INIA. Evaluación de Cultivares.Ing. Agr. (Ph.D.) Marina Castro. Téc. Agríc. Gan. Ximena Morales-Asistente de Investigación Beatriz Castro-Téc. Univ. en TI Valeria Cardozo(Asistentes de Información y Proc. de datos).Ing. Agr. Santiago Manasliski(Ensayos regionales Young). Calidad de Granos.Q.F. (Ph.D.) Daniel Vázquez.Téc. Quím. Pierina Clérici. Protección Vegetal.Ing. Agr. (Ph.D.) Silvia Pereyra (fitopatología).Ing. Agr. (Ph.D.) Silvia Germán (Mej. por resistencia).Tec. Agrop. Richard García (Mej. por resistencia). Tec. Lech. Néstor González (fitopatología).Tec. Agrop.

Para lograr una producción sostenible, es necesaria la sinergia de la ciencia y la tecnología con los sistemas sociales, económicos y ambientales. Mejorar genéticamente plantas y animales es uno de los aportes más importantes que la investigación científica y tecnológica puede realizar para asegurar la sostenibilidad de los sistemas de producción.

Metagenomic investigations have the potential to provide unprecedented insights into microbial ecologies, such as those relating to antimicrobial resistance (AMR). We characterized the microbial resistome in livestock operations raising cattle conventionally (CONV) or without antibiotic exposures (RWA) using shotgun metagenomics. Samples of feces, wastewater from catchment basins, and soil where wastewater was applied were collected from CONV and RWA feedlot and dairy farms.

Abstract: Aim Identify key factors driving legume seedlings performance in saline-sodic soils. Methods Five plots were established in paired subhumid steppes with saline-sodic soils dominated by Distichlis spicata or Panicum coloratum. In each plot, Lotus tenuis was sown in autumn and individual plants were collected close to nurse plants (dominant species), and in open areas, at the end of the cold and warm seasons.

Abstract:Aim Identify key factors driving legume seedlings performance in saline-sodic soils. Methods Five plots were established in paired subhumid steppes with saline-sodic soils dominated by Distichlis spicata or Panicum coloratum. In each plot, Lotus tenuis was sown in autumn and individual plants were collected close to nurse plants (dominant species), and in open areas, at the end of the cold and warm seasons.

Abstract:The aim of the present study was to evaluate the abundance and dynamics of white clover (WC) (Trifolium repens L.) under cattle grazing, in a stressful environment. To this end, we performed a 5-yr experiment in Buenos Aires province, Argentina, where treatments were low and high forage offers (LFO and HFO) of a tall fescue (TF) [Lolium arundinaceum Schreb. (Darbysh.)]?WC mixture and two sites regarding the initial existence of WC in the pasture (with and without white clover, WC+ and WC?).

La selección por resistencia a enfermedades es un objetivo relevante en programas de mejoramiento de cultivos. Insume inversiones sustantivas en "mejoramiento defensivo" para evitar retrocesos en los incrementos de rendimiento.