2.3. Statistical analyses
Disease incidence, expressed as the percentage of plants with
a positive result in the DAS-ELISA test, was statistically analyzed
with a factorial analysis of variance (ANOVA) using the Statgraphics
Plus software, v. 4.1. (Manugistics Inc., Rockville, MD, USA). Data
obtained for control pots containing non-inoculated residues of
tomato and pots containing infected debris were analyzed in terms
of dose, weeks of treatment and pot treatment, which were used as
fixed factors. The means of each treatment were compared using
the Least Significant Difference (LSD) test (P < 0.05). Regression
analysis was performed with the EXCEL program (Microsoft Office,
2007).
2.3. Statistical analysesDisease incidence, expressed as the percentage of plants witha positive result in the DAS-ELISA test, was statistically analyzedwith a factorial analysis of variance (ANOVA) using the StatgraphicsPlus software, v. 4.1. (Manugistics Inc., Rockville, MD, USA). Dataobtained for control pots containing non-inoculated residues oftomato and pots containing infected debris were analyzed in termsof dose, weeks of treatment and pot treatment, which were used asfixed factors. The means of each treatment were compared usingthe Least Significant Difference (LSD) test (P < 0.05). Regressionanalysis was performed with the EXCEL program (Microsoft Office,2007).
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