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 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 Aluminum Sulphate, Ethanol, Sucrose and their Combination on the Longevity and Physiological Properties of Rose (Rosa hybrida L.) Cut Flowers

2020 ◽  
Vol 28 (1) ◽  
pp. 29-38
Author(s):  
Hailay Gebremedhin
Keyword(s):  
Deionized Water ◽  
Rosa Hybrida ◽  
Vase Life ◽  
Flower Longevity ◽  
Cut Flowers ◽  
Physiological Properties ◽  
Aluminum Sulphate ◽  
Single Use ◽  
Cut Rose

AbstractCut rose stems were pretreated for 24 h with various compounds before being stored in Chrysal solution. Two experiments were conducted to study the effects of different concentrations of aluminum sulphate, ethanol and sucrose in preservative solutions and their combination on flower longevity and post-harvest physiological properties of rose (Rosa hybrida L.) cut flowers cultivars ‘Red Sky’ and ‘Blizzard’. The first experiment aimed to determine the optimum concentration of aluminum sulphate used as a biocide (0, 0.5, 1, 1.5 g·dm−3), ethanol used as a biocide and anti-ethylene factor (0, 4, 8, 12%) and sucrose used as a source of energy (0, 10, 20, 30 g·dm−3). In the second experiment, the most effective concentrations were cumulated in combinations of pretreatment solutions. Single use of chemicals: 0.5 g·dm−3 aluminum sulphate, 4% ethanol and 20 g·dm−3 sucrose extended the longevity of both cultivars by 17, 18 and 19%, respectively as compared to deionized water. In the second experiment, the preservative solution containing all three chemicals at optimal concentrations extended cut flower longevity by 30% compared to deionized water. ‘Blizzard’ has lost its commercial value by 6.6% of the time earlier than ‘Red Sky’. Generally, using a biocide, anti-ethylene and source of energy in a pretreatment solution can maintain the high quality of the cut rose flowers and their vase life.

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 Promotion of flower opening in cut rose cultivars by 1-naphthaleneacetic acid treatment

2021 ◽  
Author(s):  
Takanori Horibe ◽  
Maho Makita
Keyword(s):  
Water Solution ◽  
Ornamental Plants ◽  
Vase Life ◽  
Naphthaleneacetic Acid ◽  
Chemical Agent ◽  
Cut Flowers ◽  
Fresh Weight ◽  
Flower Opening ◽  
Flower Diameter ◽  
Cut Rose

ABSTRACT Improving the quality and rate of opening of cut flowers is important to meet consumer demand. Thus, it is important to develop methods to control the rate of flower opening and senescence in ornamental plants. In this study, we investigated the effects of 1-naphthaleneacetic acid (NAA) in flower opening in rose (Rosa sp.) cultivars Princess Meg, Red Star and Madrid. Cut roses were maintained under different concentrations of NAA. Shoot bases were immersed in water solution containing 0, 100, and 1,000 μM NAA, in addition to 2% w/v sucrose with 0.02% w/v 8-hydroxyquinoline monohydrate. Subsequently, their vase life, flower opening, flower diameter and petal weight were measured. Flower opening in all three cultivars was clearly promoted by the 1,000 μM NAA treatment, resulting in higher petal fresh weight and flower diameter at 2 days following treatment. 100 μM NAA treatment also promoted flower opening and petal wilting in three cultivars, although the decrease in relative fresh weight of cut rose became slower and vase-life became longer than 1,000 μM NAA treatment in “Madrid”. This indicates that NAA promotes flower opening and petal growth in three cut rose cultivars. However, NAA treatment also promoted petal wilting, resulting in shorter vase-life. Although rose cultivars differed in their sensitivity to the NAA treatment, we conclude that NAA shows high potential as a chemical agent for controlling flower opening in cut rose cultivars.

scholarly journals Post-harvest longevity and ornamental value of cut inflorescences of Crocosmia ×crocosmiiflora ‘Lucifer’ depending on flower food and storage conditions

2019 ◽  
Vol 18 (4) ◽  
pp. 137-148
Author(s):  
Piotr Żurawik ◽  
Paulina Kukla ◽  
Agnieszka Żurawik
Keyword(s):  
Relative Humidity ◽  
Ornamental Plants ◽  
Storage Conditions ◽  
Vase Life ◽  
Cut Flowers ◽  
Post Harvest ◽  
Exchange Markets ◽  
And Storage

Floral exchange markets drive steadily growing interest in ornamental plants sold as cut flowers. Unfortunately, vase life of some of these flowers remains unsatisfactory. Their ornamental value depends on their longevity and number of flowers, as well as overall appearance of the stem during its vase life. Our study determined the effects of storage conditions and Floralife flower food on vase life and ornamental value of Crocosmia ×crocosmiiflora ‘Lucifer’. Crocosmia inflorescences can be attractive cut flowers after meeting some basic requirements. Cutting the branched shoots when the first flower in the main inflorescence was fully open, the second was opening and the subsequent buds showed visible color allowed for maintaining their decorative value for an average of 18.8 days, irrespective of storage conditions and flower food. Vase life and ornamental value depend on storage conditions. Keeping the inflorescences in a semi-lit room (16.8 µmol∙m–2∙s–1), at 18–20°C, and relative humidity of 55–60% or in darkness, at 14–16°C, and relative humidity of 60–70% reduced the number of developed flowers, inflorescence weight and the amount of absorbed solution, and also declined inflorescence vase life. Application of Floralife 200 and Floralife 300 flower food increases the vase life by respectively 7.9 and 8.2 days vs. water, and improves the quality of stored inflorescences.

scholarly journals Prolonging the vase life of cut Carnation 'GIOKO' by using different chemicals

2008 ◽  
Vol 14 (4) ◽  
Author(s):  
O. Terék ◽  
F. A. S. Hassan ◽  
E. Jámbor-Benczúr ◽  
Á. Máthé
Keyword(s):  
Untreated Control ◽  
Dianthus Caryophyllus ◽  
Vase Life ◽  
Distilled Water ◽  
Cut Flowers ◽  
Chemical Treatments ◽  
All Solutions ◽  
Separate Treatment ◽  
Flower Diameter ◽  
Positive Effect

Cut flowers of Dianthus caryophyllus L. cv. GIOKO were treated with different concentrations of sucrose and in combination with 1­methylcyclopropene (1-MCP) to compare the effect of these treatments with floral preservative (`Spring') on the longevity of flowers. Distilled water was used for preparing all solutions. The control flowers were held in distilled water. Clorox at 2 mL- I was added to all treatments containing sucrose and it was also applied as a separate treatment. The vase life of cut carnations was significantly prolonged due to the use of chemical treatments, as compared to the untreated control. The longest vase life (18.33 days) was obtained by using 1-MCP 0.5 g m-3 for 6 h treatment. All concentrations of sucrose had a positive effect on flower diameter. The best treatment in this respect was 1 -MCP with 30 gL-I sucrose. 1-MCP treatment significantly increased the chlorophyll content, as compared to the control or the "Spring" treatment. The highest values in this respect were obtained by 1 -MCP treatment alone or with the lowest level of sucrose. The effect of these treatments on the pH of solutions is discussed.

scholarly journals Study on the vase life of Chyrsanthemum indicum cultivar Sakura cutting flower

2020 ◽  
Vol 4 (1) ◽  
pp. First
Author(s):  
Thắng Thanh Trần ◽  
Triều Phương Hoàng ◽  
Hương Thanh Trần
Keyword(s):  
Salicylic Acid ◽  
Abscisic Acid ◽  
Plant Growth ◽  
Total Sugar ◽  
Vase Life ◽  
Cut Flowers ◽  
Chrysanthemum Indicum ◽  
Flower Quality ◽  
Two Stages ◽  
Physiological And Biochemical

Chrysanthemum indicum cultivar Sakura is one of the daisy cultivars. It is beautiful, but the vase life of cutting flowers is very short. The decrease in flower quality during storage and transportation is a big problem in the flower export. In this study, the morphological, physiological, and biochemical changes during the vase life of cutting flowers were analyzed. The effects of plant growth regulators and sucrose at different concentrations on the vase life of cut flowers were investigated. The vase life of Sakura cutting flowers includes two stages: (1) the growing and blooming of flower, (2) senescence of cutting flowers. During the growing and blooming, the color of disk flowers changed from green to yellow, and the ray flowers continued to expand the dimension leading to an increase in the diameter of the head flower. The senescence of cutting flowers was initiated by the reduction of chlorophyll content in the leaf, which was located at the base. Then, the ray flowers were discolored. In the senescence stage, the respiration rate and the content of the abscisic acid of head flower increased continuously. In contrast, the water absorption, the content of starch, total sugar, salicylic acid, auxin, cytokinin, and gibberellin decreased strongly. The treatment of 10 g/L sucrose, 2 mg/L NAA, 5 mg/L BA, and 20 mg/L salicylic acid in 24 hours extended the vase life of Sakura cutting flowers and the diameter of the head flower.  

POSTHARVEST TREATMENTS TO EXTEND VASE LIFE OF SELECTED PROTEACEAE CUT FLOWERS

2003 ◽  
pp. 155-159 ◽  
Author(s):  
Iain Stephens ◽  
Deidre Holcroft ◽  
Gerard Jacobs
Keyword(s):  
Vase Life ◽  
Cut Flowers ◽  
Postharvest Treatments

scholarly journals Extending the vase life of Solidago canadensis cut flowers by using different chemical treatments

2003 ◽  
Vol 9 (2) ◽  
Author(s):  
F. A. S. Hassan ◽  
T. Tar ◽  
Zs. Dorogi
Keyword(s):  
Continuous Treatment ◽  
Vase Life ◽  
Solidago Canadensis ◽  
Cut Flowers ◽  
Fresh Weight ◽  
Silver Thiosulphate ◽  
Chemical Treatments ◽  
Percent Loss

In order to increase the vase life as well as quality of leaves of goldenrod (Solidago canadesis), the effect of 8-hydroxyquinoline sulphate (8-HQS), silver thiosulphate (STS) and l-methylcyclopropene (l-MCP) were investigated. 8-HQS was used as a continuous treatment at 400 ppm with or without sucrose at 50 g/l. The treatment of STS was used by putting the flower bases at 0.4 mM for 6h with or without sucrose at 50 g/l. l -MCP was used at 0.5 g/m3 for 6h dry or in water. Except the treatment of l -MCP in water, the chemical treatments, which were used, led to the increase vase of life of leaves as well as to the inflorescence of cut solidago spikes compared to the control. The best treatment in this concern was 8-HQS at 400 ppm without sucrose, which resulted in longest vase life of leaves as well as inflorescences and lowest percent loss of fresh weight of initial.

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