Table 2. Number of pots with Exserohilum leaf spots out of the total number of pots with plants inoculated with strains of Exserohilum or Bipolaris at six days after inoculation.
Plant type | C3 plant | C3 plant | C4 plants | C4 plants | C4 plants | C4 plants | +/total strains | +/total strains | +/total strains |
Grass species | Rye grass | Rye grass | Bahia grass | Bahia grass | Stilt grass | Stilt grass | All grasses | All grasses | All grasses |
Exserohilum strains | Trial1 | Trial2 | Trial1 | Trial2 | Trial1 | Trial2 | Trial1 | Trial2 | Both trials |
E. rostratum P2 | 2/10 | 11/12 | 2/10 | 10/12 | 6/63 | 12/12 | 10/26 | 33/36 x6 | 43/62 |
E. rostratum C | 3/10 | 12/12 | 4/9 | 9/12 | 6/6 | 12/12 | 13/25 | 33/36 x | 46/61 |
Bipolaris sp. | 1/10 | 12/12 | 3/10 | 5/12 | 6/6 | 12/12 | 10/26 | 29/36 y | 39/62 |
Total | 6/30 b4 | 35/36 A5 | 9/29 b | 24/36 B | 18/18 a | 36/36 A | 33/77 | 95/108 | 128/185 |
First trial had five replications (two pots per replication per treatment).
Second trial had four replications (three pots per replication per treatment).
Seeds of stilt grass had low germination; therefore, total number of plants are less for stilt grass than rye grass and bahia grass.
Different lower case letters indicate significant differences between plant species in the first trial (Chi2 tests = 32.1, P<0.001).
Different upper case letters indicate significant differences between plant species in the second trial (Chi2 tests = 23.3, P<0.001).
Different lower case letters indicate significant differences between pathogen strains in the second trial (Chi2 tests = 84, P<0.001). No significant differences between the isolates were observed in the first trial.