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一、引言测定优树的遗传品质,最可靠的方法就是通过子代造林测定,了解各个家系在不同环境条件下的性状表现,以筛选出遗传品质优良的亲本和子代,淘汰误选优树,提高遗传增益。
I. INTRODUCTION The most reliable method for determining the genetic quality of elite trees is to determine the traits of each family under different environmental conditions by measuring the offspring afforestation to screen out the parents and offspring with good genetic qualities, Increase genetic gain.