杉木优良无性系苗造林的效益估算

PROJECTED BENFITS BY THE SEEDLING COME FROM FINE CLONE OF CHINA FIR ON AFFORESTATION

未来的林业是无性系林业,优良无性系苗造林能把种源选择,种子园的遗传改进、杂交育种、个体选择等成果择其最优部分加以基因复制、利用,从而获得较高的增产效益。本文介绍了12个杉木优良无性系造林后各因子的遗传力和遗传增益。估算了12个优良无性系造林的效益。

The forestry is clone forestry in future. Tit seeding come from fine clone can give higer benfiel of increase production on afforestation. because their gene had been passed seed source choose forest garden' s heredity improve, cross breeding and individual choose, and these geneofoptimumsectionshouldbe reconstructed and utilized.This paper is expound which heritabilits and gentic gain of every factor the seedling of China Fir come from 12 fine clone after afforestation and estimate their benfit.