Effect of Holding Solutions on the Water Relations in Vase Life of Cut Carnation cv. Kiro (original) (raw)
Related papers
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.
The Bioscan, 2015
The present investigation was undertaken during the years 2006-07 and 2007-08 at Model Floriculture Centre, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar (Uttarakhand) with carnation genotypes. 16 carnation genotypes were planted in completely randomized block design under low cost polyhouse. These genotypes were also selected for post harvest analysis by using completely randomized block design with treatments as factorial combination of 16 cultivars and 3 levels of different holding solutions (STS, AgNo3 and distilled water). Ferada and Sunrise in distilled water had highest value of days taken to bud opening (5.12 days) whereas Keyar in STS solution (2.63 days) was recorded with minimum value. Flower diameter was found to be maximum (6.41 cm.) with Liberty which exhibited significantly higher diameter than all the genotypes in different holding solutions, while minimum (2.94 cm.) was recorded with Salaya which was at par with Dubesco Rubesco (3.11 cm.). Minimum Percent of flower weight loss was found with Ferato (13.26%) in STS solution which was at par with Tabour, Dark Randevous, Master, Ferada, Liberty, Tabour while maximum percent of weight loss was recorded in Parado Fansi (47.19%) which was at par with Sunrise (44.43%) in distilled water. Maximum amount of solution uptake was recorded with Tabour (36.56 ml) when kept in solution and minimum (11.07 ml) amount of solution was consumed by Sunrise when kept in distilled water. Maximum Vase life was recorded with Ferato(13.90 days) in STS solution which was at par with Tabour (13.64 days) while minimum (5.88 days) vase life was recorded with Cv. Lavender lace in distilled water, which was significantly lesser than all the genotypes in different holding solutions.
Current Trends in Natural Sciences, 2021
The cut flowers are living organs, with intense metabolic activity, subjected to a rapid aging process compared to the undetached flowers from the mother plant. Improving the life of cut flowers is one of the most important factors for customer satisfaction. The effect of silver thiosulphate (STS) and commercial mixtures was studied in carnation cut flowers and kept in randomized vases according to experimental factors. Three commercial mixtures were used (Chrysal, Flower Food, Fleur̛ Rose) and for thiosulphate four levels (0 or control, 0.03, 0.06 and 0.9 mM). The interaction of the two factors studied was insignificant for most traits, including wilting percentage and vase lifespan, which may involve the application of both substances alone is sufficient to improve post-harvest quality and is not necessary to use simultaneously in the preservative solution. The results also showed that following the interaction of the two factors, treatment with 0.06 mM silver thiosulphate can be ...
Effect of S-carvone on vase life parameters of selected cut flower and foliage species
Postharvest Biology and Technology, 2010
Insufficient water uptake by cut flowers and foliage species is often due to stem end occlusion and poor stem hydraulic conductance that involve bacterial growth and/or wound healing. S-carvone has putative antibacterial and anti-wound healing activity. S-carvone (0, 0.318 and 0.636 mM) was evaluated as a vase solution for Acacia holosericea (Mimosaceae), Baeckea frutescens (Myrtaceae), Chamelaucium uncinatum cv. 'Mullering Brook' (Myrtaceae) and Chrysanthemum sp. cv. 'Dark Splendid Reagan' (Asteraceae). S-carvone was also tested in vitro for activity against a vase solution bacterium. S-carvone at 0.318 and 0.636 mM showed significant (P < 0.05) positive effects on relative fresh weight, solution uptake and/or vase life for B. frutescens foliage and C. uncinatum flowering stems, but did not have positive effects for A. holosericea and Chrysanthemum sp. S-carvone did not suppress vase solution bacterial populations. Moreover, there was no in vitro activity at vase solution concentrations against the specific vase water bacterium, Bacillus cereus. For the two Myrtaceous genotypes, B. frutescens and C. uncinatum, S-carvone apparently extended vase life by inhibiting wound healing.
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.
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.
Postharvest Physiology of Cut Carnation Flowers
The most important challenge for postharvest researchers is to slow the processes controlling flower death to enable cut flowers with longest vase life and best quality to reach distant markets. Senescence of carnation is normally characterized by a climacteric-like pattern of ethylene production in which a surge in ethylene production is followed by a decline. Therefore, ethylene sensitivity is an important determinant in flower longevity of carnations. Nevertheless, postharvest losses in this flower result mainly from exposure to unfavourable conditions that accelerate ethylene production or render the flower more sensitive to ethylene, therefore careful postharvest handling is essential to maximise vase life and maintain flower quality. Pre-treatment of carnations with sugars and anti-ethylene agents such silver thiosulfate (STS) and 1-methylcyclopropene (1-MCP) result in a desirable increase in postharvest longevity. Floral preservatives that contain a proper amount of sucrose and different anti-ethylene products (inhibitors of ethylene biosynthesis or action) not only delay petal senescence and decrease tissues' sensitivity to ethylene, but also significantly improve qualitative or aesthetic characteristics of cut carnations. As cut flowers are often exposed to ethylene in the postharvest shipping and marketing environment, it would be useful to develop cultivars that are insensitive or less sensitive to ethylene. Carnations have now been genetically modified through the addition of a mutation of the ethylene binding site which makes them insensitive to ethylene. The breeding of cultivars with genetically superior vase life appears to be a very efficient approach for satisfying the consumer's quality expectations.
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.