欢迎访问林业科学,今天是

林业科学 ›› 1999, Vol. 35 ›› Issue (6): 67-70.

•   • 上一篇    下一篇

腐皮镰孢菌对花椒抗根腐病诱导作用研究

朱天辉1,杨启智2   

  1. 1. 四川农业大学林园学院 雅安 625014
    2. 四川省汉源县花椒协会 汉源 625300
  • 收稿日期:1998-12-15 出版日期:1999-11-25 发布日期:1999-11-25

A STUDY ON INDUCED RESISTANCE AGAINST THE ROOT ROT IN ZANTHOXYLUM BUNGEANUM WITH FUSARIUM SOLANI

Tian hui Zhu1,Qi zhi Yang2   

  1. 1. College of Forestry and Horticulture, Sichuan Agricultural University Yaan 625014
    2. Sichuan Hanyuan Country Association for Chinese Prickly Ash Hanyuan 625300
  • Received:1998-12-15 Online:1999-11-25 Published:1999-11-25

摘要:

腐皮镰孢菌培养液中存在一种耐热性的诱导因子,发酵培养7 d后,其生成量最大;在对3年生花椒的4种诱导方法中,以根部注射和根茎部注射的诱导抗性效应较明显,其抗性诱导期、最大期、持续期分别为10、20、35 d,在抗性表现的开始期和最大期,重复诱导可以明显增强诱导抗性,以重复诱导4次效果最好,可使抗性诱导效应由38.1 %~ 81%提高到60% ~ 95.0 %,在诱导抗性最大期进行4次重复诱导,可使诱导抗性持续期延长到至少55 d;在一定剂量范围内,诱导效应与诱导因子剂量成正相关。

关键词: 花椒, 诱导抗性, 植物病害, 腐皮镰孢菌, 森林保护

Abstract:

An inducer, up to the highest yield at seventh day of ferment incubation of Fusarium solani, was tested for its tolerance to higher temperature.An induced Zanthoxylum bungeanum resistance against footrot was appreciated by 4 methods of induction injection with hot-treat ferment liquid of Fusarium solani.The root injection and root-stock injection methods gave good effect when the challenge inoculation with Fusarium solani was conducted after 5 days of induction.T he induced resistance of the plant expressed at 10 days, reached peak at 20 days and lasted 36 days with root-stock injection method.The plants were induced repeatedly at 10 days and 20 days, respectively, which resulted in increasing induced resistance f rom 38.1 %~ 81 % up to 60 %~ 95 % by 4 times of induction and in lasting expression of induced resistance from 35 days to more than 55 days by 4 times of induction. There w as linear relationships between induced resistant effect and injections ferment liquid quantity in some dosage range.

Key words: Zanthoxylum bungeanum, Induced resistance, Fusarium solani, Plant disease, Plant protection