RESPONSE OF CYCLAMEN PERSICUM CULTIVARS TO DIFFERENT GROWING AND HOLDING TEMPERATURES

1977 ◽  
Vol 57 (1) ◽  
pp. 93-100 ◽  
Author(s):  
J. M. MOLNAR ◽  
C. J. WILLIAMS
Keyword(s):  
Beneficial Effect ◽  
Shelf Life ◽  
Cyclamen Persicum ◽  
Flower Production ◽  
The Future ◽  
Higher Temperature ◽  
Pot Plant

The response of 14 cultivars of Cyclamen persicum (Mill.) to growing temperatures of 13 and 17 C, and four holding temperatures was evaluated. Results indicated that a growing temperature of 17 C significantly reduced the time from seeding to flowering of the cultivars studied. The effects of growing temperature on flower production and shelf life varied among the cultivars tested. The shelf life of the cvs. Rose of Aalsmeer, White Carmel Eye, Cattleya, Cardinal, Rose of Marienthal and Pearl of Zehlendorf was increased by growing them at the higher temperature. Shorter shelf life was associated with higher holding temperatures, but the amount by which shelf life was reduced varied among the cultivars. These findings are expected to have a beneficial effect on the future of cyclamen as a major pot plant.

scholarly journals Vaccines against the cold chain

2021 ◽  
Author(s):  
Aswin Doekhie ◽  
Nunuk Nurulita ◽  
Didik Setiawan ◽  
Asel Sartbaeva
Keyword(s):  
Shelf Life ◽  
Drug Target ◽  
Thermal Fluctuations ◽  
Cold Chain ◽  
Microbial Origin ◽  
Enhanced Resistance ◽  
The Future ◽  
Target Localisation ◽  
Direct Loss ◽  
Poor Infrastructure

Vaccines require continuous refrigeration to retain their efficacy as most vaccine components are derived from mammalian or microbial origin which are thermally unstable. Continuous refrigeration, known as the vaccine cold chain, comes at a cost that directly correlates to the standard of infrastructure that is available. A break in the cold chain caused by poor infrastructure can result in direct loss of functionality in these lifesaving medicines. Therefore, several approaches have been suggested to mitigate these losses. Not only will these benefit general healthcare via improved shelf-life but also enhanced resistance to thermal fluctuations and, in some cases, improved drug target localisation. In this minireview, we highlight trends in vaccine thermal stabilisation and look to the future for cold chain logistics.

scholarly journals INTERMITTENT WARMING DELAYS CHILLING INJURY IN OKRA

HortScience ◽  
1995 ◽  
Vol 30 (3) ◽  
pp. 434e-434
Author(s):  
P. Perkins-Veazie ◽  
J.K. Collins
Keyword(s):  
Weight Loss ◽  
Shelf Life ◽  
Chilling Injury ◽  
Warm Season ◽  
Reduce Weight Loss ◽  
Higher Temperature ◽  
Intermittent Warming ◽  
Olive Green

Okra develops chilling injury after 4 to 5 days at 2C or 8 days at 5C. Intermittent warming has prevented or delayed chilling injury in warm season crops. The purpose of this experiment was to find a way to prevent or delay chilling injury in okra. Field grown `Annie Oakley', `Blondy', and `Clemson Spineless' okra pods were held constantly at 2, 5, or 10C or placed at 2C or 5C for 2 days followed by 2 days at 10C (2-10 and 5-10, respectively) then returned to their original temperature. After 8 days of storage, all boxes were placed at 20C for 1 day; color was measured with a colorimeter, and pods were rated subjectively for chilling injury. `Annie Oakley' and `Clemson Spineless' pods held at 2C were olive-green to brown; okra held at 2-10 was green and still marketable. Less chilling injury occurred to pods held at 5 and 5-10 compared to those at 2C. Pods held at 2-10, 5, or 5-10 had injury after 8 to 10 days of storage compared to 5 days at 2C. Although chilling injury could not be completely prevented in okra by intermittent warming, shelf life could be lengthened by cooling pods at 2C for no more than 2 days to eliminate field heat and reduce weight loss, followed by storage at a higher temperature.

scholarly journals Effect of post-harvest treatment and storage temperature on fragrance of Jasmine (J. grandiflorum)

2018 ◽  
Vol 7 (8) ◽  
pp. 2391
Author(s):  
Mohana Sundari ◽  
Sivakumar T. ◽  
Krishna Surendar K. ◽  
Ganga M.
Keyword(s):  
Shelf Life ◽  
Chemical Treatment ◽  
Storage Temperature ◽  
Storage Condition ◽  
Flower Senescence ◽  
Nano Particle ◽  
Flower Production ◽  
Chemical Solutions ◽  
And Storage ◽  
Silver Nano Particle

The postharvest experiment was conducted to maximize the shelf life of Jasminum grandiflorum without losing its fragrance using with different chemical solution in department of Crop Physiology, Tamilnadu Agricultural University during 2017 - 2018. The demand for this species for oil extraction is more compared to other species. Among the Jasmine flower production major quantity of Jasmine flowers are utilized for isolating and manufacturing Jasmine oils. The experimental design followed for this study is FCRD. The chemical solutions viz., silver nano particle (20 ppm), Boric acid (4%), sucrose (4%), NAA (100 ppm), BA (500 ppm), α-AIB (20µM) are used as anti-senescence. After chemical treatment the flower buds packed in polypropylene bags (200 gauges) and stored in ambient and cold storage condition. The observation was made periodically up to flower senescence. Among the different chemical treatment silver nano-particle (20 ppm) having the significant effect on fragrance and shelf life over control.

scholarly journals Temperature and Light Influence Growth and Flower Production in Heliconia `Golden Torch'

HortScience ◽  
1996 ◽  
Vol 31 (2) ◽  
pp. 213-217 ◽  
Author(s):  
Jocelyn L. Catley ◽  
Ian R. Brooking
Keyword(s):  
Photon Flux ◽  
Flower Production ◽  
Developmental Factors ◽  
Air Temperatures ◽  
Shoot Production ◽  
Number Of Leaves ◽  
Higher Temperature ◽  
Flower Quality ◽  
Shoot Emergence

Flowering responses of Heliconia psittacorum L.f. × H. spathocircinata Aristeguieta `Golden Torch' to temperature and photosynthetic photon flux (PPF) were determined in controlled-environment conditions using a 2 × 2 factorial combination of temperature (32C day/20C night and 24C day/20C night) and PPF (475 and 710 μmol·m–2·s–1). Temperature had no significant effect on new shoot production, with an average of 9.3 shoots per plant being produced over the 248 days of treatment. More shoots, however, were produced at the higher PPF level (10.1 compared with 8.3 shoots). The proportion of shoots that initiated flowers (85%) was similar in all treatments. The duration from shoot until inflorescence emergence was significantly less at 32C day/20C night than at 24C day/20C night (140 and 146 days, respectively) and was unaffected by PPF. This duration also was significantly affected by the interacting effects of order of shoot appearance and the number of leaves subtending the inflorescence. The second shoots to emerge had the shortest duration from shoot emergence to inflorescence emergence. The number of leaves subtending the inflorescence increased at the higher temperature and decreased as shoot order increased but was unaffected by PPF. Temperature and PPF levels influenced total leaf area at flowering, with highest areas being achieved in the high temperature–low PPF combination. Acceptable flower quality with at least two, opened, well-formed, well-colored bracts was obtained in all treatments, although flower stems were taller and thicker at 32C day/20C night and these dimensions increased further with increasing order of shoot appearance. Stem diameters tended to be thinner at the lower PPF level. Overall, temperature was more dominant than light in influencing production and quality of flowers, but developmental factors associated with the order of shoot appearance also played a significant role. Flower production of `Golden Torch' should be feasible in temperature-controlled glasshouses in temperate regions where mean air temperatures can be maintained at ≈20C.

scholarly journals Ocena informacji zawartych na etykiecie pakowanej wieprzowiny

2016 ◽  
pp. 143-155
Author(s):  
Małgorzata Kosicka-Gębska ◽  
Jerzy Gębski ◽  
Katarzyna Kwiecińska
Keyword(s):  
Shelf Life ◽  
Sensory Evaluation ◽  
Total Population ◽  
Genetically Modified ◽  
European Parliament ◽  
Font Size ◽  
Quantitative Survey ◽  
The Future

Modern consumers are increasingly opting to buy pork in packaged form, for their own comfort and safety. Thorough knowledge of the product is derived from two sources. The first is the consumers’ own sensory evaluation of meat, mainly based on its color. The second is the label, on which manufacturer is obliged to provide basic, clear and understandable information about the product, according to the guidelines of the European Parliament of the Regulation (EU) No 1169/2011 of the October 25, 2011, applied in Poland since 13 December 2014. According to the results of quantitative survey conducted in 2012 on 1325 consumers of pork, for more than ½ of the total population the information on the label of packaged pork are barely visible (barely legible) and incomprehensible. Hence, consumers expect in the future concrete changes. First of all, posting in a visible place the information concerning the pork shelf life (29.1%), differentiating the font size (26.8%), and the information that the meat is free of any genetically modified components (19.4%).

scholarly journals Growth and Flowering Responses of Cyclamen persicum to Temperature and Photosynthetic Photon Flux

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 834B-834 ◽  
Author(s):  
Wook Oh* ◽  
In Hye Cheon ◽  
Ki Sun Kim
Keyword(s):  
Low Temperature ◽  
Leaf Size ◽  
Temperature Treatment ◽  
Photon Flux ◽  
Boron Deficiency ◽  
Fresh Weight ◽  
Cyclamen Persicum ◽  
Number Of Leaves ◽  
Higher Temperature ◽  
Increasing Temperature

This research was conducted to investigate the growth and flowering responses of Cyclamen persicum Mill. `Piccolo' to temperature and photosynthetic photon fluxes (PPF), and to obtain fundamental data for production of good quality pot plant. Cyclamen plants with 10 fully unfolded leaves were grown in growth chambers maintained at three day/night temperatures [20/10 (LT), 25/15 (MT), and 30/20 °C (HT)] combined with three PPF [250 (LF), 350 (MF), and 650 (HF) μmol·m-2·s-1] under 14 h-photoperiod. After 3 months, the higher the temperature was, the greater plant width was. It was the greatest under MT/MF and HT/MF. The number of leaves was greater with increasing temperature and PPF. Petiole length, leaf size, and fresh weight were higher with increase in temperature but decrease in PPF. Days to flowering were lower in MT/MF and MT/HF, but higher under LT regardless of PPF. The number of flowers was the highest under MT/MF and MT/HF, and higher under MF in each temperature treatment. Flowering period was longer in LT and MT compared with HT. Most leaves of plants grown under HT curled upward because of boron deficiency induced by higher temperature and lower humidity. Chlorophyll content was higher in medium and low temperature, except LT/HF. The lower side of leaf in low temperature was more reddish compared to that in higher temperature due to some pigments considered as anthocyanin. Photosynthesis was the highest in MT/MF, but low in MT/HF and LT/HF in accordance with the chlorophyll fluorescence (Fv/Fm) which was lower under the same environment. These results indicate that 25/15°C and 350 μmol·m-2·s-1 yielded the best pot cyclamen in this study.

scholarly journals PRESERVASI ARSIP KERTAS: EVALUASI PENGGUNAAN MAGNESIUM KARBONAT DAN METIL SELULOSA

2019 ◽  
Vol 14 (2) ◽  
pp. 91-106
Author(s):  
Yanah Suryanah ◽  
Sari Hasanah ◽  
Fitra Yeni
Keyword(s):  
Water Absorption ◽  
Shelf Life ◽  
Methyl Cellulose ◽  
Magnesium Carbonate ◽  
Ash Content ◽  
Internal Bonding ◽  
The Future ◽  
Before And After ◽  
Long Time ◽  
Archive Paper

Damage to archives stored for a long time threatens to reduce the shelf life of archives and their existence in the future. Efforts to conserve the archive are done to reduce the damage that occurs. This study aims to study the effect of the use of Magnesium Carbonate and the effect of the use of Methyl Cellulose in the improvement of the paper-based archives. Acidic archive papers are treated by using Magnesium Carbonate and Bookkeeper solution. The acidity of the paper is tested before and after treatment. In the restoration of the archive using Methyl Cellulose, Japanese tissue was applied using Methyl Cellulose glue on archive paper. The effect of the use of glue was observed from changes in the characteristics of the paper before and after treatment. The parameters tested include grammage, thickness, tear resistance, folding resistance, internal bonding, water absorption, ash content, and acidity. The result showed that Magnesium Carbonate can significantly increase pH but this chemical cannot be used in spraying. Other results show that the improvement of the archive using Methyl Cellulose can increase the strength of the paper but further research is needed to determine its effect after being stored for a long time.

The Shelf Life of Shock: Alice Tuan's Ajax (por nobody) in the Flesh

2013 ◽  
Vol 57 (3) ◽  
pp. 151-157
Author(s):  
Lawrence Switzky
Keyword(s):  
Shelf Life ◽  
The Future ◽  
Diminishing Returns ◽  
Full Production

The first full production of Alice Tuan's allegedly “unstageable” play raises questions about the future of brutalist theatre and the avantgarde legacy of transformative shock. The diminishing returns of offending the audience allow us to consider how, when, and why we might still feel (and be made to feel) unsettled by the reenactment of violence.

An improved granular formulation for a mycoherbicidal strain ofFusarium oxysporum

Weed Science ◽  
1999 ◽  
Vol 47 (4) ◽  
pp. 473-478 ◽  
Author(s):  
K. P. Hebbar ◽  
B. A. Bailey ◽  
S. M. Poch ◽  
J. A. Lewis ◽  
R. D. Lumsden
Keyword(s):  
Shelf Life ◽  
Room Temperature ◽  
Rice Flour ◽  
Storage Conditions ◽  
Vascular Wilt ◽  
Term Survival ◽  
Chlamydospore Formation ◽  
Oil Formulation ◽  
Higher Temperature

Modifications were investigated to improve shelf-life or long-term survival upon storage of an extrudedOryza sativaL. (rice) flour : gluten : clay: oil formulation (C7) of a mycoherbicide,Fusarium oxysporumSchlechtend: Fr. f. sp.erythroxylistrain EN4, that causes vascular wilt inErythroxylum cocavar.coca(coca). Fermentor-produced biomass, which contained abundant desiccation-resistant chlamydospores, was incorporated into various adaptations of C7 and stored at room temperature (22 to 25 C) under moderately high (50 to 60%) and low (0 to 5%) relative humidities (RHs). The effect of RH on shelf-life was not significant up to 4 mo of storage, while the presence of oil, added to improve its extrusion, reduced viability significantly. Addition ofGossypium hirsutumL. (cotton) embryo flour or complete elimination of oil from the formulation improved shelf-life from 3 mo to > 12 mo. Shelf-life was further improved by removing the binding agent gluten in the formulation and replacing it with autoclavedO. sativaflour. Ability of the formulations to produce secondary propagules, tested on 1% water agar, indicated that, while adding oil had no effect,G. hirsutumembryo flour increased desiccation-resistant chlamydospore counts but lowered macroconidial counts. Autoclaved rice flour (MR) significantly improved both macroconidial and microconidial counts without affecting chlamydospore counts. None of the formulations affected the total viable propagule counts. When compared with the original formulation (C7), the modification (MRRP7), with MR,G. hirsutumembryo flour, and without oil, was found to have improved shelf-life at higher temperature and RHs and enhanced potential for secondary chlamydospore formation. These characteristics are important for survival of the formulatedF. oxysporumunder less expensive storage conditions and, once applied, for survival in the soil.

Sign in / Sign up

Export Citation Format

Share Document