HEPPERLY, P. R. Purple Seed Stain Incidence Among Soybean Cultivars and Between Seasons in Puerto Rico. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 68, n. 1, p. 87–99, 1984. DOI: 10.46429/jaupr.v68i1.7263. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/7263. Acesso em: 16 aug. 2022.