In the Department of Nut Trees of the Hellenic Agricultural Organization (HAO)-Dimitra, a significant effort has been made, from 1985 until today, to create new, remarkable walnut varieties with high productivity and good fruit quality that are suitable for the soil and climatic conditions of Greece. Through these endeavors and specific crosses, a lateral-bearing cultivar has emerged with satisfactory characteristics: ‘Ourania’. This is a new walnut (Juglans regia) cultivar of Greek origin created by a cross between ‘Hartley’ and ‘Gustine’. It is a mid-to-late cultivar, with pomological characteristics similar to ‘Hartley’, but it presents a high, lateral bearing habit. It is a walnut cultivar of high importance not only for the region of Greece, but also for other countries. It is suitable for cultivation in semimountainous and mountainous areas, where the last spring frost occurs in mid-April.
International Plant Genetic Resources Institute 1994 Descriptors for walnut (Juglans spp.). International Plant Genetic Resources Institute, Rome, Italy
International Union for the Protection of New Varieties of Plants 1999 Guidelines for the conduct of tests for distinctness, uniformity and stability. Walnut (Juglans regia L.). UPOV-TG/125/6. International Union for the Protection of New Varieties of Plants, Geneva, Switzerland