This study aimed to evaluate 105 tomato accessions conserved in National Agrobiodiversity Center regarding their resistance to Ralstonia solanacearum, a soil-borne vascular bacterium that causes lethal wilt diseases of a wide range of crops worldwide. All the accessions are Solanum lycopericum var. lycopersicum including cultivar or breeding lines. At the four leaf stage, the seedlings were inoculated by drenching the soil with the bacterial suspension concentrated of 108 CFU/ml. Plant roots were wounded before inoculation by cutting with the knife. Seven accessions including IT 32899 were rated as resistant, while other 98 accessions were rated as susceptible. IT 32899 scored 0.1 of disease rate and 0.7 of disease index. The selected accessions will be used as a material to reveal the mechanism of wilt tolerance and to identify the host gene involved in defense response.

• On-Sook Hur(National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration) Corresponding Author
• Sang Gyu Kim(National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration)
• Ho-Cheol Ko(National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration)
• Su Ran Ahn(National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration)
• Jung-Sook Sung(National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration)
• Na-Young Ro(National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration)
• Sukyeung Lee(National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration)
• Yu-mi Choi(National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration)
• Do yoon Hyun(National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration)
• Kyoung-Yul Ryu(National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration)
• Hyung-Jin Baek(National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration)