Ethephon and Silver Thiosulfate Affect Postharvest Characteristics of Rosa hybrida `Victory Parade'

Serek, M.

doi:10.21273/hortsci.28.3.199

Cited by 27 publications

(13 citation statements)

References 7 publications

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“…Sytsema (1986) reported that a combination of BA and STS prolonged flower longevity and improved flower development and bud opening of cut Freesia. STS and BA have been reported to prolong the longevity of potted Rosa hybrida 'Victory Parade' when each was applied alone (Serek, 1993;Serek and Andersen, 1993). However, we were unable to find reports on cytokinin and STS combination treatments for extending potted rose longevity.…”

mentioning

confidence: 60%

“…STS increased floral longevity on 'Meijikatar' and 'Meirutral' plants and improved flower opening on 'Meijikatar' plants. Serek (1993) showed that potted roses are sensitive to ethylene and that STS increased flower longevity by preventing abscission. However, flower longevity decreased and abscission increased on 'Victory Parade' plants as the STS concentration increased from 0.4 to 1.6 mM (Serek, 1993).…”

Section: Resultsmentioning

confidence: 99%

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Cultivar, Flower Stage, Silver Thiosulfate, and BA Interactions Affect Performance of Potted Miniature Roses

Cushman¹,

Pemberton²,

Kelly³

1994

HortSci

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Experiments were conducted to study the interaction of cultivar, flower stage, silver thiosulfate (STS), and BA on flower senescence and leaf abscission in greenhouse-grown potted miniature roses. Plants of Rosa L. `Meijikatar' (Orange Sunblaze) and `Meirutral' (Red Sunblaze) were sprayed with several concentrations of STS and BA in factorial combination. In winter, plants were sprayed with STS at 0 or 2 mm and BA at 0, 0.02,0.04,0.11,0.22, or 0.44 mm In spring, flowers at three stages of development were sprayed with STS at 0,2, or 3 mm, and BA at 0, 0.02, 0.04, 0.22, or 0.44 mm One day after treatment in both experiments, plants were placed in darkness at 16C for 4 days to simulate shipping, and then they were evaluated in a controlled environment at 21C. Poststorage floral longevity (PSFL) was longer for `Meirutral' than for `Meijikatar' plants, regardless of chemical treatment or flower stage. Flowers that were in the bud stage (stage 1) before simulated shipping lasted longer than flowers showing color (stages 2 and 3), regardless of cultivar or chemical treatment. Combinations of STS and BA did not increase PSFL compared to STS alone. Plants treated with 2 or 3 mm STS exhibited longer PSFL than nontreated plants; however, 2 and 3 mm were about equally effective. STS at 4 mm was phytotoxic in a preliminary experiment. Applying BA alone did not affect PSFL, but did improve postharvest flower opening on `Meijikatar' plants about the same as STS applied alone. The large flowering cultivars represented by `Meijikatar' and `Meirutral' appear to be nonresponsive to BA. A star-shaped malformation was induced on `Meijikatar' and `Meirutral' plants by simulated shipping and was not prevented by STS or BA. Chemical name used: N-(phenylmethyl) -1H-purin-6-amine (BA).

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mentioning

confidence: 60%

Section: Resultsmentioning

confidence: 99%

Cultivar, Flower Stage, Silver Thiosulfate, and BA Interactions Affect Performance of Potted Miniature Roses

Cushman¹,

Pemberton²,

Kelly³

1994

HortSci

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“…A longevidade das flores é resultante de vários fatores pré e pós-colheita e está relacionada com características genéticas, fisiológicas e anatômicas de cada espécie e entre cultivares (MORAES et al, 1999). O armazenamento de flores visa basicamente minimizar os problemas de conservação, transporte e distribuição, com o objetivo de reduzir o processo de senescência, aumentando a longevidade (SEREK, 1993).…”

Section: Introductionunclassified

Armazenamento de crisântemos brancos sob condição ambiente utilizando soluções conservantes

Silva

2010

Sem. Ci. Agr.

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ResumoO objetivo deste trabalho foi avaliar o efeito de soluções conservantes na manutenção da qualidade pós-colheita de flores de crisântemo (Dendranthema grandiflora T.) do tipo branco, variedade Calábria. As flores foram mantidas à temperatura ambiente, de 24 ± 2ºC e 85 ± 2% UR, nos seguintes tratamentos: água destilada (controle), solução de hipoclorito de sódio (80ppm e 800ppm), solução de sacarose (10% e 15%) e solução de hidroxiquinolina (0.04% e 0.08%). As flores permaneceram dezoito dias no ambiente de armazenamento, sendo as soluções substituídas a cada quatro dias. Foram realizadas as seguintes avaliações: longevidade (notas de 0-4), aparência (notas de 1-9). As soluções de hipoclorito de sódio a 80ppm e 800ppm reduziram a longevidade de crisântemos brancos, comparadas ao controle. A utilização de soluções de hidroxiquinolina a 0.04% e 0.08% não contribuiu no prolongamento da longevidade ou manutenção da boa aparência das flores. Conclui-se que a solução conservante à base de sacarose a 10% manteve a vida útil pós-colheita durante 17 dias, proporcionando menor percentual de flores com manchas escuras e menores danos às sépalas e folhas. Palavras-chave: Hipoclorito de sódio, hidroxiquinolina, sacarose, pós-colheita, Dendranthema grandiflora T. AbstractThe objective of this work was to evaluate the effect of preservative solutions on the maintenance of postharvest quality of white type chysanthemum flowers (Dendrathema grandiflora T.). Flowers were kept at room temperature (24 ± 2°C and 85 ± 2 % UR), under the following treatments: distilled water (control); sodium hypochloride solutions (80ppm and 800 ppm); sucrose solutions (10% and 15 %) and hidroxyquinoline solutions (0.04% and 0.08 %). Flowers were stored under these treatments during 18 days, being the solutions changed each 4 days. The following evaluations were done: longevity (scores from 0 to 4), flower appearance (scores from 1 to 9). Sodium hipochloride solutions at 80ppm and 800 ppm reduced white chrysanthemum longevity as compared to control. The utilization the hidroxyquinoline solutions at 0.04% and 0.08 % had no effects on flower longevity or quality maintenance. The preservative solution utilizing 10 % of sucrose kept the postharvest quality during 17 days, providing flowers with lower percentage of dark spots, and lower index of petals and leaves damage.

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“…Consequently, extensive efforts have been made to improve the quality and increase the production of these plants in Denmark (Serek and Anderson 1993). However, loss of quality during postharvest and marketing in miniature potted roses is still an important problem which is mainly caused by ethylene (Serek 1993;Serek et al 1994). Ethylene reduces the postharvest quality by accelerating flower senescence as well as bud, flower and leaf drop and increases incidences of grey mould (Botrytis cinerea) infection.…”

Section: Introductionmentioning

confidence: 99%

“…Sensitivity to ethylene plays an important role during transport and handling of potted roses in supermarkets and other areas where the air is commonly contaminated with ethylene (Mu¨ller et al 1998(Mu¨ller et al , 2000a. The need for chemical protection from ethylene action has been recommended in many potted flowering plants in which low concentrations of ethylene causes rapid loss in display quality (Serek 1993;Serek et al 1994). Recently, a range of cyclopropenes (CPs) have been developed, which are effective in preventing the deleterious effects of ethylene in plants .…”

Section: Introductionmentioning

confidence: 99%

Efficacy of New Inhibitors of Ethylene Perception in Improvement of Display Quality of Miniature Potted Roses (Rosa hybrida L.)

et al. 2005

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1-Octylcyclopropene (1-OCP) and 1-Decylcyclopropene (1-DCP), ethylene receptor inhibitors, analogues to 1-MCP, substituted with longer carbon chain in the 1-position were investigated in miniature potted roses cultivar 'Lavender'. All levels of both chemicals protected as compared to untreated plants. 1-OCP and 1-DCP were the most effective at concentrations 1000 and 1500 nl l À1 , which was five times higher than the concentration of 1-methylcyclopropene (1-MCP) (200 nl l À1 ) used as a standard. The effectiveness of 1-OCP and 1-DCP was a function of time and temperature. At short (2 h) exposure times, the plants were highly sensitive to ethylene. Exposure time of 4 h for both 1-OCP and 1-DCP was sufficient to improve display life of miniature roses and longer exposures did not have any additional beneficial effect. Apparently, exposing miniature potted roses to various temperatures did not have an influence on the performance of both 1-OCP and 1-DCP while low temperature at 5°C reduced their performance. The reasons for differences in the effects of these compounds are discussed.

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Ethephon and Silver Thiosulfate Affect Postharvest Characteristics of Rosa hybrida `Victory Parade'

Cited by 27 publications

References 7 publications

Cultivar, Flower Stage, Silver Thiosulfate, and BA Interactions Affect Performance of Potted Miniature Roses

Cultivar, Flower Stage, Silver Thiosulfate, and BA Interactions Affect Performance of Potted Miniature Roses

Armazenamento de crisântemos brancos sob condição ambiente utilizando soluções conservantes

Efficacy of New Inhibitors of Ethylene Perception in Improvement of Display Quality of Miniature Potted Roses (Rosa hybrida L.)

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