Christina Rossini Pinto, Ana, José Carlos Barbosa, Taís Tostes Graziano, and Maria Esmeralda Soares Payão Demattê. 1996. “Leaf Area of Zinnia Elegans Jacq. Plants Submitted to Different Sowing Dates and Conduction Systems”. Ornamental Horticulture 2 (1):16-25. https://doi.org/10.14295/rbho.v2i1.115.