TY - SER AU - Matanna,R.S AU - Vieira,M.A.R. AU - Marchese,J.A. AU - Ming,L.C. AU - Marques,M.O.M. TI - Shade level effects on yield and chemical composition of the leaf essential oil of Potbomorphe umbellata (L.)Miquel KW - PLANTA MEDICINAL KW - SOMBREAMENTO KW - COMPOSIÇÃO QUÍMICA KW - ÓLEO ESSENCIAL ER -