Figure 5.

Calonectria hemileiae application did not harm the photosynthetic capacity of the coffee plants whereas spraying with fungicide mixture reduced the photosynthetic capacity.

Net CO₂ assimilation rate (A) (A), stomatal conductance to water vapor (g_s) (B), internal CO₂ concentration (C_i) (C), and transpiration rate (E) (D) determined on the leaves of coffee plants at 20, 28, 36, 42, and 50 days after inoculation with H. vastatrix. The treatments used were plants sprayed with C. hemileiae before at 72 h (Ch/72Hv) and simultaneously with H. vastatrix (Ch/Hv). The Ch and Hv treatments were considered as controls for antagonist and pathogen, respectively, trifloxystrobin + tebuconazol was used as the fungicide treatment. Plants sprayed with sterile distilled water served as the control treatment. Treatments means with the same letters are not significantly different (p ≤ 0.05) as determined by Tukey's test. Bars represent the standard deviations of the means. n = 5.