Response mechanisms of Brachiaria brizantha cultivars to water deficit stress - Santos, Patricia Menezes; Cruz, Pedro Gomes da; Araujo, Leandro Coelho de; Pezzopane, José Ricardo Macedo; Valle, Cacilda Borges do; Pezzopane, Cristiana de Gaspari (Revista Brasileira de Zootecnia, 2013)