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玉米丝黑穗病(SPHACELOTHEOAREiIAiNA)是玉米穗部病害之一,世界各国玉米种植区均有发生和危害。我国玉米产区,特别是春玉米产区发病较重。据调查一般发病株率为2～8％,重灾区可达10％以上。我黑龙江省西部,中南部山区、半山区及东部低湿地区均为重发病区,一般年份发病率为5～10％,重灾年发病严重地块,病株率可达50％以上。国内外研究和生产实践证明,培育抗病
Maize head smut (SPHACELOTHEOAREiIAiNA) is one of the maize ear diseases, maize planting areas in all countries have occurred and hazardous. China’s corn-producing areas, especially in the spring corn producing areas heavier. According to the survey the average incidence of strains of 2 to 8%, hardest hit up to 10% or more. I Heilongjiang Province in the western, central and southern mountainous areas, Mid-levels and the eastern part of the low wet areas are recurrent ward, the average annual incidence of 5 to 10%, severe disease in severe block, the strain rate of up to 50%. Domestic and foreign research and production practices have proved that cultivating disease resistance