基于生长与材性性状的灰楸优良无性系初选
Primary Selection of Excellent Catalpa fargesii Clones Based on Growth and Wood Properties
[目的]为筛选速生,材质优良的灰楸无性系。[方法]本研究测定了来自不同生态区(4个省份)的 200个灰楸无性系 1年,9年,11年和 13年生的生长性状(树高和胸径),13年生的材性性状(Pilodyn值和弹性模量),并进行了遗传变异分析和重复力估算,分析了性状间,及性状与地理气候因子的相关性;利用综合评价法结合育种值选择优良无性系。[结果]灰楸各性状在无性系间差异极显著,变异系数介于 12.12%-26.17%,重复力介于 0.79-0.97.…查看全部>>
[Objective]To select excellent clones characterized by fast growth and high-quality wood of Catalpa fargesii Bur.[Method]Growth traits,including height and diameter at breast height(DBH)at 1,9,11 and 13 years old,were collected and wood properties,including the Pilodyn value and elastic modulus at age 13 of 200 clones of C.fargesii from different ecological areas(four provinces),were measured.[Result]Genetic variation analysis and repeatability estimation we…查看全部>>
于晓池;张鹏;王军辉;易飞;麻文俊;
Catalpa fargesii genetic variation comprehensive evaluation method breeding value excellent clone breeding.
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