Santos, D.N. dos Nunes, C.F. Soares, J.D.R. Valente, T.C.T. Alves, E. labory, C.R.G. Pasqual, M. Cytological characterization of Jatropha curcas callus in different periods of cultivation Subjects--Topical Terms: PINHÃO DE PURGAJATROPHA CURCASBIOTECNOLOGIACITOLOGIA