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