The Primary Studies on Pathogen Identification and Biological Characteristics of Physalis Alkekengi L. Root Rot in Yilan County of Heilongjiang Province
WANG Yong，ZHANG Jing-jing，YE Yang-yang，CHEN Dian*
College of Horticulture，Northeast Agricultural University，Harbin 150030，Heilongjiang，China
Abstract：The separate identification of pathogens from the disease tissue of Physalis alkekengi L. root rot in Yilan county of Heilongjiang province was carried out in this report．he morphology observation and the results of rDNA ITS sequence analysis revealed that Fusarium solani （Mart.）Sacc. and Fusarium oxysporum Schlecht. were the main pathogenic bacterias．The optimum field temperature was 25-30 ℃，and the most suitable pH value was 8.0 for the F. solani colonies growth. The F. oxysporum could grow with temperature between 10-30 ℃，while 25 ℃ and pH 7.0 is the optimum condition. Light had no significant effect on both main pathogenic bacteria.
王勇，张晶晶，叶阳阳，陈典. 黑龙江省依兰县酸浆根腐病病原菌鉴定及生物学特性初步研究[J]. 中国蔬菜, 2011, 1(14): 41-46.
WANG Yong，ZHANG Jing-jing，YE Yang-yang，CHEN Dian*. The Primary Studies on Pathogen Identification and Biological Characteristics of Physalis Alkekengi L. Root Rot in Yilan County of Heilongjiang Province. , 2011, 1(14): 41-46.
