Abstract

Abstract The influence of indolebutyric acid (IBA) and succinic acid-2,2-dimethyl-hydrazide (SADH) on the adventitious root formation of 4 species of woody plants was investigated at concns of 1000, 2500, and 5000 ppm applied as a 15 sec basal dip. At both the 5000 and 2500 ppm levels of IBA, Ilex cornuta Lindl. cv. ‘Burfordii’ and Juniperus horizontalis Moench. cv. ‘Plumosa’ responded with greater adventitious root formation than any of the SADH treatments. Increased adventitious root formation in Cupressus arozonica Greene, was observed only at the 5000 ppm level of IBA. Pinus strobus L. did not respond to any of the treatments.

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