Grasslands are among the largest ecosystems in the world and consequently are of great importance to mankind. The genotypes of the species which are the main components of the grasslands have great influence on total outcome and successful utilization of grasslands. Therefore fodder crops and turf swards should be constantly improved to follow modern trends in agriculture production and landscape architecture. The wide range of breeding programs for forage and amenity species, as well as new breeding methods and techniques, is rapidly expanding the boundaries and is making it possible to achieve outstanding breeding results. This book includes papers presented at the 30^th EUCARPIA Fodder Crops and Amenity Grasses Section Meeting. The challenging title of the book focuses on breeding of quantitative traits, which directly impact the profitability and sustainability of grasslands and fodder crops production, as well as on multidisciplinary approach in grassland research and utilisation. Included papers offer a unique collection of ideas and breakthroughs in the fields of fodder crops and amenity grasses breeding and genetics, as well as in the creative and innovative application of new tools in practical breeding.