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柚木种源主要性状聚合遗传值的评价

Evaluation on Aggregate Genetic Value of Main Characters of Provenances of Teak

  • 摘要: 采用聚合遗传值法,对9年生的印度、秦国、缅甸、尼日利亚等柚木种源9种性状进行评价,结果表明,除保存率外,各种性状在种源之间存在显着至极显着差异,并主要受遗传所控制。生长的早晚期呈紧密相关表明:对苗高进行汰劣性选择和在幼林生长初期作种源的生长评价,具有一定价值。为两个试验点评选的3071、3070、3074、3072、3078种源,在材积生长、质量和生活力方面具有很高的遗传效益,其中3071种源为最优。

     

    Abstract: Nine characters of teak provenances from India,Thailand,Nigeria at 11 years old are evaluated according to a method of aggregated genetic value which has been used in the evaluation of an international series of teak provenance trials. The results show that there are sighificant or highly significant differences among provenances in 9 characters of growth,quality and viability except for survival rate. The great relevance between juvenile and aged tree of teak indicate that it is potential to make evaluation on the characters of provenance of teak and selection of superior trees at the seedling stage.The superior provenances selected are No. 3071,3074,3070 and 3072.Their volume growth,quality and viability can be heritable highly. Provenance 3071 is the best.

     

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