Effect of glucose and biocides on vase life and quality of cut gladiolus spikes.
Al-Humaid A.I.
5th International Postharvest Symposium . Volume of Abstract . Verona, Italy 6-11 June 2004, p.88
2004
บทคัดย่อ
Effect of glucose and biocides on vase life and quality of cut gladiolus spikes.
Postharvest quality and vase life of cut galdiolus (Gladiolus gandavensis) “Rose Supreme” and “Nova Lux” cultivars were significantly improved by placing the inflorescence in vase solutions containing antibiotics (200 ppm penicillin + 250 ppm streptomycin) and glucose (5, 10 or 0%).The addition of the biocide to the bacterial counts in the solution, inhibited the microbial growth,improved flower-opening rate, and reduced flower deterioration rate.Although there were positive proportional relationships among sugar concentration (up to 10%) and total bacterial counts in the solution, however, the addition of the biocide reduced the bacterial counts, resulting in the improvement in postharvest quality of both tested cultivars.The highest number of opened flowers and lowest number of deteriorated flowers were achieved when the preservative solution contained a mixture of biocide and 20% glucose.Sugar concentrations in vase solution resulted in high leaf content of both chlorophyll and total carbohydrates, whereas presence of biocide in the vase solution reduced both total carbohydrates and chlorophyll contents in the leaves of cut gladiolus spikes.