Controlling Ornamental Cabbage and Kale (Brassica oleracea) Growth via Cycocel

Chlormequat (cycocel or ccc), the plant growth retardant, was evaluatedfor its ability to control plant height in brassica oleracea cultivar ‘kamomewhite’ and ‘nagoya red’. different concentrations of ccc (0, 500, 1000 and1500 mg/l) were sprayed and drenched on plants 40 days after transplanting.data were recorded the 60 and 90 days after transplanting. the 1500 mg/l ofccc resulted in about 50 and 20% shorter plants than the control plants, 60and 90 days after transplant, respectively. the growth of brassica oleraceacultivar ‘kamome white’ and ‘nagoya red’ decreased with increasing theconcentration of ccc. foliar sprays of ccc controlled plant height of bothcultivars. the least record of plant height was obtained by application of 1500mg/l ccc via spraying method in cultivar ‘kamome white’ after 60 and 90days (9.94 and 11.59 cm, respectively). the effect of cultivar type has beensignificant at p?0.01 level on all measured traits.