TY - JOUR AU - Guerra, Fidencio AU - Fuentes, Mario AU - Cruz, Oscar AU - Espinoza, Alberto AU - Pixley, Leopoldo AU - Camargo-Buitrago, Ismael AU - Castellanos, Salvador PY - 2003/04/25 Y2 - 2024/03/28 TI - Evaluation of experimental corn hybrids from PRM in Central america. JF - Agronomía Mesoamericana JA - Agron. Mesoam. VL - 14 IS - 1 SE - Articles DO - 10.15517/am.v14i1.11985 UR - https://revistas.ucr.ac.cr/index.php/agromeso/article/view/11985 SP - 21-25 AB - <p>The trial of experimental white corn</p><p>hybrids from PRM-2001 was evaluated in 14 localities in</p><p>Central America during 2001. The objective was to assess</p><p>their grain yield and agronomic characteristics of the</p><p>experimental hybrids. Twelve triple hybrids and one double</p><p>hybrid, bred from simple crosses from CIMMYT and</p><p>superior lines from different PRM projects, mainly of hybrids</p><p>and stunting , including one reference entry (CML 247 x</p><p>CML 254) and on control, were evaluated. A Complete</p><p>Randomized Experimental Block design with three</p><p>replication was used. The variables registered were: grain</p><p>yield, ear rot, male and female flowering, ear covering and</p><p>aspect, root and stalk lodging. The results obtained for grain</p><p>yield, through the 14 environments, varied between 4.75 to</p><p>6.37 t/ha, with a general media of 5.60 t/ha and variation</p><p>coefficient of 9.9%. In ear rot, the hybrids showed values of</p><p>4.3 and 8.0%, being lower than the controls.</p> ER -