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COMBINING ABILITY OF INBRED LINES DERIVED FROM A YELLOW FLINT MAIZE SYNTHETIC CMS 53

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Author(s): ELTO EUGENIO GOMES E GAMA | WALTER FERNANDES MEIRELES | PAULO EVARISTO GUIMARÃES | ROMÁRIO GAVA FERRÃO | SIDNEY NETO PARENTONI | CLESO ANTÔNIO PATTO PACHECO | MANOEL XAVIER DOS SANTOS | ANTÔNIO CARLOS DE OLIVEIRA

Journal: Revista Brasileira de Milho e Sorgo
ISSN 1676-689X

Volume: 2;
Issue: 3;
Start page: 97;
Date: 2003;
Original page

Keywords: Zea mays L.: diallel | inbred lines | combining ability | ear yield

ABSTRACT
The objectives were to study the combining ability of lines, derived from synthetic maize (Zea mays L.) CMS 53, in a diallel crosses, to identify lines for developing more stable and superior yielding hybrids combinations with a dent heterotic group. The 9 inbreds were crossed to form 36 single crosses, in 1999. Parental inbreds and crosses together with a single cross commercial hybrid were evaluated using a randomized complete block design with 2 replications in four locations during the 1999/00 summer season. Data were collected for several agronomic traits, but only ear yield (kg ha-1) is discussed. For the analysis of this trait, Griffing´s (1956) method 2, was used. The combining ability showed highly significant (P
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