scholarly journals Effects of Some Chemicals on Vase Life of Some Cut Flowers I. Effect of 8-Hydroxyquinoline Sulfate, Silver Nitrate, Silver Nano Particles and Chitosan on Vase Life and Quality of Cut Rose Flowers (Rosa hybrida. Cv. “Black Magic”)

2017 ◽  
Vol 8 (1) ◽  
pp. 49-53
Author(s):  
H. Abdel-Kader ◽  
A. Hamza ◽  
T. Elbaz ◽  
S. Eissa
Keyword(s):  
Silver Nitrate ◽  
Rosa Hybrida ◽  
Nano Particles ◽  
Vase Life ◽  
Cut Flowers ◽  
Black Magic ◽  
Cut Rose

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 Ethylene Exposure Exacerbates Botrytis Damage in Cut Roses1

2020 ◽  
Vol 38 (3) ◽  
pp. 80-90
Author(s):  
Ben A. Bergmann ◽  
John M. Dole
Keyword(s):  
Botrytis Cinerea ◽  
Strong Influence ◽  
Negative Impact ◽  
Gray Mold ◽  
Rosa Hybrida ◽  
Major Influence ◽  
Vase Life ◽  
Cut Flowers ◽  
Significant Negative Impact ◽  
Cut Rose

Abstract Separate experiments showed that current cut rose (Rosa × hybrida) cultivars vary considerably in Botrytis (Botrytis cinerea) susceptibility and ethylene (ET) sensitivity. There was no pattern when considering these two traits together for the 26 cultivars used, and neither trait appeared predictive of the other. Four cultivars were identified that included one each that is Botrytis susceptible/ET sensitive, Botrytis non-susceptible/ET sensitive, Botrytis susceptible/ET insensitive, and Botrytis non-susceptible/ET insensitive. Exposing these cultivars to ET often resulted in reduced vase life and more pronounced negative Botrytis responses (flower Botrytis damage, leaf Botrytis incidence, and frequency of termination due to Botrytis). This was true for ET sensitive and insensitive cultivars, Botrytis susceptible and non-susceptible cultivars, Botrytis inoculated and non-inoculated stems, and stems exposed to ET either before or after Botrytis inoculation and incubation. Thus, even if ET is not thought to have a major influence on a given cut rose cultivar in terms of classic negative ET responses (leaf drop, petal wilt, altered opening rate), ET exposure could have a significant negative impact on that cultivar by exacerbating Botrytis damage. Shipping temperatures and methods can have a strong influence on Botrytis damage, with pre-cooling of shipping boxes before cold storage/transport being beneficial. Index words: Botrytis blight, Botrytis cinerea, cut flowers, floriculture, gray mold, Rosa L. hybrids. Species used in this study: Rose (Rosa × hybrida) focal cultivars ‘Cuenca', ‘Daphnee', ‘Freedom', ‘Vendela'; Botrytis (Botrytis cinerea Pers. ex. Fr.). Chemicals used in this study: 1-methylcyclopropene (EthylBloc); ethylene; silver thiosulfate.

scholarly journals Effect of warm water on postharvest quality of cut rose (Rosa hybrida L.) flowers

2021 ◽  
Author(s):  
Davood Hashemabadi ◽  
Behzad Kaviani ◽  
Neda Nekouyar ◽  
Sama Ezzatpazhoh ◽  
Fatemeh Zaredoost
Keyword(s):  
Ornamental Plant ◽  
Rosa Hybrida ◽  
Warm Water ◽  
Postharvest Quality ◽  
Vase Life ◽  
Cut Flowers ◽  
Time Duration ◽  
Antioxidants Activity ◽  
The World

Abstract Rose is an ornamental plant, which constitutes one of the leading cut flowers in the world. The vase life of cut Rosa hybrida L. flowers is truly short. We examined the effect of various temperatures and different time duration factors on postharvest longevity, and some other physic-biochemical characteristics and antioxidants activity. Fresh cut Rosa hybrida L. flowers were treated by water with various temperatures (23º, 42º, 47º, and 52°C) and different time duration (5, 10, 15, and 20 min). Maximum vase life (7.52 days) was related to cut flowers that were treated with 52°C for 15 min. Minimum vase life (4.46 days) was observed in cut flowers that were treated with 42°C for 5 min. Treatment of cut flowers by water with the temperature of 52°C for 15 min induced the highest water absorption, petal’s anthocyanin, and leaf’s chlorophyll. The lowest ethylene production was also obtained in cut flowers treated with 52°C for 15 min. The use of warm water (52°C) for 15 min clearly extended the vase life and most traits pertaining to the vase life of cut Rosa hybrida L. flowers.

scholarly journals Improving the postproduction quality of Rose cut flowers

2004 ◽  
Vol 10 (4) ◽  
Author(s):  
F. Hassan ◽  
G. Schmidt ◽  
Zs. Dorogi
Keyword(s):  
Weight Loss ◽  
Chlorophyll Content ◽  
Chemical Treatment ◽  
Untreated Control ◽  
Production Quality ◽  
Rosa Hybrida ◽  
Vase Life ◽  
Cut Flowers ◽  
Silver Thiosulfate

In order to improve the post production quality of cut flowers of Rosa hybrida L. cv. Baroness, the effect of 8-hydroxyquinoline sulfate (8-HQS), silver thiosulfate (STS) and 1-methylcyclopropene ( I-MCP) were investigated. 8-HQS was used at 200 and 400 ppm with or without sucrose at 50 g LI. STS was used at 0.2, and 0.4 mM with or without sucrose at 50 g 1-I. l-MCP was used at 0.3, 0.5 and 0.7 g in-3 for 6h. The postproduction quality was improved as a result of using any chemical treatment comparing with untreated control. All the treatments of 8-HQS increased the vase life and minimized the percentage of weight loss of rose cut flowers compared to the control. The vase life was lorger when 8-HQS was combined with sucrose. The best treatment of 8-HQS was 400 ppm 8-HQS + 50 g 1-1 sucrose. STS treatment led to prolong the vase life and minimized the percentage of weight loss compared to the control. In addition, the effect was better when sucrose was added to STS. The treatment of STS at 0.4 mM + 50 g 1-1 sucrose was the best one. l -MCP treatment prolonged the vase life and lowered the percentage of weight loss at any level compared with untreated control. The best treatment in this concern was l -MCP at 0.5 g m-3 for 6h. The chlorophyll content (chl.a and chid)) of the leaves for the best treatment of each chemical was higher than the control. The treatment of STS at 0.4 mM + 50 g 1-1 sucrose gave the best results in this respect.

scholarly journals Mobility and Effects on Vase Life of Silver-containing Compounds in Cut Rose Flowers

HortScience ◽  
1999 ◽  
Vol 34 (1) ◽  
pp. 112-113 ◽  
Author(s):  
Kiyoshi Ohkawa ◽  
Youichi Kasahara ◽  
Jung-Nam Suh
Keyword(s):  
Silver Nitrate ◽  
Ribonucleic Acid ◽  
Bacterial Count ◽  
Rosa Hybrida ◽  
Silver Complex ◽  
Vase Life ◽  
Silver Thiosulfate ◽  
The Rose ◽  
Cut Surface ◽  
Cut Rose

The effects of silver-containing compounds used for prolonging the vase life of cut rose (Rosa hybrida L. `Asami Red') flowers were investigated. Silver nitrate and RNA-Ag+tris (a ribonucleic acid-silver complex and trishydroxymethylaminomethane) increased the vase life by 2.7 days and prevented bent neck of cut rose flowers compared with the control, whereas silver thiosulfate (STS) did not have a significant effect on longevity. Fresh weights of the rose stems pretreated with silver nitrate or RNA-Ag+tris were maintained along with longer vase life. There were higher amounts of Ag+ in the basal parts of the stem in these treatments compared with STS treatment. Bacterial count at the cut surface of stems treated with either silver nitrate or RNA-Ag+tris were lower than STS-treated or control stems. These results indicated that the primary effect of silver-containing compounds on `Asami Red' roses was antimicrobial.

scholarly journals IMPACT OF VARIOUS PRESERVATIVE SOLUTIONS ON VASE LIFE AND POST-HARVEST QUALITY OF CUT ROSES

2021 ◽  
Vol 37 (2) ◽  
pp. 71-78
Author(s):  
M. M. Aziz ◽  
S. Rashid ◽  
H. Kousar ◽  
R. Hussain ◽  
T. Saeed
Keyword(s):  
Silver Nitrate ◽  
Agricultural Research ◽  
Gold Medal ◽  
Vase Life ◽  
Cut Flowers ◽  
Sodium Thiosulphate ◽  
Post Harvest ◽  
Positive Effects ◽  
Preservative Solutions

Short vase life and post-harvest losses of cut flowers are major threat to floriculture industry. There are different preservative solutions that have been used to extend the post-harvest life of cut flowers. Hence, this study was executed at Floriculture laboratory of Ayub Agricultural Research Institute, Faisalabad during 2018-2020 to explore the efficacy of different preservative solutions on vase life and post-harvest quality of cut roses. There were 6 treatments viz, (T1= Distilled water, T2= Silver nitrate @ 100 ppm, T3= 8-Hydroxyquiroline citrate @ 100 ppm, T4= Sodium thiosulphate @100 ppm, T5= Sodium benzoate @100 ppm, T6= Sucrose @ 40 g/L) and two rose cultivars Kardinal and Gold medal. The experiment was arranged according to complete randomized design (CRD). Results designated that longest vase life (15 days), maximum soluble solid contents (9.3 Brix) and longest opening period (7.4 days) were acquired with silver nitrate @100 ppm solution while maximum flower size (6.77 cm2) and largest head diameter (8.6 cm) were achieved with sodium thiosulphate when applied at the rate of 100 ppm in cultivar Kardinal. All other chemical solutions also displayed positive effects. Keeping in view the remarkable impact of Silver nitrate on vase life and quality of cut roses, it is recommended for commercial growers and cut flower industry for preservation of cut roses for longer time.

Endogenous phytosulfokine α (PSKα) signaling delays petals senescence and prolongs vase life of cut rose flowers (Rosa hybrida cv. Angelina)

2021 ◽  
Vol 289 ◽  
pp. 110444
Author(s):  
Morteza Soleimani Aghdam ◽  
Amin Ebrahimi ◽  
Morteza Sheikh-Assadi ◽  
Roohangiz Naderi
Keyword(s):  
Rosa Hybrida ◽  
Vase Life ◽  
Cut Rose
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