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Dissertations / Theses on the topic 'Fruit – Effect of light on'

Author: Grafiati

Published: 4 June 2021

Last updated: 12 February 2022

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1

Murray, Xavier John. "Physiological studies of the influence of light and water stress on harvest and postharvest quality of deciduous fruit." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/53001.

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Thesis (MSc)--Stellenbosch University, 2002.<br>ENGLISH ABSTRACT: Successful export of South African fresh fruit requires fruit of a high quality. Variable fruit quality within a consignment is detrimental to effective marketing of the product. The light microclimate under which the fruit develops is one of the factors that affect within-tree and between-tree variation in quality, maturity and yield. Light exposure effects on fruit quality at harvest and after commercial storage and ripening periods, as well as the physiological mechanisms of these responses to light exposure were studied

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2

Smit, Armand. "Apple tree and fruit responses to shade netting." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/463.

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3

Lewallen, Kara. "Effects of Light Availability and Canopy Position on Peach Fruit Quality." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/31922.

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Two experiments were conducted to determine the influence of light on 'Norman' and 'Cresthaven' peach fruit quality characteristics. Of primary interest was the relationship between ground color and flesh firmness. Light levels were manipulated by use of shade cloth, reflective mulch, and aluminum foil. 'Norman' trees, with a randomly chosen half of the canopy covered with 73% shade cloth, had fruit with lower levels of red color, soluble solids concentration (SSC), specific leaf weight, and average photosynthetic photon flux (PPF) than did non-shaded trees. Foil-covered 'Cresthaven' fruit

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4

Dotto, Marcelo. "Crescimento e desenvolvimento de Plinia cauliflora de acordo com a intensidade luminosa em clima subtropical." Universidade Tecnológica Federal do Paraná, 2015. http://repositorio.utfpr.edu.br/jspui/handle/1/1722.

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As jabuticabeiras são pertencentes da família Myrtaceae e ao gênero Plinia. Existem cerca de nove espécies desta fruteira, das quais se destacam Plinia trunciflora (jabuticaba de cabinho) que tem ocorrência natural na região Sudoeste do Paraná, P. cauliflora (jabuticaba paulista ou jabuticaba Açu) e P. jaboticaba (Vell) (jabuticaba sabará), sendo que ambas produzem frutos tanto para a indústria como para consumo in natura. Apesar disso, não existem muitos pomares comercias com a cultura, prevalecendo-se o extrativismo. Isto pode estar aliado a falta de conhecimento técnico para o manejo das pl

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5

Kalaj, Yousef Rezaei. "Effects of preharvest factors and postharvest treatments on fruit quality of Prunus domestica L." Doctoral thesis, Humboldt-Universität zu Berlin, Lebenswissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17458.

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Der Verzehr von Pflaumen ist derzeit sehr gering. Häufig wird unbefriedigende Fruchtqualität aufgrund unreif geernteter Früchte als Ursache genannt. Um eine hohe Fruchtqualität zu erzeugen ist es nötig, Vorerntebedingungen wie Fruchtbehang und Bodeneigenschaften optimal zu gestalten und die Früchte im richtigen Reifestadium zu ernten. Die Ziele dieses Projektes waren daher 1. die Untersuchung des Einflusses und interaktiver Effekte von Bodeneigenschaften, Fruchtbehang und Baumwasserzustand auf die Qualität von ''Jojo'' und ''Tophit plus'' Pflaumen. 2. den Effekt unterschiedlicher Pflücktermin

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6

Obande, Matthew A. "Effect of preharvest UV-treatment on shelf life of fruits and vegetables." Thesis, Loughborough University, 2010. https://dspace.lboro.ac.uk/2134/7768.

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The benefits of low UV dose treatment of horticultural produce – also known as hormetic treatment - have been attested to in numerous studies conducted over the last 15 years. However, commercial growers have not adopted the concept of hormesis. With increasingly stringent controls on the use of fungicides and other chemical agents the time has come to examine how hormetic treatment might be applied in the horticulture sector. The objectives of this work were firstly, to confirm UV-induced hormetic effects applied postharvest for a number of different types of produce, namely, tomatoes, brocco

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7

Massot, Capucine. "Analyse des variations de la teneur en vitamine C dans le fruit de tomate et rôle de l’environnement lumineux." Thesis, Avignon, 2010. http://www.theses.fr/2010AVIG0631/document.

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Les fruits et légumes constituent la principale source de vitamine C dans l’alimentation humaine, mais leur concentration en vitamine C varie fortement en fonction de la saison et des conditions de culture. Au cours de cette thèse, nous avons testé successivement différentes hypothèses afin de mettre en évidence le rôle de la lumière dans ces variations, en prenant comme modèle le fruit de tomate. Nous avons supposé i) un effet direct du rayonnement intercepté par les fruits sur le métabolisme de la vitamine C (synthèse, recyclage, dégradation), ou ii) un effet du rayonnement sur les feuilles

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8

Bénard, Camille. "Étude de l'impact de la nutrition azotée et des conditions de culture sur le contenu en polyphénols chez la tomate." Thesis, Vandoeuvre-les-Nancy, INPL, 2009. http://www.theses.fr/2009INPL050N/document.

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Au cours de ce travail de thèse nous avons étudié l’influence des apports en azote nitrique sur le contenu en polyphénols chez la tomate. Plusieurs dispositifs de culture hors sols ont été utilisés (hydroponie, laine de roche, NFT). Nous avons quantifié les principaux composés phénoliques de la tomate, à savoir : l’acide chlorogénique, la rutine, le kaempférol rutinoside dans les parties végétatives de la plante (limbe, tige et racine), ainsi que des dérivés de l’acide caféique et la naringénine chalcone dans les fruits. Ces composés ont été analysés par chromatographie liquide à haute perform

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9

Campbell, Richard J. "Canopy light environment influences apple leaf physiology and fruit quality." Diss., Virginia Tech, 1991. http://hdl.handle.net/10919/39857.

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Several experiments were conducted to determine: the influence of canopy position, girdling, and defoliation on nectar production; whether instantaneous light measurements yield reliable estimates of cumulative seasonal light levels within the canopy; and the effect of the canopy light environment on spur leaf physiology and fruit quality. Defoliation of nongirdled flowering spurs had no effect on nectar production or composition, while defoliation of girdled spurs n~duced nectar sugar concentration by 24%. Canopy position had no influence on nectar production or composition. At full bloom the

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10

Le, Grange Monique. "Effect of kaolin applications on pome fruit." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52255.

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Thesis (MScAgric)--Stellenbosch University, 2001.<br>ENGLISH ABSTRACT: Sunburn is a major problem in the apple industry worldwide. A kaolin product, M-97- 009 (100% kaolin), originally developed for insect control, was evaluated for its efficacy in controlling sunburn on pome fruit. Trials were conducted over two seasons in two different areas of the Western Cape, South Africa. During the first season, 'Royal Gala', 'Fuji' and 'Granny Smith' apples were evaluated in the Koue Bokkeveld. The kaolin was mixed with water and applied to the trees by means of a hand-gun regularly throughout th

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11

Kaneko, Ai. "Responses of Hymenomycete Fruit-bodies to Light and Gravity : Growth Straight Downward in Light from Below." Kyoto University, 2001. http://hdl.handle.net/2433/150740.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(人間・環境学)<br>甲第9025号<br>人博第118号<br>12||120(吉田南総合図書館)<br>新制||人||29(附属図書館)<br>UT51-2001-F355<br>京都大学大学院人間・環境学研究科人間・環境学専攻<br>(主査)教授相良直彦, 教授池永満生, 助教授加藤真<br>学位規則第4条第1項該当

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12

Pandiyan, Ishwarya, and Sailaja Gudipudi. "Effect of fruit flavor compounds on biogas production." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-17515.

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The purpose of the experiment was to investigate the effect of fruit flavor compounds on biogas production from fruit wastes. The flavor compounds from different fruits were selected and synthetic medium was used throughout the experiment. The experiment was carried out both in batch and continuous process using thermophilic inoculums obtained from Söbacken waste management plant. The inhibitors were added at three different concentrations 0.05g/L, 0.5g/L and 5g/L respectively and were carried out in triplicates for batch cultivation.The result from batch cultivation showed that hexanal, (E)-2

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13

Marais, Stephan J. S. "Sunburn control in apple fruit." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/50458.

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Thesis (MSc)--Stellenbosch University, 2005.<br>ENGLISH ABSTRACT: Sunburn on apple and pear fruit results in large losses of export volumes in South African orchards. Producers estimate that losses due to sunburn are often about 10- 20%. Knowledge of temperature thresholds for sunburn as well as technologies available to manage sunburn is important to increase producer earnings. The effect of evaporative cooling on fruit surface temperature and sunburn was evaluated on 'Cripps' Pink', 'Royal Gala' and 'Fuji' apples as well as 'Forelle' pears. Evaporative cooling was effective in reducin

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14

Prasad, Pagadala Venkatat Vara. "The effect of heat stress on fruit-set and fruit yield of groundnut (Arachis hypogaea L.)." Thesis, University of Reading, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287379.

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Groundnuts (Arachis hypogaea L.) grown in the semi-arid tropics are commonly exposed to air and soil temperatures> 35°C. This research in controlled environments has shown that continuous exposure of plants to hot air (day/night, 38°/22°C) and/or hot soil (38°/30°C) temperatures during the reproductive .phase (from flower bud appearance until reproductive maturity) significantly reduces total dry matter production, the partitioning of dry matter to pods and seed yields. The effects of hot air and hot soil temperature were additive and without interaction. Hot air temperature had no effect on f

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15

Marson, Hayley Johanne. "The effect of processing and storage on fruit products." Thesis, University of Nottingham, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.581990.

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There is a large body of evidence to suggest that an increased consumption of fruit is beneficial to health. However the quality of data in relation to fruit products is varied, with extremely limited research in relation to extrusion and smoothie processing, whilst data for fresh cut fruit and juice processing is selective in terms of commodity type rather than varietal or country of origin data. The hypothesis underlying this research looked to confirm that variety, country of origin and / or their interaction will influence the nutritional composition of whole fruits. Secondly the hypothesi

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16

Hayakawa, M., T. Kinoshita, and A. I. Sanda. "Hadronic Light-by-Light Scattering Effect on Muon g -2." The American Physical Society, 1995. http://hdl.handle.net/2237/7156.

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17

Samuel, Örn. "Estimating Light Interception of Orchard Trees Using LiDAR and Solar Models." Thesis, Linköpings universitet, Reglerteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-134125.

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In farming of fruit trees it is of interest to know the light interception of the trees. Therefore, in this project, a geometric model of the trees was derived using LiDAR data and this was combined with a sky model to estimate the light interceptionof orchard trees. The light interception was estimated by first synthesising a discrete model of the hemispherical sky, which holds a measure of global lightradiation in each node. The light interception of the trees was then estimated by ray tracing from the sky, applying a radiation absorption model where rays passed the point cloud representatio

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18

Chung, Thanh Tu. "Effect of wounding on cell wall hydrolase expression in fruit." Thesis, University of Nottingham, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.415488.

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19

Wikandari, Rachma. "Effect of fruit flavors on anaerobic digestion : inhibitions and solutions." Doctoral thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-3707.

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Fruits are among the most important commodities in global trading due to its fundamental nutritional values. In 2012, the fruits supply was 115 kg/person/year, however, only 50 % of the fruits reached their consumers and the rest ended up as waste during the long fruit supply chain. The waste from fruits is mostly dumped or burned, creating a serious environmental problem. A more sustainable handling of the waste is therefore highly desirable. One of them is conversion of the fruits wastes into biogas through anaerobic digestion. One challenge with the conversion of fruits wastes into biogas i

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20

Meyer, Marjolaine Dorothee. "Effect of controlling ethylene on ripening of avocado cv. Hass fruit." Thesis, Cranfield University, 2010. http://dspace.lib.cranfield.ac.uk/handle/1826/10459.

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Rigorous control of ethylene inside storage atmosphere is cardinal to maintain quality of climacteric fruit, including avocado cv. Hass. This can be achieved using the ethylene action inhibitor, 1-methylcyclopropene (1-MCP). The recent development of a novel palladium (Pd)-based ethylene scavenger, e+® Ethylene Remover, provides a new opportunity to delay avocado fruit ripening. A new method was developed to sequentially extract and quantify both lipids and sugars from the same avocado mesocarp tissue sample. Extraction by homogenization with hexane yielded slightly less oil than the standard

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21

Aguilar, Lara Karla. "Effect of ultraviolet/visible radiation processing on the quality of fruit juices." Doctoral thesis, Universitat de Lleida, 2017. http://hdl.handle.net/10803/405804.

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Aquest treball va estudiar la irradiació ultraviolada-visible (UV-Vis) com una alternativa per a la pasteurització de sucs. Els resultats van mostrar que la irradiació ultraviolada no produeix hidroximetilfurfural i es capaç de degradar-lo. Es va proposar un mecanisme de foto-degradació i es van usar diferents models cinètics per descriure la reacció. La foto-degradació de la vitamina C va ser insignificant usant una làmpada d’emissió múltiple. A més, el processament d’UV-Vis va ser efectiu inactivant els enzims polifenoloxidasa i peroxidasa; a major temperatura major inactivació. Mentrestant,

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22

Karim, Mohammad R., Glenn C. Wright, and Kathryn C. Taylor. "Effect of Foliar Boron Sprays on Yield and Fruit Quality of Citrus." College of Agriculture, University of Arizona (Tucson, AZ), 1996. http://hdl.handle.net/10150/220555.

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Deficiency of boron (B) in citrus has serious consequences for tree health and crop production. There is evidence that B deficiency may be a problem in Arizona citrus. Certainly, many symptoms of B deficiency are apparent, especially on the Yuma Mesa. A field trial was conducted at Yuma, Arizona to examine the effect of foliar boron application on fruit yield and quality of Citrus sinensis and C. limon. Boron was applied to 5 year old Citrus sinensis cv. Hamlin and C. limon cv. Rosenberger Lisbon trees at 5 different concentrations (0 ppm, 500 ppm, 1000 ppm, 2000 ppm, 3000 ppm) either before f

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23

Dallabetta, Nicola <1964&gt. "Effect of training systems and pruning methods on fruit quality in apple." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6366/.

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The introduction of dwarfed rootstocks in apple crop has led to a new concept of intensive planting systems with the aim of producing early high yield and with returns of the initial high investment. Although yield is an important aspect to the grower, the consumer has become demanding regards fruit quality and is generally attracted by appearance. To fulfil the consumer’s expectations the grower may need to choose a proper training system along with an ideal pruning technique, which ensure a good light distribution in different parts of the canopy and a marketable fruit quality in terms of si

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24

Abdullah, Wan Mohammad H. W. "The effect of moisture loss on the mechanical and sensory properties of carrots." Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239066.

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25

Bianchetti, Ricardo Ernesto. "Phytochrome and phytohormone interplay in tomato: impacts on fruit physiology and quality traits." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/41/41132/tde-03042018-085522/.

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Phytochromes (PHYs) and plant hormones have been emerging as important regulators of fleshy fruit physiology and quality traits; however, the relevance of PHY-hormonal signaling crosstalk in controlling fruit development and metabolism remains elusive. This Thesis assesses the role of PHYs and their interplay with auxins, cytokinins and ethylene during the regulation of tomato (Solanum lycopersicum) fruit development and ripening, with a focus on the control of the plastid biogenesis, sugar metabolism and carotenoid accumulation. In Chapter I, we present evidence that the deficiency in PHY chr

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26

Goosen, Dominique. "Factors influencing fruit shape in lemons (Citrus limon L.)." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52842.

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Thesis (MScAgric)--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: Lemons with an elongated fruit shape achieve premium prices in certain discerning markets. Factors influencing the fruit shape of lemons were investigated to fmd means to produce a crop with a higher percentage of elongated lemons. Intra-plant factors were investigated to understand the variation in fruit shape within a single tree and even within the same fruit cluster. Bearing position (leafy vs. leafless inflorescences) and position in the canopy (inside vs. outside) were taken into consideration, along with th

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27

Gwinner, Michael Christian. "High-performance light-emitting polymer field-effect transistors." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610236.

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28

Doyle, Colleen Elizabeth. "Effect of Short-Term Light Exposure on Alertness." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1524088785098075.

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29

Lafont, O., S. M. H. Luk, P. Lewandowski, et al. "Controlling the optical spin Hall effect with light." AMER INST PHYSICS, 2017. http://hdl.handle.net/10150/623050.

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The optical spin Hall effect is a transport phenomenon of exciton polaritons in semiconductor microcavities, caused by the polaritonic spin-orbit interaction, which leads to the formation of spin textures. The control of the optical spin Hall effect via light injection in a double microcavity is demonstrated. Angular rotations of the polarization pattern up to 22 degrees are observed and compared to a simple theoretical model. The device geometry is responsible for the existence of two polariton branches which allows a robust independent control of the polariton spin and hence the polarization

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30

Maurer, Michael A., and Kathryn C. Taylor. "Effect of foliar boron sprays on yield and fruit quality of navel oranges." College of Agriculture, University of Arizona (Tucson, AZ), 1999. http://hdl.handle.net/10150/222531.

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A field study was designed to determine if foliar boron (B) sprays could increase fruit set and yield of 'Parent Washington' navel oranges (Citrus sinensis). Treatments consisted of two application timings (prebloom and postbloom) and five application rates 0, 250, 500, 750 and 1000 ppm B as Solubor. Leaf B levels had a significant response to both application timing and rate. There were no significant difference in fruit quality or yield.

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31

Sagredo, Karen X. "Effect of rest-breaking and fruit thinning treatments on reproductive development in apple." Thesis, Link to the online version, 2008. http://hdl.handle.net/10019/2038.

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32

Dawson, Bryan Sterling. "Carbon Dioxide Treatment on Strawberry Fruit Prep and Its Effect on Shelf Life." BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/7719.

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This research evaluates the effectiveness of using carbon dioxide (CO2) pressurization to extend strawberry fruit prep shelf life for the eventual use in yogurt applications. In this experiment, CO2 treatments of 5, 15, and 25 pounds per square inch were used as a processing step to inactivate microorganisms, which in turn could aid in the preservation and maintenance of product quality during storage thus improving consumer acceptance of the yogurt. Microbial levels of the fruit prep treatments were monitored over a six-week period by enumerating aerobic plate counts and yeast and mold levels

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Saito, Asumi, and Asumi Saito. "The Effect of Supplemental Nutrition Assistance on Fruit and Vegetable Consumption in Arizona." Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/625343.

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The Supplemental Nutrition Assistance Program (SNAP) is the largest domestic hunger safety net program in the United States. It has been shown that SNAP increases households' purchasing power. However, only a quarter of Americans follow recommended healthy eating patterns. Hence, there is a question whether the additional income from SNAP transfers to healthier eating. This paper addresses three questions. First, what factors explain SNAP participation of low-income individuals in addition to basic income eligibility requirements? Second, does SNAP participation increase fruit and vegetable

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34

Mostert, ME, BM Botha, Plessis LM Du, and KG Duodu. "Short Communication Effect of fruit ripeness and method of fruit drying on the extractability of avocado oil with hexane and supercritical carbon dioxide." Society of Chemical Industry, 2007. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000806.

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Background: Oil yield from avocado fruit may be influenced by fruit pre-treatment and extraction method. Unripe and ripe avocado fruit pieces were deep-frozen at −20 ◦C and either freeze-dried or oven-dried (80 ◦C). Oil yield from these samples was determined after extraction with hexane and supercritical carbon dioxide (SC-CO2). The fruit samples were examined using scanning electron microscopy before and after oil extraction. RESULTS: Average oil yield from ripe fruit (freeze-dried and oven-dried combined) was 72 g kg−1 higher than from unripe fruit for SC-CO2 extracts and 61 g kg−1 higher f

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35

Hert, Kerrie Ann. "Effect of Nutrition Education with Fruit and Vegetable Supplementation on Fruit and Vegetable Intake and Anthropometric Measurements among Adults of Varying Socioeconomic Status." Thesis, North Dakota State University, 2012. https://hdl.handle.net/10365/26813.

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Intake of fruit and vegetable (F/V) is inadequate and obesity is more prevalent among adults of lower socioeconomic status (SES) in the U.S. This study determined the effect of nutrition education (NutrED) and F/V supplementation (F/VSupp) on F/V intake and anthropometrics of individuals of varying SES. Thirty-eight overweight or obese adults were randomly assigned into a control, education, or F/V group. Participants in the education and F/V groups attended weekly NutrED classes for 10 weeks. The F/V group also received one serving of fruit and two servings of vegetable daily. Results showed

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36

Marmon, Jason Kendrick. "Light-matter interactions in semiconductor nanowires| Light-effect transistor and light-induced changes in electron-phonon coupling and electrical characteristics." Thesis, The University of North Carolina at Charlotte, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10243428.

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<p> This dissertation explores three related embodiments of light–matter interactions at the micro– and nano–scales, and is focused towards tangible device applications. The first topic provides a fundamentally different transistor or electronic switch mechanism, which is termed a light–effect transistor (LET). The LET, unlike exotic techniques, provides a practical and viable approach using existing fabrication processes. Electronic devices at the nanoscale operate within the ballistic regime, where the dominate source of energy loss comes from impurity scattering. As

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Panjai, Lachinee [Verfasser]. "The role of post-harvest supplementary light exposure for ripening and quality development of tomato fruit / Lachinee Panjai." Bonn : Universitäts- und Landesbibliothek Bonn, 2020. http://d-nb.info/1224270673/34.

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38

Grant, Robert Wallace. "A UV Zeeman-effect polarizer." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/24674.

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It is shown that light emitted by mercury vapour at 253.7 nm can be polarized by passing the light through mercury absorption gas embedded in a magnetic field which is transverse to the direction of propagation of the light. The absorption lines of the mercury are split by the Zeeman effect, so that the absorber has an absorption coefficient which depends on both the polarization and wavelength of the transmitted light. A complete theory for the Hg²⁰² isotope is presented and the results are compared to measurements made with a natural mercury emitter and absorber. The observations are in qua

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Pardonnet, Sylvia. "Effect of Tree-Fall Gaps on Fruit-Feeding Nymphalidae Assemblages in a Peruvian Rainforest." Thesis, Linköping University, Linköping University, Linköping University, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-57634.

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40

Van, Schoor Louise. "Effect of biological amendments on soil microbial properties and performance of pome fruit trees." Thesis, Stellenbosch : Stellenbosch University, 2009. http://hdl.handle.net/10019.1/4602.

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Thesis (PhD(Agric))--Stellenbosch University, 2009.<br>ENGLISH ABSTRACT: The global movement in agriculture is towards more environmentally friendly, sustainable production practices, since the role of soil microbial functions in ensuring crop production and soil fertility has become more evident in agricultural systems. Furthermore, with the impeding phase-out of methyl bromide, apple replant disease (ARD) is becoming an increasingly important problem and biological management practises are needed. Since microbial activity is generally carbon-limited in agricultural soil, it is widely accept

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41

Kotze, Willem Petrus. "The effect of mulching on tree performance and fruit quality of 'cripps' pink' apples." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20144.

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Thesis (MScAgric)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: Three field trials were conducted to investigate the effects of mulching on the chemical and biological aspects of the soil as it is reflected by tree performance and fruit quality in ‘Cripps’ Pink’ orchards. In the two trials at Lourensford Estate, where only the soil type differed between sandy silt loam (sandy) and heavy silt loam (heavy), mulches where used as an additive to the soil surface together with a standard, commercial, inorganic fertilization program. Four different mulch types: compost, wood chips, verm

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Hamadziripi, Esnath Tatenda. "The effect of canopy position on the fruit quality and consumer preference of apples." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/71624.

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Thesis (MScAgric)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: We aimed to determine how canopy microclimate influences fruit quality and consumer preference in apples. Our postulate was that consumer preference would be higher for the taste, but not necessarily for the appearance of outer canopy fruit. Outer canopy fruit, exposed to higher irradiance and temperatures, accumulated more phenolics and ascorbic acid, and had higher antioxidant capacities in their peel compared to inner canopy fruit. Phenolic levels and antioxidant capacity were also higher in the flesh of outer cano

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Beukes, Odette. "The effect of regulated deficit irrigation on the production and fruit quality of peaches." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/53107.

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Thesis (MSc)--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: The effects of regulated deficit irrigation on the production and fruit quality of peaches were investigated. A field trial was carried out in a twelve-year-old Neethling peach orchard at Robertson Experiment Farm. Treatments consisted of five different soil water depletion levels applied during five different growth stages. Irrigation was applied at the five soil water depletion levels of which T1 was regarded as relatively wet (irrigation was applied when the average soil matric potential reached ca. -50 kPa). T2 was

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Carmichael, Patricia Cassie. "Effect of fruit maturation and ripening potential for optimum eating quality of 'Forelle' pears." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6730.

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Thesis (MScAgric (Horticulture))--University of Stellenbosch, 2011.<br>Includes bibliography.<br>ENGLISH ABSTRACT: Climatic differences between production areas or seasons directly affect the rate of fruit maturation and the eating quality following storage and ripening. South African ‘Forelle’ pears are harvested at an optimum firmness of 6.4 kg and have mandatory cold storage duration of 12 weeks at -0.5°C to ensure even ripening. The firmness variable alone, however, is not a good indicator of ripening potential. Hence, various maturity variables (ethylene production, ground colour, firm

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Tan, Cedric Kaiwei. "The effect of relatedness on sexual dynamics : studies of red junglefowl and fruit flies." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:7ea10d0d-b1f5-45f2-9d5e-63e852594c3f.

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In this thesis, I explore four different ways in which relatedness affects sexual interactions in the red junglefowl Gallus gallus ssp., and the fruit fly Drosophila melanogaster. First, I show that in both species, inbreeding depression is sex-specific and modulated by parental age and gametic age. However, the sex that suffers higher inbreeding depression was trait- and species-dependent. Second, I examined patterns of inbreeding avoidance. I found no evidence of inbreeding avoidance in the fruit fly, but in the red junglefowl both males and females avoided mating with relatives, independent

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Rautenkranz, Andreas A. F. "Effects of shading and light enrichment on the growth, fruit development, and yield of soybean /." 1990. https://scholarworks.umass.edu/theses/3519.

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Cook, Sandra M. "Runner plant production and the effect of light intensity on flower and fruit development in day-neutral strawberries." 2002. http://www.lib.ncsu.edu/theses/available/etd-09102002-173139/unrestricted/etd.pdf.

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Shih, Heng-Hui, and 施恒慧. "A Study on LED Light Source Design on Fruit Presentation." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/v2629b.

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博士<br>大同大學<br>設計科學研究所<br>107<br>This study explores LED light sources, including thematic light sources, as well as background light sources, to explore their effects on the fruit presentation of the items, and to find the best fruit color lighting design. The focus is on the color cast of the illuminated objects affected by different light sources. In this study, LED light source color temperature (°K), color rendering (CRI), illumination (Lux) and other parameters were used to design the light source. Then we use questionnaires and cluster analysis to get six fruit image vocabulary. The expe

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Shih, Heng-Hui, and 施恒慧. "Effects of LED Light Color Temperature, Illumination and Color Rendering Index on Consumers’Choice of Fruits." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/58173596588537749758.

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碩士<br>大同大學<br>工業設計學系(所)<br>100<br>In the present study, consumers’ seletivtiy of fruits as affected by color temperature, illumination and color rendering index of LED lights was determined. To evaluate the change of light perception in interior space, the experiment was conducted in the darkroom controlled at Munsell blackness. By using the method of semantic differential, a total of 16 trials consisted of two types of fruits, two levels of color temperature, color rendering index and illumination, respectively, was set. The data obtained were analyzed by ANOVA (Anlysis of Variance) with SPS

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Qiu, Yunxia. "The effect of calcium on papaya fruit softening." Thesis, 1992. http://hdl.handle.net/10125/9473.

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