木麻黄优良无性系去枝与留枝育苗及造林效果分析  

Seedling Production and Afforestation of Single-branch and Multi-branch of Casuarina spp.Clones

作　　者：林喜金 Lin Xijin(Natural Resources Service Center of Pingtan Comprehensive Experimental Zone,Fuzhou 350400,China)

机构地区：[1]平潭综合实验区自然资源服务中心,福建福州350400

出　　处：《防护林科技》2020年第5期30-31,80,共3页Protection Forest Science and Technology

基　　金：福建省省属公益类科研院所专项(2017R1011-6);福建省林木种苗科技攻关六期项目:沿海木麻黄良种定向选育技术研究与应用。

摘　　要：对木麻黄优良无性系去枝、留枝及其在育苗造林中的生长情况进行比较,结果表明:木麻黄优良无性系去枝和留枝苗的生根率差别不大,都在88%以上;多枝容器苗地径、苗高、成活率好于去枝,差异极显著。造林后3年调查,留枝苗生长更快,长势更好,胸径、树高及保存率与去枝苗相比差异显著。建议生产上应采用木麻黄优良无性系留枝苗在造林中推广应用。The seedling production of single-branch and multi-branch of excellent clones of Casuarina spp.in seedling production and afforestation were compared.Result shows that the rooting rate of single-branch&multi-branch has little difference,all are over 88%;ground diameter,seedling height,survival rate of multi-branch container seedlings are excellent,compared with single-branch containerized seedlings,they have significant differences.Investigations after three years forestation shows that multi-branch containerized seedlings grew faster and better than single-branch containerized seedlings,the height(H),diameter at breast height(DBH)and preserving rate of trees of multi-branch containerized seedlings are higher in the same period.The multi-branch seedling for Casuarina spp.in production should be adopted,and it is worth spreading and applying in the afforestation.

关 键 词：木麻黄 无性系 去枝穗育苗 留枝穗育苗 容器苗 

分 类 号：S792.93[农业科学—林木遗传育种]