CONCENTRACIÓN DE MICRONUTRIMENTOS Y CRECIMIENTO DE RAÍZ EN VARIEDADES DE ARROZ EXPUESTAS A ALUMINIO MICRONUTRIENT CONCENTRATION AND ROOT GROWTH IN RICE VARIETIES EXPOSED TO ALUMINUM

affected. Concerning root length, the highest levels of Al in the nutrient solution significantly caused a reduction in this variable, and the varieties most affected were ‘Temporalero’ and ‘Tres Rios’. We conclude that Al differentially affects the rice genotypes evaluated, and that this metal shows diminished to Cu and Fe, and antagonism to Mn and Zn.