Effect of S-carvone on vase life parameters of selected cut flower and foliage species (original) (raw)
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EFFECT OF SOME BIOCIDES ON THE VASE LIFE OF CARNATION (DIANTHUS CARYOPHYLLUS L.) CUT FLOWERS
Amani Adam, 2021
The current study was carried out at Antoniades Research Branch, Ornamental Plants and Landscape Gardening Res. Dept., Hort. Res. Inst., ARC, Alexandria, Egypt, over two consecutive seasons of 2019 and 2020. The aim of this study was to compare the effects of silver nitrate (AgNO3) at (20, 30, and 40 mg l-1), 8hydroxyquinoline sulfate (8-HQS) at (50, 100, and 200 mg l-1), citric acid (CA) at (50, 100, and 150 mg l-1) and salicylic acid (SA) at (100, 150, and 200 mg l-1) as holding preservative solutions for reducing bacterial decay and prolonging the vase life on cut carnation (Dianthus caryophyllus L.) flowers. The following records were evaluated at the conclusion of the experiment: vase life (days), which was calculated as the number of days before the flowers started to wilt, loss of flower fresh weight percentage (LFFW percent), final water uptake (g), flower fresh weight/flower dry weight ratio (FWR), relative fresh weight, vase solution uptake rate, and several chemical component tests. The results showed that the highest significant improvement in most measurements were obtained when treated with silver nitrate AgNO3 at a concentration of 30 mg l-1 including improved vase life, final water uptake, flower fresh weight/flower dry weight ratio, chlorophyll a & b, carotene content, and sugars content. It also reduced the number of bacterial colonies in the vase water. The treatment with 8-hydroquinoline sulfate at 200 mg l-1 was the closest to that treatment in most of the studied characteristics.
Treatment with Salicylic Acid extends the Vase Life of Important Commercial Cut Flowers
Advanced Crop Science, 2013
A completely randomized design related study was conducted to evaluate the efficacy of salicylic acid (0 as control, 100, 200 and 300 ppm) to extend flower display life with 5 most important cut flowers across the world Alstroemeria peruviana, Gerbera jamesonii, Lilium asiaticum, Rosa hybrida and Polianthes tuberose with 3 replications and 3 samples for each replication. Applying salicylic acid extended the vase life of cut flowers significantly except in Rosa Hybrida. The highest vase life was observed for the treatments of 300 ppm. The addition of 300 ppm salicylic acid to clean distilled water extended the vase life of Alstroemeria peruviana, Gerbera jamesonii, Lilium asiaticum, Polianthes tuberose and Rosa hybrida by 30-55 (%) relative to control. Salicylic acid treatments increased relative water content, petal water content and initial fresh weight in cut flowers, over control. The beneficial effects of salicylic acid are associated with the plant regulating and anti-stress properties of salicylic acid. Results of this experiment provide support for wider testing and use of this natural, cheap, safe and biodegradable compound, as a vase solution additive for extending the postharvest longevity of cut flower species susceptible to vascular blockage of bacteria and ethylene which are used widely in the world.
The effects on the vase life of cut Rosa cultivar ‘Sonia’ of bacteria added to the vase water
Scientia Horticulturae, 1989
A marked decrease in the vase life of cut Rosa cultivar 'Sonia' was observed when water-washed viable or heat-inactivated cells of either Bacillus subtilis, Enterobacter agglomerans, Pseudomonas fluorescens or P. putida were added to the vase water. The concentrations of viable or heatkilled bacterial cells influenced the vase life, but different bacterial strains exerted similar effects. High initial numbers of bacterial cells added to the vase water reduced the water conductivity, shortened the vase life and delayed the onset of flower-bud development. Similar numbers of viable cells added to the vase water (< 107->/0 ' cells ml-1) decreased the vase life of the roses more than did heat-inactivated cells. Water-conductivity measurement was a rapid, reproducible method of assessing the effects of bacteria after only 24 h of vase life. Vascular plugging caused by bacterial cells was not the sole cause of decreased water conductivity in the stem segments of the roses.
Effect of Different Treatments on Vase Life of Carnation 'Gioko
Acta Horticulturae, 2010
The effect of 1-MCP combined with Clorox and sucrose was studied. Cut flowers of Dianthus caryophyllus 'Gioko' were treated with 1-MCP 0.5 g m-3 for 6 hours at 20°C. Clorox in 2 ml L-1 and sucrose 10-50 g L-1 concentration was added. The treatments with 1-MCP increased the vase life with 5 days, and the sucrose in low concentrations improved the ornamental quality of the flowers. The SPAD values increased till the 6 th day. The 1-MCP treatments gave much better results compared to the control and Spring as well, and it seems to be possible to replace Spring with 1-MCP treatment.
Postharvest Biology and Technology, 1999
The relevance of deionized water as a control treatment in vase life experiments and the effects of major tap water components on cut flower water balance were investigated. Chrysanthemum (Dendranthema x grandiflorum Tzvelev cv. Cassa) was used in all experiments. Deionized water gave a sharp decrease in fresh weight of the cut flowers after 1-3 days. This decrease was absent in tap water. After 4 days in deionized water, hydraulic resistance in the basal part of the stem was 50 times the value of fresh cut flowers and seven times the value in tap water. Change in fresh weight during vase life in a solution containing combinations of CaCl 2 , NaHCO 3 and Cu 2 + at concentrations commonly present in tap water was similar to that in tap water. However, none of the minerals tested by themselves gave fresh weight results similar to those from using tap water. In the combined solution, hydraulic resistance in the basal part of the stem after 4 days was comparable to that in tap water. A minimal amount of Cu 2 + ( \0.30 mg·l − 1 ) enhanced fresh weight, probably by reducing bacterial growth in the cut open vessels. Calcium chloride ( \ 0.7 mM) delayed the increase in hydraulic resistance in the stem (not including the basal 3 cm) compared to deionized water, and at a high concentration (10.7 mM), substantially decreased the transpiration rate. Sodium bicarbonate (1.5 mM) neither affected hydraulic resistance nor transpiration rate, but positively influenced fresh weight change during vase life when combined with CuSO 4 and as compared to deionized water. Results strongly question the appropriateness of deionized water as a control solution in vase life experiments.
2021
Corresponding author: Amani I. Adam amaniadm@hotmail.com ABSTRACT: Natural preservatives such as herbal essential oils have the ability to extend the life of fresh-cut flower pots after harvest. The effect of clove oil, lavender oil and thyme oil, especially when combined with antimicrobial agents such as 8-hydroxyquinoline sulfate and silver nitrate, on vase life and post-harvest value of carnations picked after harvest, was studied. The results showed that the use of different preservative solutions consisting of clove, lavender and thyme oils mixed with silver nitrate and 8-hydroxyquinoline sulfate has a significant effect on the characteristics of cloves. The study confirmed that the effect between clove essential oil and silver nitrate was significant for most of the traits. The highest percentage of those studied traits were when carnation flowers were treated with 200 mg l-1 clove essential oil and 30 mg l-1 of silver nitrate.
Journal of Horticultural Science, 2017
Disturbance in water relations is the major causes of vase life reduction and senescence in cut flowers This problem is mainly due to microorganism proliferation in the vase solution which leads to vascular occlusion and reduction in solution uptake by cut flowers. Therefore a comprehensive study was conducted to evaluate the biocidal effect of nano silver particles (NSP) and compare it with some previously applied biocides. Roses (cv. Cherry Brandy) were treated in a completely randomized design with: colloid of NSP, citric acid, aluminum sulfate, hydroxyquinoline citrate (HQC), calcium hypochlorite, sodium hypochlorite (NaOCl), tap water, or sterilized distilled water as vase water or solution. Longest vase life was observed in flowers treated with nano silver particles, aluminum sulphate and citric acid, respectively. Nano silver particles, HQC and calcium hypochlorite were the most effective treatments in controlling microbial population followed by aluminum sulfate as the secon...