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根据国内各地试验和近两年在地区内的调查证明,水稻白叶枯病的初次侵染的主要来源是带病种子,病菌主要存在于颖壳内,但从种子上分离出病原细菌却比较困难,用育苗检验的方法,既费时费工又秧苗期不易表现症状。因而为了探明用噬菌体测定水稻种子的带菌情况,在种子检疫上的应用价值,和能否作为病害分布的依据,我们于1978年与勃利、汤原、桦川、依兰、桦南县和佳木斯市的植保干部一起,在室内进行了此项测定工作。一、检测方法通过多点取样,选有代表性的发病田和未发病田的稻种作样品,每个样品作两次检
According to the domestic test and the investigation in the past two years in the region, the primary source of primary infection of rice bacterial leaf blight is the diseased seeds, while the pathogen mainly exists in the glume shell, but the pathogens are isolated from the seeds Difficulties, with seedling test methods, both time-consuming and seedling difficult to show symptoms. Therefore, in order to ascertain the phage determination of the carrying status of rice seeds, the application value of seed quarantine, and whether it can be used as the basis for the distribution of the disease, we in 1978 and Boli, Tangyuan, Huachuan, Yilan, Huanan County And Jiamusi City, plant protection cadres together, carried out in the indoor determination of this work. First, the detection method Through multiple sampling, select the representative of the onset and non-onset of rice seedlings as samples, each sample twice