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Notes: In Vitro Propagation of the Endangered Virginia Roundleaf Birch (Betula uber [Ashe] Fern.) Using Dormant Buds

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Dormant buds collected from greenhouse and field-grown trees of Betula uber (Ashe) Fern., the endangered Virginia round-leaf birch, were used for micropropagation. A nutrient medium containing the mineral salts of Murashige and Skoog (1962) supplemented with organic nutrients and growth regulators supported bud break, elongation, and limited multiplication. Shoots were 2-3 cm in height with 3-4 leaves in four weeks. They developed roots in vivo in 4-6 weeks in peat pellets under high humidity conditions with 16 h photoperiod at a temperature of 20°C. For. Sci. 36(3):842-846.

Keywords: Tissue culture; micropropagation

Document Type: Miscellaneous

Affiliations: Associate Professor, Department of Forestry and Wood Products, Michigan Technological University, Houghton, Michigan 49931

Publication date: September 1, 1990

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