ZHANG Yanhui,FENG Jian,ZHANG Suqing,et al.Influence of Growth and Fructification Characteristics of Mother Trees by Tree Management in Larix olgensis Henry Seed Orchard[J].Northern Horticulture,2017,41(06):60-64.[doi:10.11937/bfyy.201706014]
树体管理对长白落叶松种子园母树生长及结实性状的影响
- Title:
- Influence of Growth and Fructification Characteristics of Mother Trees by Tree Management in Larix olgensis Henry Seed Orchard
- Keywords:
- tree management; seed orchard; Larix olgensis Henry; fructification
- 文献标志码:
- A
- 摘要:
- 以长白落叶松种子园母树为研究对象,研究了截顶、修剪对长白落叶松树体生长和球果产量的影响,旨在提出长白落叶松种子园树体管理技术,从而促进长白落叶松种子园增产。结果表明:修剪使长白落叶松母树平均树高由5.93 m增长到7.52 m,5年生长量仅为1.59 m;修剪母树冠幅比对照母树冠幅生长量高1.60 m,生长率高21.28个百分点,修剪母树平均冠幅是对照母树平均冠幅的1.31倍;修剪母树平均单株结实量为1.71 kg,最大结实量可达4.99 kg,分别为对照母树平均单株结实量的1.34、5.74倍;修剪母树球果平均采收效率是对照母树球果平均采收效率的1.7倍。长白落叶松母树修剪以中度和重度修剪为宜,截顶保留轮枝数以5~7轮枝为宜。长白落叶松树体管理技可提高母树单株种子产量,降低劳动强度,提高球果采收效率,提高采种安全性。
- Abstract:
- This study focused on the influence on growth and fructification characteristics of mother trees by tree management in Larix olgensis Henry seed orchard.The results showed that the average tree height of mother trees increased from 5.93 m to 7.52 m by the pruning,and the increment of 5 years was only 1.59 m;crown diameter compared with CK increased 1.60 m,21.28 percentage point higher growth rate;the average yield of treated mother trees was 1.71 kg,the max average yield of treated mother trees was 4.99 kg,was 1.34 times and 5.74 times of control mother trees,respectively.The best pruning of Larix olgensis Henry mother trees was moderate and severe pruning,and truncated by retained branch of 5-7.
参考文献/References:
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备注/Memo
第一作者简介:张砚辉(1972-),男,本科,高级工程师,现主要从事林木遗传育种与种子园经营等研究工作。E-mail:553437306@qq.com.责任作者:冯健(1978-),男,博士,教授级高级工程师,现主要从事林木遗传育种与分子生物学等研究工作。E-mail:fengjian-0205@163.com.基金项目:国家“十二五”科技支撑计划资助项目(SQ2012BAJY303501);辽宁省科学技术计划重大资助项目(2011207002)。