鄂西北楸树无性系苗期测定与选择

Determination and Selection of Seeding Stage ofCatalpa Bungei Clones in Northwest Hubei

摘要:

摘要：本文以57个楸树无性系为试验材料，通过苗期测定，初步选择出12个楸树优良无性系。试验结果表明：苗高、地径生长量差异均达到极显著水平，苗高、地径的重复力分别为61.40%和29.82%。无性系说明苗高的遗传潜力大于地径，利用指数选择法，苗期选择了12个楸树优良无性系。

Abstract:

Abstracts:The paper used 57 kinds of Catalpa bungei clones at seedling stage,the 12 superior clones of Catalpa bungei were selected.The testing results showed that seedling height, ground diameter growth difference reached significant level,the repeatability of seedling height, ground diameter were 61.40% and 29.82%. Clones described the genetic potential greater than ground diameter.The 12 superior clones of Catalpa bungei were selected at seedling stage by index selection method.