Abstract

AYON VILLAO, Fernando et al. Effect of fertilization on growth and disease control in the coffee hybrid Sarchimoro 4260 (Coffee arabica L.). J. Selva Andina Biosph. [online]. 2023, vol.11, n.1, pp.22-32.  Epub May 01, 2023. ISSN 2308-3867.  https://doi.org/10.36610/j.jsab.2023.110100019.

In order to evaluate the effect of fertilization on the growth and disease control of the coffee hybrid Sarchimor 4260, a completely randomized block experimental design plot was implemented in a 4 x 3 + 1 factorial arrangement, where factor A was the types of fertilizers (A1: mycorrhiza + urea, A2: earthworm humus + urea, A3: agricultural gypsum + urea, A4: micro essential + urea and A5: Control in which only urea was applied), and factor B were the doses, in which 3 doses were applied for each product. The variables evaluated were plant height, stem diameter, crown diameter, number of branches, and severity of infection of rust (Hemileia vastatrix) and cock's eye (Mycena citricolor). The results showed highly significant differences (p<0.01) for the morphological variables. The best morphological response in the growth stage of the hybrid Sarchimor 4260 was for the application of earthworm humus at a dose of 1.0 kg/plant + urea and agricultural gypsum at a dose of 100 g/plant + urea. There was no incidence and severity of rust disease and rooster's eye. There was a high and positive correlation between plant height, stem diameter, and crown diameter.

Keywords : Incidence; production; coffee growing; genetic resistance.

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