engleski

Morphological characteristics of roses cut flower after vase life

Investigation was conducted under uncontrolled conditions in the laboratory for Plant production at the Faculty of Agriculture in Osijek. The cut roses used in the study were Red Naomi from Netherlands, manufacturer Schreurs. Favourable conditions of storage are necessary for a successful development of roses flower after cutting. Insufficient water supply causes neck bending and poor bud opening. The insurance of a good flow of water from the stems cut to the roses head is necessary during storage of cut flowers. Three different mediums of 300 ml volume were used in the study: ordinary tap water, Chrysal clear, Crystal soil gel. The length of the roses stalk was 50 cm and cut of the stalk was straight at an angle of 90°. After symptoms of decay such as weariness of neck and yellowing and drying of petals were observed, each rose was taken out of medium and the volume of the residual liquid was measured. Leaves, neck and head of decayed rose were separately weighed, placed in paper bags and dried at 70ºC for 24h and 48h respectfully. The smallest loss of medium volume (5.45 %) was recorded in cut roses that were stored in the gel, while the greatest loss of medium volume (47.71 %) was recorded in cut roses stored in Chrysal clear. Medium volume loss in cut roses stored in tap water was 35.78%. The lowest head mass (14.64 g) was recorded in roses stored in gel, which was 38.25% less than in plants stored in tap water and 17.78% less than in roses stored in Chrysal medium. The greatest neck fresh mass (1.52 g) of roses was observed in plants stored in water, while the lowest fresh mass was observed in plants stored in gel (0.81 g). Fresh leaf weight of rose (4.18 g) was significantly higher in plants stored in water compared to plants stored in Chrysal (3.39 g). Chrysal clear solution proved to be best medium for cut flowers vase life.

water ; chrysal ; crystal ; cut flower ; rose

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