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Dissertations / Theses on the topic 'Respiration rate of plants'

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Published: 4 June 2021
Last updated: 2 August 2025

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1

Bower, Jenny H., of Western Sydney Hawkesbury University, of Science Technology and Environment College, and of Science Food and Horticulture School. "The relationship between respiration rate and storage life of fresh produce." THESIS_CSTE_SFH_Bower_J.xml, 2001. http://handle.uws.edu.au:8081/1959.7/110.

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This project examines whether there is a direct link between respiration and the rate of senescence of fresh produce. Treatments that increase the storage life of fresh products, such as cooling, modified atmospheres and semi-permeable coatings, often decrease respiration rates. This suggests that it may be possible to assess the effectiveness of a specific storage treatment in terms of its effect on reducing respiration. If this is so, total respiration during storage should sum to a constant regardless of changes in the storage conditions. Such an equivalence between 'respiration life' and s
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2

Matarese, Dawn Marie. "Impacts of Rhizosphere CO₂ on Root Phosphoenolpyruvate Carboxylase Activity, Root Respiration Rate and Rhizodeposition in Populus spp." PDXScholar, 2010. https://pdxscholar.library.pdx.edu/open_access_etds/345.

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Roots live in and have evolved in a high carbon dioxide (CO₂) environment, yet relatively little research has been conducted on the impacts of soil dissolved inorganic carbon (DIC) on root metabolism. In this thesis, I explore the impacts of root-zone DIC on whole plant biomass accumulation, water use efficiency, and above-ground gas exchange. In addition, I explore the impacts of root-zone DIC on root processes: root PEP-Carboxylase activity, root respiration rate and root exudation of Krebs cycle organic acids. Root-zone DIC did not impact biomass accumulation, leaf gas exchange parameters o
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3

Geipel, Katja, Maria Lisa Socher, Christiane Haas, Thomas Bley, and Juliane Steingroewer. "Growth kinetics of a Helianthus annuus and a Salvia fruticosa suspension cell line: Shake flask cultivations with online monitoring system." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-213256.

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Plants produce a variety of secondary metabolites, e.g. to defend themselves against herbivores or to attract pollinating insects. Plant cell biotechnology offers excellent opportunities in order to use such secondary plant metabolites to produce goods with consistent quality and quantity throughout the year, and therefore to act independently from biotic and abiotic environmental factors. This article presents results of an extensive study of plant cell in vitro cultivation in a modern shake flask system with non-invasive online respiration activity monitoring unit. Comprehensive screening e
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4

Geipel, Katja, Maria Lisa Socher, Christiane Haas, Thomas Bley, and Juliane Steingroewer. "Growth kinetics of a Helianthus annuus and a Salvia fruticosa suspension cell line: Shake flask cultivations with online monitoring system." WILEY-VCH Verlag GmbH & Co. KGaA, 2013. https://tud.qucosa.de/id/qucosa%3A29933.

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Plants produce a variety of secondary metabolites, e.g. to defend themselves against herbivores or to attract pollinating insects. Plant cell biotechnology offers excellent opportunities in order to use such secondary plant metabolites to produce goods with consistent quality and quantity throughout the year, and therefore to act independently from biotic and abiotic environmental factors. This article presents results of an extensive study of plant cell in vitro cultivation in a modern shake flask system with non-invasive online respiration activity monitoring unit. Comprehensive screening e
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5

Fennir, Mohamed A. "In situ estimation of respiration and transpiration rates of stored fruits and vegetables." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ29691.pdf.

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6

Searle, Stephanie Yoke-Ying. "The temperature dependence of plant alternative oxidase and its impact on respiration rates in nature." Thesis, University of Canterbury. School of Biological Sciences, 2010. http://hdl.handle.net/10092/5930.

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The physiological function of the plant enzyme alternative oxidase has long been a topic of debate. The cyanide-resistant alternative oxidase (AOX), along with the cytochrome c oxidase (COX), catalyzes the reduction of oxygen to water in the electron transport chain of mitochondrial respiration. Although respiration via the alternative pathway (AP) results in approximately one third of the ATP production as respiration via the cytochrome pathway (CP), the AP is utilized by all plants and some fungi and animals. This “energy wasteful” pathway has been proposed to reduce oxidative stress in plan
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7

Tang, Evonne P. Y. (Evonne Pui Yue). "The allometry of algal growth and respiration." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22815.

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A knowledge of the allometry of algal growth and respiration can be applied to biomass-size distribution models which are in turn used in the prediction of fish yield and ecosystem studies. However, the scaling exponents reported in the literature are variable. This variation may be attributed to differences in the expression of cell size and phylogeny, but could also reflect small sample size which underlie most published regressions. This thesis establishes the allometry of algal growth and respiration based on a larger sample taken from the literature, and evaluates the effects of differenc
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8

Lesiuk, Veronika. "Respiratory sinus arrhythmia : interaction of breathing frequency and heart rate changes." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=81356.

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Heart rate variability is commonly interpreted as a measure of vagal tone. Changes in heart rate variability and more specifically respiratory sinus arrhythmia (RSA) are however also commonly observed when breathing is altered without changes in heart. This study examined how decreasing vagal tone through a low level (6%MVC) handgrip (HG) contraction and changing breathing frequency, alone or in combination, affected heart rate variability and respiratory sinus arrhythmia. ECG and respiratory recordings were obtained in 16 university students. Results show that decreasing breathing rate
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9

Khamnei, S. "Some factors affecting respiration in man." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.258344.

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10

Gunasekara, A. K. Isuru Udayanga W. "Contactless Estimation of Breathing Rate Using UWB Radar." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/37049.

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Contactless breathing estimation using radars has been explored since the 1960s and an accurate system with the ability to continuously monitor the health of non-critical patients without obstructing their day to day lives could significantly improve their well being. The current state of the art in this area does not have the accuracy required to work in a real-world environment and many of the existing methods have been tested only under very controlled situations. Low performance of breathing estimation algorithms under different scenarios inspired us to improve breathing estimation algorit
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11

Raihani, Nilgoun. "Respiration Pattern Using Amplified Video." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case151272961173245.

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12

Dyson, Thomas L. "Respiration during development and germination of muskmelon seeds (Cucumis melo L.)." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-09192009-040509/.

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13

Bower, Jenny Hazel. "The relationship between respiration rate and storage life of fresh produce /." View thesis View thesis View thesis, 2001. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030407.102152/index.html.

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14

Al-Bahrany, Abdulaziz Maatook 1960. "PHYSIOLOGICAL RESPONSES OF TOMATO CULTIVARS SUBJECTED TO SALINITY (GERMINATION, RESPIRATION)." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/276460.

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15

Li, Chang. "Non-contract Estimation of Respiration and Heartbeat Rate using Ultra-Wideband Signals." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/34990.

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The use of ultra-wideband (UWB) signals holds great promise for remote monitoring of vital-signs which has applications in the medical, for first responder and in security. Previous research has shown the feasibility of a UWB-based radar system for respiratory and heartbeat rate estimation. Some simulation and real experimental results are presented to demonstrate the capability of the respiration rate detection. However, past analysis are mostly based upon the assumption of an ideal experiment environment. The accuracy of the estimation and interference factors of this technology has not been
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16

Frantz, Jonathan M. "Determining the Factors That Control Respiration and Carbon Use Efficiency in Crop Plants." DigitalCommons@USU, 2003. https://digitalcommons.usu.edu/etd/6600.

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In the literature on plant respiration, there are two viewpoints concerning the source of respiratory control: supply (photosynthate availability) or demand (temperature dependent) limitations. While different studies indicate the primary dependency for respiration is either the supply or demand side, the two paradigms cannot both be true. The relative importance of each paradigm may depend on a number of factors including period of time during which respiration is measured, phase of plant development, environmental conditions, and species. Studies were performed using continuous CO2 gas-excha
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17

Stewart, Heather 1971. "Partitioning belowground respiration in a northern peatland." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=98806.

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To further the understanding of respiration processes of northern peatlands, the relative importance of each type of belowground respiration was determined at Mer Bleue, a northern peatland located near Ottawa, Ontario, from June to November, 2003. Direct measurements of total, soil organic matter (SOM) and root respiration were made, with rhizosphere respiration determined by residual. Although an aboveground source, determination of live Sphagnum respiration was also attempted in the field. To identify changes in CO2 fluxes with environmental conditions, peat temperature and water table leve
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18

Pilbeam, C. J. "Comparative studies of populations of perennial ryegrass differing in their rate of respiration." Thesis, University of Reading, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376256.

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19

Xin, Arthur S. "PERFORMANCE LOSS RATE ANALYSIS OF 1100 PHOTOVOLTAIC POWER PLANTS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case1592483422090231.

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20

Lundmark, Maria. "Low temperature acclimation in plants : alterations in photosynthetic carbon metabolism." Doctoral thesis, Umeå : Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1333.

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21

Bruhn, Dan. "Plant respiration and climate change effects." Roskilde : Risø National Laboratory, 2002. http://www.risoe.dk/rispubl/PRD/prdpdf/ris-r-1332.pdf.

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22

Gaughan, John Beckley. "Respiration rate and rectal temperature responses of feedlot cattle in dynamic, thermally challenging environments /." St. Lucia, Qld, 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16104.pdf.

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23

Moser, Jonathan G. "Cold Season Physiology of Arctic Plants." FIU Digital Commons, 2012. http://digitalcommons.fiu.edu/etd/750.

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The cold season in the Arctic extends over eight to nine months during which ecosystem gas exchange and water balance of arctic plants have been largely unexplored. The overall objective of this thesis was to examine two critical gaps in our knowledge about tundra cold season processes – ecosystem respiration at very low temperatures and water uptake during the winter-spring transition. I determined the temperature response of ecosystem respiration of tundra monoliths down to temperatures as low as can be expected under snow-covered conditions (-15 °C). Temperature responses fit the Arrhenius
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24

Ow, Lai Fern. "Thermal acclimation of photosynthesis and respiration in Pinus radiata and Populus deltoides to changing environmental conditions." Thesis, University of Canterbury. Biological Sciences, 2008. http://hdl.handle.net/10092/2000.

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Although it has long been recognized that physiological acclimation of photosynthesis and respiration can occur in plants exposed to changing environmental conditions (e.g. light, temperature or stress), the extent of acclimation in different tissues (i.e. pre-existing and new foliage) however, has not received much attention until recently. Furthermore, few studies have investigated the extent of photosynthetic and respiratory acclimation under natural conditions, where air temperatures vary diurnally and seasonally. In this study, the effects of variations in temperature on respiratory CO2 l
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25

Monje, Oscar A. "Effects of Elevated CO2 on Crop Growth Rates, Radiation Absorption, Canopy Quantum Yield, Canopy Carbon Use Efficiency, and Root Respiration of Wheat." DigitalCommons@USU, 1993. https://digitalcommons.usu.edu/etd/6763.

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Wheat canopies were grown at either 330 or 1200 μmol mol-1 CO2 in sealed controlled environments, where carbon fluxes and radiation interception were continuously and nondestructively measured during their life cycles. The effects of elevated CO2 on daily growth rates, canopy quantum yield, canopy and root carbon use efficiencies, and final dry mass were calculated from carbon flux measurements in an open gas exchange system. Dry biomass at harvest was predicted from the gas exchange data to within ± 8%. The greatest effect of elevated CO2 occurred in the first 15d after emergence; however, se
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26

Giner-Mendoza, Mateo 1956. "EFFECT OF CLIPPING ON PHOTOSYNTHESIS, RESPIRATION AND PRODUCTION OF ERAGROSTIS LEHMANNIANA NEES AND DIGITARIA CALIFORNICA (BENTH.) HENR (ABOVE GROUND BIOMASS, ARIZONA, ROOT PRODUCTION)." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/276349.

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27

Hait, Aaron Vincent. "Cardio-respiratory responses to mental challenge : high, moderate, and low heart rate reactors." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/26825.

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Three issues were examined in this study: (1) the extent to which psychological challenge or stress elicits changes in the breathing patterns of normal subjects; (2) whether breathing pattern changes covary with cardiovascular arousal; and (3) whether individuals identified as being potentially at-risk for developing hypertension respond to mental challenge tasks with breathing pattern and cardiovascular changes that are reliably different from those of lower risk individuals. Subjects were 100 healthy young men divided into reactor quintiles on the basis of their heart rate (HR) changes to a
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28

Tolman, Deborah A. "The influence of plant age and nitrogen rate on nutrient removal from the container medium solution." Thesis, Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/91106.

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Adequate nutrient supply to the medium solution of container-grown crops is a major concern to container plant production practices. The extent to which nutrients are removed by the plant from the medium solution of a container, however, has never been demonstrated. Mariogold, Tagetes erecta ‘Inca’ seeds were glasshouse-grown in 500 cc plastic pots containing 1 peat: 1 perlite (v/v) medium and fertilized daily with 200 ppm N as ammonium nitrate. Thirty, 35, 40, 45 and 50 day old plants were subjected to either 20, SO, 80 or 110 ppm N. Medium solutions were tested at hour 0 and 6, and analyzed
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29

Clark, Naomi M. "Seasonal belowground plant responses to elevated CO₂ in the Mojave Desert root respiration and arbuscular mycorrhizal fungi dynamics /." abstract (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1447588.

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30

Ippoliti, Davide. "Outdoor production of Isochrysis galbana (T-iso) in industrial scale photobioreactors and modelling of its photosynthesis and respiration rate." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/9591/.

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Isochrysis galbana is a widely-used strain in aquaculture in spite of its low productivity. To maximize the productivity of processes based on this microalgae strain, a model was developed considering the influence of irradiance, temperature, pH and dissolved oxygen concentration on the photosynthesis and respiration rate. Results demonstrate that this strain tolerates temperatures up to 35ºC but it is highly sensitive to irradiances higher than 500 µE·m-2·s-1 and dissolved oxygen concentrations higher than 11 mg·l-1. With the researcher group of the “Universidad de Almeria”, the developed mo
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31

Wang, Yuan. "Heart rate variability and respiration signals as late onset sepsis diagnostic tools in neonatal intensive care units." Thesis, Rennes 1, 2013. http://www.theses.fr/2013REN1S106/document.

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Le sepsis tardif, défini comme une infection systémique chez les nouveaux nés âgés de plus de 3 jours, survient chez environ 7% à 10% de tous les nouveau-nés et chez plus de 25% des nouveau-nés de très faible poids de naissance qui sont hospitalisés dans les unités de soins intensifs néonatals (USIN). Les apnées et bradycardies (AB) spontanées récurrentes et graves sont parmi les principaux indicateurs précoces cliniques de l'infection systémique chez les prématurés. L'objectif de cette thèse est de déterminer si la variabilité du rythme cardiaque (VRC), la respiration et l'analyse de leurs re
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32

Liang, Yu. "EXOTIC INVASIVE PLANTS IN KENTUCKY." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_theses/23.

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Invasion of exotic species is a significant problem in natural ecosystems, reaching epidemic proportions and resulting in significant economic losses. However, insufficient knowledge of explicit spatial distribution of invasive species hinders our ability to prevent and/or mitigate future invasion. In this study, we demonstrate the use of existing voluntary data to survey invasive plant species in Kentucky. We also reconstructed the historical distribution of 16 exotic invasive plants typical to Kentucky using herbarium records. We found that Kentucky is facing a large threat from exotic invas
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33

Sebastian, Lemόne Margeaux. "Tonic immobility in two species of Southern African catsharks." University of Western Cape, 2020. http://hdl.handle.net/11394/8162.

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Magister Scientiae (Biodiversity and Conservation Biology) - MSc (Biodiv and Cons Biol)<br>Tonic immobility (TI) can be defined as an unlearned behavioural response described by a physical state of immobility. This behaviour can last from a few seconds up to several hours. Tonic immobility in sharks has not been investigated extensively, despite being observed and used widely. Due to this limited research, there is still uncertainty about the significance of this response, especially in smaller shark species. Anecdotal evidence suggests that females may enter a tonic state during courtship, bu
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34

Ofir, Dror. "Time course of adaptation in heart rate variability and respiratory sinus arrhythmia to intensive endurance training." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33917.

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The weekly time course of adaptation of Heart rate variability (HRV) and respiratory sinus arrhythmia (RSA) characteristics were examined over 4-weeks of intensive endurance training in 17 sedentary subjects (35.8 +/- 10.0 yrs). Five-minute ECG and breathing recordings were obtained at rest at spontaneous breathing (SP) and at paced breathing rates of SP+4 (M4) and SP-4 (P4) breaths/minute. Spectral power components of HRV were computed from the RR interval sequences; amplitude and phase of RSA were computed from the sinusoid fitted to the instantaneous heart rate within each breath. RSA sensi
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35

Al-Rawahy, Salim Ali. "Nitrogen uptake, growth rate and yield of tomatoes under saline conditions." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184894.

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Results of two studies are reported here, a greenhouse study and a field study. In the greenhouse study, dry matter yield and nitrogen (total and 15N) uptake of leaves, stems and roots of tomato plants (Lycopersicum esculentum Mill., cv. Columbia) subjected to saline stress by NaCl were studied. The integrated effects of responses of these tissues to salinity on the whole plant basis and levels of Na⁺, Cl⁻ and K⁺ accumulation in these tissues were also studied. The treatments consisted of low (control, 0.3 bar), medium (4.3 bars), and high (8.3 bars) salinity. The saline treatments were prepar
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36

Jelbert, K. "The comparative demography of invasive plants." Thesis, University of Exeter, 2018. http://hdl.handle.net/10871/34994.

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Biodiversity, ecosystems, industry and human health are threatened by invasive plant species. The costs of mitigating damages run into billions of pounds per annum. Fundamental to the control of invasive plant species is an ability to predict which species will become invasive. Yet identification of predictive differences between invasive and non-invasive species has proven difficult to pinpoint. In this thesis I identify several weaknesses within published literature, and using field experiments and meta-analyses we address these to find consistent predictors of invasiveness amongst plants. S
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37

Norton, Eric J. "Evaluation of multiple-rate biosolid applications on Sudangrass yield." College of Agriculture, University of Arizona (Tucson, AZ), 2003. http://hdl.handle.net/10150/205429.

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A field experiment was conducted during the 2003 growing season to evaluate the effect of multiple application rates of biosolids material on Sudan grass yield. Growers in the Mohave Valley region of the state have been using biosolids for the past several years principally as a source of nitrogen (N) and secondarily as a soil amendment. Mineralization rates vary widely based on environmental factors, in particular temperature and soil moisture. Little research been conducted in this particular growing region to refine recommended application rates. The objective of this study was to compare t
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Guest, Jeremy Scott. "Laboratory Testing of Process Controls for the Mitigation of Toxic Shock Events at Enhanced Biological Phosphorus Removal Wastewater Treatment Plants." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/44515.

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Toxic shock events can be detrimental to wastewater treatment systems and can result in long-term losses of system performance. If warned of an impending toxic shock, operators would have the opportunity to implement process controls that could help mitigate the effects of the shock event. The objective of this project was to evaluate the effectiveness of a developed corrective action strategy (involving aerobic endogenous respiration) on an enhanced biological phosphorus removal (EBPR) wastewater treatment plant (WWTP) shocked with chlorine. Three identical, laboratory-scale systems were d
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39

Winger, Alison Marie. "Impact of 4-hydroxy-2-nonenal in Arabidopsis mitochondria." University of Western Australia. Biochemistry and Molecular Biology Discipline Group, 2007. http://theses.library.uwa.edu.au/adt-WU2007.0121.

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[Truncated abstract] A range of biotic and abiotic stresses increase levels of reactive oxygen species (ROS) in plants due to perturbations of chloroplast and mitochondrial metabolism and the generation of ROS in defence responses. The polyunsaturated fatty acids of membrane lipids are susceptible to ROS induced peroxidation yielding various aldehydes, alkenals and hydroxyalkenals including the cytotoxic compound 4-hydroxy- 2-nonenal (HNE). HNE has the potential to cause substantial oxidative damage in cells via its reactivity with sulfhydryl groups of cysteine (Cys) and lipoic acid, the imida
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40

Dowden, Matthew Richard Barcroft. "Using Pressure Transducers for Noninvasive Heart and Respiratory Monitoring." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/34214.

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Detecting heart and respiratory rates is an essential means of providing emergency medical care. Current methods of detecting such signals include the widely used electrocardiography (ECG) method. Other more manual methods of heart and respiratory rate estimation require a practitioner to constantly observe the patient. These methods are time consuming and detract valuable time from emergency medical care. This thesis presents a novel, hands off, heart and respiratory monitor (HARMONI). It uses pressure transducers and medical tubing placed on a personâ s chest. The tubing is plugged of
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41

Ottman, Mike, Tom Ramage, and Gary Thacker. "Seeding Rate of One-Irrigation Barley." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/200485.

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One-irrigation barleys have been selected for performance with a pre-plant irrigation to fill the soil to field capacity to a depth of 5 feet. The barley is then grown with no additional irrigation, which simulates conditions of the North African coast. In this study, two of these barley selections were planted at four planting rates at three dates in Marana to determine optimum seeding rates. A seeding rate of 20 lbs /A resulted in greater yields than 40, 60, or 80 lbs /A when the data were combined for all planting dates.
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42

Esberg, Camilla. "Phosphorus availability and microbial respiration across biomes from plantation forest to tundra /." Doctoral thesis, Umeå : Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-33732.

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43

Barczys, Cathleen. "THE EFFECT OF AUDIBLE SOUND FREQUENCY ON THE GROWTH RATE OF YOUNG WHEAT PLANTS." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275379.

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44

Saad, Mysa. "Characteristics of Cardiorespiratory Function During Sleep Related to Depression and Antidepressant Medication Use." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39417.

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Through a series of original research articles, this thesis explores the characteristics of autonomic cardiac regulation and respiratory function during sleep in association with depression and antidepressant medication use and validates a novel diagnostic biomarker of depression. Cardiorespiratory dysfunction during sleep may contribute to the increased risk of developing cardiovascular disease amongst individuals with depression. Sleep represents a unique physiological state shielded from many external confounding factors and may be a more relevant window to observe the effects of depression
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45

Haghighi, Maryam, and Mohammad Pessarakli. "Copper and zinc uptake by celery plants grown on acidic soil amended with biosolids." Taylor & Francis, 2015. http://hdl.handle.net/10150/615105.

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For trace elements, such as copper (Cu) and zinc (Zn), the bioavailability of these elements, Cu and Zn, in biosolids is important because both are essential elements and both are potential contaminants when biosolids are land applied. A greenhouse study was conducted in factorial experiment based on a completely randomized design (CRD) with four replications on a soil treated with four rates of Cu (0, 50, 100, and 150 mg/kg) and four rates of Zn (0, 150, 300, and 450 mg/kg) on celery plants to investigate the distribution and mobility of these elements as well as growth and antioxidant change
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46

Kambaj, Kambol Oliver. "In situ and ex situ soil respiration in natural, Acacia-invaded and cleared riparian ecotones in the Fynbos Biome." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/79854.

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Thesis (MScConEcol)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Soil respiration (Rs) is a major component of CO2 emissions and the global carbon balance. In the context of global change it of interest to understand seasonal patterns of RS in fynbos riparian ecosystems, particularly in invaded-riparian ecotones of these Mediterranean type ecosystems (MTE's) in the Western Cape, South Africa. Riparian ecotones are three dimensional transitional zones that provide multiple ecosystem services and functions and they act as the linkage between terrestrial and aquatic ecosystems where key e
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47

Fennir, Mohamed A. "Respiratory response of healthy and diseased potatoes (Solanum tuberosum L.) under real and experimental storage conditions." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=38187.

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This study investigates respiration rate of potatoes (Solanum tuberosum L.) under real and experimental storage conditions. Real storage conditions were obtained by building a small-scale storage facility equipped with two independent storage bins including all controls. Each bin was filled with 2.5 metric tons of potatoes and these were stored for five months. Temperature, relative humidity, air flowrate and other operational parameters were collected. Also, mass loss and CO2 analyses were performed.<br>A heat and moisture balance was applied to quantify heat and moisture rates produced by po
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48

Ramula, Satu. "Population viability analysis for plants : practical recommendations and applications." Doctoral thesis, Stockholm : Department of Botany, Stockholm University, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-845.

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49

Kornfeld, Ari. "The Role of Alternative Oxidase (AOX) in Plant Stress: do Plants Increase the Activity of AOX in Response to Nutrient Stress Under Field Conditions?" Thesis, University of Canterbury. School of Biological Sciences, 2012. http://hdl.handle.net/10092/7009.

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RATIONALE: Recent studies indicate that plants can partition electron transport through alternative oxidase (AOX) and cytochrome c oxidase (COX) in response to environmental cues, thus modulating respiratory efficiency. The ¹⁸O discrimination method necessary for measuring electron partitioning in vivo, however, has been restricted to laboratory settings due to equipment constraints. Since plants grown in more natural and variable environments may not respond as predicted by laboratory experiments, I developed a new field-compatible analytical method and then applied it to three ecophysiologic
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50

Tucker, Kenneth D. "Use of nitrous oxide as the terminal electron acceptor during growth and respiration of Bradyrhizobium Japonicum USDA 143." Thesis, Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/80111.

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Bradyrhizobium japonicum USDA 143 grew chemoorganotrophically when supplied with exogenous nitrous oxide as the terminal electron acceptor, or as the alternate terminal electron acceptor to nitrate under anoxic conditions. Cell growth and dissimilatory N₂O reduction were significantly inhibited by acetylene when either N₂O or N₂O plus nitrate served as terminal electron acceptor(s). Reduction of nitrous oxide accounted for 20% of the energy for cell growth in cultures supplied with nitrate as the terminal electron acceptor. Nitrous oxide was produced stoichiometrically in cultures supplied wit
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