Table 3

Summary of ANCOVA results for infection efficiency
Source DF Type II SS F p
Block 1 15.785 131.67 <0.0001
Pathogen 4 6.503 13.560 <0.0001
Whole-plot error 44 5.275 0.568 0.9504
Inoculum dose 1 1.156 5.478 0.0275
Host 14 1.262 0.427 0.9500
Pathogen x Host 16 2.272 0.673 0.7928
Split-plot error 25 5.275

The response variable is pustule density (pustules per cm2 of leaf tissue) and was used as the response variable and it was log transformed before analysis. Log transformed inoculum dose (spores deposited per cm2) was used as a covariate. The interaction effect of pathogen genotype by inoculum dose was not significant and was removed from the model.

Bruns et al.

Bruns et al. BMC Evolutionary Biology 2012 12:135   doi:10.1186/1471-2148-12-135

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