scholarly journals Postharvest responses of Carnation cut flowers to Prunus cerasoides mediated silver nanoparticles

2020 ◽  
Vol 23 (4) ◽  
pp. 1818-1827
Author(s):  
Tu Thi Anh Le
Keyword(s):  
Silver Nanoparticles ◽  
Leaf Extract ◽  
Vase Life ◽  
Cut Flowers ◽  
Sem Images ◽  
Preservative Solution ◽  
Prunus Cerasoides ◽  
Flower Diameter ◽  
Flower Quality

Introduction: The procedure to synthesize silver nanoparticles (SNPs) from Prunus cerasoides leaf extract and their effect on vase life and flower quality of cut carnation were investigated. Methods: SNPs were bio-synthesized from Prunus cerasoides leaf extract and characterized by using UV-Vis technique, TEM, and SEM images. The postharvest responses of carnation cut flowers to the biosynthesis SNPs were evaluated through vase life, relative fresh weight, vase solution uptake, flower diameter of cut carnation. Results: SNPs were synthesized under optimum conditions, including using the extract of leaf heating at 60 oC in 30 min, 4 mM of silver nitrate, pH of 11, and 180 min of reaction time. SNPs exhibited antimicrobial activity and then alleviated the bacterial development in the preservative solution. All treatments with SNPs had improved the vase life and quality of cut carnation compared to the control. A vase solution containing 2% sucrose enhanced the carnation cut flowers. Conclusions: The preservative solution containing 25 ppm SNPs and 2% sucrose showed the best effect. SNPs could be used as a promising antibacterial agent applied in the preservative solution for cut carnation flowers.

scholarly journals Effects of Harvesting Stages, Preservatives, and Storage Methods on Vase Life and Flower Quality of Cut Snapdragons

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 835F-835
Author(s):  
Jong Suk Lee ◽  
Young A Kim ◽  
Young Mi Sin
Keyword(s):  
Vase Life ◽  
Plain Water ◽  
Fresh Weight ◽  
Water Control ◽  
Preservative Solution ◽  
Storage Methods ◽  
Flower Quality ◽  
And Storage ◽  
Preservative Solutions

Cut snapdragons (Antirrhinum majus L. cvs. Fujinoyuki, Oakland, and Bismarck) were harvested at three different stages and pulsed with silver thiosulfate (STS). Then, the flowers were treated with several preservative solutions to test the effects on vase life and flower quality. Proper storage methods were also investigated. The best harvesting time of snapdragon was when seven to nine florets were opened in a spike. The flowers harvested at this stage had more fresh weight, increased number of opened flowers per spike, and longer vase life than those harvested at earlier stages. Pulsing with 0.2 mM STS for 16 h improved flower quality and prolonged vase life. The preservative solution containing 2% sucrose + 150 ppm 8-hydroxyquinone citrate (HQC) + 25 ppm AgNO3 prolonged vase life. However, this solution caused longer internode between florets and excessive elongation of spike. The preservative solution containing 2% sucrose + 150 ppm HQC + 25 ppm AgNO3 + 50 ppm daminozide improved flower quality by prolonging vase life, reducing the length of internode between florets, and preventing excessive elongation of spike. The flowers held in 50% 7-Up had 2 times prolonged vase life compared to water control. The flowers held in 4% ethyl alcohol also had prolonged vase life and increased fresh weight. Ethylene caused floret abscission and STS pretreatment prevented this floret abscission. Ethylene production in cut snapdragons maintained 2 to 6 nl/g fresh weight per h during vase life. The prolonging storage at low temperature (1C) shortened vase life. The flowers pretreated with STS, and then held in preservative solution during cold storage, had better flower quality and longer vase life than those in plain water.

scholarly journals Postharvest Handling of Cut Inflorescences of Ebenus cretica L.

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 636e-636
Author(s):  
J.C. Vlahos ◽  
M. Papadimitriou
Keyword(s):  
Water Potential ◽  
Vase Life ◽  
Cut Flower ◽  
Cut Flowers ◽  
Average Life ◽  
Preservative Solution ◽  
Postharvest Treatments ◽  
Postharvest Handling ◽  
Flower Quality

Ebenus cretica, Leguminosae, is a perennial bush endemic to the island of Crete, and produces attractive pinky red or purple flowers on 15-cm long racemes. To study the possibility of its use as a cut flower, cut inflorescences on 40-cm-long spikes were taken from plants grown outdoors in the farm of the Technological Educati Institute and used to determine the postharvest characteristics of Ebenus flowers. Without any postharvest treatments, the inflorescences held in water had an average life of about 7 days. A solution of 100 ppm 8-hydroxyquinone sulfate (HQS) in DI water, supplemented with 5% Ca(NO)3 increased vase life for 2 days and improved the water potential without affecting transpiration, whereas the addition of 2% or 5% sucrose decreased vase life by 1 or 2 days respectively. Pulsing with 0.2 mm STS for 2 h improved flower quality and vase life. Addition of 6-BAP (2 ppm) or GA3 (3 ppm) in the preservative solution did not affect flower quality or vase life compared to control. These results indicate that inflorescences of Ebenus cretica may be used as cut flowers; however, further research is required to determine their sensitivity to ethylene as well as its storage capabilities.

scholarly journals Using Arachis pintoi leaf extracts in biosynthesis of silver nanoparticles for improving the vase life of cut carnation (Dianthus caryophyllus L.)

2020 ◽  
Vol 17 (4) ◽  
pp. 673-688
Author(s):  
Tran Lap Xuan ◽  
Le Ba Le ◽  
Le Thi Anh Tu
Keyword(s):  
Silver Nanoparticles ◽  
Dianthus Caryophyllus ◽  
Postharvest Quality ◽  
Vase Life ◽  
Cut Flowers ◽  
Leaf Extracts ◽  
Solution Ph ◽  
Arachis Pintoi ◽  
Flower Diameter ◽  
Average Size

A biological method for synthesizing silver nanoparticles (SNPs) using the leaf extracts of Arachis pintoi Krapov. & W.C. Greg. was developed.  The optimum conditions of input materials were found with leaf autoclaving in 15 min, 20 g fresh leave, and 4 mM of silver nitrate (AgNO3). To study the role of time, temperature, and solution pH of the reaction, varying time reaction (5, 30, 60, 90, 120, 150, and 180 min), temperature reaction (10, 20, 30, 40, and 50oC) and pH of the solution (1, 3, 5, 7, 9, and 11) were investigated. The optimal biosynthesis conditions were achieved in 180 min of reaction time at 50oC and pH 11. The obtained nanoparticles have spherical and oblong in shape with average size of 26.4 nm. The SNPs in 4 concentrationss (5, 15, 25, and 35 ppm) combined with and without 2% sucrose extended vase life, enlarged flower diameter, and maintained increase the relative fresh weight with vase solution uptake rate. SNPs inhibited significantly the bacterial growth in the stem end and vase solution, reduced the blockage in stems and therefore promoted the postharvest quality of carnation cut flowers. Out of the treatments, administration of 5 ppm SNPs with 2% sucrose of vase solution gave the best results for all parameters. The biosynthesis SNPs could be applied as a promising preservative solution for carnation cut flowers.

scholarly journals Comparative Analysis of the Quality of Domestically Distributed Cut Phalaenopsis Flowers Based on the Season and Place of Origin

Horticulturae ◽  
2021 ◽  
Vol 7 (10) ◽  
pp. 382
Author(s):  
Hyun Kyung Kim ◽  
Ae Kyung Lee
Keyword(s):  
Water Uptake ◽  
Tap Water ◽  
Sugar Content ◽  
Water Levels ◽  
Vase Life ◽  
Cut Flowers ◽  
Flower Diameter ◽  
Treatment Agent ◽  
Place Of Origin ◽  
Flower Quality

This study compared and analyzed the qualities of cut Phalaenopsis “V3” flowers based on the place of origin and season. An investigation of the senescence type showed that flowers originating from Korea had a higher rate of aging than those from China across all three seasons. Consequently, the vase life was also 3–5 days longer for Chinese flowers than those for Korean flowers, regardless of the season. Furthermore, the vase life was the longest in autumn, followed by spring and summer, with statistically significant differences. With respect to flower diameter, Chinese cut phalaenopsis flowers were relatively larger than the Korean ones on day 1 of the experiment. As the senescence process of wilting was initiated earlier in Korean flowers with a shorter vase life, they showed higher reductions in flower diameters as well. The fresh weight, water uptake, and water balance were lower for Korean flowers than those for Chinese flowers starting on day 5 of the experiment across all three seasons. Korean cut phalaenopsis flowers experienced difficulties in maintaining water levels following their water uptake on day 1, which may have affected their vase life. Ethylene production showed a sharp increase on day 7 in Chinese cut flowers and day 5 in Korean cut flowers, with high amounts typically observed in spring, which coincided with the results of water loss. Hunter values L, a, and b and changes petal color ⊿E significantly differed not by place of origin but by season. Additionally, the sugar content of the solution inside the water tubes used when selling cut phalaenopsis flowers was investigated. Chinese flowers are subjected to pretreatment and posttreatment inside the water tube before being exported, while Korean flowers are treated with tap water. The Chinese flowers contained approximately seven times more sugar content compared to Korean flowers. This suggests that the treatment solution components, including sugar and other ingredients, of the Chinese cut flowers had a positive effect on water uptake and lowered the sensitivity to ethylene, which seemed to have an effect on the long vase life and quality. If Korean cut flowers are also distributed using a treatment agent, it is expected that the vase life will be improved and the satisfaction of consumers will be increased. However, since there are several possibilities that can affect post-harvest quality, it seems that additional experiments are needed. Moreover, as flower quality decreases in summer compared to those in spring or autumn, it will be necessary to reduce the differences in quality between seasons.

scholarly journals Effect of oxalic acid on vase life and antioxidative activities of ‘Mero Star’ cut lily flowers

2021 ◽  
pp. 56-61
Author(s):  
Hafiz Farooq Anwar ◽  
Hafiz Muhammad Shoaib Shah ◽  
Abdul Waheed ◽  
Mudassar Anwar Butt ◽  
Hafiz Zafar-ul-Qasim ◽  
...  
Keyword(s):  
Oxalic Acid ◽  
Electrolyte Leakage ◽  
Oxidative Enzymes ◽  
Postharvest Quality ◽  
Vase Life ◽  
Cut Flowers ◽  
Relative Water ◽  
Flower Diameter ◽  
Peroxidase Enzymes

Lily (Lilium L. hybrids) is sub-tropical cut flower that can be grown in open place or in green house and has consumer demand in local as well as in offshore markets. Short vase life, postharvest decay of flowering petals, activities of oxidative enzymes, malondialdehyde contents, electrolyte leakage and low water ratio are the main problems in marketing of cut lilies. This study was carried out to investigate the effect of oxalic acid (OA) treatments on vase life (12 days) and postharvest quality of ‘Mero Star’ cut lily flowers. The flowering stems were placed in 2, 4 and 6% aqueous solution of OA for 12 days at 20±2 °C with 70±5% relative humidity. Flowers placed in 6% OA solution exhibited longest vase life and flower diameter with higher relative water content and increased fresh weight and reduced flower decay. Reduced malondialdehyde contents and electrolyte leakage with higher activities of catalase, superoxide dismutase and peroxidase enzymes were also noted in 6% OA-treated flowers. In conclusion, exogenous postharvest application of 6% OA extended vase life and maintained postharvest quality of cut flowers by reducing electrolyte leakage and malondialdehyde contents with higher antioxidative enzymes activities.

scholarly journals Postharvest Treatments Improve Quality of Cut Peony Flowers

Agronomy ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1583
Author(s):  
Julita Rabiza-Świder ◽  
Ewa Skutnik ◽  
Agata Jędrzejuk ◽  
Aleksandra Łukaszewska
Keyword(s):  
Ornamental Plants ◽  
Vase Life ◽  
Flower Longevity ◽  
Cut Flowers ◽  
Carbohydrate Accumulation ◽  
Postharvest Treatments ◽  
Flower Diameter ◽  
Physiological And Biochemical ◽  
Tylose Formation

Peony is one of the most important ornamental plants in the international flower market, but has a relatively short vase life in water. This study tested the effects of 8-hydroxyquinoline citrate (8-HQC) and nanosilver (NS) in combination with sucrose, as well as two commercial preservatives, on the longevity and some physiological and biochemical aspects of senescence of cut flowers of 14 cultivars. Responses varied both by cultivar and treatment. The preservatives extended the vase life in only five cultivars; however, in nine cultivars, preservatives increased the flower diameter and improved the general flower appearance. Blockages in xylem vessels started to appear soon after harvest. Both NS and 8-HQC with sucrose prevented tylose formation, while bacterial blockages were reduced only by the NS solution. Reduction in stem blockages did not translate into better water balance or flower longevity. The highest carbohydrate accumulation in petals was observed in the NS solution. Preservatives mitigated the rise in free amino acids, including free proline. They did not prevent an increase in H2O2 content but flowers in preservatives generally had higher catalase activity than in the control. As solutions with NS produced comparable or even better results than 8-HQC, we recommend the latter as a component of a preservative for cut peony flowers. However, cultivar-specific responses indicate that postharvest treatments must be individually tailored to each cultivar.

scholarly journals Effect of Ascorbic Acid, 8-Hydroxyquinoline Sulfate and Sucrose on the Longevity and Anthocyanin Content of Cut Gerbera Flowers

2013 ◽  
Vol 1 (1) ◽  
pp. 29-33 ◽  
Author(s):  
Samaneh Banaee ◽  
Ebrahim Hadavi ◽  
Pejman Moradi
Keyword(s):  
Ascorbic Acid ◽  
Dry Weight ◽  
Quality Score ◽  
Vase Life ◽  
Anthocyanin Content ◽  
Limited Extent ◽  
Cut Flowers ◽  
Fresh Weight ◽  
Preservative Solution ◽  
Flower Diameter

The effects of ascorbic acid (AsA), 8-hydroxyquinoline sulfate (8-HQS) and sucrose (Suc) on cut gerbera was studied. AsA (0, 100 and 150 mg L-1), 8-HQS (0 and 200 mg L-1) and Suc (0 and 30 g L-1) and their combinations were tested as preservative mixtures. Vase life was determined as the days until the flowers started to wilt and then dry weight and anthocyanin content were measured. The following records were analyzed at the 7th day of experiment: mean uptake of preservative solution, dry weight, flower diameter and quality score of cut flowers. The only measure improved by ascorbic acid was the flower diameter. The 8-HQS treatment increased vase life, dry weight, anthocyanin content, fresh weight, flower diameter and mean uptake of preservative solution. Sucrose decreased vase life, anthocyanin content and increased dry weight and flower diameter and mean uptake of preservative solution. The treatment containing the combination of 100 mg L-1 AsA + 200 mg L-1 8-HQS + 30 g L-1 sucrose resulted in the highest vase life but this was not significantly different from the controls. The highest anthocyanin content was noted in the 150 mg L-1 AsA treatment. The combination of 100 mg L-1 AsA + 200 mg L-1 8-HQS + 30 g L-1 Suc resulted the highest flower diameter. We conclude that AsA could improve the anthocyanin content and flower diameter of flowers and its addition to preservative mixtures based on 8-HQS could improve its effect to a limited extent.

scholarly journals Influence of gibberellic acid on the physiology and flower quality of gerbera and lily cut flowers

2021 ◽  
Vol 48 (1) ◽  
pp. 21-33
Author(s):  
Yahia Othman ◽  
◽  
Malik Al-Ajlouni ◽  
Tala A’saf ◽  
Hanadi Sawalha ◽  
...  
Keyword(s):  
Gibberellic Acid ◽  
Seedling Stage ◽  
Vase Life ◽  
Flower Initiation ◽  
Shoot Height ◽  
Days To Flowering ◽  
Pedicel Length ◽  
Flower Diameter ◽  
Flower Quality

The objective of this study was to assess the influence of different foliar gibberellic acid (GA3) levels (0, 10, 50, and 200 mg L-1) and application timing on the growth, physiology (chlorophyll and gas exchange) and flower quality of gerbera (Gerbera jamesonii cvs. Beaudine and Palm Beach) and Asiatic lily (Lilium × elegans cvs. Fangio and Eldivo). The application of GA3 (50 mg L-1) increased (p < 0.05) gerbera shoot height (30%), pedicel length (20%), and vase life (12.5%) and decreased the number of days to flowering (7%) compared to the control. GA3 application at the seedling stage increased pedicel length and flower diameter compared to GA3 treatment at the flower initiation stage. However, the chlorophyll content index, photosynthesis (Pn), stomatal conductance (gs) and transpiration (E) were similar across the study period. For Asiatic lily, 10 and 50 mg L-1 were the best GA3 levels in terms of leaf gs, E and flower diameter. Compared to 0, 10 and 50 mg L-1-GA3, 200 mg L-1-GA3 decreased the number of days to flowering. Overall, the application of 50 mg L-1-GA3 to gerbera and lily cultivars at the seedling stage can potentially improve flower quality and shorten the number of days to flowering.

scholarly journals Effect of post harvest treatments and harvesting stage on vase life and flower quality of cut Oriental lily

2016 ◽  
Vol 8 (3) ◽  
pp. 1286-1289 ◽  
Author(s):  
Narendra Chaudhary ◽  
Ramesh Kumar ◽  
S. S. Sindhu ◽  
T. N. Saha ◽  
Ajay Arora ◽  
...  
Keyword(s):  
Development Stage ◽  
Vase Life ◽  
Post Harvest ◽  
Flower Diameter ◽  
Colour Development ◽  
Harvesting Stage ◽  
Flower Quality ◽  
Oriental Lily ◽  
Solution Uptake

An investigation was carried out to study the effect of post harvest treatments and harvesting stage on vase life and flower quality of cut Oriental lily cv. Avocado. The results showed that highest vase life (15.83 days) and vase solution uptake (49.17 ml) was recorded with sucrose (2%) + 5-SSA (200ppm), whereas maximum flower diameter (15.17 cm) was recorded in vase solution containing sucrose (2%) + 5-SSA (100ppm). Earliest opening of florets (4.42 days) reported under sucrose (2%) + 5-SSA (200ppm). Effect of treatments was found non-significant in respect to opening of florets. Harvesting at green bud stage exhibited extended vase life (14.33 days) and higher vase solution uptake (40.43 ml), whereas maximum flower diameter (14.25 cm) recorded at 75% colour development stage. Based on the results it is concluded that 5-SSA could be an inexpensive and potential chemical for delaying senescence and for extending the keeping quality of cut liliums commercially.

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