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小麦赤霉病分布在长江中下游的主要麦产区以及粤、桂、闽、贵等省。近年来病区有进一步扩大的趋势。福建每年均有不同程度发生,某些地区病穗率达40—80％,减产3—4成,严重的甚至失收。为了发展小麦生产,加强小麦抗病育种工作,尽快选育一批既丰产、又抗赤霉病的新品种是当前南方麦区小麦育种工作的一项紧迫任务。 (一) 引起小麦赤霉病主要是禾谷类镰刀菌,有性阶段是玉米赤霉菌。这种病菌是兼性寄生菌,有较强的腐生性和致病性,专化性不强且
Wheat scab is distributed in the main wheat growing areas in the middle and lower reaches of the Yangtze River and in Guangdong, Guangxi, Fujian and Guizhou provinces. Ward in recent years have further expanded the trend. Fujian each year to varying degrees, disease panicle rate of 40-80% in some areas, cut 3-4 into, serious or even lost. In order to develop wheat production and strengthen the disease-resistant breeding of wheat, it is an urgent task to breed wheat breeding in the southern wheat area as soon as possible to select a new crop of both high yield and resistance to scab. (A) Fusarium head blight is mainly cereal Fusarium, sexual stage is Gibberella zeae. This bacteria is facultative parasites, has a strong saprophytic and pathogenic, specialization is not strong