Articles
CUTTING-TIME EFFECT DURING HARVEST CYCLE ON POSTHARVEST BEHAVIOR OF THREE GYPSOPHILA PANICULATA CV. PERFECTA CLONES
Article number
482_9
Pages
71 – 76
Language
Abstract
We analyzed flower behavior in Gypsophila paniculata cv.
Perfecta, cut and picked throughout the harvest cycle, at the Ucrania farm laboratories (municipality of Madrid, Cundinamarca) at 2600 m a.s.l.
Cuttings from three clones: Balborts, Raham Meristem and Cor van Duyn, were planted and monitored under identical commercial greenhouse conditions.
The optimum harvest time was based on the presence of 50% open corollas in every shoot.
Vase life was recorded at 5, 15, 30, 45 and 55 days counted from the first cutting test.
The experiment has three replicates, and as a preservation treatment the shoots were submerged in a STS-sugar-bactericide mixture during two hours, then three flowering shoots were placed in every vase, and maintained in the laboratory under constant light, temperature and relative humidity.
Tap water was used and replaced every three days.
One branch of the shoot was marked in order to determine the opened and necrotic flowers.
Harvest period lasted 82 days, Balborts being the earliest clone.
Raham Meristem and Cor van Duyn clones flowered and reached the maximum harvest level later.
The estimated yield shows a considerable difference in the number of bunches (300 g). The most productive clone was Balborts and the least productive was Cor van Duyn.
Vitality and the duration of the cut flowers in vases, were higher for Raham Meristem and Cor van Duyn clones obtained in the first cut and in Balborts obtained in the second cut.
Vitality and duration were similar in all clones when the flowers were cut on day 30, 45 or 55. Senescence initiated slowly seven days after placing the flowers in vases in all clones.
Fading increased with time.
Perfecta, cut and picked throughout the harvest cycle, at the Ucrania farm laboratories (municipality of Madrid, Cundinamarca) at 2600 m a.s.l.
Cuttings from three clones: Balborts, Raham Meristem and Cor van Duyn, were planted and monitored under identical commercial greenhouse conditions.
The optimum harvest time was based on the presence of 50% open corollas in every shoot.
Vase life was recorded at 5, 15, 30, 45 and 55 days counted from the first cutting test.
The experiment has three replicates, and as a preservation treatment the shoots were submerged in a STS-sugar-bactericide mixture during two hours, then three flowering shoots were placed in every vase, and maintained in the laboratory under constant light, temperature and relative humidity.
Tap water was used and replaced every three days.
One branch of the shoot was marked in order to determine the opened and necrotic flowers.
Harvest period lasted 82 days, Balborts being the earliest clone.
Raham Meristem and Cor van Duyn clones flowered and reached the maximum harvest level later.
The estimated yield shows a considerable difference in the number of bunches (300 g). The most productive clone was Balborts and the least productive was Cor van Duyn.
Vitality and the duration of the cut flowers in vases, were higher for Raham Meristem and Cor van Duyn clones obtained in the first cut and in Balborts obtained in the second cut.
Vitality and duration were similar in all clones when the flowers were cut on day 30, 45 or 55. Senescence initiated slowly seven days after placing the flowers in vases in all clones.
Fading increased with time.
Authors
A. Chaparro de Barrera, G. Arenas
Keywords
Production curve, flowers, petals, quality, senescence, vase life
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