Abstract
The effects of NAA and ethychlozate on flowering ability and the concentration of endogenous nutritional elements of summer shoots in satsuma mandarin grown in an early heating plastic house and started heating in November were compared. Regarding the flowering ability, it was evident that the physiological flower bud differentiation proceeded at a more rapid pace and was completed earlier and that the number of flowers was greater with NAA treatment. In NAA treatment, the shoots and leaves contained more starch and less nitrogen. These findings suggest that plants treated with NAA will have better floral evocation and thus bear more flowers than those treated with ethychlozate.
