Figure 8.

Analysis of roots between the contrasting genotypes grown in hydroponics. (a) Representative photos of diazotrophic-free plants grown four days after transfer to hydroponics demonstrate the differences observed in the quantitative analysis of control plants. Evaluation of crown (b) and (c) lateral roots, and % of increase in (d) crown and lateral root number (e) in plants inoculated with G. diazotrophicus. Analyses were performed 0, 4, 7, 10, 15 and 30 days after inoculation. The symbol (*) indicates significant differences between SP and CH control plants at the same time point. The symbol (#) indicates significant differences between control and inoculated plants of the same genotype at the same time point. The (+) sign indicates significant differences between SP and CH inoculated plants at the same collection point. Bars indicate mean ± standard error of three independent experiments.