泡桐育苗方法比较研究  

Researchs on Breeding Methods of Paulownia

作　　者：周永学[1] 樊军锋[1] 许喜明[1] 

机构地区：[1]西北农林科技大学林科院,陕西杨凌712100

出　　处：《陕西林业科技》2003年第1期18-21,共4页Shaanxi Forest Science and Technology

基　　金：国家林业局科技推广项目 ;合同编号 [2 0 0 0 ] 14号。

摘　　要：采用留根、平茬、埋根 3种方法培育泡桐苗木 ,在相同管理条件下 ,年终生长量苗高和生物量方面平茬育苗 >留根育苗 >埋根育苗 ;地径生长方面留根育苗 >平茬育苗 >埋根育苗。分析了不同育苗方法苗木年生长变化规律。根据年生长进程 ,提出不同育苗方法应采取不同的抚育管理措施。Paulownia seedlings were cultivated by 3 kinds of methods,shoot-cutting, root-cutting and reserved root in nursery.Under same management, the order of annual height growth and bio-output is shoot-cutting seedling, reserved root seedling, root-cutting seedling, and the order of annual diameter growth was reserved root seedling, shoot-cutting seedling, root-cutting seedling. Meanwhile,the annual growth and development rules of the seedlings were analyzed.It is suggested that different management measures should be used in different breeding process.

关 键 词：泡桐 平茬 留根 埋根 育苗试验 生物量 地径生长 苗高生长 

分 类 号：S792.43[农业科学—林木遗传育种]