Table 4

Summary of ANCOVA results for latent period
Source DF Type II SS F p
Block 1 8.238 26.612 <0.0001
Pathogen 4 3.595 2.903 0.0323
Whole-plot error 44 13.621 4.495 0.0002
Pustule density 1 2.301 33.407 <0.0001
Host 4 5.783 20.993 <0.0001
Host x Pustule density 4 0.757 2.746 0.0556
Pathogen x Host 16 1.292 1.173 0.3604
Split-plot error 21 1.446

The response variable is latent period, and it was measured as days until 50% of the pustules were producing spores. Log transformed pustule density (pustules per cm2 of leaf tissue) was used as a covariate. The interaction effect of pathogen genotype by pustule density 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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