Effects of plant growth regulators and sucrose on post harvest physiology, membrane stability and vase life of cut spikes of gladiolus

Singh, Alka; Kumar, Jitendra; Kumar, Pushpendra

doi:10.1007/s10725-008-9278-3

Cited by 86 publications

(55 citation statements)

References 28 publications

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“…The use of 1 mM fluridone did not influence the longevity of the stems, which was 5 days, compared with the 5.2 days of control flowers. Singh et al (2008) and Faraji et al (2011) also found increased gladiolus vase life when treated with GA 3 . According to Hunter et al (2004), the senescence rate can be changed with a variation in the relative concentrations of GA 3 and ABA in the flower tissue.…”

Section: Stem Longevitymentioning

confidence: 91%

Action of abscisic and gibberellic acids on senescence of cut gladiolus flowers

et al. 2016

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AbstrAct:The gladiolus flower is classified as insensitive to ethylene.Thus, the signals that initiate senescence are poorly understood. This study evaluated the role of abscisic and gibberellic acids on postharvest senescence of 3 cultivars of cut gladiolus flowers (Gladiolus grandiflora Hort.). Stalks were harvested and placed in test tube containing 100 mL distilled water or an aqueous solution of abscisic acid (100 and 150 µM ABA), gibberellic acid (100 µM GA 3 ), and fluridone (1 mM) for 24 h. Subsequently, flower stalks were placed in a test tube with distilled water, and the following variables were determined: stem longevity, fresh weight change, water uptake rate and transpiration rate during

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Section: Stem Longevitymentioning

confidence: 91%

Action of abscisic and gibberellic acids on senescence of cut gladiolus flowers

et al. 2016

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“…The effect of treatment with DIC on membrane integrity is determined for seeds germinating according to the method of Singh [24] [25]. This parameter has been included in order to have more information about the stability of the membrane and the relative ion content.…”

Section: The Membrane Integritymentioning

confidence: 99%

Towards Include Preservation of Vitamins in Fenugreek and Carob Seeds by the Instant Controlled Pressure-Drop Process (DIC Process)

Melki¹,

Hedhili²,

Hamrouni³

et al. 2018

FNS

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Fenugreek and carob seed were germinated in the dark for 4 days and 15 days respectively. The two species are rich in vitamins A, B1, B3, B8. Germination promotes the increase in their concentrations. To ensure preservation and increased bioavailability of the vitamins, it is necessary to apply a DIC of 30s to 400 kPa making it possible to support the cellular expansion and the decontamination of germinated seeds. Vitamin A content in germinated carob seed increased by 82.54%, which is not the case for fenugreek. A decrease in vitamin A concentration of 4 μg/100 g of dry matter. DIC increase vitamin B1, B3 and B8 in germinated fenugreek seeds. A slight decrease of B vitamins in germinated carob seed after treatment with DIC has been noticed. This loss can be explained by the low bioavailability caused mainly by the botanical structures of the seeds.

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“…After cooling to room temperature, electrical conductivity (value B) was measured again. Potassium chloride (0.01 mM) was used as standard, which gives specific conductance of 1.41 dS m SINGH et al, 2008) Water relations. Solution uptake was obtained by difference between initial and each evaluation day volume recorded using graduated cylinder.…”

Section: Inflorescences Of Gladiolus (Gladiolus X Hortulanus)mentioning

confidence: 99%

“…The lowest quantity of fully-open flowers in the sucrose solution alone and polymeric biguanide treatments, may have caused a lower solution uptake and a negative water balance, because water and carbohydrates are necessary for postharvest development of inflorescences (SINGH et al, 2008).…”

Section: Water Relationsmentioning

confidence: 99%

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Potential use of germicides in vase solutions for gladiolus ‘White Friendship’

Cásares

Mattiuz

Muniz

et al. 2017

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Gladiolus (Gladiolus x hortulanus) is one of the most important crops for cut flowers worldwide, however having a short longevity. Usually, stems are harvested at the bud stage and need water and carbohydrates to support inflorescence development and to ensure flower quality. Vase solutions can supply these elements. However, sugars may benefit bacterial proliferation, which eventually can block xylem vessels. Bactericides potentially inhibit microorganism proliferation and new compounds are being tested constantly. This experiment was conducted to evaluate 'White Friendship' cut gladiolus performance in vase solutions with sodium dichloroisocyanurate dihydrate (Na-DCC), 8-hydroxyquinoline (8-HQ) or polymeric biguanide (PB). Inflorescences harvested at commercial maturity were placed in distilled water with 4% w/v of sucrose plus the germicides and kept under ambient conditions. Vase life, inflorescence postharvest development, fresh mass, membrane stability index and water relations were evaluated. There were no visual symptoms of toxicity in the treatments. The highest values of vase life, fully-open flowers, fresh mass and water balance were obtained with the Na-DCC treatment. Inflorescences treated with 8-HQ exhibited the highest values of solution uptake and wilting flowers. PB had a limited effect in gladiolus postharvest since the obtained results were similar to the sucrose alone. There was no effect of germicides on membrane stability index and its reduction was due to flower senescence progress only. Vase solution with Na-DCC plus sucrose improved water balance, increased open flowers, reduced wilting of flowers and fresh mass loss. Therefore, vase solutions with sucrose 4% w/v and Na-DCC enhance postharvest quality of cut gladiolus inflorescences. Keywords: antimicrobial agents, flower quality, postharvest conservation, vase life. resumo Potencialidade do uso de germicidas em solução de manutenção para gladíolos 'White Friendship' O gladíolo (Gladiolusx hortulanus) é uma das culturas mais importantes para flores cortadas em nível mundial, possuindo curta longevidade após o corte. Normalmente, as hastes são colhidas ainda no estádio de botão e precisam de água e carboidratos para sustentar o desenvolvimento pós-colheita da inflorescência e garantir a qualidade das flores. Para suprir essas necessidades são utilizadas soluções de vaso. No entanto, os açúcares presentes podem favorecer a multiplicação das bactérias, que bloqueiam os feixes vasculares. O uso de bactericidas evita o crescimento e a proliferação de microrganismos. O objetivo deste trabalho foi avaliar o comportamento pós-colheita do gladíolo 'White Friendship' mantido em soluciones de vaso com: dicloroisocianurato de sódio dihidratado (Na-DCC), 8-hidroxiquinolina ou biguanida polimérica (PB). Inflorescências com botões fechados foram colocadas em solução de água destilada com 4% w/v de sacarose, acrescida dos germicidas e armazenadas em condição de ambiente. Foram avaliadas vida de vaso, desenvolvimento pós-colheita da inflorescênci...

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Effects of plant growth regulators and sucrose on post harvest physiology, membrane stability and vase life of cut spikes of gladiolus

Cited by 86 publications

References 28 publications

Action of abscisic and gibberellic acids on senescence of cut gladiolus flowers

Action of abscisic and gibberellic acids on senescence of cut gladiolus flowers

Towards Include Preservation of Vitamins in Fenugreek and Carob Seeds by the Instant Controlled Pressure-Drop Process (DIC Process)

Potential use of germicides in vase solutions for gladiolus ‘White Friendship’

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