80年代以来,甘薯茎线虫(Ditylenchusdipsaci Kuehu)病在我县发展蔓延快,为害渐趋严重,如大泉乡1985年发病面积仅530亩,至1989年已上升到6585亩,占甘薯总面积的54.2％,一些重病田绝产后,只得改种其它作物,为了寻求优良的抗病品种,探讨综合防治途径,我们连续3年对鲁-78066甘薯的抗病性进行了试验、示范,现将结果简报如下。 1988年选柳泉乡辛家村历年发病较重的甘薯地为试验田,山淤土,每小区面积0.03亩栽90株,重复3次,顺序区组排列,5月8日 Since the 1980s, the disease of Ditylenchus dipsaci Kuehu spreads rapidly in our county, causing serious damage. For example, in Daquan Township, the area of ​​disease was only 530 mu in 1985 and up to 6585 mu in 1989, accounting for 54.2 of the total area of ​​sweet potato %, Some serious disease field after abortion, had to be re-planting of other crops, in order to seek good varieties resistant varieties, explore ways of comprehensive prevention and control, we have three consecutive years of resistance to the disease of Rusu-78066 were tested and demonstrated, now the results briefing as follows. In 1988, selected Willow Township Xin Village over the years the incidence of heavier sweet potato as experimental field, mountain silt, each plot area of ​​0.03 acres planted 90 plants, repeated 3 times, the order of block arrangement, May 8