Effect of thidiazuron and gibberellic acid on leaf yellowing of cut stock flowers

Ferrante, António; Mensuali-Sodi, A.; Serra, Giovanni

doi:10.2478/s11535-009-0039-8

Cited by 25 publications

(26 citation statements)

References 27 publications

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“…Application of TDZ in vase water for 24 h completely inhibited chlorophyll loss as reported in previous works [14] of cut flowers or potted plants [12,13,15,16]. The treatment with TDZ prevented the chlorophyll degradation or even in- creased the leaf total chlorophyll content as observed in treated cut tulips or cut chrysanthemum [11,3].…”

Section: Discussionsupporting

confidence: 75%

Interaction of 1-Methylcyclopropene and Thidiazuron on Cut Stock Flowers Vase Life

Ferrante¹

2012

TOHORTJ

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Abstract:Leaf yellowing or petal senescence is the main postharvest disorder for many cut flowers. Plant hormones such as cytokinins are able to inhibit leaf yellowing in some cut flowers and potted plants. In our experiments, we applied thidiazuron aiming to delay leaf yellowing and 1-methylciclopropene (1-MCP) for inhibiting flower senescence of cut stock flowers during vase life. Cut flowers were pulse treated with water (control), 5 M TDZ, 500 nLethylene or 10 L L -1 ethylene. All treatments were applied for 24 h (pulse), except for the 1-MCP that was applied for 6 h. The effect of treatments was evaluated by chlorophyll determination, petal fall, leaf yellowing appearance, vase life and ethylene production.Pulse treatment with TDZ was able to delay leaf yellowing in light during whole experimental period (30 days). During the first days after TDZ treatment, the chlorophyll b biosynthesis was strongly induced, after 5 days were the initial values, 3-fold higher while the total chlorophyll did not change. The TDZ stimulated ethylene production such as 1-MCP as soon as after 24 h. The ethylene production was found in cut flowers treated with ethylene, reaching 9 nl g -1 h -1 in leaves and 6.5 nl g -1 h -1 in detached flowers. The 1-MCP dramatically reduced the efficiency of TDZ even if the vase life of cut flowers was extended compared with controls.

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Section: Discussionsupporting

confidence: 75%

Interaction of 1-Methylcyclopropene and Thidiazuron on Cut Stock Flowers Vase Life

Ferrante¹

2012

TOHORTJ

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“…Positive effect of cytokinins on prolonging the vase life of cut Alstroemeria flowers has previously been demonstrated (MUTUI et al, 2001;CHAMANI et al, 2006;FERRANTE et al, 2009;HATAMZADEH et al, 2012). External treatment of cytokinins delays cut flowers senescence (LOUBAUD; VAN DOORN, 2004).…”

Section: Discussionmentioning

confidence: 76%

“…External application of BA had been effective on delaying senescence of various cut flowers by arresting degradation of protein and chlorophyll (MUTUI et al, 2001). BA effectively increased the vase life of cut Anthurium flowers (PAULL; CHANTRACHIT, 2001;FERRANTE et al, 2009). Cytokinins KIN and BAP markedly delayed senescence and prolonged longevity and flower quality in CHI sprayed cut Hemerocallis fulva flowers (GULZAR et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

Changes in postharvest physio-biochemical characterustics and antioxidant enzymes activity of cut alsteroemeria aurantiaca flower as affected by cycloheximide, coconut water and 6-benzyladenine

Kaviani¹,

Hashemabadi²,

Matak³

2017

Biosci. J.

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Early leaf yellowing in cut alstroemeria (Alstroemeria aurantiaca) flowers before flower development and petal abscission is an important limiting postharvest quality and vase life factors. Early leaf senescence reduces postharvest longevity of cut flowers and promotes petal's wilting. A study was made to evaluate the response of cut alstroemeria flowers at varying concentrations of cycloheximide (CHI) (50, 100 and 200 mg l -1 ), coconut water (5, 10 and 20%) and 6-benzyladenine (BA) (50, 100 and 200 mg l -1 ). CHI, coconut water and BA extended the vase life at all concentrations compared to the control, but coconut water at 5% concentration (with 17.39 days) was the most effective treatment. Control cut flowers showed the least vase life (10.76 days). Ethylene production in cut flowers promoted flower senescence. All concentrations of CHI, coconut water and BA delayed ethylene production compared to the control. Treatment of cut flowers with coconut water at concentration of 5% maintained the highest fresh weight of flowers and increased the content of water uptake. The chlorophyll degradation was significantly reduced by the application of CHI, coconut water and BA. The maximum content of membrane's lipid peroxidation and antioxidant enzymes activity (super oxide dismutase and peroxidase) was obtained in control cut flowers. Thus, 5% fresh coconut water has the potential to be applied as vase solution (preservative medium) due to prolongs of cut alstroemeria flowers.

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“…Asparagus setaceus (Kunth) Jessop reacted in the opposite way. F e rr a n t e et al [18] and J a n o w s k a and J e r z y [19] present different results. They claim that gibberellic acid has a favorable effect on the postharvest longevity of Matthiola incana and Zantedeschia elliottiana (W. Watson) Engl.…”

Section: Discussionmentioning

confidence: 99%

Influence of various chemical compounds on postharvest longevity of cut leaves of Waldsteinia geoides Willd.

Ulczycka-Walorska

Krzymińska

2014

Acta Agrobot

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A b s t r a c tThe influence of con ditioning and different methods of application of chemical compounds on cut leaves of Waldsteinia geoides was assessed. Gibberellic acid and benzyladenine at a concentration of 50 or 100 mg × dm -3 , and 8-hydroxyquinoline sulphate at a concentration of 200 mg × dm -3 were used in the process of conditioning. The leaves were conditioned in two different ways. In the first one, half of leaf stalks were soaked for 24 hours. In the latter, whole leaf blades were dipped for thirty seconds. Cut leaves were stored either in water or in the solution of 8-hydroxyquinoline sulphate at a concentration of 200 mg × dm -3 . It was both the chemical compounds applied and the application method that influenced the postharvest longevity of the leaves. The leaves conditioned in 8HQS and stored in water, those conditioned in BA at a concentration of 50 mg × dm -3 and stored in 8HQS, and those which were not conditioned and stored in 8HQS exhibited the highest level of postharvest longevity. The application of 8HQS for conditioning had a favorable effect on the increase in the weight of Waldsteinia geoides cut leaves. 8HQS applied in storing resulted in a smaller decrease in the values of the leaf greenness index.

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Effect of thidiazuron and gibberellic acid on leaf yellowing of cut stock flowers

Cited by 25 publications

References 27 publications

Interaction of 1-Methylcyclopropene and Thidiazuron on Cut Stock Flowers Vase Life

Interaction of 1-Methylcyclopropene and Thidiazuron on Cut Stock Flowers Vase Life

Changes in postharvest physio-biochemical characterustics and antioxidant enzymes activity of cut alsteroemeria aurantiaca flower as affected by cycloheximide, coconut water and 6-benzyladenine

Influence of various chemical compounds on postharvest longevity of cut leaves of Waldsteinia geoides Willd.

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