Type III F tests for the main, two-way and three-way interaction effects of irrigation levels, tomato cultivar, <i>Salmonella</i> strain, tomato maturity, and sampling on the susceptibility of the tomato to proliferation of <i>Salmonella</i>.

An asterisk (*) indicates statistically significant interactions between variables. 1“Time of harvest” refers to the field sampling date (Spring 2011, Spring 2012 and twice in Fall 2012).