This project conducted bacterial wilt pathogen inoculation tests using seeds harvested from superior resistant lines. The tests involved 11 eggplant rootstock and 5 tomato rootstock materials, totaling 16 resistant materials, along with two susceptible controls: Japanese eggplant (eggplant) and Nongyou 301 (tomato).

·  The 18 tested materials were distinctly classified into three groups:

• Group 1: Disease incidence <10%, exhibiting highly stable resistance. These materials reached peak disease levels 14 days post-inoculation, with all superior resistant lines’ self-saved seeds included in this high-resistance group.
• Group 2: Disease incidence between 25% and 50%, consisting of newly collected eggplant materials. These showed gradual disease progression during the investigation period and were categorized as moderately resistant.
• Group 3: Disease incidence between 75% and 100%. Disease levels peaked by 14 days post-inoculation, with all tomato materials falling into this group. The results indicate that current tomato materials are still ineffective against the bacterial wilt pathogen (Figure 1).