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- Author or Editor: Joseph W. Love x
Two poinsettia cultivars, ‘Annette Hegg’ and ‘Eckespoint C-l’ were grown at 60° and 65°F night temperatures, and subjected to growth retardant treatments. 2-ChloroethyI trimethyl ammonium chloride (CCC) soil drenches resulted in the shortest plants, but effective height control was achieved with combination spray applications of CCC and succinic acid 2,2-dimethylhydrazide (SADH), or CCC and N-pyrrolidinosuccinamic acid (F 529) applied once, or 2 foliar applications of CCC applied 3 weeks apart. Date of flowering was not appreciably affected by the growth retardants, but was affected by temperature. Flowering was accelerated at the warmer temperature, but plant heights and bract diam were similar at both temperatures.