Characteristics of certified varieties of field crops and their zoning (Review)

beetroot beta vulgaris brassica alba brassica napus climatic requirements crop yield disease resistance exigence climatique exigence des plantes flax graine de colza graine de lin lin linaza lino linseed linum usitatissimum necesidades de las plantas opio opium papa papaver somniferum pest resistance plant requirements pomme de terre potatoes rapeseed remolacha remolacha azucarera rendement des cultures rendimiento de cultivos resistencia a la enfermedad resistencia a las plagas semilla de colza solanum tuberosum sugar beet variedades varieties