稻粒黑粉病是杂交稻制种生产后期的重要病害,不仅造成大幅度减产,还会严重影响种子的质量及其商品品质。泰州市红旗良种场地处江苏里下河圩区,从事杂交稻制种生产已近20ａ,每年的制种面积800ｈｍ2以上,是稻粒黑粉病的重发病区。多年的田间调查资料显示,黑粉病的发病率都在... Rice powdery mildew is an important disease of hybrid rice seed production late, not only caused a significant reduction in production, but also seriously affect the quality of the seeds and their product quality. The red flag breeding ground of Taizhou City is located in the Lixia River polder area of ​​Jiangsu Province. It has been engaged in the production of hybrid rice for nearly 20 years and the annual seed production area is more than 800hm2. It is a recurrence area of ​​rice powdery mildew. Years of field survey data show that the incidence of smut are in ...