WATER UPTAKE AS A CRITERION FOR THE VASE-LIFE OF CUT FLOWERS

1981 ◽  
pp. 127-136 ◽  
Author(s):  
C.A. Buys ◽  
H.G. Cours
Keyword(s):  
Water Uptake ◽  
Vase Life ◽  
Cut Flowers

scholarly journals Identification of Xylem Occlusions Occurring in CutClematis(ClematisL., fam.RanunculaceaeJuss.) Stems during Their Vase Life

2012 ◽  
Vol 2012 ◽  
pp. 1-12 ◽  
Author(s):  
Agata Jedrzejuk ◽  
Julia Rochala ◽  
Jacek Zakrzewski ◽  
Julita Rabiza-Świder
Keyword(s):  
Water Uptake ◽  
Plant Material ◽  
Microbial Growth ◽  
Vascular System ◽  
Vase Life ◽  
Cut Flower ◽  
Cut Flowers ◽  
Bacterial Development ◽  
Growth Formation ◽  
New Treatments

During the vase life of cut stems obstruction of xylem vessels occurs due to microbial growth, formation of tyloses, deposition of materials in the lumen of xylem vessels and the presence of air emboli in the vascular system. Such obstructions may restrict water uptake and its transport towards upwards thus lowering their ornamental value and longevity of cut flowers.Clematisis a very attractive plant material which may be used as cut flower in floral compositions. Nothing is known about the histochemical or cytological nature of xylem blockages occurring in cut stems of this plant. This study shows that inclematis, tyloses are the main source of occlusions, although bacteria and some amorphic substances may also appear inside the vessels. A preservative composed of 200 mg dm−38-HQC (8-hydroxyquinolin citrate) and 2% sucrose arrested bacterial development and the growth of tyloses. This information can be helpful in the development of new treatments to improve keeping qualities of cutclematisstems.

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 Influence of electrical conductivity on water uptake and vase life of cut gladiolus stems

2015 ◽  
Vol 21 (2) ◽  
pp. 221
Author(s):  
Lucas Cavalcante Da Costa ◽  
Fernanda Ferreira De Araújo ◽  
Teresa Drummond Correia Mendes ◽  
Fernando Luiz Finger
Keyword(s):  
Electrical Conductivity ◽  
Water Uptake ◽  
Room Temperature ◽  
Tap Water ◽  
Vase Life ◽  
Distilled Water ◽  
Cut Flowers ◽  
Water Ph ◽  
Maximum Water ◽  
Standard Composition

<p>Several experiments reveal that distilled water varies among different laboratories and also does not have a standard composition. Water electrical conductivity (EC) of vase solution is one of the parameters that influence the water uptake by cut flowers. Therefore, the objective of this work was to evaluate the influence of electrical conductivity on water uptake and vase life in cut stems of gladiolus. The stems harvested and kept in distilled water (pH 6.6, EC &lt;0.01dS m-1) and tap water (pH 7.0, EC 0.75 dS m-1) at room temperature. Flowers kept in tap water showed lower fresh weight loss after the second day and higher water uptake during vase life. In a second set of experiments, we verified the limit EC saturation supported by the flower. For this, flowers were placed in individual test tubes containing four different solutions with varying ion concentrations. Solution 2 (EC 0.60 dS m-1) promoted increased vase life and allowed maximum water uptake by the flowers. The results show that the electrical conductivity of vase solution is a major parameter in experiments with vase life of cut gladiolus. The presence of ions in the vase solution increases the overall vase life and improves water uptake of flowers with favorable optimal EC between 0.60 to 0.87 dS m-1.</p>

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 Effect of 8-Hydroxyquinoline Citrate, Sucrose and Peroxidase Inhibitors on Vase Life of Lisianthus (EUSTOMA GRANDIFLORUM L.) Cut Flowers

2014 ◽  
Vol 22 (1) ◽  
pp. 41-47 ◽  
Author(s):  
Kamaladin Sharifzadeh ◽  
Moazzam Hassanpour Asil ◽  
Zeynab Roein ◽  
Muhammad Sharifzadeh
Keyword(s):  
Weight Loss ◽  
Superoxide Dismutase ◽  
Water Uptake ◽  
The Other ◽  
Life Extension ◽  
Vase Life ◽  
Anthocyanin Content ◽  
Cut Flowers ◽  
Fresh Weight ◽  
Eustoma Grandiflorum

AbstractCut lisianthus flowers have a short vase life, possibly due to blockage of xylem vessels. The effect of 8-hydroxyquinoline citrate, sucrose and peroxidase inhibitors on delaying senescence and extending vase life of cut lisianthus flowers was tested. The peroxidase inhibitors used in this experiment were catechol (CH) (5, 10, 15 mM) and p-phenylenediamine (PD) (5, 10, 15 mM). All vase solutions contained 200 mg-dm-3 8-hydroxyquinoline citrate (8-HQC) and 3% sucrose. 10 mM CH treatment was the most effective for vase life extension (13.3 days), increasing water uptake, and delaying fresh weight loss. The vase solution containing 10 mM CH significantly increased superoxide dismutase (SOD) and decreased peroxidase (POD) activities. Similarly, 10 mM PD increased anthocyanin content more than the other treat–ments. Protein degradation was significantly delayed by application of 5 mM PD. The malondialdehyde (MDA) accumulation was reduced when CH at 5 mM and PD in 5 and 15 mM were added to the vase solution. Results indicated that peroxidase inhibitors in combination with 8-HQC and sucrose increase vase life of lisianthus by improving water uptake and delaying fresh weight loss.

scholarly journals Occurrence of blockage in cut stems of Clematis L.

2013 ◽  
Vol 66 (1) ◽  
pp. 3-8 ◽  
Author(s):  
Agata Jędrzejuk ◽  
Julia Rochala ◽  
Julia Rochala
Keyword(s):  
Water Uptake ◽  
Vase Life ◽  
Cut Flower ◽  
Cut Flowers ◽  
New Information ◽  
Pas Reaction ◽  
Principal Source ◽  
Postharvest Treatments ◽  
Xylem Blockage

During vase life of cut flowers obstructions in stem xylem vessels develop. Such obstructions may restrict water uptake in stems and its transport towards flowers, thus lowering their ornamental value and longevity. <em>Clematis </em>is a very attractive plant which can be used as a cut flower in floral compositions. However, nothing is known about the histochemical or cytolo- gical nature of xylem blockages occurring in cut stems of this plant. Observations carried out on <em>Clematis </em>cv. 'Solidarność' proved that tyloses appeared as a principal source of xylem blockage in cut stems. The preservative composed of 200 mg × dm-3 8-HQC (8-hydroxyquinolin citrate) and 2% sucrose arre-sted development of xylem blockage, while the vessels in stems kept in water were filled with tyloses or an amorphic substance. PAS reaction proved that polysaccharides were present in the xylem occlusions, whereas no homogalacturonans were immunolocalized in tyloses using JIM 5 and JIM 7 antibodies. The present study provides new information on the origin of xylem occlusions in clematis and their development in two different vase solutions. Such information can be useful to develop pro- per postharvest treatments aiming to improve keeping qualities of this new cut flower.

scholarly journals Comparative Analysis of the Quality of Domestically Distributed Cut Phalaenopsis Flowers Based on the Season and Place of Origin

Horticulturae ◽  
2021 ◽  
Vol 7 (10) ◽  
pp. 382
Author(s):  
Hyun Kyung Kim ◽  
Ae Kyung Lee
Keyword(s):  
Water Uptake ◽  
Tap Water ◽  
Sugar Content ◽  
Water Levels ◽  
Vase Life ◽  
Cut Flowers ◽  
Flower Diameter ◽  
Treatment Agent ◽  
Place Of Origin ◽  
Flower Quality

This study compared and analyzed the qualities of cut Phalaenopsis “V3” flowers based on the place of origin and season. An investigation of the senescence type showed that flowers originating from Korea had a higher rate of aging than those from China across all three seasons. Consequently, the vase life was also 3–5 days longer for Chinese flowers than those for Korean flowers, regardless of the season. Furthermore, the vase life was the longest in autumn, followed by spring and summer, with statistically significant differences. With respect to flower diameter, Chinese cut phalaenopsis flowers were relatively larger than the Korean ones on day 1 of the experiment. As the senescence process of wilting was initiated earlier in Korean flowers with a shorter vase life, they showed higher reductions in flower diameters as well. The fresh weight, water uptake, and water balance were lower for Korean flowers than those for Chinese flowers starting on day 5 of the experiment across all three seasons. Korean cut phalaenopsis flowers experienced difficulties in maintaining water levels following their water uptake on day 1, which may have affected their vase life. Ethylene production showed a sharp increase on day 7 in Chinese cut flowers and day 5 in Korean cut flowers, with high amounts typically observed in spring, which coincided with the results of water loss. Hunter values L, a, and b and changes petal color ⊿E significantly differed not by place of origin but by season. Additionally, the sugar content of the solution inside the water tubes used when selling cut phalaenopsis flowers was investigated. Chinese flowers are subjected to pretreatment and posttreatment inside the water tube before being exported, while Korean flowers are treated with tap water. The Chinese flowers contained approximately seven times more sugar content compared to Korean flowers. This suggests that the treatment solution components, including sugar and other ingredients, of the Chinese cut flowers had a positive effect on water uptake and lowered the sensitivity to ethylene, which seemed to have an effect on the long vase life and quality. If Korean cut flowers are also distributed using a treatment agent, it is expected that the vase life will be improved and the satisfaction of consumers will be increased. However, since there are several possibilities that can affect post-harvest quality, it seems that additional experiments are needed. Moreover, as flower quality decreases in summer compared to those in spring or autumn, it will be necessary to reduce the differences in quality between seasons.

scholarly journals Influence of Seasons and Varieties on Vase Life of Gerbera (Gerbera jamesonii Hook.) Cut Flower

1970 ◽  
Vol 11 ◽  
pp. 41-46 ◽  
Author(s):  
Anil Kumar Acharya ◽  
Dilli Ram Baral ◽  
Durga Mani Gautam ◽  
Umed Kumar Pun
Keyword(s):  
Relative Humidity ◽  
Water Uptake ◽  
Laboratory Experiments ◽  
Vase Life ◽  
Gerbera Jamesonii ◽  
Cut Flower ◽  
Total Water ◽  
Cut Flowers ◽  
Growing Seasons ◽  
Stalk Length

Postharvest studies were carried out in three varieties of (Gerbera jamesonii Hook.) cvs. Primrose, Malibu and Sunway to find out the effect of growing seasons (autumn, winter and spring) on the vase life of cut flowers during September 2009 to March 2010. Laboratory experiments were carried out in controlled room having 18±2°C temperature, 68±2% relative humidity and 100 lux light. The study revealed that the longest vase life was noticed in Sunway, followed by Primrose and Malibu. Regarding the season of production, longest vase life (18.37 days) was found in the flowers harvested in winter, followed by spring (14.8 days) and autumn (9.57 days). The interaction effect of season and variety showed that longest vase life (23.2 days) was found in Sunway harvested in winter whereas the shorter vase lives (5.7 and 7.8 days) were in Malibu and Primrose respectively harvested in autumn. Stalk length (57.88 cm) and floral diameter (10.78 cm) were highest in autumn while diameter of the stalk (0.64 cm) was the highest in spring. Sunway had the highest floral and stalk diameters, while the stalk length was longer in Malibu and Primrose. Total water uptake during the vase life was highest in flowers grown in winter (34.9 ml), followed by spring (34.7 ml) and autumn (26.14 ml). Key words: floral diameter; floriculture; postharvest; vase life; water uptake DOI: 10.3126/njst.v11i0.4088Nepal Journal of Science and Technology 11 (2010) 41-46

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