Fig. 2

Pathogenicity test of different pathogens associated with the bulb rot of tulip on variety Orange-Emperor using pin-prick method under laboratory conditions. (a) Pathogenicity test of A. niger The injured (left) and uninjured (middle) were dipped in spore suspensions of A. niger. The control (right) was dipped in sterilized water. (b) Pathogenicity test of P. chrysogenum The injured (left) and uninjured (middle) were dipped in spore suspensions of P. chrysogenum. The control (right) was dipped in sterilized water. (c) Pathogenicity test of B tulipae. The uninjured (left) and injured (middle) were dipped in spore suspensions of B. tulipae. The control (right) was dipped in sterilized water