马尾松第二代种子园树形控制技术  

The Tree Shape Control Technique of the Second Generation Seed Orchard of Pinus massoniana

作　　者：郑双全 孟庆银 苏顺德[2] 许鲁平 肖晖[2] 张子文 郑仁华[2] 

机构地区：[1]福建省沙县官庄国有林场,福建沙县365503 [2]福建省林业科学研究院,福建福州350012

出　　处：《福建林业》2016年第5期43-45,共3页Fujian Forestry

基　　金：三明市科技计划项目"马尾松速生及高产脂优良家系选择研究"(2013-N-20)

摘　　要：对定植于福建省沙县官庄国有林场罗溪工区5a的马尾松第二代种子园截顶、修枝、拉枝控制树形处理。措施实施3a后,树形控制效果明显,母树平均树高3.44m,冠幅3.59m,冠幅与树高比值为1.043,母树树形具有分枝低、低树高、宽冠幅的特点。树形控制后8hm^2的马尾松第二代种子园种子平均年产量为32.33kg,平均单位面积种子产量为4.04kg·hm^(-2),平均出籽率为1.01%,平均种子净度为97.67%,种子室内发芽率平均为57.52%。The fifth year second generation seed orchard of Pinus massoniana at Luoxi work zone of Shaxian Guanzhuang Natioanl Forest Farm was treated by cutting top, prunning and pulling branches. The control effects was obvious after 3 years. The average tree height, canopy, and the ratio of canopy to tree height of th emother trees were 3.44m, 3.59m and 1.043, respectively. The branches was low, the tree height was short, and the canopy was wide. After the control the aver- age yield of the 8 hectare P. massoniana was 32.33kg, the average unit area yield was 4.04kg.-hm-2, the avrage seed yield 1.01%, the average seed purity was 97.67% and the room germanation rate was 57.52%.

关 键 词：马尾松 第二代种子园 树形控制 

分 类 号：S718.55[农业科学—林学]