3.2.3. Leaf chlorophyll content of Gladiolus Was the most effective in mgl-1 in these present studies, A Treatment with 200 retarding chlorophyll degradation as evidenced by the high leaf chlorophyll content retention? BA delayed protein degradation use in the synthesis of chlorophyll [Hoffman, 1988] premature leaf yellowing of cut flowers has been associated to hormonal imbalance after harvest [Hoffman, 1988] cytokines have been know to prevent leaf senescence by arresting degradation of protein and chlorophyll [Sacher, 1973].