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Proceedings of the International Plant Propagator's Society

Vol. 22

Title:
VEGETATIVE PROPAGATION OF JAPANESE MAPLES AT KINSEALY

Author:
J.G.D. Lamb

pp: 240-242

Abstract:
In earlier trials on the propagation of Acer palmatum cultivars the methods similar to those described by Wells (1) and Anstey (2) gave satisfactory rooting percentages. Young, actively growing, shoots from outdoor trees wounded and treated with Seradix 3, rooted well in a mist unit but it soon became apparent that overwintering losses were high. Subsequent trials, therefore, dealt with cultivar difference in rooting ability and treatments to ensure better winter survival.

Over the three season, 1970–1972, the cultivar, Atropurpureum, has been one of the easiest to root. In April, 1970, cuttings were taken from mother bushes forced under glass. After potting the rooted cuttings, subsequent development was observed under three treatments:

  1. Pots plunged in a sheltered and shaded bed out of doors.
  2. Kept under glass, minimum temperature 15°C, ventilating at 27° C (sun heat)
  3. Same as for (2), but given a 17 hour day by means of 75 watt tungsten filament bulbs from August 19 to October 14

Overwintering

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