scholarly journals The Effect of the Long-Term Cold Storage and Preservatives on Senescence of Cut Herbaceous Peony Flowers

Agronomy ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1631
Author(s):  
Ewa Skutnik ◽  
Julita Rabiza-Świder ◽  
Agata Jędrzejuk ◽  
Aleksandra Łukaszewska
Keyword(s):  
Cold Storage ◽  
Reducing Sugars ◽  
Vase Life ◽  
Flower Longevity ◽  
Cut Flowers ◽  
Long Distance ◽  
Long Distance Transport ◽  
Fold Reduction ◽  
Distance Transport

Recently peonies have become very popular cut flowers. As peony flowering period is short, long term cold storage could assure its prolonged supply and make long distance transport feasible. The effect of dry cold storage, of 8-hydroxyquinoline and nanosilver preservatives on the peony keeping qualities were tested on the most popular cultivar ‘Sarah Bernhardt’. The 12 week storage (0–1 °C) shortened flower longevity by 20%, to 8 days and no vascular blockages in the shoots were observed. However, the presence of callose, not considered as a blocking factor, was evident. The sucrose-containing preservatives with either 8-hydroxyquinoline or nanosilver did not extend the flower longevity but they increased flower diameters in both fresh and stored material. Generally, the soluble total and reducing sugars increased in senescing flowers in both non-stored and stored flowers, and they were lower after storage. The free proline increased ca. 20-times during cold storage and at the end of the vase life it remained generally higher in the stored than in fresh flowers. The level of hydrogen peroxide dropped after 12 weeks storage and its contents at the end of the vase life differed depending on the holding solution. Generally it was lower after storage. Storage increased the catalase activity which remained on higher levels in stored flowers from all holding solutions as compared to freshly cut flowers. A five-fold reduction in the peroxidase activity occurred during storage but its activities at the end of the vase life were similar in stored and non-stored flowers. The effects of nanosilver and 8-hydroxyquinoline were similar.

scholarly journals Cold Storage of Selected Members of the Proteaceae and Australian Native Cut Flowers

HortScience ◽  
1991 ◽  
Vol 26 (11) ◽  
pp. 1395-1397 ◽  
Author(s):  
Rod Jones ◽  
John Faragher
Keyword(s):  
Fungal Infection ◽  
Cold Storage ◽  
Vase Life ◽  
Cut Flower ◽  
Cut Flowers ◽  
Long Term Storage ◽  
Term Storage ◽  
Chamelaucium Uncinatum

Five members of the Proteaceae and 13 Australian native cut flower cultivars were stored for 35 days under standard conditions at 1C to assess their ability to withstand long-term storage and transport. Protea cynaroides L., Leucadendron `Silvan Red', Leucospermum `Firewheel', Thryptomene calycina (Lindl.) Stapf., Telopea speciosissima R. Br., and Verticordia grandtiflora Endl. retained a vase life of at least 7 days after 21 days of storage. Leucospermum cordifolium Salisb. ex Knight, Protea neriifoli R. Br., Chamelaucium uncinatum `Alba', C. uncinatum `Purple Pride', Verticordia monadelpha Turcz., Verticordia plumosa (Desf.) Druce, and Verticordia nitens (Lindl.) Schau. suffered a decline in vase life ranging from 31% to 100% after 14 to 21 days of storage. Species of Verticordia and Chamelaucium were particularly susceptible to fungal infection. Anigozanthos pulcherrimus Hook. and the Anigozanthos cultivars Ruby Delight, Bush Harmony, Bush Haze, and Gold Fever all showed a significant reduction in vase life after 14 days of storage compared with unstored controls.

scholarly journals Evaluation of Traveling Parameters in Parallel Long-Distance Public Transport

2019 ◽  
Vol 49 (1) ◽  
pp. 74-79
Author(s):  
András Lakatos ◽  
Péter Mándoki
Keyword(s):  
Public Transport ◽  
Current Problem ◽  
Transport Systems ◽  
Passenger Transport ◽  
Long Distance ◽  
Railway Systems ◽  
Long Distance Transport ◽  
Distance Transport ◽  
A Current

The ongoing competition between bus and railway systems in Hungarian long-distance public transport is a current problem. Long term sustainability and efficiency in passenger transport require a balanced transport policy. These subsectors need to complement each other, not compete. The parallel bus and railway links, which are present in most relations of Hungary, can result in a competition. This research analyze traveling parameters (distance and time) in case of parallel long-distance transport systems and evaluate them with a mathematical method for long term environmental and economic sustainability optimization. This investigation's hypothesis is to define difference segments of optimization gear to travel time and travel distance.

scholarly journals Influence of 1-Methylcyclopropene on the Antioxidants of ‘Red Cap’ Apples during Transportation and Shelf Life

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 341
Author(s):  
Tomasz Krupa ◽  
Ewa Zaraś-Januszkiewicz ◽  
Andrii Kistechok
Keyword(s):  
Shelf Life ◽  
Phenolic Acids ◽  
Cold Storage ◽  
Oxygen Storage ◽  
Modified Atmosphere ◽  
Low Oxygen ◽  
Long Distance ◽  
Long Distance Transport ◽  
Apple Peel ◽  
Distance Transport

The dietary properties of apples make them, along with the other fruits and vegetables, the basis of many slimming or pro-health diets. Availability of apples throughout the year is ensured by various storage technologies, including the use of ripening inhibitors. This experiment focused on the assessment of the effect of various variants of inhibition of apple ripening processes, i.e., 1-methylcyclopropene (1-MCP), ultra-low-oxygen storage (ULO) or modified atmosphere (MAP), in order to provide the consumer with apples with comparable high nutritional values. An important aim of the experiment was to determine the effect of the above-mentioned factors on changes in the content of polyphenols and antioxidant capacity in conditions of apple distribution at high temperatures, i.e., above 25 °C. The experiment consisted of several stages of fruit distribution: (I)—treatment of 1-MCP apples immediately after harvest, (II)—storage in ULO, (III)—simulated long-distance transport under normal atmosphere cold storage (NA) and Modified Atmosphere Packaging (MAP), (IV)—simulated rotation (15 days) under high-temperature conditions of 25 °C. Evaluation gave the basic characteristics of the fruits that characterize their health-promoting properties, i.e., total polyphenols (TPC), phenolic acids and flavonols, and antioxidant activity (AA). All indicators were assessed separately for apple peel and flesh. The experiment showed that the content of antioxidants in apple peel is from 230 to 370% higher than in the flesh, depending on the group of ingredients assessed. The peel of fruit treated with 1-MCP was distinguished by a higher content of phenolic acids and flavonols than the untreated fruit, especially after 20 weeks of stored in ULO. The effect of 1-MCP on AA in the peel of the fruit was moderate; however, apples untreated with 1-MCP were more likely to lose AA, especially when transported under normal cold storage conditions. The content of assessed compounds in the apple flesh was more stable than in the peel. The content of TPC and phenolic acids in apple flesh either decreased or remained almost unchanged after 15 days of shelf life. An increase in AA was observed in fruit flesh not stored in ULO, especially in apples treated with 1-MCP. After 10 and 20 weeks of storage in ULO, AA was not determined by experimental factors. The use of 1-MCP and the transport of apples in MAP can reduce the loss of phenolics after long-distance transport and distribution.

The Fine Structure of Phloem Cells

1985 ◽  
Vol 43 ◽  
pp. 632-635
Author(s):  
James Cronshaw
Keyword(s):  
Structural Studies ◽  
High Concentration ◽  
Long Distance ◽  
Phloem Tissue ◽  
Sieve Elements ◽  
Long Distance Transport ◽  
P Protein ◽  
Companion Cells ◽  
Electron Microscopical ◽  
Distance Transport

Long distance transport in plants takes place in phloem tissue which has characteristic cells, the sieve elements. At maturity these cells have sieve areas in their end walls with specialized perforations. They are associated with companion cells, parenchyma cells, and in some species, with transfer cells. The protoplast of the functioning sieve element contains a high concentration of sugar, and consequently a high hydrostatic pressure, which makes it extremely difficult to fix mature sieve elements for electron microscopical observation without the formation of surge artifacts. Despite many structural studies which have attempted to prevent surge artifacts, several features of mature sieve elements, such as the distribution of P-protein and the nature of the contents of the sieve area pores, remain controversial.

scholarly journals Comparative Analysis of Long-Distance Transportation with the Example of Sea and Rail Transport

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1689
Author(s):  
Tomasz Neumann
Keyword(s):  
Eastern China ◽  
Time Cost ◽  
Topsis Method ◽  
Long Distance ◽  
Long Distance Transport ◽  
The Subject ◽  
Transport Analysis ◽  
Multi Criteria Analysis ◽  
The Relationship ◽  
Distance Transport

The subject of the article is a comparative long-distance transport analysis based on the relationship between central and eastern China and Poland. It provides an overview of issues related to long-haul China–Poland. The technique for order of preference by similarity to ideal solution (TOPSIS) method was proposed in the multi-criteria analysis. This method was briefly discussed, and its choice was justified. Then, the criteria adopted in the analysis were presented, i.e., time, cost, maximum number of containers, and ecology index. Multi-criteria analysis was carried out for three cases: the transport of one loading unit, 82 loading units, and 200 loading units. The geopolitical and operational situation on the transport route for the analyzed modes of transport was discussed.

scholarly journals Selecting sorting centres to avoid long distance transport of weaned beef calves

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
T. Morel-Journel ◽  
E. Vergu ◽  
J.-B. Mercier ◽  
N. Bareille ◽  
P. Ezanno
Keyword(s):  
Negative Impact ◽  
Historical Record ◽  
Management Tool ◽  
Long Distance ◽  
Beef Calves ◽  
Long Distance Transport ◽  
And Performance ◽  
Distance Transport ◽  
French Beef ◽  
General Concern

AbstractThe transport of weaned calves from cow–calf producers to fatteners is a general concern for the young bull industry due to its documented negative impact on the welfare, health and performance of the animals. These transfers are often managed by intermediaries who transport weaned calves to sorting centres, where they are grouped into batches before being sent to fattening units. In this study, we present an algorithm to limiting these transfer distances by appropriately selecting the sorting centre through which they must go. We tested the effectiveness of this algorithm on historical data from a French beef producer organization managing 136,892 transfers using 13 sorting centres. The results show a decrease in the transfer distances compared to the historical record, especially for the calves travelling over long distances (− 76 km, i.e. 18% on average for the 33% longest transfers). Moreover, the distribution of calves between the sorting centres proposed by the algorithm reveals differences in their efficiency in minimizing transfer distances. In addition to its usefulness as a management tool for the daily transport of cattle, this algorithm provides prospects for improving the management of the sorting centres themselves.

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