业科技引用本文复制引用
赵鲲,王军辉,焦云德,张建祥,王丽静..楸树与滇楸种间杂交组合苗期性状遗传变异[J].安徽农业科学,2013,41(10):4427-4430,4.基金项目
"十一五"国家科技支撑计划课题(2006BAD24B08). （2006BAD24B08）
