Maluf, A.M. Martins, P.S. Maluf, W.R. Persistencia de cotiledones na plantula como parametro para avaliacao da tolerancia ao aluminio em Leucaena leucocephala Cotyledon persistence in the seedling as a parameter for evaluation of aluminum tolerance: in Leucaena leucocephala Subjects--Topical Terms: LEUCAENAALUMINIOTOXIDEZ