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This study was conducted to determine if selected strains of maize differed for yield stability when grown in a number of environments. Selections were based on F2 topcross results and F1 crosses were grown to check selection effectiveness. Results indicated that selecting for yield stability, as defined, was effective.
Key Words: Zea mays L. adaptability
2 Research Agronomist, Crops Research Division, ARS, USDA, (present address: Agronomy Department, Mississippi State University, State College, Miss.).
Received for publication February 7, 1967.
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