甜瓜抗白粉病鉴定

利用风媒接种方法在空调温室初步鉴定了８份甜瓜一代杂种品种和１２份甜瓜地方品种对白粉病菌的抗性。结果表明，８份一代杂种品种均高度感病，在１２份地方品种资源中，１份资源宁夏厚皮甜瓜免疫白粉病，１份资源河套密瓜存在的免疫株系和感病株系；而其它均感病，这说明地方品种群体蕴藏着对改良甜瓜品种抗病性有潜在应用价值的基因资源。

Identification of Resistance to Powdery Mildew on Melon

In this study,the resistance to powdery mildew in 8 F 1 hybrid varieties and 12 landraces of melon in air conditioned greenhouse was preliminarily identified by wind media inoculation.The results showed that 8 F 1 hybrids were susceptible.Most of landraces were susceptible,1 landrace was immune,and 1 landrace had an immuned line and four susceptible lines. This indicated that population of landraces have resistant genes which have a potential value to melon breeding.