腐皮镰孢菌对花椒抗根腐病诱导作用研究  

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

作　　者：朱天辉[1] 杨启智 

机构地区：[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

出　　处：《林业科学》1999年第6期67-70,共4页Scientia Silvae Sinicae

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。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 foot rot 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. The 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 from 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 was linear relationships between induced resistant effect and injections ferment liquid quantity in some dosage range.

关 键 词：花椒 诱导抗性 植物病害 腐皮镰孢菌 

分 类 号：S435.73[农业科学—农业昆虫与害虫防治]