茄子种质资源抗青枯病的鉴定与评价

Identification and Evaluation of Resistance to Bacterial Wilt in Eggplant Germplasm Resources

对304份茄子种质资源进行抗青枯病苗期人工接种鉴定,筛选出免疫材料10份,高抗材料51份,抗病材料35份,中抗材料32份,感病或高感材料176份,分别占鉴定材料的3.3%、16.8%、11.5%、10.5%和57.9%。茄子野生近缘种Solanum sisymbriifolium和S.torvum对青枯病有较强的抗病性,可作为茄子青枯病的抗源材料。获得4份抗青枯病的种间体细胞杂种。茄子对青枯病的抗性遗传较为复杂,主要由多基因控制。

304 accessions of eggplants were identified and evaluated for resistance against bacterial wilt by artificial inoculation at the seedling stage. The results showed that 10 of them were immune（I）, 51 highly resistant（HR）, 35 were resistant （R）, 32 were moderately resistant （MR）, and 176 were susceptible（S or HS）, representing 3.3 %, 16.8 %, 11.5 %, 10.5 % and 57.9 % of the plant materials tested. The wild species and relatives of eggplant Solanum sisymbriifolium and S. torvum were highly resistant to bacterial wilt. We obtained 4 somatic hybrid accessions of S. melongena with S. torvum and S. aethiopicum group aculeatum, which were highly resistant to bacterial wilt. The resistance to bacterial wilt in eggplant was controlled by multigene.