Influence of type and concentration of sugars, supplemented with 8-hydroxyquinoline sulphate, on the vase life of waxflower

AbstractA study was conducted to test the effect of 58.5 mM maltose, glucose, fructose, galactose and sucrose, and sucrose concentrations of 14.6, 29.2, 58.5 and 117.0 mM supplemented with 200 mg L-18-hydroxyquinoline sulphate (HQS) on the vase life and stem fresh weight changes in waxflower (Chamelaucium Desf.). The effect of the interaction between sucrose and HQS concentrations on the vase life of the cultivar ‘Alba’ was also investigated. All the types of exogenous sugar significantly increased the vase life of flowers, but decreased the vase life of leaves of waxflower cultivars compared with the deionized water controls, except the leaves of ‘Lady Stephanie’, ‘Purple Pride’ and ‘Mullering Brook’. The flower vase life of almost all the cultivars treated with sucrose was not significantly different from the life of the cultivars kept in fructose and glucose, except ‘Laura Mae Pearl’, whose flower vase life in sucrose was significantly lower (9.7%) than in fructose. By contrast, the vase life of flowers of the cultivars treated with sucrose was longer than of those in maltose and galactose. At sucrose concentrations of up to 117.0 mM coupled with 200 mg L-1HQS, the flower vase life of six out of eight cultivars significantly increased, except in ‘Laura Mae Pearl’ and ‘Mullering Brook’, whose flower vase life was maximized at the concentrations of 29.2 and 58.5 mM respectively, while the vase life of their leaves decreased. Sucrose concentrations from 14.6 to 29.2 mM coupled with 50 mg L-1HQS maximized vase life for both the flowers and leaves of ‘Alba’. Cultivars with a longer vase life of flowers maintained stem fresh weight above the initial stem fresh weight longer.

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Curcuma alismatifolia vase life

Ornamental Horticulture ◽

10.14295/oh.v23i1.989 ◽

2017 ◽

Vol 23 (1) ◽

pp. 101

Author(s):

Bruno Trevenzoli Favero ◽

Giuseppina Pace Pereira Lima ◽

John Dole

Keyword(s):

Deionized Water ◽

Control Treatment ◽

Vase Life ◽

Cut Flower ◽

Fresh Weight ◽

Solution Composition ◽

Postharvest Handling ◽

Growing Conditions ◽

Industry Needs ◽

Positive Effect

Cut curcuma stem has a reported vase life of 7 to 21 days and this difference in vase life is probably due to a combination of different factors such as growing conditions and postharvest treatments. However, the cut flower industry needs key postharvest information for new species and cultivars to be able to effectively market the flowers. The objectives of this study was to evaluate the effect of commercial hydrator and holding solutions, commercial growth regulator formulation, floral foam, ethylene and silver thiosulfate (STS) on the postharvest handling of C. alismatifolia cultivars. Control treatment (deionized water) had better vase life than the combinations of the commercial hydrator for 4h and commercial holding solution for 44h. Floral foam reduced vase life to 17 days from 23 days for the control treatment. The growth regulators gibberellin plus benzyladenine (GA4+7 + BA) had a positive effect on the fresh weight keeping parameter, but further studies are necessary. STS did not improve vase life, nor did ethylene at 1 µL L-1 reduce it. The curcuma cultivars tested were not positively affected by vase solution composition and had an average vase life in deionized water of 21 days.

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Genotype of Flowering Stems of Antirrhinum majus L. Influences Ethylene Evolution and Fresh Weight Changes Postharvest

HortScience ◽

10.21273/hortsci.31.4.617d ◽

1996 ◽

Vol 31 (4) ◽

pp. 617d-617

Author(s):

Dennis P. Stimart ◽

Kenneth R. Schroeder

Keyword(s):

Weight Change ◽

Deionized Water ◽

Antirrhinum Majus ◽

Cut Flowers ◽

Weight Changes ◽

Fresh Weight ◽

Ethylene Evolution ◽

Postharvest Life ◽

Final Amount

Cut flowers of a short (S)-lived (3-day) inbred, a long (L)-lived (15-day) inbred and their hybrid (F1, 7.3 days) of Antirrhinum majus L. were evaluated for fresh weight and ethylene evolution change postharvest when held in deionized water. Fresh weight change of all accessions increased 1 day postharvest then declined over the remainder of postharvest life. The loss of fresh weight was most rapid for S and less rapid for F1 and least rapid for L. Ethylene release postharvest for S and F1 started on day 1, but for L ethylene release started on day 9. Once ethylene evolution began it continued through postharvest life. On the last day of postharvest life, ethylene release from S and F1 were similar, but L was twice the level as S and F1. It appears that a slower decline in fresh weight, a delay in outset of ethylene release and higher final amount of ethylene release at senescence are heritable and associated with longer keeping time of A. majus.

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The effect of some solutions on the vase life of star flowers

Ornamental Horticulture ◽

10.1590/2447-536x.v26i4.2184 ◽

2020 ◽

Vol 26 (4) ◽

pp. 607-613

Author(s):

Onur Sefa Alkaç ◽

Osman Nuri Öcalan ◽

Mehmet Güneş

Keyword(s):

Gibberellic Acid ◽

Agricultural Research ◽

Deionized Water ◽

Vase Life ◽

Cut Flowers ◽

Fresh Weight ◽

Water Control ◽

Thyme Oil ◽

Daily Solution ◽

Solution Uptake

Abstract This study was carried out on the flowers of 'Le Castel' Dahlia (starflower) cultivated in Tokat Gaziosmanpaşa University Agricultural Research and Application Center in 2019. The study aimed to prolong the vase life of Dahlia flowers used as cut flowers. Deionized water (control), sucrose + deionized water, thyme oil, lavender oil, carvacrol, thymol, sodium hypochlorite, and gibberellic acid were used as vase solutions. The total vase solution uptake (g/stem), daily vase solution uptake (g/day fresh weight (FW)), proportional FW (%) and vase life (day) parameters were determined based on Dahlia flowers that harvested at different harvest stages (3, 4 and 5 layers). As a result; the most extended vase life was measured in the gibberellic acid treatment (8.22 days), the highest proportional fresh weight was measured in the carvacrol in the 6th day (139.78%), the highest daily solution uptake was measured in the thyme oil in 0-2 days (11.7 g/day FW) and the highest total solution uptake was measured in the thyme oil (27.5 g/stem). It was concluded that the vase life of earlier harvested flowers was longer than of late harvested.

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Prolonging the Vase Life of Snapdragons and Carnations with a Natural Lipid, Lysophosphatidylethanolamine (LPE)

HortScience ◽

10.21273/hortsci.31.4.636f ◽

1996 ◽

Vol 31 (4) ◽

pp. 636f-637 ◽

Cited By ~ 1

Author(s):

Navjot Kaur ◽

Jiwan P. Palta

Keyword(s):

Ethylene Production ◽

Early Stage ◽

Membrane Integrity ◽

Dianthus Caryophyllus ◽

Stage Iv ◽

Deionized Water ◽

Vase Life ◽

Ion Leakage ◽

Fresh Weight ◽

Flower Opening

Freshly cut snapdragon (Antirrhinum majus L) spikes or carnation (Dianthus caryophyllus L cv. White Sim) stems were put in LPE (10 ppm for carnation, 25 ppm for snapdragon) solution for 24 hours and then transferred to deionized water. Parallel controls were kept continuously in deionized water. Snapdragon spikes were harvested when they had one-third of the florets opened which is a standard commercial practice. The carnations used in the experiment were harvested at three different stages of flower development starting from open brush bud stage (Stage IV) to fully opened (Stage VII, petals 45(to the stem) flower. LPE treatment delayed senescence in snapdragon by four days. Furthermore, it enhanced the opening of floral buds and opened all the florets on every spike. LPE treatment also significantly delayed loss in fresh weight of spikes associated with senescence, lowered the endogenous ethylene production and reduced ion leakage from florets. LPE had a similar effect on fresh weight and ion leakage from carnations if it was applied at an early stage of flower opening. Older carnations (Stage VII) were found unresponsive to LPE. In conclusion, LPE has the potential in enhancing the vase life of snapdragons and carnations. Carnations must be harvested at the open brush bud stage for effective LPE application. Our results suggest that LPE is prolonging vase life of cut flowers by reducing ethylene production and maintaining membrane integrity.

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Vase life and rehydration capacity of dry-stored gladiolus flowers at low temperature

Ciência Rural ◽

10.1590/0103-8478cr20160139 ◽

2017 ◽

Vol 47 (2) ◽

Cited By ~ 2

Author(s):

Lucas Cavalcante da Costa ◽

Fernanda Ferreira de Araújo ◽

Mirelle Nayana de Sousa Santos ◽

Paula Cristina Carvalho Lima ◽

Ariana Mota Pereira ◽

...

Keyword(s):

Low Temperature ◽

Cold Storage ◽

Room Temperature ◽

Storage Conditions ◽

Deionized Water ◽

Vase Life ◽

Fresh Weight ◽

Flower Opening ◽

Dry Storage ◽

Relative Water

ABSTRACT: Normally, it is not recommended the conditioning of gladiolus stems in water during storage or transport. Hydration of petals may accelerate flower opening, even at a low temperature, which compromises quality at marketing moment. However, for this species, neither the effect of prolonged dry cold storage nor its behavior when transferred to water at room temperature has been evaluated. The present study aimed to evaluate the vase life and the rehydration capacity of gladiolus flowers ( Gladiolus grandiflora Hort.) after dry storage at low temperature. Flower stems of cultivars Blue Frost, Gold Field, Traderhorn, and Jester were dry-stored at a temperature of 5 ± 1 ºC and relative humidity of 85% for 12, 24, 36, and 48h. Control stems remained always in deionized water. After storage, they were returned to the water at room temperature and evaluated for vase life (adopting the discard criterion when 50% of the basal flowers displayed loss of color and wilting), fresh weight change (%), water uptake rate and transpiration rate, as well as relative water content of the petals (%). In dry cold storage conditions, for up to 36h, the vase life was not affected although incomplete rehydration of the flowers. Rehydration capacity of the stem is linked to the staggered opening of flowers along the inflorescence.

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Improving the Keeping Quality and Vase Life of Cut Alstroemeria Flowers by Pre and Post-harvest Salicylic Acid Treatments

Notulae Scientia Biologicae ◽

10.15835/nsb539095 ◽

2013 ◽

Vol 5 (3) ◽

pp. 364-370 ◽

Cited By ~ 3

Author(s):

Elnaz SOLEIMANY-FARD ◽

Khodayar HEMMATI ◽

Ahmad KHALIGHI

Keyword(s):

Salicylic Acid ◽

Water Balance ◽

Chlorophyll Content ◽

Water Loss ◽

Vase Life ◽

Total Chlorophyll ◽

Cut Flowers ◽

Fresh Weight ◽

Total Chlorophyll Content ◽

Keeping Quality

Keeping quality and length of vase life are important factors for evaluation of cut flowers quality, for both domestic and export markets. Studding the effect of pre- and post-harvest salicylic acid applications on keeping quality and vase life of cut alstroemeria flowers during vase period is the approach taken. Aqueous solutions of salicylic acid at 0.0 (with distilled water), 1, 2 and 3 mM were sprayed to run-off (approximately 500 mL per plant), about two weeks before flowers harvest. The cut flowers were harvested in the early morning and both of cut flowers treated (sprayed) and untreated were kept in vase solutions containing salicylic acid at 0.0 (with distilled water), 1, 2 and 3 mM. Sucrose at 4% was added to all treatments as a base solution. The changes in relative fresh weight, water uptake, water loss, water balance, total chlorophyll content and vase life were estimated during vase period. The results showed that the relative fresh weight, water uptake, water balance, total chlorophyll content and vase life decreased significantly while the water loss increased significantly during experiment for all treatments. A significant difference between salicylic acid and control treatments in all measured parameters is observed. During vase period, the salicylic acid treatments maintained significantly a more favourable relative fresh weight, water uptake, water balance, total chlorophyll content and supressed significantly water loss, as compared to control treatment. Also, the results showed that the using salicylic acid increased significantly the vase life cut alstroemeria flowers, over control. The highest values of measured parameters were found when plants were treated by pre + post-harvest application of salicylic acid at 3 mM. The result revealed that the quality attributes and vase life of cut alstroemeria flowers were improved by the use of salicylic acid treatment.

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Uptake and Translocation of Nitrofen and Oxyfluorfen

Weed Science ◽

10.1017/s0043174500033063 ◽

1977 ◽

Vol 25 (2) ◽

pp. 111-114 ◽

Cited By ~ 10

Author(s):

Omosuyi Fadayomi ◽

G.F. Warren

Keyword(s):

Glycine Max ◽

Phaseolus Vulgaris ◽

Pisum Sativum ◽

Herbicidal Activity ◽

Fresh Weight ◽

Root Exposure ◽

Almost All ◽

Species Translocation ◽

Test Plants ◽

Pot Technique

The site of uptake of nitrofen (2,4-dichlorophenyl-p-nitrophenyl ether) and oxyfluorfen [2-chloro-1-(3-ethoxy-4-nitrophenoxy)-4-(trifluoromethyl)benzene] was studied using a double pot technique. Sorghum [Sorghum bicolor(L.) Moench ‘RS610′] and pea (Pisum sativumL. ‘Alaska’) were the test plants. Herbicidal activity measured by the reduction in fresh weight of the roots and shoots of treated plants showed that exposure of the shoot zone to the herbicides caused much more injury to the plants than root exposure. Translocation of both compounds from root applications to tops of pea and sorghum was studied using14C-labeled herbicides. There was very little movement of the compounds from the roots of both species. Translocation of the compounds from foliage application was studied using greenbean (Phaseolus vulgarisL. ‘Spartan Arrow’) and soybean [Glycine max(L.) Merr ‘Wayne’]. Almost all of the applied14C-herbicides remained at the point of application.

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The Use of Solvent-Gel Systems for the Cleaning of PMMA

MRS Advances ◽

10.1557/adv.2017.249 ◽

2017 ◽

Vol 2 (39-40) ◽

pp. 2179-2187 ◽

Cited By ~ 1

Author(s):

Stefani Kavda ◽

Emma Richardson ◽

Stavroula Golfomitsou

Keyword(s):

Weight Change ◽

Microscopic Observation ◽

Deionized Water ◽

Polymer Gel ◽

Application Time ◽

Weight Changes ◽

Damage Potential ◽

Designed Experiments ◽

Aqueous Polymer ◽

Sem Imaging

ABSTRACT This paper discusses the use of solvent-gel systems for the cleaning of poly (methyl methacrylate) (PMMA) surfaces. Aqueous polymer gel systems have been introduced to the conservation field with a particular focus on paintings, painted surfaces of wooden artefacts and stone. However, their application on plastics is very recent. Statistically designed experiments aimed to assess the efficiency and damage potential of materials constituting selected solvent-gel cleaning systems. The effect of the free solvents (deionized water, ethanol, isopropanol and petroleum ether), the hydrogel carriers (Agar, Pemulen™ TR-2, Carbopol® EZ 2-Ethomeen® C-25 and 80% hydrolysed PVAc-borax) and their combinations after 5 and 60 minutes of application time on PMMA surfaces, were evaluated through qualitative visual microscopic observation and SEM imaging, and quantitative weight change measurements. Visual observations revealed that the action of solvents (i.e. ethanol and isopropanol) was moderated by gellation (i.e. Agar), while other gel systems (i.e. Pemulen) were unsatisfactory. Results of gravimetric studies showed that most solvent-gels resulted in inconsistencies and large weight changes.

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Involvement of ethylene in postharvest senescence of Boronia heterophylla flowers

Australian Journal of Experimental Agriculture ◽

10.1071/ea99046 ◽

1999 ◽

Vol 39 (7) ◽

pp. 911 ◽

Cited By ~ 10

Author(s):

A. J. Macnish ◽

P. J. Hofman ◽

D. C. Joyce ◽

D. H. Simons

Keyword(s):

Ethylene Production ◽

Flower Senescence ◽

Vase Life ◽

Fresh Weight ◽

Endogenous Ethylene ◽

Pre Treatment ◽

Postharvest Senescence

Summary. Treatment of cut flowering Boronia heterophylla (red boronia) stems with 10 L ethylene/L for 72 h at 20°C induced flower senescence and abscission, and thereby reduced stem fresh weight and vase life. Pre-treatment with 1-methylcyclopropene (1-MCP) reduced these ethylene effects. Treatment of B. heterophylla with 10 L ethylene/L for a shorter 12 h period at 20°C did not affect vase life. Rates of endogenous ethylene production by B. heterophylla flowers increased in association with wilting during flower senescence.

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Immersion and Leach Tests on Solidified Decontamination Wastes From Dresden Unit 1

MRS Proceedings ◽

10.1557/proc-6-141 ◽

1981 ◽

Vol 6 ◽

Author(s):

Robert E. Barletta ◽

Jay W. Adams ◽

Richard E. Davis

Keyword(s):

Nuclear Power ◽

National Laboratory ◽

Brookhaven National Laboratory ◽

Sample Volume ◽

Deionized Water ◽

Organic Liquids ◽

Weight Changes ◽

Release Rates ◽

Saturated Water ◽

Water Saturated

ABSTRACTIn order to provide technical support to the NRC, Brookhaven National Laboratory has performed leach tests and immersion tests using organic liquids and organic saturated water of concentrated decontamination waste solidified using a vinyl ester-styrene binder.The leach tests measured the release of Fe, Ni, and Co from these forms in deionized water, groundwater, and seawater. After 64 days, the mean fraction released normalized by V/S for iron was 5.1 ± 1.9 × 10−3 cm in deionized water, 7.1 ± 1.1 × 10−3 cm in groundwater, and 9.0 ± 3.2 × 10−3 cm in seawater. For nickel, 64 day release rates observed were 4.6 ± 1.6 × 10−3 cm, 4.6 ± 1.0 × 10−3 cm, and 5.9 ± 0.6 × 10−3 cm in deionized water, groundwater, and seawater, respectively. After 50 days, the 59 Fe release rates were 5.9 ± 0.7 × 10−3, 4.8 ± 2.4 × 10−3, and 2.8 ± 1.0 × 10−3 cm in deionized water, groundwater, and seawater, respectively. For 60Co, the 50 day releases in the three respective leaching media were 6.0 ± 1.7 × 10−3 cm, 6.8 ± 1.0 × 10−3 cm, and 2.3 ± 0.2 × 10−3 cm.Immersion tests of waste forms prepared at a solidification demonstration held at the Dresden Nuclear Power Station were conducted in toluene, xylene, and water saturated with toluene and xylene. During immersion of samples in the pure organics, large changes in sample volume and weight were observed. Total weight changes of 9.6 ± 0.3% and 21.6 ± 0.7% were observed after 839 hours of immersion in xylene and toluene, respectively. Air drying of the samples led to an overall weight loss of 23.5 ± 0.7% for xylene and 35.6 ± 0.6% for toluene. Qualitatively, similar changes were observed for immersion tests using organic saturated water. Severe sample deterioration was observed in this case, however. The cause of this deterioration is not known.

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