籽用南瓜优质自交系白粉病抗性初步评价

摘要

In order to select good resistant inbred lines of seed-used pumpkin to powdery mildew disease,30 kinds inbred lines of seed-used pumpkin for resistance powdery mildew disease were identified in the natural condition.The results showed that there were no immune and high resistant types.There two resistant types,accounting for 6.7% of all appraisal inbred-lines,eleven of moderate resistant material,accounting for 36.7% and 17 susceptible types,accounting for 56.7%.The difference of seed-used pumpkin for resistance powdery mildew disease was significantly among inbred-lines.%为了筛选出优质的籽用南瓜白粉病的抗性自交系,在自然发病条件下,鉴定了30份籽用南瓜自交系白粉病的抗病性。结果表明：无免疫和高抗类型;抗病类型为2份,占所有鉴定自交系的6.7%;中抗类型为11份,占所有鉴定自交系的36.7%;其余为感病类型17份,占所有鉴定自交系的56.7%。籽用南瓜自交系对白粉病的抗性都存在显著差异。