马尾松广西优良家系及优良单株的选择研究

SELECTION STUDY ON CHOICENESS GENEALOGIES AND INDIVIDUALS OF GUANGXI PINUS MASSIANA LAMB

采用方差分析、遗传参数分析和聚类分析方法,对16年生的马尾松实验林进行马尾松优良家系及速生单株选择,从105个家系中筛选出12个极高产家系和24个高产家系。运用快速聚类法从500个单株中筛选出98株即家系评价为极高产的单株,其一般配合力和特殊配合力均最高,可作为优良繁殖材料。第二类家系即家系评价为高产的单株,统计结果为106株;第三类家系即家系评价为中产的单株,统计结果为123株。

The variance,genetic parameters and cluster analysis methods were used in the selection study on choiceness genealogy and fast-growing individual experimental tree of the 16 years old Pinus massiana Lamb.12 sky-high yield genealogies and 24 high yield genealogies were screened out from 105 genealogies.By use of the K fast cluster analysis method,98 individuals were estimated as the sky-high yield trees from 500 trees.These trees had the highest combining ability and specific combining ability.And,the trees were considered as the choiceness planting materials.Also,106 individuals were estimated as the high yield trees and 123 as the middling yield trees.