SOME TRIALS IN THE PROPAGATION OF ACER SPECIES BY CUTTINGS
Timothy C. Brotzman
The propagation of certain maples at Brotzman's Nursery began three years ago on a rather limited basis and remains so today. My initial efforts were stimulated by an interest in the genus and a desire to obtain some of the more uncommon and ornamentally desirable species. Though by no means complete or absolute, I would like to share with you results of my experiments.
Propagation facilities. The facility used is a 45 feet polyethylene covered hut with unheated ground beds 8 inches deep, filled with a propagation grade of silica sand. A 62% shade cloth covers the hut at all times. Inside summer temperatures and humidity can get very high, but neither seem to have an adverse effect on rooting.
Propagating procedures. Depending upon species and stage of growth, cuttings are taken from mature to semi-mature trees in late June through late July. Cuttings are of current season's wood, usually 4 to 8 inches long with the basal cut unrelated to node location. The bottom 1/3 to ½ of the
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