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赤霉病是我省小麦上的主要病害,流行频率高,为害大,损失重,对高产、稳产影响极大。同时,病粒食用后,还会引起人、畜中毒,必须认真对待,加以解决。据研究资料报道,关于导致小麦赤霉病的病原镰刀菌种类虽不尽一致,但绝对优势种为禾谷镰刀菌(Fusarium graminearumShwabe),则无异议。我省情况也基本相同。但生产实践表明,同一品种在不同地区、不同生境条件下,其抗性反应常有高有低,在气候、品种变化不大的情况下,这可能与病原菌的致病力差异有关。本试验主要是配合波阳湖区病虫考察工作,明确来自湖区县间生境条件下F·graminearum菌株的致病力(型),为湖区抗赤霉病育种、品种布局和防治提供依据。
Fusarium head blight is the main disease on wheat in our province. The epidemic frequency is high, the damage is big, the loss is heavy, which has a great impact on high yield and stable yield. At the same time, after eating the tablets, it will cause people and livestock poisoning and must be taken seriously and resolved. According to research reports, Fusarium graminearum (Shhobabe) is the most dominant species, although the species of pathogenic Fusarium causing head blight is not uniform. The situation in our province is basically the same. However, production practice shows that the resistance of the same species in different regions and different habitats is often high and low, and may be related to the pathogenicity differences of pathogenic bacteria under the conditions of little change in climate and variety. The experiment mainly cooperated with the investigation of pests in the Bo Yang Lake area, clarified the pathogenicity (type) of F. graminearum strain from the inter-county habitat in the lake area, and provided the basis for the breeding, variety distribution and control of FH graze in the lake area.