Figure 1.

Comparison of agronomic performance in two different genotypes. (a) Yield in field conditions. Yield measured as green coffee per hectare results from field evaluations conducted in Equator and Colombia between 2004 and 2009. Caturra line and GPFA124 hybrid are in dark and light gray, respectively. (b) Quantity of rust per infected leaf area (also named ‘sporulation’) produced by H. vastatrix 43 days post-inoculation in abiotic stress conditions (1000 PAR and low levels of nitrogen fertilization). The inbred line Caturra and the hybrid GPFA124 are, respectively, in dark and light grey. The data are means of the rust weight harvested on the coffee tree 43 days post-inoculation per infected leaf area ± SD (n = 4). Means for a genotype followed by an asterisk (*) are significantly different according to student tests (p < 0.05). The yield was higher and the sporulation was lower, in the GPFA124 hybrid compared to the inbred Caturra line.