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›› 1989, Vol. 25 ›› Issue (2): 167-170.

• 研究简报 • 上一篇    下一篇

应用(32)P和(86)Rb对泡桐丛枝病病枝、叶吸收磷钾规律的研究

杨俊秀   

  1. 西北林学院
  • 收稿日期:1987-02-17 修回日期:1900-01-01 出版日期:1989-03-25 发布日期:1989-03-25

THE UPTAKE OF PHOSPHORUS AND POTASSIUM IN DISEASED TWIGS AND LEAVES OF PAULOWNIA WITCHE'S BROOM BY USING 32P AND (86)Rb

Yang Junxiu   

  1. Northwestern College of Forestry
  • Received:1987-02-17 Revised:1900-01-01 Online:1989-03-25 Published:1989-03-25

关键词: 丛枝病, 泡桐, 同位素, 示踪物

Abstract: There is a close relationship between the amount of content of P and K in soil and the incidence of the disease. When the content of P in soil is high, the incidence of the disease would be slight. When the content of K in soil is high the incidence of the disease would be serious. Index of invasion is in a negative correlation with P/K based upon the results, 32P and 86Rb were used as radioisotope tracer in uptake by diseased twigs and leaves of Paulownia. Results indicated that the species which is resistant to the disease absorbed more K and less P than the species which is susceptible.

Key words: Witche's broom, Paulownia, Isotope, Tracer