TY - JOUR AU - Caicedo-Guerrero, Samuel AU - Tibocha-Ardila, Yuli Stephani AU - Campuzano-Duque, Luis Fernando AU - Flórez-Gómez, Deisy Lorena AU - Arguelles-Cardenas, Jorge PY - 2020/01/01 Y2 - 2024/03/29 TI - Productive performance of seven soybeans genotypes in acid soils of the Colombian Orinoquía JF - Agronomía Mesoamericana JA - Agron. Mesoam. VL - 31 IS - 1 SE - Articles DO - 10.15517/am.v31i1.34440 UR - https://revistas.ucr.ac.cr/index.php/agromeso/article/view/34440 SP - 59-68 AB - <p><strong><span class="CharOverride-2">Introduction.</span></strong> In Colombia, soy is one of the main raw materials for the production of feed for animals, demand that was only satisfied in 7% in 2007. In the country, this legume is only produced in the Orinoquía region, as part of the rice-corn-soybean rotation system, and its current commercial production is associated with the Soyica P-34 (Altillanura) and Corpoica Superior 6 (Piedemonte) varieties, which are susceptible to <span class="CharOverride-4">Cercospora sojina</span>, which compromise yield. <strong><span class="CharOverride-2">Objetive.</span> </strong>The objective of this work was to identify soy genotypes with specific adaptation for acid soils oxisoles (Altillanura) and inceptisoles (Piedemonte) with superior grain yield a lower affectation by <span class="CharOverride-4">Cercospora sojina </span>K. Hara.<span class="CharOverride-2"><strong> Materials and methods.</strong> </span>An agronomic evaluation test (PEA) consisting of seven genotypes and two commercial varieties was carried out as controls in six localities located in two sub-regions of the Orinoquía (Altillanura and Piedemonte) during 2011, in a randomized complete block design (DBCA) and four repetitions. The AMMI model and its biplot graph were used to determine the phenotypic stability with the variable grain yield.<strong> <span class="CharOverride-2">Results.</span></strong> The AMMI model explained 81.8% of the genotype x locality interaction with the first two main components, the biplot graph allowed to identify three soy genotypes candidates for variety, two with specific adaptation for the Altillanura (L-062 and L-103), and one for Piedemonte (L-189). These genotypes showed higher grain yields by 8% and a lower affectation by <span class="CharOverride-4">Cercospora sojina</span> in relation to commercial witnesses.<strong> <span class="CharOverride-2">Conclusion.</span></strong> The study allowed three soy genotypes to be selected and registered as commercial varieties in the National Cultivation System of the ICA as Corpoica Guayuriba (L-189), Corpoica Achagua (L-062) and Corpoica Iraca (L-103), according to their specific adaptation by sub-region.</p> ER -