Identification of phytopathogenic fungi causing crown root rot on Asparagus officinalis L. in Ninh Thuan

Abstract

   Root rot is a disease on Asparagus officinalis L. that seriously affected the yield and quality of Asparagus officinalis L.. Fungi were isolated from asparagus with diseased rot collected from Ninh Thuan province. Koch’s postulate was applied to confirm the pathogens of the disease. The isolated fungal species were identified based on molecular phylogenic analyses including nucleotide sequences of the ITS region. Based on observation of macroscopic, microscopic, and 18S rDNA characteristics, it could be identified that the pathogens of crown root rot in Asparagus officinalis L. in Ninh Thuan were Fusarium equiseti and Fusarium proliferatum. This result will be the basis for further research on integrated pests management of asparagus.