Informe especial:Rotaciones cultivos-pasturas. Aprendiendo del experimento más antiguo de Latinoamérica:INIA La Estanzuela.

Abstract Plant breeding for the generation of cultivars adapted to local conditions has been an important and strategic concern of developing countries with agriculture-based economies. Considering economic constraints, breeders must improve genetic gain to increase the delivery of better cultivars with lower costs, through the implementation of molecular breeding and rapid generation advance.

REDBIO, fundada en 1990 por laboratorios y programas nacionales de biotecnología vegetal, y desarrollada con los auspicios de FAO hasta 2011, se ha destacado como la red de biotecnología más importante de América Latina y el Caribe.

RESUMEN. "INIA YRUPÉ" se recomienda para la producción de otoño, invierno y primavera bajo cultivo protegido. Posee un desempeño superior a 'INIA Ágata' en productividad semi precoz, arquitectura de planta, forma y sabor de fruta, con la ventaja de tener menor incidencia de botrytis, arañuelas y oidio.

Abstract: The domestication of plants, as a bio-cultural process, is a continuous phenomenon intrinsically associated with the use of plants. Traditional and scientific knowledge constitute the basis of the various uses of plants from in situ harvesting to complete domestication of crops. One of the most important challenges of our time is to achieve the conservation and sustainable use of plant genetic resources of landraces, species in the process of domestication and species used in situ.

Abstract: The domestication of plants, as a bio-cultural process, is a continuous phenomenon intrinsically associated with the use of plants. Traditional and scientific knowledge constitute the basis of the various uses of plants from in situ harvesting to complete domestication of crops. One of the most important challenges of our time is to achieve the conservation and sustainable use of plant genetic resources of landraces, species in the process of domestication and species used in situ.

Abstract. Acca sellowiana, known as 'Guayabo del País' or 'Pineapple guava', is a small evergreen ornamental fruit tree of the family Myrtaceae, native to Uruguay and south-eastern Brazil. It has excellent agronomical and commercial potential, high nutritional value, and is adequate for fresh consumption as well as for the elaboration of manufactured products. Several genotypes with outstanding fruit size and flavor have been selected in the breeding program for this species in Uruguay.

ABSTRACT. The manipulation of ploidy is a helpful tool in improving crops and grasses. Trifolium polymorphum (Poir.) (Leguminosae) is a native perennial stoloniferous winter species that combines different types of reproductive systems. This biological advantage makes T. polymorphum a remarkable issue of research. T. polymorphum belongs to the Campos region and has evolved into adapted ecotypes through long exposure to environmental stresses, grazing and by competing with the native C3 and C4 grasses which have dominated the Campos vegetation over a long period of time.