Vegetative propagation of Aquilaria crassna by stem cutting
1995
Sarayudh Bunyavejchewin (Royal Forest Dept., Bangkok (Thailand). Forest Research Office. Silviculture Research Div.)
Stem cuttings of Aquilaria crassna were treated with 0, 50 and 100 ppm of idole butyric acid (IBA) for 24 hours and planted in the baskets using sterile river sand as the rooting medium. After watering, the basket was kept inside the 20*24 inches plastic bag and tied its top. Stem cuttings separated into two portions, tip portion and semi-hardwood portion. Each cutting consisted of two buds. Twenty cuttings were used for each treatment. The experiments were conducted in January, March, June, September and November 1993. All treatments achieved 40-60 percent rooting and up to 95 percent rooting for semihardwood cutting in January. The control treatments in June yielded only 10-15 percent rooting. Number of roots per rooted cutting was increased with increasing of IBA concentration. Treatment with IBA did not conclusively improve rooting percentage (excepted in June).
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