Abstract To respond faster to the changing climate, evolving pathogens and to feed a global population of 9?10 billion by 2050, plant breeders are exploring more efficient crop improvement strategies. In this study, we applied novel methodology for rapid trait introgression to the European two-rowed barley cultivar Scarlett. Scarlett is widely-grown in Argentina and is preferred for malting and brewing, yet lacks adequate disease resistance. We used four donor lines combining multiple disease resistance (i.e.

Desde abril de 2015, en la Unidad de Biotecnología del INIA-Las Brujas se están generando las capacidades (equipo de trabajo e infraestructura) para la producción de Haploides-duplicados de arroz, trigo y cebada. Los trabajos tienen como objetivo generar material vegetal para acelerar el proceso de obtención de variedades de los programas mejoramiento genético de las especies mencionadas.

Desde abril de 2015, en la Unidad de Biotecnología del INIA-Las Brujas se están generando las capacidades (equipo de trabajo e infraestructura) para la producción de Haploides-duplicados de arroz, trigo y cebada. Los trabajos tienen como objetivo generar material vegetal para acelerar el proceso de obtención de variedades de los programas mejoramiento genético de las especies mencionadas.

ABSTRACT. The efficiency of cultivar trial networks is an important subject in official cultivar testing. We investigated this efficiency for malting barley (Hordeum vulgare L.) in Uruguay, using data on 213 cultivars tested across an eight-year period at six locations. The variance-components approach was used to quantify the effects of years, locations, sowing dates and replicates on the precision of cultivar mean comparisons. The relationships among testing environments and genotypic adaptation patterns were explored via biplots.

Abstract Ramularia collo-cygni is the biotic factor responsible for the disease Ramularia leaf spot (RLS) of barley (Hordeum vulgare). Despite having been described over 100 years ago and being considered a minor disease in some countries, the fungus is attracting interest in the scientific community as a result of the increasing number of recorded economically damaging disease epidemics. New reports of disease spread and fungal identification using molecular diagnostics have helped redefine RLS as a global disease.