Evaluation of experimental corn hybrids from PRM in Central america.
The trial of experimental white corn
hybrids from PRM-2001 was evaluated in 14 localities in
Central America during 2001. The objective was to assess
their grain yield and agronomic characteristics of the
experimental hybrids. Twelve triple hybrids and one double
hybrid, bred from simple crosses from CIMMYT and
superior lines from different PRM projects, mainly of hybrids
and stunting , including one reference entry (CML 247 x
CML 254) and on control, were evaluated. A Complete
Randomized Experimental Block design with three
replication was used. The variables registered were: grain
yield, ear rot, male and female flowering, ear covering and
aspect, root and stalk lodging. The results obtained for grain
yield, through the 14 environments, varied between 4.75 to
6.37 t/ha, with a general media of 5.60 t/ha and variation
coefficient of 9.9%. In ear rot, the hybrids showed values of
4.3 and 8.0%, being lower than the controls.
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