关键词: 甘蓝, 甘蓝枯萎病, 抗病材料筛选, 抗性遗传规律, 尖孢镰刀菌

Abstract: One hundred and seventeen cabbage inbred lines were evaluated for their resistance to Fusarium wilt through being inoculated with pathogen FGL③-6，which was isolated from diseased cabbage in Yanqing，Beijing. Forty-seven materials were resistant，with 37 of them showing high resistance. The correlations of their resistance with geographic origins，with types and leaf colors were analyzed respectively. The result showed that materials with high resistance were mostly from Japan，Korea，Russia，Netherlands，etc.；More inbred lines with high resistance possessed flat head and grey-green leaf，while no resistant material was found in pointed head type. With repeated experiments and field tests，5 inbred lines with high resistance to cabbage wilt and excellent economic traits were screened out. Comparison experiments between FGL③-6 from Yanqing and Race 1 FOAM from USA were performed on 21 materials and the results suggested that the same material exhibited similar resistance to the two pathogen strains. Study on the pathogen Race 2 from USA indicated that it possessed stronger pathogenicity. 8 cabbage hybrids，all with one parent resistant and the other susceptible，were evaluated for resistance inheritance. 2 of the 8 F1 hybrids were used for creating F2，BC1-P1 and BC2-P2 separately and all populations produced above were used for resistance inheritance analysis. It showed that the inheritance of resistance to Fusarium wilt in cabbage was dominant single gene pattern.

Key words: cabbage, resistant resources, inheritance of resistant gene, Fusarium oxysporum