THE SUMMER PROPAGATION OF CONIFER CUTTINGS UNDER INTERMITTENT MIST*
Conifer cuttings are usually collected in the winter months after sticking and root very slowly, even under greenhouse conditions. Rooting periods six to eight months in length are not uncommon for some species. In view of this, successful evergreen propagation outdoors in the relatively short summer season was not anticipated. Limited tests, however, with small numbers of cuttings gave encouraging results under mist during the 1955 to 1958 seasons. When the results were evaluated, it was apparent that this type of propagation had promise, but the data lacked the scope and continuity to establish definite trends. Accordingly, in 1959, experiments were initiated to establish hormone and propagation bed requirements.
There is some evidence in the literature to support the use of mist for the propagation of conifers during the summer. Fillmore (1) reported on the successful rooting of Chamaecyparis pisifera under mist outdoors in Nova Scotia. He also reported 100 percent rooting of Taxus media
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