甘薯瘟病(Pseudomonas solanacearum)是甘薯生产上的一种毁灭性病害。近年来已在我省45个(县) (市)发生为害,我们于1979年用“普薯125”与“南灰3号”杂交育成“闽抗329”。作者在1981—1984年对“闽抗329”进行了室内抗瘟性、田间苗期抗瘟性、田间小区和全省重点薯瘟区多点重复试验。三年试验表明用66个不同毒力的菌株测定“闽抗329”平均病情指数为7.4,而我省当家种“新种花”达47.7;田间 Pseudomonas solanacearum is a devastating disease in sweet potato production. In recent years, it has been harmed in 45 counties (cities) in our province. In 1979, we crossed “Minshu 329” with “Putu 125” and “South Ash 3”. In 1981-1984, the author carried out indoor resistance to “Min Kang 329”, field blast resistance in field, multi-point repeated trials in field plots and key blast areas in the province. The three-year trial showed that the average disease index of “Min Kang 329” was 7.4 when tested with 66 strains of different virulence, while that of the “New Breed Flower” was 47.7 in our province.