Estimating pasture aboveground biomass under an integrated crop-livestock system based on spectral and texture measures derived from UAV images

•UAV remote sensing is a feasible approach to estimate the aboveground biomass of herbaceous crops.•GLCM textures improved pasture estimates addressing internal image patterns.•Random Forest (RF) model solely with texture measures reached the best performance.•Selecting features by correlation improved the RF models' results and understanding.