TY - REP AU - Renfro,B.L. TI - A seed production scheme designed for open-pollinated maize varieties PY - 1983/// CY - Mexico, DF (Mexico) PB - CIMMYT. Asia Regional Maize Program, KW - Crossbreeding KW - Germplasm KW - AGROVOC KW - Open pollination KW - Seed production KW - Seed testing KW - Varieties KW - Zea mays KW - Hybrids KW - Plant breeding N1 - Tables, graphs, references p. 12 ER -