Effects of pre-harvest factors and postharvest treatments on vase life of cut Acacia holosericea foliage stems

2013 ◽  
Author(s):  
Husni Mohd Rafdi
Keyword(s):  
Vase Life ◽  
Postharvest Treatments ◽  
Acacia Holosericea

POSTHARVEST TREATMENTS TO EXTEND VASE LIFE OF SELECTED PROTEACEAE CUT FLOWERS

2003 ◽  
pp. 155-159 ◽  
Author(s):  
Iain Stephens ◽  
Deidre Holcroft ◽  
Gerard Jacobs
Keyword(s):  
Vase Life ◽  
Cut Flowers ◽  
Postharvest Treatments

scholarly journals Determining Optimal Production Temperature, Transplant Stage, and Postharvest Protocols for Cut ‘Esprit’ Penstemon

2014 ◽  
Vol 24 (1) ◽  
pp. 71-75 ◽  
Author(s):  
Alicain S. Carlson ◽  
John M. Dole
Keyword(s):  
Cold Storage ◽  
Stem Length ◽  
Vase Life ◽  
Cut Flower ◽  
Greenhouse Production ◽  
Optimal Production ◽  
Postharvest Treatments ◽  
Production Temperature ◽  
Locally Grown

The effects of production temperature and transplant stage on stem length and caliper of cut stems and postharvest treatments on vase life of ‘Esprit’ penstemon (Penstemon grandiflorus) were examined. Plugs transplanted with eight to nine sets of true leaves had a longer stem length (64.3 cm) at harvest than those transplanted with two to three sets (57.7 cm) or five to six sets (60.8 cm). Time to flowering from transplant shortened as production temperature increased and when transplants had a greater number of true leaves. The addition of 2% or 4% sucrose with 7 ppm isothiazolinone as a vase solution resulted in the longest vase life (9.4 days) of all treatments compared with the control (4.5 days). A holding solution increased vase life to 7.0 days for Floralife holding solution and 5.9 days for Chrysal holding solution from the 4.3 days control, although hydrating solutions and preservative brand had no effect. The use of floral foam or antiethylene agents, ethylene exposure, or sucrose pulses also had no effect on vase life. Extended cold storage lengths either wet or dry for 2 or 3 weeks caused vase life to decrease to 2.0 days when compared with 5.6 days for the unstored control and 7.6 days for 1 week storage. ‘Esprit’ penstemon may be suitable for greenhouse production and has acceptable potential as a locally grown specialty cut flower.

scholarly journals Postharvest Handling of Cut Inflorescences of Ebenus cretica L.

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 636e-636
Author(s):  
J.C. Vlahos ◽  
M. Papadimitriou
Keyword(s):  
Water Potential ◽  
Vase Life ◽  
Cut Flower ◽  
Cut Flowers ◽  
Average Life ◽  
Preservative Solution ◽  
Postharvest Treatments ◽  
Postharvest Handling ◽  
Flower Quality

Ebenus cretica, Leguminosae, is a perennial bush endemic to the island of Crete, and produces attractive pinky red or purple flowers on 15-cm long racemes. To study the possibility of its use as a cut flower, cut inflorescences on 40-cm-long spikes were taken from plants grown outdoors in the farm of the Technological Educati Institute and used to determine the postharvest characteristics of Ebenus flowers. Without any postharvest treatments, the inflorescences held in water had an average life of about 7 days. A solution of 100 ppm 8-hydroxyquinone sulfate (HQS) in DI water, supplemented with 5% Ca(NO)3 increased vase life for 2 days and improved the water potential without affecting transpiration, whereas the addition of 2% or 5% sucrose decreased vase life by 1 or 2 days respectively. Pulsing with 0.2 mm STS for 2 h improved flower quality and vase life. Addition of 6-BAP (2 ppm) or GA3 (3 ppm) in the preservative solution did not affect flower quality or vase life compared to control. These results indicate that inflorescences of Ebenus cretica may be used as cut flowers; however, further research is required to determine their sensitivity to ethylene as well as its storage capabilities.

Characterisation of xylem conduits and their possible role in limiting the vase life of cut Acacia holosericea (Mimosaceae) foliage stems

2011 ◽  
Vol 38 (7) ◽  
pp. 614 ◽  
Author(s):  
Jilushi W. Damunupola ◽  
Kamani Ratnayake ◽  
Daryl C. Joyce ◽  
Donald E. Irving
Keyword(s):  
Water Flow ◽  
Vase Life ◽  
Cut Flowers ◽  
Test Species ◽  
Vessel Elements ◽  
Acacia Holosericea ◽  
Cut Foliage ◽  
Perforation Plates ◽  
Vestured Pits ◽  
Xylem Conduits

Early desiccation limits the vase life of Acacia cut flowers and foliage and may be attributable to poor hydraulic conductivity (Kh) of the cut stems. Acacia holosericea A.Cunn. ex G.Don has been adopted as the test species to investigate the postharvest water relations of the genus Acacia. To understand potential constraints on Kh, xylem conduits in cut A. holosericea stems were anatomically characterised by light and scanning and transmission electron microscopy. Vessels with simple perforation plates and tracheids were the principal water conducting cells. Bordered vestured intervessel pits were present in xylem vessel elements. The majority of conduits (89%) were short at 1–5 cm long. Only 2% were 15–16 cm in length. Mean xylem conduit diameter was 77 ± 0.9 µm and the diameter profile showed a normal distribution, with 29% of diameters in the range of 70–80 µm. Simple perforation plates can offer relatively low resistance to water flow. On the other hand, bordered vestured pits and short xylem conduits can confer comparatively high resistance to water flow. Overall, the presence of bordered vestured pits, together with a high proportion of short xylem conduits and high stomatal densities (232 ± 2 mm–2) on unifacial phyllodes, could contribute to early dehydration of A. holosericea cut foliage stems standing in vase water. Further research will relate these anatomical features with changes in Kh and transpiration of cut foliage stems.

A retrospective study of vase life determinants for cut Acacia holosericea foliage

2014 ◽  
Vol 180 ◽  
pp. 254-261 ◽  
Author(s):  
Husni Hayati Mohd. Rafdi ◽  
Daryl C. Joyce ◽  
Allan Lisle ◽  
Xiuhua Li ◽  
Donald E. Irving ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Vase Life ◽  
Acacia Holosericea

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 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.

Postharvest performance of cut ‘White Prosperity’ gladiolus spikes in response to nano- and other silver sources

2016 ◽  
Vol 96 (3) ◽  
pp. 511-516 ◽  
Author(s):  
Iftikhar Ahmad ◽  
Muhammad Saleem ◽  
John M. Dole
Keyword(s):  
Silver Nitrate ◽  
Tap Water ◽  
Vase Life ◽  
Silver Thiosulfate ◽  
Nano Silver ◽  
Postharvest Treatments ◽  
Silver Compounds

A study was conducted to compare the efficacy of nano-silver (NS), silver thiosulfate (STS), and silver nitrate as novel postharvest treatments, and evaluate the potential of nano-silver pulse (higher concentration) or vase (lower concentration) applications on postharvest performance of cut gladiolus (Gladiolus hybrids ‘White Prosperity’) spikes. Among silver compounds, spikes kept in silver nitrate had longest vase life. Spikes placed in STS at 10 or 20 mg L−1 had longer vase life than stems placed in NS, but similar to the stems placed in water. For NS pulse applications, spikes pulsed with 50 mg L−1 NS for 1 h at 20 ± 2 °C had 2.2 d longer vase life compared to the spikes in water. Pulsing of spikes for 1 h extended the vase life of cut gladiolus compared with 4 or 8 h pulsing durations. Spikes kept continuously in NS until end of vase life resulted in 4.2 d longer vase life at a lower concentration of 0.01 mg L−1. With increasing NS concentration to 10 mg L−1, vase life decreased to similar vase life as with tap water. The results demonstrated that NS at a 50 mg L−1 pulse for 1 h or 0.01 mg L−1 vase application can be used for extending vase life of cut gladiolus spikes.

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