H, helix “Mandas Crested” was used as an experi mental material for the purpose that we tried to cease delay on the primary and proceeding growth which supposed on using Hedera genus for landscape planting by chemical control of vegitable holmon, gibberelline in this study.
We observed the effect which gibberelline gives on growth of Hedera genua after having sprinkled gibberelline solution in each concentration 25, 50, 100, 200, 400 and 800 ppm.
The result is that even if there are still some problems with respect to dealing quantity, dealing times. dealing period and others, gibberelline 25 or 50 ppm is seemed to be effective in promoting proceeding growth and ceasing delay on the earlystage of growth of Hedera genus.
Because, in case of sprinkling gibberelline 25 or 50 ppm, growth multiplicatin with balance nearly twice of other cases was fonud on the stage of 4 months after its dealing.
Some effect was found or minus effect, that is barrier by gibberelline, was provided in case of over 100 ppm gibberelline.
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