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Proceedings of the International Plant Propagator's Society

Vol. 40

Title:
PROPAGATION BY SOFTWOOD CUTTINGS OF GLEDITSIA, AMELANCHIER, BETULA, AND OTHER TREES

Author:
William G. Woodruff

pp: 512-513

Abstract:
The apparent vigor, vitality, and increased growth rate of trees on their own roots when compared to trees produced by other methods, justifies looking further and harder at propagation procedures.

Our methods of trying to propagate trees by softwood cuttings utilizes double-layer, inflated polyhouses, 30 × 95 ft with a 2 ft hard sidewall insulated for cold protection. The overhead mist system we use has Eddie mist nozzles, water pressure of approximately 50 psi controlled by a variable timer. The procedure starts with 10 sec of water every four min, depending on the weather. We use well water, approximately 58°F, with a pH of 7.2.

The rooting containers used are 2 3/8 or 3 5/8 in. "Anderson" bottomless tree pots placed directly on plastic net floor covering, over well-drained sand. The rooting medium is a peat and perlite (1: 1, v/v) mixture. The peat is steam-sterilized, then mixed with the perlite.

The floor and the pots are treated with Physan before the pots are lined out to receive

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