El clima es uno de los factores más importantes en determinar el crecimiento y el desarrollo de animales destinados a la producción de alimentos y fibras. ---- 1. Introducción. Estrés calórico:importancia para el animal (producción ganadera y lechera), el productor, la sociedad y el ambiente. -- 2. Situación actual. -- 3. Tecnologías propuestas. -- 3.1. Sombra natural. -- 3.2. Sombra artificial. -- 4. Mejoras a partir de la provisión de sombra en sistemas de producción animal. --

El carbono orgánico del suelo representa un pilar fundamental para el desarrollo de la agricultura sostenible a nivel local, siendo el principal indicador de la calidad del suelo y de su potencial productivo. Adicionalmente, los suelos contienen la mayor reserva terrestre de carbono (C) a nivel global; por lo tanto, su secuestro tiene el potencial de reducir los gases de efecto invernadero y contribuir a la lucha contra el cambio climático. ---- 1. Importancia del carbono orgánico del suelo a nivel local y global. -- 1.1.

Rice in southern South America is mainly associated with livestock production in rotation with pastures of three to four years in length, but there is interest in intensifying production by increasing the frequency of rice, introducing new crops, or shortening the pasture in the rotation. However, little is known about the impact of this perturbation on agroecosystems resilience. In 2012, a long-term experiment was established in the main rice-producing area of Uruguay to study the impact of the intensification of rotations on the sustainability of rice systems.

Breeding programs generate vast amount of data which are often scattered in separate files. This hinders the application of modern breeding tools such as multi-environment analyses and genomic selection. This research work describes the process of consolidating 23 years of phenotypic, pedigree, and genomic records from the Uruguayan national rice (Oryza sativa L.) breeding program, and the features and structure of the resulting database.

Breeding programs generate vast amounts of data which are often scattered in separate files. This hinders the application of modern breeding tools such as multi-environment analyses and genomic selection. This dataset is the result of consolidating 23 years of phenotypic, pedigree, and genomic records from the Uruguayan national rice breeding program. All the available data from 1997 to 2020 corresponding to field trials, blast nurseries, laboratory analyses of milling and cooking quality, pedigree information, and genomic information for selected advanced breeding lines are gathered.

Rotational rice systems, involving pastures, other crops and/or livestock, are common in temperate South America, exemplified by the rice-pasture-livestock system of Uruguay which combines very high rice yields with tight nitrogen (N) balances. The generally good nutrient use efficiency in these systems provides a template for nutrient management in other mixed farming systems, if the underlying processes can be sufficiently well quantified and understood.