ISHS Acta Horticulturae 290: Genetic Resources of Temperate Fruit and Nut Crops
WALNUTS (JUGLANS) |
| Authors: | G. McGranahan, C. Leslie |
| DOI: | 10.17660/ActaHortic.1991.290.20 |
| Abstract:
All walnut (Juglans L.) species produce edible nuts, however, the English or Persian walnut (J. regia L.) is the most horticulturally developed and widely cultivated and it is easily the leading producer of commercial nuts. The nuts of the other species are encased in thick hard shells which seriously hinder their extraction and utilization. A small industry has developed for the eastern black walnut (J. nigra L.) and a few butternuts (J. cinerea L.) are also marketed but the nuts of most other walnut species are only of local value. Some Juglans species play an important role as rootstocks for commercial Persian walnut orchards; their use and potential in this regard has been recently reviewed (McGranahan and Catlin, 1987). | |
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