马尾松大田育苗剪顶技术研究  

Studies on Top-cutting Techniques for Field Seedlings of Pinus massoniana

作　　者：戴寿连 秦国峰[2] 吴天林[2] 储德裕 

机构地区：[1]浙江省林业厅,杭州310020 [2]中国林科院亚热带林业研究所 [3]淳安县姥山林场

出　　处：《浙江林业科技》2000年第1期64-67,93,共5页Journal of Zhejiang Forestry Science and Technology

摘　　要：对苗木剪顶的效果、技术要点及有关问题作了报道 :①通过剪顶苗生长效应的研究 ,揭示了剪顶对抑制苗高、促进增粗、增强木质化、降低高径比等调节苗木生长的作用 ,为培育粗壮相对高度合理的优质苗提供依据 ;②实施剪顶应掌握适时与剪顶高度等技术要点 ,剪顶时间以苗木生长旺盛期的 8月中旬最适 ,剪顶高度以 2 0cm为宜 ;③对剪顶苗是否会出现多主干现象、接干不良影响干形、幼嫩芽梢冻害等问题作了分析与研究 ;④马尾松大田苗剪顶技术简便易行 ,用工投入少、技术增益高 。This paper reported the effects,key techniques and relative questions of cutting top of seedings.① Cutting top of seedlings of Pinus massoniana could inhibit heighth,improve thickening growth,increase lignification and decrease ratio of heighth to diameter.②The suitable top-cutting time and heighth are mid-August and 20cm,respectively.③This paper analysed some questions relative to this technique,such as multiple-stem phenomenon and freeze damage of tender buds and tops.④Top-cutting techniques for field seedlings of Pinus massoniana is practical and have great economic benefits.

关 键 词：马尾松 大田苗 剪顶技术 剪口芽梢 育苗技术 

分 类 号：S791.248[农业科学—林木遗传育种] S723.1[农业科学—林学]