Changes in the Ultrastructure of Cut Gerbera Inflorescences During Vase Life

Amariutei, A.; Crăciun, C.; Burzo, I.

doi:10.17660/actahortic.1995.405.13

Cited by 2 publications

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“…Based on the obtained results, the quarantine sterilizing dose for tetranychuspiercie is 350 Gy and it is only suitable for chrysanthemums. Similar observations were also gained by Mencarelli et al (1995); Amariutei et al (1995); Nagaraja et al (2000) and Emongor (2004) on gerbera, as well as Celikel and Karaaly (1995) This trial aims to examine the effect of some holding solutions which contained either of calcium ,egg shell, oysters, humic acid and gamma irradiation amended with sucrose on quality, longevity, water relations and stem and petal chemical composition of cut gerbera (cv. Rosalin and cv.…”

Section: Miscellaneoussupporting

confidence: 53%

Effect of Gamma Irradiation and Some Holding Solutions on Vase Life of Gerbera Cut Flowers

Amin

Abdel-Moneim

Youssef

2016

Scient. J. of Flowers and Ornament. Plants

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Nowadays, the most of investigations are directed towards the using of natural materials for reducing pollution environment. So, this study was consummated at Post-Harvest Lab. of Floriculture Dept., Hort. Res. Inst., Giza, Egypt during 2012 and 2013 seasons to study the effect of some holding solutions, viz. distilled water (control), calcium chloride (1 & 3 g/l), calcium claw (1 & 3 g/l), egg shell (0.5 & 1.5 g/l), oysters (0.5 & 1.5 g/l), humic acid (50 & 150 g/l) and three doses of gamma irradiation (100, 200 & 400 Gy) on longevity of flower heads (vase life), water uptake, water loss, relative fresh weight, dry weight and flower diameter of Gerbera jamesonii, cv. Rosalin & Express cut flowers. The obtained results cleared that application of CaCl 2 (1 or 3 g/l) with HQ 0.2 g/l and 20 g/l sucrose resulted in a great extension in vase life and water uptake more than other treatments. Rosalin cultivar recorded significant increase in longevity, water uptake comparing to gerbera cut flowers of cv. Express during the two seasons. Gamma ray (200 Gy) recorded the least rate of water loss in cv. Rosalin in the two seasons. Superiority was for the treatment with oysters (1.5 g/l) in improvement of relative fresh weight in both seasons followed by gamma ray (200 Gy), also gamma irradiation at the doses 200 Gy plus CaCl 2 at 1 g/l + sucrose at 20 g/l significantly increased dry weight of the two cultivars Rosalin and Express followed by claw (1 g/l). All treatments gave higher record in comparison with control for diameter. The present research indicated that the application of CaCl 2 (1 g/l) with HQ 0.2 g/l and 20 g/l sucrose after exposure of cut flowers to irradiation with gamma at (200 Gy) maximizes flower diameter. Results showed that, treating with CaCl 2 at 3 g/l + HQ at 0.2 g/l and suc. at 20 g/l, or gamma rays at 200 Gy + CaCl 2 at 1 g/l + HQ at 2 g/l + Sucrose at 20 g/l registered the highest increments in chlorophyll a in the stems and soluble sugars in the stems and petals. It is concluded that the use of the holding solution containing calcium chloride at 3 g/l plus hydroxyqenolin plus sucrose alone or after irradiation with gamma at 200 Gy gave the maximum vase life.

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Section: Miscellaneoussupporting

confidence: 53%

Effect of Gamma Irradiation and Some Holding Solutions on Vase Life of Gerbera Cut Flowers

Amin

Abdel-Moneim

Youssef

2016

Scient. J. of Flowers and Ornament. Plants

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Uso de soluções de manutenção contendo ácido cítrico, cloro ou 8-HQC na conservação pós-colheita de flores cortadas de gérbera ‘Suzanne’

Durigan¹,

Mattiuz²,

Rodrigues³

et al. 2013

RBHO

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RESUMONo presente trabalho foram utilizados diferentes compostos químicos em diferentes concentrações, comumente usados por produtores e indicados comercialmente, com o objetivo de aumentar a vida de vaso e proporcionar a manutenção das boas características qualitativas e observar seus efeitos sobre a fisiologia de hastes cortadas de gérberas 'Suzanne'. Após o tratamento de "pulsing", feito na área de produção (cloro a 100 mg.L-1, por 4 horas), as flores recém-cortadas foram levadas ao laboratório e colocadas em diferentes soluções de manutenção (tratamentos). O experimento foi conduzido segundo um delineamento inteiramente casualizado, em esquema fatorial, com seis tratamentos, quatro épocas de análise e três repetições, com três hastes cada uma. Foram utilizadas, durante o armazenamento, as seguintes soluções: 1) Água destilada; 2) Ácido cítrico à 64 g.L-1; 3) Cloro à 25 mg.L-14) Cloro à 50 mg.L-1 5) 8 -Hidroxiquinolina (8-HQC) à 25 mg.L-1 ; 6) 8-HQC à 50 mg.L-1. As hastes foram mantidas sob condições controladas de laboratório (20°C; 70% UR). A cada cinco dias elas foram analisadas quanto à atividade respiratória, perda de massa fresca, perda de massa seca, conteúdo relativo de água (CRA), quantidade de solução absorvida pelas hastes (absorção), cor (luminosidade, ângulo de cor e cromaticidade), teores de carboidratos solúveis e redutores e de pigmentos (carotenoides). Também foram qualificadas quanto à aparência e quantificadas quanto à porcentagem de hastes tombadas e longevidade das flores. Este experimento possibilitou verificar a baixa eficiência do ácido cítrico na concentração usada e o menor efeito prejudicial do cloro e da 8-HQC em concentrações mais baixas que as usualmente recomendadas, o que levou à manutenção da boa qualidade das flores por um maior período de tempo. Palavras-chave: Gerbera jamesonii, flores de corte, soluções conservantes, vida de vaso. ABSTRACT The use of storage solutions containing citric acid, chlorine or 8-HQCon the postharvest conservation of cut gerbera 'Suzanne' At the present work it was used different chemical compounds in different concentrations, popularly used for growers and recognized commercially, aiming a longer vase, keep the good qualities and to observe it effects on the physiology of cut gerbera 'Suzanne'. After the pulsing treatment, done at the production area (chlorine at 100 mg.L-1, during 4 hours), the recently cut flowers were taken to the laboratory and placed in different storage solutions (treatments). The experiment was conducted in a completely randomized design, in factorial arrangement. The inflorescences remained in the following solutions: 1) Distilled water; 2) Citric acid at 64 g.L-1; 3) Chlorine at 25 mg.L-14) Chlorine at 50 mg.L-1; 5) 8-HQC at 25 mg.L-1; and 6) 8-HQC at 50 mg.L-1. The stems remained in environmental conditions (20°C; 70% RH). The flowers were analyses every 5 days by respiratory activity, loss of fresh mass, loss of dry mass, water relative content (WRC), water uptake by the stems (absorption), color (luminescence, color a...

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Changes in the Ultrastructure of Cut Gerbera Inflorescences During Vase Life

Cited by 2 publications

References 0 publications

Effect of Gamma Irradiation and Some Holding Solutions on Vase Life of Gerbera Cut Flowers

Effect of Gamma Irradiation and Some Holding Solutions on Vase Life of Gerbera Cut Flowers

Uso de soluções de manutenção contendo ácido cítrico, cloro ou 8-HQC na conservação pós-colheita de flores cortadas de gérbera ‘Suzanne’

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