2.7. Statistical analysis
Statistical analysis was performed by SAS software (SAS Enterprise
Guide 4.2, SAS Inst., Cary, N.C., U.S.A.) in order to determine
the significant differences in growth rate, lag time and TTD of the
strains used in the Bioscreen C assays. Data were subjected to
ANOVA and the differences between effects were assessed by a
post-hoc Tukey test. The significance level was set at p < 0.05. The
percentage of implantation of a given inoculated strain was ascertained
according to a sampling plan based on the binomial distribution
(Peña Sánchez de Rivera, 1986). The implantation
breakpoint, defined as a percentage of colonies that showed the
same RAPD profile as the parental strain, was set at 80%.