Branching Response of Poinsettia ‘Orange Spice’ to a Combination of Pinching, No Pinching, and Atrimmec

This study aimed to identify the best method improve poor branching of poinsettia ‘Orange Spice’. Treatments included pinched and unpinched alone in combination with four different rates (3.9, 7.8, 11.7, 23.4 mL⋅L −1 ) Atrimmec. Pinching reduced plant height, as did + 11.7 Neither pinching nor Atrimmec had any effect on width, stem caliper, or shoot dry weight. not increase number laterals for treatments, but plants generally produced more laterals. Unpinched rate resulted tertiary shoots, which improved visual appearance quality.