Postharvest Quality of Roses as Related to Preharvest Conditions

Marissen, N.

doi:10.17660/actahortic.2005.669.33

“…Floral foam life than production temperature. Studies have linked vase life to commercial greenhouse production conditions and noted that high light and low relative humidity were correlated with increased vase life (Marissen, 2005;Slootweg, 2005). In our studies, all experiments for each species were completed within 1 month, but there may have been sufficient variation in growing conditions during that time to influence vase life.…”

Section: Sucrosementioning

confidence: 89%

Postharvest Evaluation of Cut Dahlia, Linaria, Lupine, Poppy, Rudbeckia, Trachelium, and Zinnia

Dole¹,

Viloria²,

Fanelli³

et al. 2009

hortte

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Vase life of ‘Karma Thalia’ dahlia (Dahlia ×hybrida), ‘Lace Violet’ linaria (Linaria maroccana), ‘Sunrise’ lupine (Lupinus hartwegii ssp. cruickshankii), ‘Temptress’ poppy (Papaver nudicaule), ‘Indian Summer’ rudbeckia (Rudbeckia ×hybrida), ‘Jemmy Royal Purple’ trachelium (Trachelium caeruleum), and ‘Benary's Giant Scarlet’ and ‘Sun Gold’ zinnias (Zinnia elegans) was determined after being subjected to postharvest handling procedures. Cut dahlia, lupine, poppy, rudbeckia, trachelium, and ‘Sun Gold’ and ‘Benary's Giant Scarlet’ zinnia flowers could be held in unamended tap or deionized (DI) water with no effect on vase life. Vase life of linaria was longest when placed in DI water with 8-hydroxyquinoline citrate and a solution pH of 3.5. A vase solution of 2% sucrose without foam extended consumer vase lives for linaria, trachelium, and ‘Benary's Giant Scarlet’ zinnia. Floral foam or 2% or 4% sucrose had no effect on the consumer vase life of dahlia, lupine, rudbeckia, and poppy. Trachelium and rudbeckia did not tolerate a 20% sucrose treatment for 24 h, whereas linaria and ‘Benary's Giant Scarlet’ zinnia had a longer vase life with a 10% sucrose pulse than a water-only pulse. For trachelium, the longest (17.5 days) consumer vase life occurred when the Chrysal Professional 2 Processing solution (CP2) was used after pretreatment with DI water. Either of two commercial holding solutions, CP2 or Floralife Professional (FLP), similarly extended the vase life of linaria. The use of FLP or CP2 improved consumer vase life of dahlia, lupine, and poppy compared with DI water. Dahlia, trachelium, and zinnia flowers could not be cold stored at 2 °C. Lupine and poppy could be stored at 2 °C wet or dry for 2 weeks. Linaria and rudbeckia could be cold stored for 3 weeks. Lupine and trachelium were susceptible to 1 μL·L−1 exogenous ethylene, which induced floret abscission in lupine and stopped floret opening in trachelium. 1-Methylcyclopropene and silver thiosulfate similarly suppressed the ethylene effect. Cut linaria, zinnia, dahlia, rudbeckia, and poppy flowers were unaffected by exogenous ethylene.

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“…Studies have linked vase life to commercial greenhouse production conditions and noted that high light and low relative humidity were correlated with increased vase life (Marissen, 2005;Slootweg, 2005). In our studies, all experiments for each species were completed within 1 month, but there may have been sufficient variation in growing conditions during that time to influence vase life.…”

Section: Sucrosementioning

confidence: 89%

Postharvest Evaluation of Cut Dahlia, Linaria, Lupine, Poppy, Rudbeckia, Trachelium, and Zinnia

Dole,

Viloria,

Fanelli

et al. 2009

hortte

5

0

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Vase life of ‘Karma Thalia’ dahlia (Dahlia ×hybrida), ‘Lace Violet’ linaria (Linaria maroccana), ‘Sunrise’ lupine (Lupinus hartwegii ssp. cruickshankii), ‘Temptress’ poppy (Papaver nudicaule), ‘Indian Summer’ rudbeckia (Rudbeckia ×hybrida), ‘Jemmy Royal Purple’ trachelium (Trachelium caeruleum), and ‘Benary's Giant Scarlet’ and ‘Sun Gold’ zinnias (Zinnia elegans) was determined after being subjected to postharvest handling procedures. Cut dahlia, lupine, poppy, rudbeckia, trachelium, and ‘Sun Gold’ and ‘Benary's Giant Scarlet’ zinnia flowers could be held in unamended tap or deionized (DI) water with no effect on vase life. Vase life of linaria was longest when placed in DI water with 8-hydroxyquinoline citrate and a solution pH of 3.5. A vase solution of 2% sucrose without foam extended consumer vase lives for linaria, trachelium, and ‘Benary's Giant Scarlet’ zinnia. Floral foam or 2% or 4% sucrose had no effect on the consumer vase life of dahlia, lupine, rudbeckia, and poppy. Trachelium and rudbeckia did not tolerate a 20% sucrose treatment for 24 h, whereas linaria and ‘Benary's Giant Scarlet’ zinnia had a longer vase life with a 10% sucrose pulse than a water-only pulse. For trachelium, the longest (17.5 days) consumer vase life occurred when the Chrysal Professional 2 Processing solution (CP2) was used after pretreatment with DI water. Either of two commercial holding solutions, CP2 or Floralife Professional (FLP), similarly extended the vase life of linaria. The use of FLP or CP2 improved consumer vase life of dahlia, lupine, and poppy compared with DI water. Dahlia, trachelium, and zinnia flowers could not be cold stored at 2 °C. Lupine and poppy could be stored at 2 °C wet or dry for 2 weeks. Linaria and rudbeckia could be cold stored for 3 weeks. Lupine and trachelium were susceptible to 1 μL·L−1 exogenous ethylene, which induced floret abscission in lupine and stopped floret opening in trachelium. 1-Methylcyclopropene and silver thiosulfate similarly suppressed the ethylene effect. Cut linaria, zinnia, dahlia, rudbeckia, and poppy flowers were unaffected by exogenous ethylene.

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“…Or, les méthodes de sélection utilisées par les obtenteurs reposent sur des observations d'évolution en vase difficiles à standardiser [3][4][5]. Il semble que les variations de durée de vie en vase puissent être attribuées à des stomates foliaires [6,7] ou à des températures [5] et intensités lumineuses [8,9] différentes. Nous avons pu montrer que l'évolution de la sénescence en vase d'une variété de rose pouvait être appréciée de façon objective et fiable par la mesure du pH, de la conductance, ou de l'osmolarité du suc cellulaire des pétales [1].…”

Section: Introductionunclassified

Utilisation de quelques tests physiologiques sur la sélection de variétés de roses coupées

Gudin¹,

Crespel²,

Bris³

2007

Comptes Rendus. Biologies

0

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Nous avons pu montrer précédemment que l'évolution de la sénescence en vase pouvait être appréciée de façon objective et fiable par la mesure du pH, de la conductance, ou de l'osmolarité du suc cellulaire des pétales d'une variété de rose. Nous avons voulu vérifier si ces tests physiologiques pouvaient être utilisés à des fins de sélection, de façon à prévoir la qualité post-récolte de variétés en cours d'évaluation. Alors que les mesures du pH et de la pression osmotique ne semblent pas être corrélées à la tenue en vase de la fleur, celle de la conductance lui paraît, en revanche, bien liée (r = −0,74). En ce qui concerne le pH, si la corrélation est testée non plus sur l'ensemble des variétés, mais sur des variétés regroupées par couleurs (blanches, jaunes et ocre ; roses et rouges ; multicolores), elle apparaît alors comme valable, étant caractérisée par des coefficients r variant de −0,78 à −0,91. Pour citer cet article :

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Postharvest Quality of Roses as Related to Preharvest Conditions

Cited by 5 publications

References 6 publications

Postharvest Evaluation of Cut Dahlia, Linaria, Lupine, Poppy, Rudbeckia, Trachelium, and Zinnia

Postharvest Evaluation of Cut Dahlia, Linaria, Lupine, Poppy, Rudbeckia, Trachelium, and Zinnia

Postharvest Evaluation of Cut Dahlia, Linaria, Lupine, Poppy, Rudbeckia, Trachelium, and Zinnia

Utilisation de quelques tests physiologiques sur la sélection de variétés de roses coupées

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