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玉米茎腐病(俗称青枯病)是世界性病害,发生普遍,为害严重,减产可达20～30%。近年该病在国内有加重趋势,已被列为“八五”攻关研究课题。在沈阳等7个市县对丹玉13号等7个主栽品种调查,常年发病率为10～15%。据对铁单8号等3个不同抗性品种上分别对发病2级和4级的病株抽样调查,平均损失率已达23%。因此,茎腐病已成为辽宁省玉米生产上亟待解决的重要病害。随着茎腐病研究的不断深入,适宜的人工接种技术正在成为影响该病科学研究的关键性环节。近几年,作者与国内同行进行各种接种技术的研究,取得了一些进展,但仍存在一些问题。为了加速研究进程,尽早明确该病发
Corn stalk rot disease (commonly known as bacterial wilt) is a worldwide disease that occurs prevalent, serious damage, cut up to 20 to 30%. In recent years, the disease is aggravating in the country and has been listed as an important research topic in the “Eighth Five-year Plan”. In Shenyang and other 7 counties, Dan Yu 13 and other 7 main cultivars were investigated. The annual incidence was 10-15%. According to three different resistant varieties of Tiedan 8, respectively, the incidence of grade 2 and 4 of the diseased samples were investigated, the average loss rate has reached 23%. Therefore, stalk rot has become an important disease to be solved in corn production in Liaoning Province. With the deepening of stalk rot research, suitable artificial inoculation technology is becoming a key link in the scientific research of the disease. In recent years, the author has conducted some researches on various inoculation techniques with domestic counterparts and made some progress, but some problems still exist. In order to speed up the research process, the onset of the disease as soon as possible