Study On the Etiology of Pomegranate Canker Diseases

The systemic relationship among the three strains of pomegranate canker diseases, the disease symptom, pathogen morphology, culture and physiological characters and molecular diversity was studied by comparison. The pomegranate scab and fruiting pathogen are belonged to same pathogen and deduced the pathogen infect to pomegranate stem or limb at first and infect calyces and fruit second, the pathogen of pomegranate stem rot mainly infect stem or limb, whether the pathogen infect fruit and produce symptom or not is needed to continue studying and identification.