El género Paspalum comprende a 350 especies, mayormente americanas. Paspalum notatum es una especie de amplia distribución y gran variabilidad, con representantes diploides y poliploides, valiosa como forrajera y como césped. Fueron descriptas tres variedades botánicas, una de ellas, la var. saurae, correspondiente a los citótipos diploides, y las otras dos, var. latiflorum y var. notatum, a citótipos tetraploides.

In the warm-temperate regions of Uruguay and Argentina, the adoption of warm-season perennial grasses has been very limited. Slow and unpredictable establishment has been perceived as one of the most limiting factors for their use either as pure stands or in mixtures with cool season grasses. Among the best studied species are P. dilatatum and related species and P. notatum. In this study we analyzed a network of locations and sowing dates to understand the responses of single clone or inbred line of P. dilatatum cv. Chirú (Chirú), P. dilatatum ssp. flavescens (Flav), P.

In the warm?temperate regions of Uruguay and Argentina, the adoption of warm?season perennial grasses has been very limited. Slow and unpredictable establishment has been perceived as one of the most limiting factors for their use either as pure stands or in mixtures with cool season grasses. Among the best studied species are P. dilatatum and related species and P. notatum. In this study we analyzed a network of locations and sowing dates to understand the responses of these species to environmental factors and determine appropriate sowing dates.

RESUMEN. Los resultados de las primeras evaluaciones del Proyecto Ovejas Prolíficas de INIA (2008-2011) muestran que la cruza Frisona Milchschaf x Corriedale o Finnish Landrace x Corriedale desteta 60 % más corderos que la Corriedale pura y, por otro lado, la cruza Finnish Landrace x Frisona Milchschaf desteta 85 % más que la Corriedale pura. Sin embargo y bajo las mismas condiciones productivas, no se conoce el comportamiento al parto y la producción de calostro de estos nuevos biotipos.