Identification of the pathogens causing potato dry rot in Hebei and Inner Mongolia
In order to clarify the current Fusarium species and dominant species of potato dry rot in Hebei and Inner Mongolia,300 tubers with typical symptoms of dry rot were collected and the pathogens were isolated.Fusarium species were identified using morphological characteristics and TEF-1α (translation elongation factor-1 alpha) sequences analysis,and their pathogencity were tested with inoculation.Four Fusarium species,namely F.sambucinum,F.acuminatum,F.oxysporum and F.redolens,were classified with the numbers of 149,80,3 and 3,respectively.F.sambucinum and F.acuminatum were dominant species in Hebei with frequencies of 50％ and 48.68％,respectively.However,F.sambucinum was dominant pathogen in Inner Mongolia with a frequency of 87.95 ％.
NETL
NSTL
万方数据
维普
