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近年来,郊区不仅后季稻穗颈瘟大流行,且早稻穗颈瘟也在局部地区引起大发生。稻瘟病流行的因子很多,主要是连日阴雨,雾露期长。因为,稻瘟病菌孢子的传播侵染,病斑的形成,孢子的产生都离不开水。为探明此问题,进行了以下调查和试验。一、水对穗颈瘟发生差异试验试验材料与方法:①稻株培育:品种为矮南早1号,播于盆钵里,培育到抽穗期。②病菌:选用籼型菌株ZB_1小种,用大麦粒培养基培养12～14天,接种前二天将长满菌
In recent years, the suburbs not only post-panicle pandemic pandemic, and early rice panicle blast also caused a large part of the local occurrence. There are many epidemic factors of rice blast, mainly the rainy days and the long foggy period. Because, Magnaporthe grisea spore spread infection, the formation of lesions, spores are inseparable from the water. To test this issue, the following surveys and experiments were conducted. First, the water on the panicle blast occurred differences in the test materials and methods: ① rice plant breeding: Variety for the short South as early as 1, sown in pots, to cultivate to heading date. ② germs: Indica ZB_1 races selected species, with barley grain culture medium for 12 to 14 days, two days before inoculation will be covered with bacteria