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›› 1991, Vol. 27 ›› Issue (2): 163-167.

• 研究简报 • 上一篇    下一篇

欧美杨新无性系生根性研究

朱湘渝 王瑞玲 黄东森   

  1. 中国林业科学研究院林业研究所
  • 收稿日期:1990-03-05 修回日期:1900-01-01 出版日期:1991-03-25 发布日期:1991-03-25

RESEARCH ON THE ROOTING PROPERTIES OF THE NEW CLONES OF POPULUS EURAMERICANA

Zhu Xianyu,Wang Ruiling,Huang Dongsen   

  1. Research Institute of Forestry, Chinese Academy of Forestry
  • Received:1990-03-05 Revised:1900-01-01 Online:1991-03-25 Published:1991-03-25

关键词: 欧美杨, 无性系, 生根性状

Abstract: Research on the rooting properties of 5 new clones of Populus euramericana shows: 1. The clones initiate a great number of root primordia, rooting early and with many lateral roots and long adventitious roots. The rooting percentages of these clones are high. The rooting performance is apparently better than that of the parents, P. deltoides Bartr. Cv. Lux and P. nigra. 2. The high general haritability of rooting percentages shows that rooting properties are mainly controlled by inherity. 3 . Temperatures from 20 to 25℃ are good for rooting. 4. Sufficienc water content of the cuttiug is the necessary condition for rooting, and water decifit is an important faclor of reducing rooting percentage. Whereas water soaking is a simple and effective method for increasing viability of the cutting.

Key words: Populus euramericana, Clone, Rooting property