Comparison of the gompertz and verhulst models in the accumulation of calcium in common bean cultivar Jalo

Abstract

One of the ways to evaluate the biomass accumulation of common bean by means of some physiological process is to find an equation that expresses growth over time. The objective of this study was to model the macronutrient accumulation calcium, in the common bean cultivar Jalo, throughout its vegetative growth in five densities of with the use of nonlinear models of Gompertz and Verhulst. Through the regression equations obtained by fitting the nonlinear models of Gompertz and Verhulst, asymptotic weight parameter estimates indicate that as increased plant populations there was an increase in calcium accumulation over the days. Considering the Akaike criterion and the properties of both models, the nonlinear model of Verhulst presented better adjustment in all seeding densities, being more suitable for to describe the accumulation data of the total calcium nutrient of Jalo bean.