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华北落叶松采穗圃经营管理技术
引用本文:杨俊明,沈熙环,赵士杰,贾桂霞.华北落叶松采穗圃经营管理技术[J].北京林业大学学报,2002,24(3):28-34.
作者姓名:杨俊明  沈熙环  赵士杰  贾桂霞
作者单位:1. 北京林业大学生物科学与技术学院;2. 河北省林业科学院;3. 北京林业大学园林学院
基金项目:河北省科技攻关项目;;
摘    要:为开拓华北落叶松扦插优质插条来源,建立采穗圃.结果表明:华北落叶松直干台形冠采穗树,插条产量高,生根效果好;早春及时修剪,有利于插条生根;连年修剪可显著提高优等插条率;采穗树整形、修剪宜用总状二歧式回缩修剪法;利用扦插易生根的家系材料营建采穗圃,可显著提高扦插生根效果;当年枝条伸长生长高峰过后立即采条扦插,生根效果最好;采穗树更新年限为6~7龄.依据连年修剪、扦插试验结果,提出了合格插条产量>315万支/hm2、扦插生根率达80%左右的采穗树密度调控、整形修剪方案.

关 键 词:华北落叶松  采穗圃  修剪  扦插

Techniques in establishment and management of cutting orchard of Larix principis-rupprechtii Mayr.
Yang Junming, Shen Xihuan, Zhao Shijie,Jia Guixia.College of Biology,Beijing For. Univ.,P.R.China..Techniques in establishment and management of cutting orchard of Larix principis-rupprechtii Mayr.[J].Journal of Beijing Forestry University,2002,24(3):28-34.
Authors:Yang Junming  Shen Xihuan  Zhao Shijie  Jia GuixiaCollege of Biology  Beijing For Univ    PRChina
Institution:Yang Junming, Shen Xihuan, Zhao Shijie,Jia Guixia.College of Biology,Beijing For. Univ.,100083,P.R.China.
Abstract:To produce cuttings of L. principis rupprechtii Mayr. on a vast scale, a study on establishment and management of a cutting orchard was carried out. Results show that: (1)High production of well rooted cuttings can be realized by keeping straight stem and platform crown of the cutting collecting trees; (2) Pruning in early spring has positive effect on root occurrence of the cuttings;(3) Ratio of superior cuttings can be greatly increased by annual pruning; (4) Pruning method \!dichotomous raceme\" for collecting trees is preferable; (5) The ratio of rooted cuttings can be greatly amplified by selection of easy rooted families for the orchard; (6) Juvenile cuttings collected right after the growth peak of shoot give good results for rooting; (7) The cutting orchard is to be regenerated at age 6~7. A stable yield of qualified cuttings over 3.15 million per hectare with rooted rate of over 80% could be expected in consideration of above mentioned points and under proper density design.
Keywords:Larix principis  rupprechtii  Mayr    cutting orchard  pruning  rooted cutting
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