Analysis of Dynamics of Stem Elongation on Standard cut Chrysanthemum ‘Baekma’ under Different Photoperiodism

The aims of this study were to analyze dynamic stem elongation standard cut-chrysanthemum (Dendranthema grandiflorum) with different photoperiod levels. Standard cv. Baekma was grown at a 16 hr until 23 days after planting, that photoperiods 8, 10, 12, 14, and (8H, 10H, 12H, 14H, 16H) applied using fluorescent lights in plant factory. long-day treatments 14H 16H produced no flower buds the 8H treatment significantly delayed budding initiation compared 10H or 12H treatments. final characteristics height, fresh weight, number internodes higher than other Plant height fitted parameters maximum length (yasm), relative rate (k), reach (tinf) Gompertz growth model as function planting. As increased longer yasm continuously increased, tinf 12H-16H treatments, k between decreased long day (MGR) 1.15 cm·d-1 treatment, which highest rate. planting translated scales from 0 1 2 respectively. Relative described 99% developmental stage (DVS) three (yasm.DVS), (kDVS), (tinf.DVS) adjusted model. yasm.DVS differences short whereas estimated be 22% treatment. kDVS means rapidly DVS. tinf.DVS 1.143 1.224 showed Maximum ratio DVS 68% 8H, 14 62% 63% reached tinf.DVS. Our suggested can describe summarize pattern cut chrysanthemum ‘Baekma’ it is advisable use conditions short-day during cultivation ‘Baekma’.