Vase Life Of Flowers Research Articles

The vase life and quality of cut Gerbera jamesonii cv. 'Rosalin' flowers are affected by natural essential oils (in normal and nano forms) and nano-silver particles

Gerbera (Gerbera jamesonii, Asteraceae), is a perennial important commercial cut-flower crop. A major problem of gerbera cut flowers is short vase life mostly due to neck bending amongst other factors. This study aimed to screen the effects of the essential oils of thyme, clove and caraway in addition to nano-silver particles on vase life and on some parameters of gerbera cv. ‘Rosalin’ cut flowers. A factorial experiment was carried out with essential oils as first factor (in normal form at 25 and 50 mg/L) and Nano-silver as second factor (at 5 and 10 mg/L) in addition of distilled water as control. The measured traits were: vase solution uptake, relative fresh weight, flower vase life, neck bending, enzyme activity of polyphenol oxidase and catalase, anthocyanin pigment and phenols. Results indicated that essential oils have significantly affected vase life and vase solution uptake positively and reduced neck bending. The most effective treatments were caraway and clove oils in normal form at 50 mg/L and 25 mg/L, respectively. Similarly, a significant increase was observed on catalase. Whereas, nano-silver particles had an insignificant effect on neck bending. Still, a significant effect was detected on vase life and solution uptake.

Influence of nitrogen level and plant density on growth parameters and economic efficiency of sunflower cultured in Thua Thien Hue province

Sunflower (Helianthus annuus) cultivation is gaining popularity among Vietnamese farmers. Two separate experiments were conducted from January to April 2018 in a randomized complete block design with three replicates. Four levels of each factor were included in the experiments: 0, 20, 40, and 60 kg/ha for nitrogen and 11, 13, 16, and 20 plants/m2 for the density. The nitrogen fertilizer (up to 60 kg/ha) substantially affects the leaf area, diameters of stem plant, receptacle and flower head, and cut flower vase life. Low plant density works well on plant height, leaf number, width and length at the flowering stage, with the largest head diameter (17.2 cm) at the 13 plants/m2 density. Based on the results of both growth ability and economic efficiency, we suggested applying N at 60 kg/ha and planting at 16 plants/m2 density for growing F1 cut sunflowers in Thua Thien Hue province.

Preharvest Spraying of CaCl2 Alleviates the Scape Bending of Gerbera ‘Harmony’ Flowers by Strengthening the Pectin Crosslinks through Ca2+ Bonds

Scape bending is the primary cause shortening the vase life of cut gerbera flowers (Gerbera jamesonii ‘Harmony’). A previous study showed that this bending is closely related to the scape hardness, which is attributed to cell wall rigidity maintained by calcium ion bonds. In this experiment, the developing gerbera scape was sprayed with 0.5 and 1% calcium chloride to determine whether exogenous calcium directly influences scape hardness and whether it is related to pectin crosslinks. The calcium spray hardened the scape by 12% and efficiently reduced bending, thereby prolonging the vase life of the cut gerbera flowers. A 9% increase in calcium ions (Ca2+) was detected in the CaCl2-treated flowers compared to the control flowers. Additionally, the pectin content increased by up to 14% in the CaCl2-treated flowers as compared to that in the control. Pectins are the main polysaccharides of cell walls that impact plant tissue integrity and rigidity, with calcium ions acting as bonds for pectin crosslinking. Calcium treatment efficiently increased the content of total pectin in the cell walls and slowed the conversion of insoluble pectin (IP) to water-soluble pectin (WSP) during vase life. The results suggest that exogenously applied calcium increases the Ca2+ in cellular tissue and affects the pectin levels, which may aid in increasing the scape hardness by strengthening the calcium–pectin combination in cell walls.

Effect of Crop Geometry and Age of Seedlings on Its Growth, Flower Yield and Quality of Statice (Limonium sinuatum L.) under Prayagraj Agro Climatic Conditions

The objective of this study is to find out the most suitable treatments for plant growth and flower yield and quality of Limonium (Limonium sinuatum L.) under prayagraj agro climatic conditions. The study was carried out at Experimental field, Department of Horticulture, Naini Agriculture Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj (U.P.), India during Rabi season 2021-2022. The experiment was laid out in a Factorial randomized block design (FRBD) with 8 treatments which is replicated thrice. The first factor consists of four different levels age of seedlings i,e. 25,30,35,40 days old seedlings, second factor with two different spacings 45×60 cm and 30×45 cm. In Growth parameters, T7 (40 days seedlings + spacing of 45×60 cm) recorded significantly highest number of leaves (80.49), leaf length (32.20 cm), plant spread (45.65 cm2) Whereas, plant height was recorded significantly highest (84.80 cm) in T6 (35 days seedlings + spacing of 30×45 cm). In photosynthetic characteristics, the maximum leaf area (66.09 cm2), leaf weight (24.94 gm) and chlorophyll content (97.90 SPAD UNITS) was recorded in T7 (40 days seedlings + spacing 45×60 cm). In flowering parameters, the minimum number of days for flower stalk initiation (47.28 days) and flower duration (45.72 days) was recorded significantly in T7 (40 days seedlings + spacing of 45×60 cm) whereas, the length of flower stalk was recorded significantly highest (80.07) in T6 (35 days seedlings + spacing of 30×45 cm).The maximum yield with superior quality of flower stalks/plot was obtained significantly highest (80.22) in T6 (35 days seedlings + spacing of 30×45 cm). In post-harvest parameters the vase life of statice flower placed in water recorded maximum (8.69 days) in T6 (35 days seedlings + spacing 30x45 cm), whereas vase life of statice flower placed in 2% sucrose (14.35 days) and self-life (63.33 days) of flower was recorded maximum in T7 (40 days seedlings + spacing of 45x60 cm).

Combined Nano Silver, α-Aminoisobutyric Acid, and 1-Methylcyclopropene Treatment Delays the Senescence of Cut Roses with Different Ethylene Sensitivities

Flower senescence varies among cut roses (Rosa hybrida L.), and it is known that the postharvest life of ethylene-sensitive flowers is strongly related to the transcriptional accumulation of ethylene biosynthesis genes, whereas that of ethylene-insensitive flowers is shortened by water stress. These different responses of flowers to hormone and water stresses limit the action of preservatives in inhibiting the postharvest deterioration of cut rose flowers. This study was conducted to investigate the effects of the combined application of antibacterial agents and ethylene biosynthesis and binding inhibitors on the postharvest life and quality of the cut rose cultivars ‘Matador’ (ethylene-sensitive) and ‘Dolcetto’ (ethylene-insensitive). Cut flowers were treated with nano silver (NS), a combination of NS and α-aminoisobutyric acid (NS+A), or a combination of NS+A and 1-methylcyclopropene (NS+AM), and they were subsequently exposed to ethylene for 24 h. Treatment effectiveness was compared with that of control (CON) flowers, which were kept in distilled water and exposed only to ethylene. The results showed that all treatments significantly improved the postharvest quality and vase life of both rose cultivars. However, NS+AM most markedly delayed senescence and prolonged the vase life of cut flowers by 217% in ‘Matador’ and 168.4% in ‘Dolcetto’, compared with those of CON flowers. NS+AM also effectively increased the flower diameter and maintenance time of positive water balance and initial fresh weight by enhancing solution absorption as well as suppressing bacterial growth at the cut stem ends of the cut roses. Furthermore, NS+AM greatly suppressed the ethylene-inducible increase of ethylene biosynthesis genes and the reduction of ethylene receptor genes in petals, which resulted in a reduced flower response to exogenous ethylene in both rose cultivars. These findings show that NS+AM effectively delays flower senescence in both ethylene sensitive and insensitive cultivars by synergistically preventing ethylene response and water stress in cut flowers.

Effect of Lysosomes on Extending Vase Life of Cut Flowers.

In this study, we were investigated the effect of lysosomal extracts (named as lysosomal enzymes) on extending the vase life of cut flowers. The results confirmed that senescence of cut freesia treated with lysosomal enzymes delayed. Also, the results for cut roses and lilies showed a similar pattern. In the case of them the fresh weight was lower than that of the control group, but time the ornamental value was retained increased by about 2days. The reasons have explained as results by the change including stomata, accumulation of microbial population, and soluble carbohydrate contents. In conclusion, pretreatment with lysosomal enzymes has enhanced vase life and ornamental value of cut flowers. It has an important significance in improving the marketability of cut flowers in the flower industry. Therefore, lysosomal enzymes have the potential to be used sufficiently as eco-friendly and effective materials for pretreatment agents in the cut flower industry.

Extending the vase life of cut chrysanthemum flowers with herbal extracts

ISHS IX International Scientific and Practical Conference on Biotechnology as an Instrument for Plant Biodiversity Conservation (physiological, biochemical, embryological, genetic and legal aspects) Extending the vase life of cut chrysanthemum flowers with herbal extracts

Effect of salicylic and ascorbic acids on post-harvest vase life of Chrysanthemum cut flowers

Flower vase life is one important aspect in determining the flower quality in the cut flower chrysanthemum. The use of ascorbic or salicylic acid as preservative solutions was expected to have an impact on the prolonged duration of the cut flower freshness. The research was designed in two parallel experiments. The first dealt with salicylic acid, while the second focused on ascorbic acid. Both experiments were arranged in a factorial completely blocked randomised design. Two chrysanthemum varieties, i.e., ‘Reagent Sunny’ and ‘Yellow <br />Fiji’ were the first factor and concentrations of the salicylic or ascorbic acids, i.e., 0, 100, 200 and 300 ppm became the second factor. The results showed the termination of the flower freshness was recognised by the wilted leaves and petals, and petal colour changes. In all the treatments, the colour change of the wilted petals of each variety fell in the same colour, indicating the direction of the colour changes was not affected by the ascorbic/salicylic acids. Ascorbic acid at 200 ppm induced longer flower longevity than the control with delayed chlorophyll degradation in both tested cultivars. In the salicylic acid applications, a 100-ppm solution induced longer flower freshness only in the ‘Reagent Sunny’. In higher concentrations, salicylic acid solutions induced shorter flower freshness with faster chlorophyll degradation and basal tissue damage in the ‘Yellow Fiji’.

Nitric oxide signaling pathway in medicinal plants

Nitrogen monoxide or nitric oxide is a biological active growth regulator that a wide range of studies have recently shown that it acts as a growth regulator (signaling molecule) in plants. As soon as Nitric Oxide (NO) known as a new biological agent in plants and animals, biological branches of sciences like medicine, biochemistry, physiology and genetics have paid special attention to it. NO is a very reactive gas shape free radical which has attracted much attention during recent years. This compound is produced by the plant and it has increased the shelf life of some fruits, vegetables and cut flowers in low concentrations. NO is mostly synthesized from enzymatic and non-enzymatic pathways whose enzymatic biosynthesis pathway is done by reductase nitrate biosynthesis pathway through the cytosol, also it is known as an important and very reactive signaling molecule with short life which is produced by a group of enzymes known as synthesize NO which transforms L-arginine to L-citrulline and NO. It has been revealed that plants use NO as a growth regulator which regulates and modifies antimicrobial defensive responses. Recently, it has been approved that this material plays a vital role in regulating the normal physiological activities of plants such as pores closing, aging, increasing the vase life of cut flowers after harvesting, respiration and photosynthesis, antioxidant enzymes activities and growth.

Estimation of metabolic activity of cut flowers during a study to enhance vase life of Cymbidium hybrid cut-flowers

In this study, the metabolic activity (MA) of orchid cut flowers was estimated by the modified alkali trap method for the first time, when an approach was made to increase the vase life of Cymbidium miniature hybrid and Cymbidium hybrid ‘H. C. Aurora’ cut flowers. Metabolic inhibitors like-systemic fungicides (Carbendazim and Metalaxyl) and darkness were used to increase the vase life of the cut flowers. Cut flowers kept with metabolic inhibitors had significantly higher relative fresh weight (RFW), rate of vase solution uptake (RVSU) and significantly lower MA compared to control, which consequently increased the vase life of the cut flowers. The vase life was maximum under Carbendazim + darkness treatment (C200 + D), followed by Carbendazim (C200)> Metalaxyl +Darkness (M200 + D)> Metalaxyl (M200)> Distilled water + Darkness (D)> Control, whereas the MA was maximum under the Control treatment, followed by D > M200 > M200 + D > C200 > C200 + D treatments for both the cut flowers. The C200 + D treatment increased the vase life by ∼31 and 27% for Cymbidium miniature hybrid and Cymbidium hybrid ‘H. C. Aurora’, respectively, compared to the control treatment. It can be inferred that Carbendazim+ darkness treatment can increase the vase life of orchid cut flowers and the modified alkali trap method would be effective for estimation of MA of the cut flowers.

Perennial Flax: A Potential Cut Flower Crop

The genus Linum L. contains ≈200 primarily blue-flowered species, including several ornamentals, yet no reports exist regarding the cut flower potential of this genus. The objective of this study was to evaluate the cut flower potential of perennial flax cultivars (L. perenne L. ‘Blue Flax’ and ‘Sapphire’; Expt. 1, 2018) and accessions (L. austriacum L., L. lewisii Pursh., and L. perenne; Expt. 2, 2019), and record traits that will enable breeding and selection for improved cut flower performance. The mean vase life across both cultivars in Expt. 1 was 9.2 days. In Expt. 2, L. perenne had the longest average vase life (9.3 days), followed by L. austriacum (9.1 days) and L. lewisii (8.3 days). The floral preservative (Floralife 300) significantly increased vase life by an average of 1.7 days in Expt. 1, and 1.6 days in Expt. 2, and resulted in a significantly greater number of flowers (≈2x) in both experiments. Significant variation was observed among genotypes for most traits, including vase life (6.2 to 11.3 days) and number of flowers (1.3 to 10.5), highlighting the opportunities for improving the potential of cut flower perennial flax through breeding.

Efficacy of 5-sulpho salicylic acid to improve vase life of gladiolus

Gladiolus is one of the most important bulbous cut flowers in domestic and international market. The commercial cultivation of gladiolus in India is increasing in terms of area, production and market. Due to rapid urbanization, change in life style, mall culture consumption of flowers has increased significantly. The longevity of cut flowers is one of the main challenges of florists today. Because, one the most important factors for consumers, apart from its external quality, is vase life of cut flower. The longevity of gladiolus cut flowers is very short. The typical vase life of individual spike is just 4 to 6 days depending upon cultivar. Therefore, the present study was carried out at the Division of Floriculture and Landscaping, Indian Agricultural Research Institute, New Delhi with an objective of identifying new eco friendly chemical for increasing the vase life of gladiolus cv. Gunjan. The experiment consisted of eight treatments (three chemicals in different combinations) and replicated thrice. From the present studies it was observed that 5 sulpho salicylic acid @ 1 mM SAA+ 4% Sucrose (T4) increased the vase life of cut flowers up to 9.11 days as compared to control (5 days) and the treatment T4 was statistically at par with T7 (400 ppm 8-HQC). So, it can be concluded that 5 sulpho salicylic acid is a very good alternative of 8HQC, as it is a cost-effective chemical, easily available and environmental friendly.

Effect of Plant Growth Regulators on Growth and Quality Flower Production of Chrysanthemum (Chrysanthemum Indicum L.)

A field study was conceded to assess the effect of plant growth regulators on growth and quality flower production of chrysanthemum at Horticulture Research Centre (HRC), Gazipur, Bangladesh. The experiment was laid out in Randomized Complete Block Design (RCBD) with ten (10) treatments and three replications. The treatments of plant growth regulators concentration were T1-50 ppm GA3, T2-100 ppm GA3, T3-150 ppm GA3, T4-400 ppm CCC, T5-600 ppm CCC, T6-800 ppm CCC, T7-250 ppm MH, T8-500 ppm MH, T9-750 ppm MH and, T10-Control. The maximum spreading of plant (27.0 cm) was observed when plants were treated with GA3 @ 150 ppm where the minimum plant spread (16.8 cm) was recorded in plants treated with CCC @ 800 ppm. The higher number of suckers (33) per pot was produced when pots were treated with GA3 @ 150 ppm whereas, application of CCC at three different concentrations produced lower number of suckers. The highest number of flower (40) was recorded with 150 ppm GA3, where minimum number of flowers (25) per pot in 800 ppm CCC. The plants sprayed with 50 ppm GA3 took 48 days to flower initiation, whereas, it took 70 days with 750 ppm MH. the highest plants recorded (7.40 cm) with 800 ppm CCC, whereas, lowest size (6.50 cm) was obtained with the application of 500 ppm MH. The maximum vase life of flowers was recorded for the treatment 800 ppm CCC (15 days), which was at par with 13 days vase life obtained by spraying 600 ppm CCC. Therefore, it is concluded that the GA3 acted as growth promoter and the CCC acted as growth retardants on yield and quality of chrysanthemum.

Extending vase life of carnation flowers by postharvest nano silver, humic acid and Aloe Vera gel treatments

Abstract Standard Carnation flowers (Dianthus caryophyllus cv. Dover) were harvested at the paint brush stage in the early morning, pre-cooled at 4° C for 6-h then moved under dry conditions to the laboratory. Flowers were weighted and treated for 24-h with silver nanoparticles (AgNPs) at 0, 5 or 10 ppm in plastic buckets. After pulsing treatments, cut flowers were transferred to 500 mL glass jars containing 300 mL of preservation solution treatments including, individually, humic acid at 200, 400 or 600 ppm and Aloe vera gel at 2.5%, 5.0% or 7.5% (w/v) till the end of the experiment (when flower color began to fade, petals began to roll). Distilled water was used for the control and to prepare the tested solutions. 2% sucrose was added to all treatments including the control. Addition of all preservatives to vase solutions significantly increased all the studied characteristics of cut flowers compared to control (distilled water, least values). Nanosilver treatments have the potential to be used as preservative solutions for improving postharvest vase life and quality of carnation flowers. An increment in vase life, relative fresh weight, vase solution uptake, flower diameter as well as total chlorophylls in leaves, total carbohydrates and total phenols in leaves and petals was observed, in addition to a decrease in bacterial counts in vase solution. Best results were obtained using 5 ppm AgNPs + 5.0% Aloe vera gel followed by 5 ppm AgNPs +7.5% Aloe vera gel solutions. Aloe vera gel, especially 5.0% level, showed better results than humic acid when used alone or combined with AgNPs. Nanosilver at 5 ppm recorded better results than 10 ppm when used as a single treatment.

Relationship of Different Pesticide Treatments on Rose Yield and Vase Life, under Polyhouse Condition

A field experiment was conducted at Hi-Tech Floriculture and Vegetable Project, College of Agriculture, Pune during 2013 to study the Effect of Different Pesticide Treatments On Rose,Vase life and number of flowers per plant under polyhouse condition.The overall results revealed that the treatments with Spinosad and Clothianidin were observed to be most effective against thrips by recording the lowest mean population of 2.20 and 2.68 thrips/three leaves, respectively and were on par with each other. The maximum vase life of flower 13.66 days was observed with pesticide treatment Spinosad 45% SC @ 0.3ml l -1 (T2). The number of flowers plant-1 differs significantly due to different pesticide treatments. The treatment with Spinosad 45% SC @ 0.3ml l -1 (T2) recorded highest no. of flowers (8.6) which was on par with Clothianidin (8.0).This was followed by the treatments The increasing trend was observed with decrease in mites, thrips incidence in different pesticide treatments T4, T5, T3, T6, T1, T7, T9, T10 and T8 as regards to the number of flowers plant-1

EFFECTS OF DIFFERENT TREATMENTS ON VASE LIFE OF GLADIOLUS CUT SPIKES: A REVIEW

Gladiolus is a commercial cut flower whose demand is 6000-8000 spikes/day and increasing day by day because of its majestic spikes. Long vase life is one of the important attributes of cut flowers but due to lack of proper aftermath effects and management flower does not remain consumable for long. This review focuses on different approaches to increase the vase life of the gladiolus cut flower. Cultivation practices, nutrients applied and maturity judgment during cultivation were found as responsible factors to determine the vase life. However, vase solutions containing different concentrations of 8-HQC, salicylic acid, Humic acid, silver nanoparticles, and sucrose (energy source) influence the vase life considerably. The number of Gamma rays and light also determines the vase life of gladiolus cut spikes by diminishing chromosomal aberration was seen higher responsible for improving flower opening and vase life. Gladiolus is extremely sensitive to Fluoride, so it is better not to use water from contaminated sources during the preparation of the preservative solution.

Effect of different pesticide treatments on rose flower bud initiation, diameter, stalk length, vase life and number of flowers per plant under polyhouse condition

The overall results revealed that the treatments with Spinosad and Clothianidin were most effective against thrips by recording the lowest mean population of 2.20 and 2.68 thrips/ three leaves, respectively and were on par with each other. Days required for first flower bud initiation, rose diameter, stalk length, vase life, number of flowers per plant varied significantly due to different pesticidal treatments under polyhouse conditions. The minimum days (34.2 days) required and earliest first flower bud initiation was observed in the treatment with Spinosad 45% SC @ 0.3 ml/l (T2) was significantly superior over the rest of treatments. The next best treatment was Clothianidin which required (34.9 days) for first flower bud initiation.

Phytofabricated Silver Nanoparticles (AgNPs) Applied in Vase Solution as a Novel Anti-Microbial Agent for Enhancing the Vase-life of Cut-Rose Flower

Plant extract has been exploited for biogenic synthesis of metallic nanoparticles. This is considered as the promising alternative routes of chemical and physical synthesis methods owing to their abundancy in nature and ecofriendly friendly synthesis protocol. Rose is the top-ranked and universally favorite cut flower. Poor post-harvest management deteriorates the quality and reduces the vase life. Microbial proliferation of the stem base in the vase solution is a concern for these cut flowers that shortens their vase-life. To overcome this problem, a smart solution i.e. phytofabricated silver nanoparticles have been shown to act as anti-microbial agent. In this study, leaf extracts of Camellia sinensis were exploited to fabricate biogenic silver nanoparticles which showing UV-peak absorption ranging from 412-500 nm. This biogenic silver nanoparticles were applied @ 0.01, 0.05 and 0.1mM and compared with a control (without AgNPs) and silver nitrate (AgNO3). Interestingly, AgNPs showed a strong antimicrobial activity in vase solution and cut roses extended their vase life up to 13 days compared to 8 days in control and 9 days in AgNO3. Statistical differences in flower opening, bacterial growth (CFUmL−1) in vase solutions, water uptake, relative fresh weight and vase life of cut roses were found among treatments. In vitro microbial analysis and microscopic investigation of vessels showed that the development of microorganisms was reduced by a high concentration of AgNPs (0.1mM) at the cut end of flower and improving water uptake that followed by extended flowers vase life. The unique phytofabricated AgNPs technology can serve as a promising preservative to increase the ornamental value of cut rose flowers. Taken all together, applied phytofabricated AgNPs in vase solution significantly enhance vase life of cut rose flowers over control.

Performance of different varieties of gerbera (Gerbera jamesonii Bolus) under protected cultivation in the Konkan region of Maharashtra.

An investigation was carried out to evaluate ten varieties of gerbera (Gerbera jamesonii Bolus) viz. Stanza, Ankur, Danna Ellen, Brilliance, Balance, Silvester, Goliath, Dune, Intense, and Rosalin under protected cultivation at the High-Tech nursery, College of Horticulture, Dapoli, Ratnagiri (M.S.) during 2020-21. Among the varieties study, there were highly significant variations observed for flowering parameters. The significantly minimum days to first flower bud emergence (84.76 days), maximum flower stalk length (64.15 cm), flower diameter (99.59 cm), length of ray floret (4.81 cm), number of flowers per plant (22.00), flowers yield per ha (7.92 lakhs), vase life (9.67 days) and longevity of flowers in the field (11.33 days) were recorded in variety Ankur. The maximum flower disc diameter (2.41 cm) was recorded in a variety of Dune. Flower stalk diameter (5.98 cm), number of petals per flower (85.02) were recorded maximum in a variety Goliath. The maximum width of ray floret (8.96 cm) was observed in variety Balance.

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

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.