POTENTIAL OF OPEN CROSS CORN CULTIVARS IN ADVERSE ENVIRONMENT CONDITIONS
Abstract
Aiming to evaluate the potential of open cross com cultivars in adverse environment conditions, 46 coro genotypes were tested in 1993/94 and 1994/95. There were 34 landrace cultivars, 9 improved varietics and 3 commercial hybrids, used as control. The experimental design was the lattice (6 x 6), which 3 replications and two 5 m long rows as experimental units. No were realized soil correction (pH 5.1), nitrogen fertilization and pests control. The open cross cultivars showed similar yield potential to the commercial hybrids, and can be recommended to be used in low financial support rural properties. Some landrace cultivars, duc to it's yield potential combined which others agronomic interesting traits, deserve more attention from breeders in future works.
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