Micropropagation of Juglans cinerea L. (Butternut)

  • P. M. Pijut
Part of the Biotechnology in Agriculture and Forestry book series (AGRICULTURE, volume 39)


The genus Juglans L. (family Juglandaceae) comprises about 20 species of deciduous trees. These monoecious trees are native to North and South America, and from southeastern Europe to eastern Asia (Bailey and Bailey 1976). They are grown as ornamentals, for the edible nuts, and some species for the fine-grained wood highly valued for furniture, veneer, gunstocks, and cabinet work. The Persian walnut (J. regia L.) is the most horticulturally developed and widely cultivated species for nut production (McGranahan and Leslie 1990). Worldwide production of walnuts in 1992 was listed at 918 180 metric tons, with the United States accounting for approximately 20% of world production at 181 400 metric tons (FAO 1992). Black walnut (J. nigra L.) is one of the most valuable hardwoods produced in the United States (Williams 1990). Eastern black walnut is also grown for the edible nuts, but it is the species valued economically for its high quality wood, prized for fine furniture, gunstocks, cabinets, and veneer.


Somatic Embryo Somatic Embryogenesis Embryogenic Callus Cotyledon Explants Plant Cell Tissue Organ Cult 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • P. M. Pijut
    • 1
  1. 1.North Central Forest Experiment StationUSDA Forest ServiceSt. PaulUSA

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