湖北林业科技
湖北林業科技
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HUBEI FORESTRY SCIENCE AND TECHNOLOGY
2012年
2期
23-25,90
,共4页
罗田垂枝杉%种子园%子代%形态遗传
囉田垂枝杉%種子園%子代%形態遺傳
라전수지삼%충자완%자대%형태유전
Cunninghamia laceolata cv.Luotian%seed orchard%filial generation%morphological genetics
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。
囉田垂枝杉是湖北省特有的速生優質用材樹種,為大麵積推廣應用,併保證子代優良性狀遺傳的穩定性,筆者通過對湖北省紅安縣老君山林場囉田垂枝杉種子園的子代林遺傳特性和遺傳增益的研究,結果錶明：囉田垂枝杉初級無性繫種子園子代林所具有的冠幅小、生長快、榦形通直圓滿等優良特性都能夠穩定遺傳;囉田垂枝杉適宜較高密度造林,單位麵積產量明顯提升,增益效果顯著。
라전수지삼시호북성특유적속생우질용재수충,위대면적추엄응용,병보증자대우량성상유전적은정성,필자통과대호북성홍안현로군산림장라전수지삼충자완적자대림유전특성화유전증익적연구,결과표명：라전수지삼초급무성계충자완자대림소구유적관폭소、생장쾌、간형통직원만등우량특성도능구은정유전;라전수지삼괄의교고밀도조림,단위면적산량명현제승,증익효과현저。
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.
