Nassar, N.M.A. Alleoni, M.R.B. A study of chiasma frequency in two brasilian races of maize and two single crosses [milho, Zea mays, cruzamento vegetal, Brasil] - [np](Brasil): 1975. - 7 p. 7 tables; 10 ref.; Summary (Eng); Reprinted from Maydica 20(1975): 125-131 Subjects--Topical Terms: MILHOVARIEDADEGERMOPLASMACRUZAMENTO VEGETAL