학술논문
向日葵細菌性軸腐病之特性、品種抗性及藥劑篩選 / Bacterial stalk rot of sunflower in Taiwan: varietal resistance and agrochemical screening
Document Type
Article
Author
Source
植物保護學會會刊. Vol. 46 Issue 4, p367-378. 12 p.
Subject
Language
繁體中文
ISSN
0577-750X
Abstract
Severe stalk rot of sunflower was first found in Tahu, Miaoli County in 2002. The disease mainly appeared on the stem and caused water-soaked symptoms. In some severe cases, the stem pith disintegrated and showed hollow stem symptoms. The pathogens were identified as Erwinia chrysanthemum and E. carotovora subsp. carotovora based on physiological and chemical tests, Biolog identification, and PCR analysis. This is the first record of the disease occurring in Taiwan. Resistance screening indicated that 'Tohokuhae' was the most sensitive cultivar and 'Moon bright' and 'Sunbright' showed better resistance when inoculated with Ech. Among 11 bactericides screened, tetracycline proved to be the most effective.