Characteristics of certified varieties of field crops and their regionalization (Pt.1) (Review)

agronomic characters avena sativa climatic factors contenido proteico cultivos de invierno cultivos de primavera culture d'hiver culture de printemps facteur climatique grain granos hordeum vulgare lens culinaris pisum sativum plant condition protein content rendement rendimiento resistance to injurious factors secale cereale site factors soft wheat spring crops triticale triticum variedades varieties winter crops yields