GA4+7 plus benzyladenine reduce foliar chlorosis of Lilium longiflorum

Whitman, Catherine M.; Heins, Royal D.; Moe, R.; Funnell, Keith A.

doi:10.1016/s0304-4238(00)00238-7

Cited by 19 publications

(12 citation statements)

References 20 publications

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“…The idea of combination of GA 3 with TDZ came from several investigations that demonstrated the effect of GA 3 in delaying leaf yellowing in cut flowers. Applications of GA 3 or GA 4+7 alone or in combination with benzyladenine were able to reduce leaf yellowing in lilies and alstroemeria [2,4,19]. In our study GA 3 did not show any synergic effect with TDZ and did not improve TDZ efficiency in dark conditions.…”

Section: Discussioncontrasting

confidence: 43%

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

Ferrante

Mensuali-Sodi²,

Serra³

2009

Open Life Sciences

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Plant hormones such as cytokinins and gibberellins are able to inhibit leaf yellowing in different species of cut flowers and potted plants.These hormones can be used alone or in combination among them for preserving chlorophyll in floriculture items. In the present study thidiazuron was tested alone or combined with GA 3 for delaying leaf yellowing of cut stock flowers during vase life. Cut flowers were placed in a controlled environment and treated for 24 hours with the following solutions: distilled water (control) or solutions containing 5, 10 µM thidiazuron (TDZ), 0.5 mM gibberellic acid (GA 3 ), or a combination of 0.5 mM GA 3 with 5 µM TDZ. The effect of treatments was evaluated by measuring chlorophyll content, ethylene production, leaf gas exchanges and chlorophyll a fluorescence. Results showed that TDZ was able to delay leaf yellowing in light during whole experimental period (30 days). The effect of TDZ on dark stored flowers was less effective, and also delayed chlorophyll losses for 10-12 days. TDZ and GA 3 combination did not show any synergistic nor beneficial effect. Gas exchange values such as net photosynthesis, vapour pressure deficit, stomatal conductance and water use efficiency were higher in the TDZ only treatment.

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Section: Discussioncontrasting

confidence: 43%

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

Ferrante

Mensuali-Sodi²,

Serra³

2009

Open Life Sciences

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“…'Stargazer'), and cut Asiatic and Oriental lilies (Lilium sp.) (Funnell and Heins, 1998;Han, 1995Han, , 1997Han, , 2001Miller, 1998, 2005;Ranwala et al, , 2003Whitman et al, 2001). Postproduction leaf yellowing in tulips is reduced after the application of BA and GA 4+7 (Kim and Miller, 2009).…”

Section: Discussionmentioning

confidence: 99%

“…One potential problem with using BA + GA 4+7 to reduce s-ABA-induced leaf chlorosis is increased internode elongation. The exogenous application of GA independently or in combination with cytokinins results in increased stem elongation in some species, including poinsettia (Euphorbia pulcherrima) and Easter lily (Blanchard and Runkle, 2008;Han, 2000;Ranwala et al, 2003;Ranwala and Miller, 1999;Whitman et al, 2001). In Easter lilies, undesirable stem elongation was minimized by determining the optimum concentration of GA 4+7 and using only foliar spray applications (Ranwala et al, 2003).…”

Section: Discussionmentioning

confidence: 99%

Benzyladenine and Gibberellic Acid Application Prevents Abscisic Acid-induced Leaf Chlorosis in Pansy and Viola

Waterland¹,

Finer²,

Jones³

2010

horts

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Drought stress during the shipping and retailing of floriculture crops can reduce postproduction shelf life and marketability. The plant hormone abscisic acid (ABA) mediates drought stress responses by closing stomata and reducing water loss. Applications of exogenous s-ABA effectively reduce water loss and allow a variety of species to survive temporary periods of drought stress. Unfortunately, s-ABA application can also lead to leaf chlorosis, which reduces the overall quality of economically important bedding plant species, including Viola ·wittrockiana (pansy). The goal of this research was to determine how to prevent s-ABA-induced leaf chlorosis in pansy and a closely related species, Viola cornuta (viola). All concentrations of both spray (250 or 500 mgÁL -1 ) and drench (125 or 250 mgÁL -1 ) s-ABA applications induced leaf yellowing. Young plants at the plug stage and 11-cm finished plants with one to two open flowers were further evaluated to determine if the developmental stage of the plants influenced s-ABA effectiveness or the development of negative side effects. Both plugs and finished pansies and violas developed leaf chlorosis after s-ABA applications, but symptoms were generally more severe in finished plants. The individual application of benzyladenine (BA), gibberellic acid (GA 4+7 ), or the ethylene perception inhibitor, 1-methylcyclopropene, before s-ABA application had no effect on the development of s-ABA-induced leaf chlorosis. However, applications of 5 or 10 mgÁL -1 BA and GA 4+7 as a mixture (BA + GA 4+7 ) before a drench or spray application of s-ABA prevented leaf chlorosis. The application of s-ABA and BA + GA 4+7 would allow floriculture crops to tolerate temporary periods of drought stress without any loss of postproduction quality.

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“…Results highlighted the efficacy of pulsing with GA 4+7 + BA + preservative or GA 4+7 + BA for maintaining stem quality and reducing loss of stem fresh weight during vase period. Use of gibberellins and benzyladenine is reported to control leaf chlorosis in easter lily (Han, 1997;Whitman et al, 2001), potted oriental lily (C xelikel et al, 2002;Ranwala and Miller, 2000), and cut lilies (Han, 2001;van Doorn and Han, 2011). However, continuous vase application at 0.5 or 2.5 mgÁL -1 or pulse at 25 mgÁL -1 for 4 h increased bud abscission (Han, 2001).…”

Section: Resultsmentioning

confidence: 99%

Pulsing With Low Concentration Gibberellin Plus Benzyladenine or Commercial Floral Preservatives Affect Postharvest Longevity, Quality, and Leaf Chlorosis of Cut Lilies and Gladioli

Ahmad

Dole

Favero

2014

hortte

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Effects of pulsing with different concentrations of gibberellin plus benzyladenine (GA4+7 + BA), a proprietary mixture of GA4+7 plus BA in a commercial floral preservative (GA4+7 + BA + preservative), or a propriety mixture of sugar plus acidifier developed for bulbous flowers (floral bulb preservative) were studied on postharvest performance and quality of cut lily (Lilium hybrids) and gladiolus (Gladiolus hybrids) flowers. Pulsing of cut stems of lily with GA4+7 + BA at 5 or 2 mL·L−1 GA4+7 + BA + preservative for 20 hours at 3 ± 1 °C extended the vase life and controlled leaf chlorosis of ‘Cobra’ oriental lily and ‘Cappuccino’ and ‘Dot Com’ asiatic lily. Cut ‘Orange Art’ asiatic lily performed best when pulsed with GA4+7 + BA at 10 mg·L−1. For cut gladiolus, pulsing with GA4+7 + BA at 10 mg·L−1 extended the vase life of ‘Alice’, ‘Mammoth’, and ‘Passion’, while ‘Scarlet’ had the longest vase life when pulsed with 5 mg·L−1 GA4+7 + BA. GA4+7 + BA + preservative also extended the vase life and controlled leaf chlorosis, but the floral bulb preservative had no effect on vase life extension or preventing leaf chlorosis of lilies. Gladiolus cultivars had no or minor leaf chlorosis during vase period. Overall, overnight pulsing with GA4+7 + BA or GA4+7 + BA + preservative extended the vase life and prevented leaf chlorosis and can be used by growers and wholesalers for maintaining quality of cut stems.

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GA4+7 plus benzyladenine reduce foliar chlorosis of Lilium longiflorum

Cited by 19 publications

References 20 publications

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

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

Benzyladenine and Gibberellic Acid Application Prevents Abscisic Acid-induced Leaf Chlorosis in Pansy and Viola

Pulsing With Low Concentration Gibberellin Plus Benzyladenine or Commercial Floral Preservatives Affect Postharvest Longevity, Quality, and Leaf Chlorosis of Cut Lilies and Gladioli

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