Micronutrients seasonal variation in leaves that are necessary to get good productivity and quality in (Malpighia emarginata DC.) (Acerola) fruits are little known. For better acquaintance of the dynamics or absorption and the of this plant, foliar amount of Cu, Fe, Mn and Zn was evaluated in six lineages of acerola plant from December,1999 to October,2000. Field experiments were carried out at the Embrapa Tropical Agroindustry, Pacajus experimental field, with 6 lineages (P52, P66, P78, P91, P93 and P97) and 6-leaf-sampling (December, February, April, June, August and October of 2000). The seasonal variation was confirmed in leaves for amounts of Cu, Fe, Mn and Zn. The amount of Zn did not suffer significant alteration in the lineages considered for the research. The amount of Cu was higher in February, while Fe and Mn in August. The lineages presented different abilities to keep Cu, Mn and Zn concentrations in leaves. For diagnosis of the plant nutritional state, the best time for leaf sampling was at the beginning of the bloom, during October, when the amount of Cu, Fe, Mn and Zn reached the contends of than 3, 125, 80 and 15 mg/kg.
Malpighia emarginata; sazonality and vegetal nutrition
