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Table 2 EC50 values of ProS and ProHR isolates of Alternaria alternata from broccoli and cabbage

From: Biochemical and molecular characterization of Alternaria alternata isolates highly resistant to procymidone from broccoli and cabbage

Isolate

Sensitivity

Origin

EC50 (μg/mL)

Procymidone

Iprodione

Fludioxonil

C10

ProS

Cabbage

0.73 ± 0.13d

0.14 ± 0.07e

0.068 ± 0.005 cd

C28

ProS

Cabbage

0.92 ± 0.07c

0.53 ± 0.03c

0.075 ± 0.006c

B16

ProS

Broccoli

0.95 ± 0.11c

0.58 ± 0.12c

0.073 ± 0.006c

B21

ProS

Broccoli

0.98 ± 0.08c

0.43 ± 0.04d

0.085 ± 0.004c

C5

ProHR

Cabbage

>100b

>100b

>100b

C13

ProHR

Cabbage

>100b

>100b

>100b

C40

ProHR

Cabbage

>100b

>100b

>100b

B30

ProHR

Broccoli

>100b

>100b

>100b

B35

ProHR

Broccoli

>100b

>100b

>100b

B46

ProHR

Broccoli

>100b

>100b

>100b

B53

ProHR

Broccoli

>100b

>100b

>100b

B88

ProHR

Broccoli

>100b

>100b

>100b

B102

ProHR

Broccoli

>200a

>200a

>200a

B108

ProHR

Broccoli

>200a

>200a

>200a

  1. Means in a column followed by the same letter are not different according to Fisher’s least significant difference (P = 0.05). ProS, procymidone-sensitive isolates; ProHR, high-level procymidone-resistant isolates; EC50, effective concentration for 50% inhibition of mycelial growth