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林业科学 ›› 2004, Vol. 40 ›› Issue (6): 75-78.doi: 10.11707/j.1001-7488.20040613

• 论文及研究报告 • 上一篇    下一篇

白桦强化促进提早开花结实技术的研究

杨传平 刘桂丰 魏志刚 吴月亮 周玉梅   

  1. 东北林业大学,哈尔滨150040;中国科学院沈阳应用生态研究所,沈阳110016
  • 收稿日期:2003-09-15 修回日期:1900-01-01 出版日期:2004-11-25 发布日期:2004-11-25

Study on Intensive Breeding Technique of Accelerating Betula platyphylla Flowering and Seeding Early

Yang Chuanping,Liu Guifeng,Wei Zhigang,Wu Yueliang,Zhou Yumei   

  1. Northeast Forestry University Harbin150040;Institute of Applied Ecology, Chinese Academy of Sciences Shenyang110016
  • Received:2003-09-15 Revised:1900-01-01 Online:2004-11-25 Published:2004-11-25

摘要:

在9年42次的前期试验的基础上,以1年生超级白桦苗为材料,通过5项配套强化措施(即适量CO2 浓度、适当光照强度、适时绞缢、适宜催花素喷施和适中温湿度控制)的处理,实现了野外条件下17~20年开花结实的白桦,2~3年开花结实、4~5年规模结实。此外,建立了人工生态因子全息时序监测、显示、调控集成配套系统。

关键词: 白桦, 强化育种, 提早开花结实

Abstract:

On the base of forty two early experiments for nine years, the one year-old-superior Betula platyphylla seedling dealing with five coordinative methods (proper concentration carbon dioxide, appropriate hormone spraying, right intensity of illumination, timely wring shear, mezzo control of temperature and humidity) could flower at age of 2~3 years old and seed at large scale at 3~4 years old. However, in the nature condition the B. platyphylla could not seed until at age of 17~20 years old. Besides, in this experiment the integrated and holographic time sequence system which can automatically monitor and display was developed.

Key words: Betula platyphylla, Intensive breeding, Early flowering and seeding