The irrigation method was employed to conduct a potted experiment on 45 different inbred lines of pepper, during which various agronomic traits as well as physiological and biochemical parameters of the plants were assessed.The results revealed significant variations in disease resistance among different inbred lines, with the incidence of 8 inbred lines (RT19-248, RC17-555, YJ-24, NJ-07, 702, 298a , CF19 and CF20) being less than 20%. Conversely, seven inbred lines (Wang H242-1, XJ-19, NJ-08, CB3, CC4, CC7 and CF9) exhibited an incidence rate exceeding 80%. The plant height, aboveground fresh weight, and nitrogen content exhibited significant differences after 20 days of inoculation compared to the control group. Correlation analysis revealed a negative correlation between disease incidence and both plant height and fresh weight, while a positive correlation was observed with nitrogen content. The results demonstrated