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稻白叶枯病是我省水稻重要病害之一。国内外研究和生产实践证明,利用抗性较强的品种来防治稻白叶枯病是经济有效的途径。为了选用抗性强、优势好的杂交稻,从1977～1985年对我院水稻所提供的早、晚栽培的杂交组合、不育系、恢复系、保持系400余个(次)进行了对白叶枯病抗性接种鉴定。 材料和方法 材料均由水稻所在栽培季节正常播种育 秧,1977～1978年是先在试验田内度过营养生长期,待出现剑叶时,将禾苗带泥移入直径1尺左右的瓦钵内,每品种四蔸(以下相
Rice bacterial leaf blight is one of the important diseases of rice in our province. Research and production practices at home and abroad have proved that the use of more resistant varieties to control bacterial leaf blight is a cost-effective way. In order to select the hybrid rice with strong resistance and good predominance, the hybrid combinations, sterile lines, restorers and maintainers of early-late rice provided by our hospital from 1977 to 1985 were conducted. Bacterial blight resistance inoculation identification. Materials and methods The materials were planted by the normal cultivation season of rice seedlings, 1977 ~ 1978 is the first to pass the vegetative growth period in the experimental field, until the flag leaves, the mud seedlings move into a diameter of about 1 foot in the bowl, each Variety four 蔸 (the following phase