Abstract
The effect of IBA and two phenolic compounds have been examined for stimulatory effects on rooting of semi-hardwood cuttings of mature Ginkgo biloba L. trees. IBA alone did not exert a favourable influence on rooting but in combination with polyphenols, viz., catechin and phloroglucinol improved rooting and root growth characteristics. Amongst various treatments, IBA (500 mg/l) + catechin (5 mg/l) is superior over other treatments since 96% rooting was observed in this combination. This treatment could be used successfully for vegetative propagation of this species.
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