Estimación del efecto de la sequía sobre la productividad de frijol variedad AGROSAVIA rojo 43 en el Caribe colombiano.

Objective. Determine the effect of drought on the productivity of the agrosavia Rojo 43 improved variety bean, under the bioclimatic offer of the Colombian Caribbean. Materials and methods. The formula described by FAO guide No. 33 was used, to quantify the reduction in productivity-yield in three municipalities with a productive tradition: Cereté (Córdoba), Codazzi and Pueblo Bello (Cesar) for consecutive sowing cycles, every ten days, between January 2010 and October 2019; Likewise, the statistical duration between said reduction and the Oceanic El Niño Index-ONI will be prolonged to establish its association with El Niño/La Niña South Oscilation ENSO. Results. An inverse behavior was identified between the accumulated loss of yield-productivity (PARP) and the accumulated precipitation in the crop cycle (Pa), which causes that in periods of extreme drought the modeled yields are reduced by 30% for Pueblo Bello, 25% in Codazzi and 20% in Cereté; likewise, a correlation of 0.25 (p=0.006), 0.14 (p=0.128) and 0.14 (p=0.138) was observed at the synchronous level between the ONI and the PAPR, respectively. Conclusion. The identification of the effect of drought on the variety serves as a basis for planting planning and achieving a yield close to potential. [ABSTRACT FROM AUTHOR]