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前言烟草花叶病(TMV 和 CMY)俗称烟草的“癌症”,近几年来危害日益加重。1986年河南的许昌、临颍、襄城、郾城等五县,前期严重感病2.6%,中度感病3.6%,轻度感病9.6%,收获时损失严重,有些严重的地块造成绝产。由此而见,烟草花叶病对发展优质烟尤为不利。本试验在前人工作的基础上,进一步了解烟草花叶病对产量和质量的影响,以及防治与经济效益的关系,为防治烟草花叶病提供科学的理论依据。
Preface Tobacco mosaic disease (TMV and CMY), commonly known as “cancer” of tobacco, has become more and more harmful in recent years. In 1986, the five counties of Xuchang, Linying, Xiangcheng and Tancheng in Henan Province had serious pre-illness 2.6%, moderate flu 3.6% and mild flu 9.6%, causing serious losses in harvesting and some serious land parcels Absolute. As a result, tobacco mosaic disease is particularly detrimental to the development of quality tobacco. Based on the previous work, we further understand the effects of tobacco mosaic on the yield and quality, and the relationship between prevention and control and economic benefits, so as to provide a scientific theoretical basis for the prevention and control of tobacco mosaic disease.