罗田垂枝杉种子园子代形态遗传研究

Study on Filial Generation Morphological Genetics in Seed Orchard of Cunninghamia laceolata cv. Luotian

摘要:

摘要：罗田垂枝杉是湖北省特有的速生优质用材树种，为大面积推广应用，并保证子代优良性状遗传的稳定性，笔者通过对湖北省红安县老君山林场罗田垂枝杉种子园的子代林遗传特性和遗传增益的研究，结果表明：罗田垂枝杉初级无性系种子园子代林所具有的冠幅小、生长快、干形通直圆满等优良特性都能够稳定遗传；罗田垂枝杉适宜较高密度造林，单位面积产量明显提升，增益效果显著。

Abstract:

Abstracts:Cunninghamia laceolata cv. Luotian is the superior and fast-growing timber species in Hubei province. In order to apply and extend in large scale, also guarantee stability of fine characteristics genetic of filial generation, the genetic character and genetic gain of progeny forest of Cunninghamia laceolata cv. Luotian seed orchard in Laojun Mountain forest farm in Hong'An county in Hubei province are studied by authors. The results show that Cunninghamia laceolata cv. Luotian prime clonal seed orchard progeny forest is kind of small canopy, fast growth, straight and full stem form etc. excellent features to stabilize the genetic, also high-density afforestation, their yield increase and genetic gain obviously.