FIG 2.

Diversity of bacterial communities associated with tomato. Bacterial diversity was evaluated for the endosphere and rhizosphere from two hybrid rootstocks (RST-04-106 and Maxifort) and nongrafted and self-grafted controls (BHN589) in a mixed-model analysis of variance (ANOVA). Rootstock treatments were compared with the study site as a random factor within each year. The plot is horizontally faceted by rootstock treatments, and the vertical facets represent sample years. Shannon entropy (a measure of α-diversity) was higher for Maxifort than that of the nongrafted controls (P < 0.05). There was strong evidence that Shannon entropy differed for treatment combinations with different letters (P < 0.05).