Effect of plant density on grain yield, root-length density and Orobanche crenata infestation in two faba bean genotypes

cantidad de semilla requerida control cultural cultivars cultural control faba beans grain legumes haba leguminosas de grano lutte culturale malezas mauvaise herbe orobanche crenata parasitic plants plant population plante parasite siria sowing rates syria syrie variedades varieties vicia faba weeds