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自1992年北方掖单2号制种田矮花叶病大发生以来,感病品种逐渐增多,感病程度越来越重,对制种产量影响极大,有的品种几近绝产,给玉米种子生产造成了严重的损失。几年来,作者在工作实践中,进行了系统的试验、调查,初步摸索出矮花叶病在制繁种田中的发生规律,并制定一套综合防治技术措施,取得了一定效果。在此与同行商讨,希望能对种子生产起到积极的作用。
Since 1992, the Yedang No.2 system in the north of China has witnessed the emergence of short leaf mosaic disease, the susceptible varieties gradually increased, more and more susceptible to the impact of seed production, great impact, and some varieties almost absolutely give corn Seeds produced a serious loss. In the past few years, the author conducted systematic tests and investigations in his work practice, and initially found out the law of occurrence of dwarf mosaic disease in the process of making farmland and made a set of comprehensive technical measures for prevention and control and achieved some results. In this discussion with their peers, hoping to play a positive role in seed production.