Figure 2

Evolution of the proportions of necrotic, wilted and impacted tissues on bean leaflets using expert-based thresholding. Two weeks-old bean plants cv. Flavert were inoculated with either Xff CFBP4834-R (1.10⁶ CFU ml^_1) or mock. Observations were made on bean leaflets sampled at 1 dai, and everyday after the fourth dai. Percentages of diseased tissues and standard error of the mean were calculated for 20 leaflets per sampling day. The percentages do not include (A) or include (B) the estimation of the shrinking of the leaflet. The shrinking of the leaflet is attributed to necrotic tissues.