采用室内苗期人工接种鉴定方法,对黑龙江省市售的16份西、甜瓜栽培品种和84份种质资源进行了细菌性果斑病的抗病性鉴定。10份西瓜栽培品种中新红宝、京欣1号、双抗大地雷、特大庆红宝、超丰F1、庆发7号等6个品种表现为中抗;景丰宝和齐红西瓜表现为中感;吉福2号和庆农1号表现为感病;6份甜瓜栽培品种中齐甜1号、永甜3号和龙甜3号3个品种表现为中抗;日本甜宝和龙甜1号2个品种表现为中感;本甜3号表现为感病;西、甜瓜栽培品种中均未发现高抗及免疫品种。49份甜瓜种质资源中抗病材料占鉴定种质资源总数的57.1%,从中筛选出3份高抗材料分别为X11-3、X11-1和X11-8;在35份西瓜种质资源中抗病材料占鉴定总数的48.6%,从中筛选出2份高抗材料11W005和11W003。
In this study,in-door seedling-inoculation method was used to identify the resistance of 16 cultivars and 84 germplasm resources collected from Heilongjiang against Acidovorax avenae. Among the 10 watermelon cultivars,‘Xinhongbao’,‘Jingxin No.1’,‘Shuangkangdadilei’,‘Tedaqinghongbao’,‘Chaofeng F1’ and ‘Qingfa No.7’ were mid-resistant,‘Jingfengbao’ and‘Qihongxigua’ were mid-susceptible,and ‘Jifu No.2’,‘Qingnong No.1’ were susceptible. Among the 6 melon cultivars,‘Qitian No.1’,‘Yongtian No.3’and‘Longtian No.3’ were mid-resistant,‘Ribentianbao’ and ‘Longtian No.1’were moderate susceptible,and ‘Bentian No.3’ was susceptible. No high resistant and immune cultivar was found in watermelon and melon cultivars. Among the 49 melon germplasms the resistant resources accounted for 57.1%. X11-3,X11-1 and X11-8 were high resistant. Among the 35 watermelon germplasms,the resistant resources accounted for 48.6%,11W005 and 11W003 were high resistant.