Growth Charateristic and Alumimum Contents by Nutrient Solution of Regulated pH in Cut Hydrangea ‘Adria’

Abstract

This study was to acquire data of growth characteristic and aluminum contents by pH regulated nutrient solution in cut hydrangea(Hydrangea macorphylla) ‘Adria’. Stem length of cutting flower surveyed 44.1cm at treatment of pH 5.5, and 40.8cm at pH 4.0, 36.2cm at pH 7.0. Flesh weight investigated 147.2g/stem at pH 4.0, 154.2g/stem at pH 5.5, 122.3g/stem at pH 7.0. Aluminum contents was higher treatment of pH 4.0 and pH 7.0 then treatment pH 5.5. Aluminum contests of the upper part was lower then the lower part of hydrangea stem. So we obtained good quality of cut hydrangea at treatment of pH 5.5. We thought very slow transfer of aluminum in the hydrangea stem.