甜瓜白粉病抗源鉴定与抗性遗传分析  

Identification and Preliminary Genetic Analysis of Resistance to Powdery Mildew on Melon

作　　者：王建设[1] 唐晓伟[1] 孟淑春[1] 宋曙辉[1] 陈贵林[2] 孙振英 李梅 

机构地区：[1]国家蔬菜工程技术研究中心,北京100089 [2]河北农业大学园艺系,河北保定071001

出　　处：《华北农学报》2002年第3期124-128,共5页Acta Agriculturae Boreali-Sinica

摘　　要：在空调温室利用风媒接种方法对从国内外搜集的 35 7份甜瓜种质资源进行了白粉病抗性鉴定 ,鉴定出 6 9份抗源 ,其中国外抗源品种有 5 2份 ;国内种业市场或育种单位搜集的当前推广的品种只有 10份抗白粉病 ;在所鉴定的 133份中国薄皮甜瓜和菜瓜地方品种资源中有 6份甜瓜和 1份菜瓜抗白粉病 ,表明中国甜瓜地方品种资源中蕴涵着潜在的改良甜瓜白粉病抗性的基因。抗源自交后代抗病株明显多于感病株 ,初步认为抗源基因的遗传可能表现为显性。We studied the resistance to powdery mildew in 357 varieties of melon in air conditioned greenhouse by wind media inoculation.The result showed that 69 varieties were resistant,52 of which come from foreign varieties,10 of which from seed markets or research institutes in China.6 var.makuwa makino and 1 var.flexuosus naud were resistant in 133 landraces on Melon.This indicated that the population of landraces has resistant genes which have a potential value to melon breeding.The number of resistant plants was bigger than that of susceptible plants in inbreeding off spring of resistant sources,and the inheritance of these resistant genes may be dominant.

关 键 词：甜瓜 白粉病 抗源鉴定 抗性 遗传分析 

分 类 号：S436.5[农业科学—农业昆虫与害虫防治]