Identification of physiological race of pumpkin powdery mildew in Kun-ming region
In order to identify the species and physiological race of powdery mildew in Tuanjie region,Kunming,Yunnan province,the pathogen and physiological race of pumpkin powdery mildew in Tuanjie region were identified through the observation of pathogen spore morphology,molecular identification of ITS sequence,international common physiological races identification hosts of melon powdery mildew and its standard identification system.The results showed that the spores were oval in shape with fibrous bodies.The rDNA-ITS sequence was grouped with the ITS sequence of Podos-phaera Xanthii,and the similairities was up to 99％.The resistance and susceptible response of the pathogen samples to the identification of the host was consistent with that of the physiological race 2France.Therefore,the pathogen causing powdery mildew of pumpkin in Tuanjie region of Kunming city was identified as race 2France of P.Xanthii.
NETL
NSTL
万方数据
维普
