TABLE 3.
Growth parameters of selected B. cinerea and B. fragariae strainsa
| Species and strain | Mean radial growth on agar after 72 h (mm) ± SD |
Mean sporulation on agar (105 conidia cm−2) after 9 days ± SD |
Mean conidial length, width (μm) ± SD | ||
|---|---|---|---|---|---|
| GB5 | MA | GB5 | MA | ||
| B. cinerea | |||||
| B05.10 | 8.8 ± 1.3 | 9.9 ± 0.7 | 11.8 ± 3.6 | 12.7 ± 2.6 | 9.9 ± 1.3, 7.0 ± 0.9 |
| D13_F_Ju3 | 6.1 ± 1.9 | 5.0 ± 1.5 | 8.2 ± 6.8 | 7.6 ± 1.4 | 11.9 ± 1.8, 8.5 ± 1.2 |
| D13_F_Me1 | 5.8 ± 0.7 | 8.4 ± 2.2 | 7.1 ± 3.4 | 4.8 ± 1.1 | 9.3 ± 1.2, 7.2 ± 0.9 |
| All | 6.9 ± 2.0 | 7.7 ± 2.6 | 9.0 ± 2.8 | 8.3 ± 5.8 | 10.4 ± 2,2, 7.5 ± 1.2 |
| B. fragariae | |||||
| D11_H_R4H-R4 | 2.6 ± 0.8 | 3.0 ± 0.8 | 3.2 ± 1.2 | 2.4 ± 2.4 | 8.7 ± 1.5, 6.2 ± 0.7 |
| D13_HJ2-34 | 3.5 ± 1.7 | 5.2 ± 2.0 | 3.7 ± 3.5 | 7.0 ± 2.3 | 10.0 ± 2.2, 7.1 ± 1.2 |
| D13_F_Me3 | 3.6 ± 1.6 | 5.5 ± 1.7 | 4.5 ± 1.2 | 1.9 ± 0.9 | 10.2 ± 1.9, 7.2 ± 0.8 |
| D13_F_Ju10 | 2.1 ± 0.5 | 4.4 ± 1.7 | 5.1 ± 2.1 | 7.5 ± 0.3 | 9.3 ± 1.8, 6.0 ± 0.5 |
| All | 3.0 ± 1.4 | 4.5 ± 1.9 | 4.1 ± 1.7 | 5.3 ± 3.3 | 9.6 ± 1.9, 6.6 ± 1.0 |
a
Growth and sporulation data are the mean values of five and three biological replicates, respectively. Conidial sizes were determined from 100 conidia of each strain. Mean values of growth and sporulation of B. cinerea and B. fragariae are significantly different (P < 0.0001), except for sporulation on MYA. Mean conidial sizes were also different (length, P = 0.013; width, P < 0.001 [two-sided t test]).