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关于毛竹枯梢病(Leptosphaeria sp.)初侵染来源问题,尚未见到报导。过去我们只是在越冬的病斑分离培养物上,见到该菌的有性世代(子囊孢子)和无性世代(分生孢子),由此推断病菌可以菌丝在病斑中越冬。但侵染来源于何处?尚未明确,而这影响到防治途径的确定,是一个亟待解决的问题。为此,1973年继续在德清县南路公社,对病害的侵染源及其与毛竹发病的关系,进行了一些探索。现将结果整理于后。一、毛竹枯梢病侵染来源的发现及其形态特征从4月上旬开始定期检查已往发病枯枝病斑部位,采集病竹枯枝及地面枯枝、落叶
There is no report on the origin of primary infection of Leptosphaeria sp. In the past we were only in the wintering spots isolating culture, see the sexual generation of the bacteria (ascospores) and clonal generation (conidia), inferring that the bacteria can overwinter in the lesion. However, the source of infection is not yet clear, which affects the determination of prevention and control approaches. This is an urgent issue to be solved. To this end, in 1973 continue to South Road, Deqing County commune, the source of disease and its relationship with the incidence of bamboo disease carried out some exploration. Now the results sorted in. First, the discovery of the source of moso blight and its morphological characteristics From the beginning of April began to regularly check the lesion spots of the past disease, the collection of diseased bamboo branches and ground branches, leaves