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生态学杂志 ›› 1989, Vol. ›› Issue (1): 11-13.

• 研究报告 • 上一篇    下一篇

东北几个树种苗木的休眠深度

陶大立, 靳月华   

  1. 中国科学院沈阳应用生态研究所
  • 收稿日期:1987-08-14 修回日期:1987-11-26 出版日期:1989-02-10
  • 基金资助:
    国家自然科学基金

Dormancy Depth of Several North-east China Tree Species

Tao Dali, Jin Yuehua   

  1. Institute of Applied Ecology, Academia Sinica, Shenyang
  • Received:1987-08-14 Revised:1987-11-26 Online:1989-02-10

关键词: 污染环境, 微生物, 污染物降解基因, 分子生态学

Abstract: Six tree species were tested for their dormancy depth of seedlings by transfering them periodically from yard into growth chamber and recording the time span from trasfering to budbreaking. Fraxinus mandshurica needed >180 days and Tilia amurensis needed 296 days for breaking the deep dormancy in early October. However, the dormancy was reduced to 15—20 days in the next January. Similar patterns of change in dormancy depth are also reported for other tree species having less dormancy depth such as Magnolia parviflora and Kalopanax septemlobum. The implications of the results are discussed.

Key words: Contaminated environment, Microorganism, Pollutant-degrading gene, Molecular ecology