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 Continuous Automatic Measurement of Water Uptake and Water Loss of Cut Flower Stems

HortScience ◽  
2011 ◽  
Vol 46 (3) ◽  
pp. 509-512 ◽  
Author(s):  
Peitao Lü ◽  
Xinmin Huang ◽  
Hongmei Li ◽  
Jiping Liu ◽  
Shenggen He ◽  
...  
Keyword(s):  
Water Uptake ◽  
Water Loss ◽  
Automatic Measurement ◽  
Vase Life ◽  
Cut Flower ◽  
Cut Flowers ◽  
Fresh Weight ◽  
High Data ◽  
Cut Rose ◽  
Loss Rates

In studying the postharvest water relations of cut flowers, researchers aim to determine rates of water uptake and water loss along with changes in fresh weight. An automatic apparatus was devised for continuous monitoring of these indices. The novel apparatus consists of two balances automatically recording mass at a relatively high data acquisition rate (min−1), a personal computer, two containers, and plastic tubing. The apparatus is accurate, labor-saving, and real-time. It enabled dynamic synchronous recording of water uptake as well as fresh weight of the cut flower stem, from which precise water uptake loss rates during vase life can be accurately determined. Rates of water uptake and water loss of individual cut rose (Rosa hybrida cv. Movie Star) stems were measured using the apparatus under alternating 12-h light and dark periods. Both water uptake and water loss rates fluctuated with the light to dark shift over 120 h of observation. Stem fresh weight increased rapidly over the first 40 h of vase period and decreased gradually thereafter. Cut lily (Lilium hybrida cv. Yellow Overlord) stems showed similar trends in water uptake and water loss rate to cut rose stems. The accuracy and sensitivity of the new apparatus was validated by comparison with manual weighing using a balance at 2-h intervals under alternating 12-h light and dark periods over 108 h. The apparatus described here constitutes a suitable method for direct measurement of water uptake and fresh weight, including capturing relatively rapid water balance responses to changes in the postharvest environment.

scholarly journals Genotypic Variation in the Postharvest Performance and Ethylene Sensitivity of Cut Rose Flowers

HortScience ◽  
2010 ◽  
Vol 45 (5) ◽  
pp. 790-796 ◽  
Author(s):  
Andrew J. Macnish ◽  
Ria T. Leonard ◽  
Ana Maria Borda ◽  
Terril A. Nell
Keyword(s):  
Natural Variation ◽  
No Reduction ◽  
Genotypic Variation ◽  
Ornamental Plants ◽  
Postharvest Quality ◽  
Vase Life ◽  
Cut Flowers ◽  
Flower Opening ◽  
Ethylene Sensitivity ◽  
Duration Of Protection

Natural variation in the postharvest quality and longevity of ornamental plants can often be related to differences in their response to ethylene. In the present study, we determined the postharvest performance and ethylene sensitivity of cut flowers from 38 cultivated Hybrid Tea rose genotypes. The vase life of the cultivars varied considerably from 4.5 to 18.8 days at 21 °C. There was also substantial variation in the degree of flower opening among genotypes. Exposure to 1 μL·L−1 ethylene for 24 h at 21 °C reduced the longevity of 27 cultivars by 0.8 to 8.4 days (18% to 47%) by accelerating petal wilting and abscission. Ethylene treatment also significantly reduced rates of flower opening in 17 sensitive cultivars and in six cultivars that showed no ethylene-related reduction in vase life. Five cultivars showed no reduction in vase life or flower opening in response to ethylene exposure. Pre-treating stems with 0.2 mm silver thiosulfate liquid or 0.9 μL·L−1 1-methylcyclopropene (1-MCP) gas for 16 h at 2 °C reduced the deleterious effects of ethylene. The release of 1-MCP from two sachets containing EthylBloc™ into individual shipping boxes also protected flowers against ethylene applied immediately after a 6-d commercial shipment. The duration of protection afforded by the 1-MCP sachet treatment was greatest when flowers were maintained at low temperature.

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 Effect of Ascorbic Acid, 8-Hydroxyquinoline Sulfate and Sucrose on the Longevity and Anthocyanin Content of Cut Gerbera Flowers

2013 ◽  
Vol 1 (1) ◽  
pp. 29-33 ◽  
Author(s):  
Samaneh Banaee ◽  
Ebrahim Hadavi ◽  
Pejman Moradi
Keyword(s):  
Ascorbic Acid ◽  
Dry Weight ◽  
Quality Score ◽  
Vase Life ◽  
Anthocyanin Content ◽  
Limited Extent ◽  
Cut Flowers ◽  
Fresh Weight ◽  
Preservative Solution ◽  
Flower Diameter

The effects of ascorbic acid (AsA), 8-hydroxyquinoline sulfate (8-HQS) and sucrose (Suc) on cut gerbera was studied. AsA (0, 100 and 150 mg L-1), 8-HQS (0 and 200 mg L-1) and Suc (0 and 30 g L-1) and their combinations were tested as preservative mixtures. Vase life was determined as the days until the flowers started to wilt and then dry weight and anthocyanin content were measured. The following records were analyzed at the 7th day of experiment: mean uptake of preservative solution, dry weight, flower diameter and quality score of cut flowers. The only measure improved by ascorbic acid was the flower diameter. The 8-HQS treatment increased vase life, dry weight, anthocyanin content, fresh weight, flower diameter and mean uptake of preservative solution. Sucrose decreased vase life, anthocyanin content and increased dry weight and flower diameter and mean uptake of preservative solution. The treatment containing the combination of 100 mg L-1 AsA + 200 mg L-1 8-HQS + 30 g L-1 sucrose resulted in the highest vase life but this was not significantly different from the controls. The highest anthocyanin content was noted in the 150 mg L-1 AsA treatment. The combination of 100 mg L-1 AsA + 200 mg L-1 8-HQS + 30 g L-1 Suc resulted the highest flower diameter. We conclude that AsA could improve the anthocyanin content and flower diameter of flowers and its addition to preservative mixtures based on 8-HQS could improve its effect to a limited extent.

scholarly journals Improving the Keeping Quality and Vase Life of Cut Alstroemeria Flowers by Pre and Post-harvest Salicylic Acid Treatments

2013 ◽  
Vol 5 (3) ◽  
pp. 364-370 ◽  
Author(s):  
Elnaz SOLEIMANY-FARD ◽  
Khodayar HEMMATI ◽  
Ahmad KHALIGHI
Keyword(s):  
Salicylic Acid ◽  
Water Balance ◽  
Chlorophyll Content ◽  
Water Loss ◽  
Vase Life ◽  
Total Chlorophyll ◽  
Cut Flowers ◽  
Fresh Weight ◽  
Total Chlorophyll Content ◽  
Keeping Quality

Keeping quality and length of vase life are important factors for evaluation of cut flowers quality, for both domestic and export markets. Studding the effect of pre- and post-harvest salicylic acid applications on keeping quality and vase life of cut alstroemeria flowers during vase period is the approach taken. Aqueous solutions of salicylic acid at 0.0 (with distilled water), 1, 2 and 3 mM were sprayed to run-off (approximately 500 mL per plant), about two weeks before flowers harvest. The cut flowers were harvested in the early morning and both of cut flowers treated (sprayed) and untreated were kept in vase solutions containing salicylic acid at 0.0 (with distilled water), 1, 2 and 3 mM. Sucrose at 4% was added to all treatments as a base solution. The changes in relative fresh weight, water uptake, water loss, water balance, total chlorophyll content and vase life were estimated during vase period. The results showed that the relative fresh weight, water uptake, water balance, total chlorophyll content and vase life decreased significantly while the water loss increased significantly during experiment for all treatments. A significant difference between salicylic acid and control treatments in all measured parameters is observed. During vase period, the salicylic acid treatments maintained significantly a more favourable relative fresh weight, water uptake, water balance, total chlorophyll content and supressed significantly water loss, as compared to control treatment. Also, the results showed that the using salicylic acid increased significantly the vase life cut alstroemeria flowers, over control. The highest values of measured parameters were found when plants were treated by pre + post-harvest application of salicylic acid at 3 mM. The result revealed that the quality attributes and vase life of cut alstroemeria flowers were improved by the use of salicylic acid treatment.

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.

The synergistic effect of maleic acid hydrazide (1.2-dihydro-3,6-pyridazinedione) and sucrose on vase life of cut roses

2002 ◽  
Vol 42 (5) ◽  
pp. 637
Author(s):  
K.-L. Huang ◽  
L.-J. Liao ◽  
R.-S. Shen ◽  
W.-S. Chen ◽  
Y.-H. Lin
Keyword(s):  
Synergistic Effect ◽  
Water Uptake ◽  
Water Loss ◽  
Maleic Acid ◽  
Ethylene Production ◽  
Acid Hydrazide ◽  
Vase Life ◽  
Cut Flowers ◽  
Postharvest Treatment ◽  
Cut Rose

Continuous postharvest treatment of cut rose flowers (Rosa hybrida L. cv. Diana) with maleic acid hydrazide (1.2-dihydro-3,6-pyridazinedione, MH) at 560.5 8-hydroxyquinoline sulfate (HQS) at 388.4 HQS, MH + HQS or sucrose + HQS treatments. The longevity of flowers in MH + sucrose in combination with HQS was extended for 18 days after vase treatments, whereas the longevity of cut flowers was only 4, 6 and 8 days for HQS, MH + HQS and sucrose + HQS, respectively. Cut roses treated with MH + sucrose + HQS in vase solution exhibited greater water uptake and less water loss than those in HQS. The concentrations of various sugars in petals were highest in the sucrose + HQS treatment, and MH + sucrose + HQS > MH + HQS > HQS. Ethylene production was significantly lower in sucrose + HQS or MH + sucrose + HQS treatments in comparison to MH + HQS, or HQS.

scholarly journals Positive Interaction Of Ethanol With Malic Acid In Postharvest Physiology Of Cut Spray Carnation ‘White Natila’

2014 ◽  
Vol 22 (2) ◽  
pp. 19-30 ◽  
Author(s):  
Fatemeh Begri ◽  
Ebrahim Hadavi ◽  
Amrollah Nabigol
Keyword(s):  
Weight Loss ◽  
Succinic Acid ◽  
Malic Acid ◽  
Dry Weight ◽  
Vase Life ◽  
Cut Flowers ◽  
Fresh Weight ◽  
Positive Interaction ◽  
Cell Membrane Stability ◽  
Preservative Solutions

AbstractIn this study, succinic acid (0, 1 and 2 mM), malic acid (0, 1 and 2 mM), ethanol (0, 2 and 4% v/v), and their mixtures were applied as preservative solutions for cut flowers of spread carnation cv. ‘White Natila’ and their effect on the longevity, the amount of absorbed solution, malondialdehyde and chlorophyll content, cell membrane stability, fresh, and dry weight and on a visual quality was determined. A similarity in the effect of malic acid and succinic acid on dry weight and fresh weight loss were found. Ethanol positively affected most of the studied traits, including the vase life and fresh weight loss. The preservative solution containing 1 mM of malic acid and 4% ethanol resulted in the longest average vase life - 11.1 days compared to 8.9 days in the control. Malic acid showed a significant positive synergism with ethanol that makes it reasonable to combine them in preservative solutions intended to extend the vase life of cut spray carnation.

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 EFFECT OF GROWTH REGULATORS AND PRESERVATIVE SOLUTION ON VASE LIFE AND WATER RELATION OF Gladiolus hybrida L. AFTER CUT FLOWERS

2019 ◽  
Vol 50 (Special) ◽  
Author(s):  
Al-Hasnawi & et al.
Keyword(s):  
Salicylic Acid ◽  
Water Balance ◽  
Dry Weight ◽  
Water Relation ◽  
Carbohydrate Content ◽  
Vase Life ◽  
Cut Flowers ◽  
Fresh Weight ◽  
Total Carotenoids ◽  
Preservative Solutions

This experiment was conducted to study the effect of five concentrations of growth regulator of (0, 25 GA3, 50 GA3, 100 Salicylic acid, 150 Salicylic acid) mg.L-1 and three types of preservative solutions on the vase life and water relations for Gladiolus hybrida L. after cut flower. The experiment was conducted as a factorial experiment (3×5) according to Randomized Complete Blocks Design, with three replicates. The results showed that GA3 (50 mg.L-1) significantly excelled in relative fresh weight of 155.33%, absorbed water 59.00 g /flower /day, the lost water 32.99 g /flower /day, water balance 26.01 g /flower /day, vase life 16.96 days, dry weight of flowers 22.89 g, and carbohydrate content in petals 22.34 %, and total carotenoids content in petals 7.84 mg/100 g dry weight. The second solution (5% sucrose + 200 mg.L-1 8.HQS + 200 mg.L-1citric acid) is significantly excelled in most studied traits. The interaction treatment that consisted of (50 mg.L-1 + second solution) is significantly excelled in traits of the relative fresh weight 168.47%, absorbed water 66.32 g/flower /day, the lost water 23.39 g/flower /day, water balance 42.93 g/flower /day, vase life 21.25 days, dry weight of flower 26.11 g, carbohydrate content in petals 20.78% and total carotenoids content in petals 10.06 mg/100g dry weight.

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