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白叶枯病是水稻三大病害之一,发生频次高,发病程度重.70年代六安地区白叶枯病发生严重.80年代初,由于采取以推广抗病品种为主的综合防治措施,病害基本得到控制.近两年特别是1987年,忽视了抗病品种的作用,扩大了感病的杂交稻,致使该病有很大程度的回升.在研究水稻白叶枯病发生规律的过程中,初侵染源的问题一直受到重视.50年代,南京农业大学和江西省农科院研究证明,我国水稻白叶枯病初次侵染源以稻种为主.60年
Bacterial blight is one of the three major diseases of rice, with high occurrence frequency and serious degree of disease.Seventy times of serious bacterial blight occurred in Lu’an area.In the early 1980s, due to adopting comprehensive prevention and control measures, The basic control of the disease in recent years, especially in 1987, ignored the role of resistant varieties and expand the susceptible hybrid rice, resulting in a large degree of recovery of the disease.In the study of rice bacterial leaf blight occurrence process In the 1950s, Nanjing Agricultural University and Jiangxi Academy of Agricultural Sciences have proved that the primary source of rice bacterial blight in our country is rice seed.