在最近中国农学会和中国农业科学院联合召开的全国棉花学术讨论会上,植保专业小组对当前棉花主要病虫害问题进行了深入的讨论,并对一些行之有效的防治措施,提出具体建议,供生产参考应用。 在棉病方面:通过讨论明确了棉苗叶病的发生规律;黄河流域烂铃的病原菌种类;稻棉输作、抗病品种的综合措施对棉黄、枯萎病的实施效果;石灰氮在防治黄萎病中的减病增产效果;以及苗期鉴定方法在抗病育种工作中的作用等问题。并就当前研究工作中存在的问题,如种子带菌检验方法,在抗病育种工作中植病工作者与育种家紧密配合,和今后的研究方向,都交换了意见。 At a recent national cotton symposium jointly held by the Chinese Agricultural Association and the Chinese Academy of Agricultural Sciences, the plant protection professional group conducted an in-depth discussion on the current major pests and diseases of cotton and made specific recommendations on some effective prevention and control measures for production Reference application. In the aspect of cotton disease, the rules of cotton seedling leaf disease were clarified through discussion; the pathogen species of rotten bollworm in the Yellow River valley; the effect of comprehensive measures on the resistance to cotton yellow and blight; Verticillium wilt reduction and yield increase effect; and seedling identification methods in the role of disease resistance breeding and other issues. And exchanged views on the problems existing in the current research work, such as the test method of seed-borne bacteria, the close cooperation between plant-disease workers and breeders in the disease-resistant breeding work, and future research directions.