Manejo pós-colheita de hastes florais de gladíolos (Gladiolus grandiflorus L.)

the aim of this work was to evaluate the effect of citric acid solutions in different concentrations on maintaining postharvest quality of cut gladiolus under cold or room storage conditions. the flowers were harvested in the morning, at the point of commercial harvest and transported to a postharvest laboratory and kept at 10°c during tree days, in which they were stored under room conditions (24 ± 2°c e 85 ± 2% rh), using the following treatments: distilled water (control) and in 30, 60, 90 and 120 mg. l-1 citric acid solutions substituited every tree days. the longevity was evaluated through the grouping of stem quality on the storage periods ranging in scale from 0 to 5 taking by reference to the number of days from the harvest where the flowers no presented abscision or petals death and general appearance, in a qualitative scale, ranging from 1 to 7. the use of citric solutions was not effective in maintaining the floral quality of gladiolus under cold or room conditions at 5% significance level.