The main goal of researchers in genetic breeding programs is to select superior genotypes and recommend varieties through effective selection methods. Thus, the objective of this study was to evaluate the performance of Artificial Neural Networks (ANN) in predicting genetic values for progeny selection of Eucalyptus sp. For the training of ANN, 64 experiments were simulated that varied among means (5, 10, 15 and 20), heritability (10, 20, 30 and 40%) and coefficient of variation (10, 20, 30 and 40%). For validation of ANN, data from a progeny test of Eucalyptus camaldulensis was used.

The Atlantic Rainforest is a Neotropical plant formation, traditionally present in Brazil, Paraguay, and Argentina. In Brazil, it followed the country coastal zone, from Rio Grande do Norte to Rio Grande do Sul, reaching inland the Province of Misiones in North-Eastern Argentina, and east of Paraguay. It is a threatened tropical forest and its surface has been fragmented discontinuously due to intensive deforestation of the biome, mainly in the twentieth century. It still holds one of the greatest biodiversities on the planet.

The devastating damage caused by Teratosphaeria nubilosa in plantations of Eucalyptus globulus is forcing the replacement of this species in Uruguay. As there is no local availability of resistant genotypes, INIA reoriented its Tree Breeding Plan to the specific aim of developing clones with good performance against this disease. Genetic variation in disease resistance (% defoliation) and precocity of phase change (% of adult foliage) at 14 and 21 months of age was analyzed in five progeny tests (comprising 87 full-sib families) naturally infected by T. nubilosa in Southeastern Uruguay.

Many Teratosphaeria species are associated with leaf diseases on Eucalyptus spp. (Myrtaceae). However, only a few of these are major pathogens that cause serious losses, particularly to plantation forestry globally. Several species in the Teratosphaeraceae and Mycosphaereaceae species are known to occur in Uruguay where they cause leaf and shoot diseases on Eucalyptus plantations, but most are of minor importance. However, two species have had a serious negative impact on the performance of certain Eucalyptus species.

Many Teratosphaeria species are associated with leaf diseases on Eucalyptus spp. (Myrtaceae). However, only a few of these are major pathogens that cause serious losses, particularly to plantation forestry globally. Several species in the Teratosphaeraceae and Mycosphaereaceae species are known to occur in Uruguay where they cause leaf and shoot diseases on Eucalyptus plantations, but most are of minor importance. However, two species have had a serious negative impact on the performance of certain Eucalyptus species.

Objetivos de la presentación:- Brindar información sobre el retorno económico que podemos esperar utilizando algunas tecnologías clave en la cría extensiva - Mostrar el grado de adopción de algunas tecnologías en la región este del país.

Productivity and persistence of sown pastures remain the main demands of Uruguayans producers, immersed in a context of sustainable intensification of production systems, with adaptation to climate change. In INIA Uruguay we have developed a wide range of approaches to address these issues.

Productivity and persistence of sown pastures remain the main demands of Uruguayans producers, immersed in a context of sustainable intensification of production systems, with adaptation to climate change. In INIA Uruguay we have developed a wide range of approaches to address these issues.

Por primera vez AR584 se presenta como una potencial herramienta de control en el manejo integrado de plagas (MIP) en nuestro país, esta herramienta aportando flexibilidad al uso de químicos, implicando mejoras económicas, ambientales y más sustentables.