Validating the NAAIC alfalfa grazing tolerance standard test and assessing physiological responses to grazing in a tropical environment - Pedreira, Carlos Guilherme Silveira; Silva, V. J; Ferragine, M. D. C; Bouton, J. H; Tonato, F; Otani, Lyssa; Basto, Debora de Carvalho (Crop Science, 2020)