杉木第二代种子园更新复壮技术  

Rejuvenation Technology of 2ndGeneration Seed Orchard inCunninghamia lanceolata

作　　者：谢旺生 

机构地区：[1]光泽县营林投资公司,福建光泽354100

出　　处：《安徽农学通报》2012年第14期221-223,共3页Anhui Agricultural Science Bulletin

基　　金：福建省林木科学技术推广项目"杉木低产种子园改造推广应用"项目

摘　　要：对1990年营建的杉木第2代种子园进行更新复壮。结果表明:截干3.5年后,树高年均生长0.93m,平均冠幅为3.38m,平均轮盘枝数为3.5条,平均单株球果鲜重为0.797kg;母树之间球果产量差异明显,单株球果鲜重变异系数为167.75%;更新复壮后3.5年,45.78%的母树可结实,种子园单位面积球果产量为224.156kg/hm2。Rejuvenation test was carried out in the 2nd generation seed orchard of Cunninghamia lanceolata, which was established in 1990. In 3.5 years of topping, annual growth of tree height was 0.93m, average crown was 3.38m, the average number of branch was 3.5 and average fresh weight of plant cone was 0.797kg. There were significant differences among individuals and the coefficient of variation of fresh weight of plant cone was 167.75%. 45.78% of individuals could fructify, and the yield of cone was 224.156kg/hm2.

关 键 词：杉木 第2代种子园 更新复壮 

分 类 号：S791.27[农业科学—林木遗传育种]