Report from the Danish State Seed Testing Station: Report from the purity department [multiple seed units]

avena avena fatua crops cultivos dicotiledoneas dicotyledons economic plants economic sectors ensayo ensayo de semillas escandinavia essai de semences europa europe evaluation feed crops feed grasses festuca glumiflorae gramineae gramineas graminee grasses industria industria de semillas industrie industrie des semences industry lawn grasses methode methods monocotyledons ornamental plants plantas plantas forrajeras plantas ornamentales plante plante de culture plante ornementale plants polygonaceae polygonales scandinavia scandinavie secondary sector secteur secondaire sector secundario seed industry seed testing testage testing