Gibberellic Acid Promotes Flower Bud Opening on Detached Flower Stalks of Statice (Limonium sinuatum L.)1

Steinitz, Benjamin; Cohen, Avner H.

doi:10.21273/hortsci.17.6.903

Cited by 11 publications

(3 citation statements)

References 10 publications

(12 reference statements)

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“…The improvement of water balance was also associated with a reduced endogenous level of abscisic acid (Halevy 1976), which is a typical response to reduction of water stress. Similar results were also reported by Steinitz (1982) and Awad et al (1986) in gerbera and zinnia, respectively. In case of sweet pea spikes, sucrose feeding maintained higher FM and DM of flowers as compared to controls.…”

Section: Discussionsupporting

confidence: 90%

Effects of postharvest pretreatments and preservative solutions on vase life longevity and flower quality of sweet pea (Lathyrus odoratus L.)

Elhindi¹

2012

Photosynt.

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The effects of postharvest pretreatments on vase life, keeping quality and carbohydrate concentrations in cut sweet pea (Lathyrus odoratus L.) flowers were investigated. Compared to the control, all treatments promoted floret quality and extended longevity. The cut flowers held in the solution containing sucrose + 8-hydroxyquinoline (Suc+HQS) was more effective in promoting absorption rate, achieved greater maximum fresh mass, had better water balance for a longer period, extended the vase life (up to 17 d), and delayed degradation of chlorophylls. The same treatment also enhanced the concentration of soluble carbohydrates in the petals and stems and leaf chlorophyll (Chl) content, whereas it was lowest in silver thiosulphate (STS) treatment. However, concentrations of anthocyanin in the petals were higher for treatment with sucrose or STS plus sucrose than in control or STS alone treatments. Our results suggest that pulse treatment with HQS plus sucrose for 12 h is the most effective for improving pigmentation and use as a commercial cut flower preservative solution to delay flower senescence, enhance quality, and prolong the vase life of sweet pea. The results also showed that soluble carbohydrate concentration in petals and stems is an important factor in determining the vase life of sweet pea flowers.

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Section: Discussionsupporting

confidence: 90%

Effects of postharvest pretreatments and preservative solutions on vase life longevity and flower quality of sweet pea (Lathyrus odoratus L.)

Elhindi¹

2012

Photosynt.

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“…The gibberellins (GA) class of phytohormones, of which there are several bioactive forms, function as promoters of flower opening in several species, including I. nil , Gerbera hybrida , and L. sinuatum (Steinitz and Cohen 1982 ; Raab and Koning 1987 ; Li et al 2015 ). In G. hybrida , GA 3 promotes the expansion of ray floret petals and an increase in cell size (Li et al 2015 ), while in C. sativus , GA 9 is naturally produced in the ovaries and moves to the sepals and petals, where it is converted into bioactive GA 4 , which has been shown to regulate organ growth (Lange and Lange 2016 ).…”

Section: Molecular Control Of Postharvest Flower Openingmentioning

confidence: 99%

Molecular understanding of postharvest flower opening and senescence

Sun

Qin

et al. 2021

Mol Horticulture

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Flowers are key organs in many ornamental plants, and various phases of flower development impact their economic value. The final stage of petal development is associated with flower senescence, which is an irreversible process involving programmed cell death, and premature senescence of cut flowers often results in major losses in quality during postharvest handling. Flower opening and senescence are two sequential processes. As flowers open, the stamens are exposed to attract pollinators. Once pollination occurs, flower senescence is initiated. Both the opening and senescence processes are regulated by a range of endogenous phytohormones and environmental factors. Ethylene acts as a central regulator for the ethylene-sensitive flowers. Other phytohormones, including auxin, gibberellin, cytokinin, jasmonic acid and abscisic acid, are also involved in the control of petal expansion and senescence. Water status also directly influences postharvest flower opening, while pollination is a key event in initiating the onset flower senescence. Here, we review the current understanding of flower opening and senescence, and propose future research directions, such as the study of interactions between hormonal and environmental signals, the application of new technology, and interdisciplinary research.

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“…Treatment with GA 3 delays leaf yellowing in cut Alstroemeria [11], lily [12], and Narcissus [13]. Exogenous GA 3 promotes c [14,15] and the flower opening of statice [16]. Treatment with GA 3 extends the vase life of cut carnation [17] and rose [14].…”

Section: Introductionmentioning

confidence: 99%

The Extension of Vase Life in Cut Gerbera Flowers through Pretreatment with Gibberellin A3 in Combination with Calcium Chloride

Tonooka,

Homma,

Nukui

et al. 2023

Horticulturae

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The effect of pretreatment with gibberellin A3 (GA3) and calcium chloride (CaCl2) on the vase life of cut gerbera ‘Minou’ was investigated. Cut gerbera flowers were treated with GA3 and/or CaCl2 for 24 h and then transferred to an antimicrobial solution. Pretreatment with GA3 at 0, 29, 72, 144, and 289 µM delayed the opening of the tubular florets and promoted stem bending due to elongation of the flower stems, which shortened vase life. When cut gerbera was pretreated with 144 µM GA3 in combination with CaCl2 at 90, 180, 270, and 360 mM, stem elongation was suppressed with the increasing concentration of CaCl2. Next, the effect of pretreatment with 144 µM GA3, 270 mM CaCl2, and their combination on the vase life of the cut gerbera was investigated. Combined treatment with GA3 and CaCl2 significantly extended vase life more than GA3 alone and CaCl2 alone. The vase life of the cut gerbera ‘Banana’, ‘Kimsey’, ‘Pinta’, ‘Tim’, and ‘Vivid’ was significantly extended by pretreatment with 144 µM GA3 and 270 mM CaCl2. It was concluded that combined treatment with GA3 and CaCl2 was effective in extending the vase life of the cut gerbera.

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Gibberellic Acid Promotes Flower Bud Opening on Detached Flower Stalks of Statice (Limonium sinuatum L.)1

Cited by 11 publications

References 10 publications

Effects of postharvest pretreatments and preservative solutions on vase life longevity and flower quality of sweet pea (Lathyrus odoratus L.)

Effects of postharvest pretreatments and preservative solutions on vase life longevity and flower quality of sweet pea (Lathyrus odoratus L.)

Molecular understanding of postharvest flower opening and senescence

The Extension of Vase Life in Cut Gerbera Flowers through Pretreatment with Gibberellin A3 in Combination with Calcium Chloride

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