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Дисертації з теми "Photosynthetic biomass"

Автор: Grafiati

Опубліковано: 9 вересня 2021

Оновлено: 29 липня 2025

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1

Shiach, Ian M., and Ian M. Shiach. "Intraspecific Variation of Aboveground Woody Biomass Increment in Hybrid Poplar at High Temperature." Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/624110.

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In the continental United States, mean surface air temperature is expected to increase by up to 5°C within 100 years. With hotter temperatures, leaf budbreak is expected to occur earlier in forests, and leaf area is expected to increase in locations where temperature is limiting. The response of plant photosynthesis to hotter temperatures is less certain; plant productivity could increase or decrease. Past studies have found intraspecific variation in the responses of forest tree productivity, phenology, canopy leaf area, and leaf isoprene emission to warming, which all influence carbon uptake

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2

Hindersin, Stefan Verfasser], and Dieter [Akademischer Betreuer] [Hanelt. "Photosynthetic efficiency of microalgae and optimization of biomass production in photobioreactors / Stefan Hindersin. Betreuer: Dieter Hanelt." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2013. http://d-nb.info/1032313196/34.

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3

Do, Thi Lien, Thi To Uyen Do, Thi Nhi Cong Le, Phuong Ha Hoang, and Thi Ngoc Mai Cung. "Optimization production conditions of photosynthetic purple bacteria biomass at pilot scale to remove sulphide from aquaculture pond." Technische Universität Dresden, 2018. https://tud.qucosa.de/id/qucosa%3A32725.

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For the purpose of sulphide removal in aquaculture ponds, three strains (name: TH21, QN71, QN51) were isolated and selected with the highest sulphide removal activity from Thanh Hoa and Quang Ninh coastal zones. These strains have identified and tested in a number of aquaculture ponds in different areas with good water quality results. With the objective of purple non sulfur bacteria biomass production containing 3 selected strains for wide application and suitable price for farmers, in this study, we study on optimum conditions of mixed purple non sulfur bacteria biomass production at pilot s

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4

Carne, Demelza Jane. "A comparison of carbon sequestration potential and photosynthetic efficiency in evergreen and deciduous oaks growing in contrasting environments in the Southwest UK." Thesis, University of Plymouth, 2013. http://hdl.handle.net/10026.1/1598.

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Global climate change is predicted to alter the weather patterns around the world, as climatic zones shift, forest carbon sequestration projects (e.g. the UK woodland carbon code) need to take into account the specific requirements of planted species. In the UK, oaks are an important charismatic group of trees favoured in recent planting programmes. The English oak (Quercus robur L.), has poor water conservation, but is a major component of natural forests in lowland UK. On the other hand, Holm oak (Quercus ilex L.) is a Mediterranean oak that has high water conservation and can also tolerate

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5

Keys, Matthew. "Effect of future CO2 and temperature regimes on phytoplankton community composition, biomass and photosynthetic rates in the western English Channel." Thesis, University of Essex, 2018. http://repository.essex.ac.uk/23601/.

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CO2 storage in the oceans is strongly affected by biological processes. Production of organic matter through phytoplankton photosynthesis drives CO2 sequestration, which feeds back to atmospheric CO2 and global climate. The ongoing increase in atmospheric CO2 and temperature is strongly associated with changes in ocean chemistry and increasing seawater temperatures. To investigate these impacts on coastal phytoplankton under conditions predicted for the year 2100 (pCO2 elevated to 800 μatm and +4 °C temperature), three factorial experiments were conducted with natural communities sampled from

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6

Miller, Ana Zélia. "Primary bioreceptivity of limestones from the mediterranean basin to phototrophic microorganisms." Doctoral thesis, Faculdade de Ciências e Tecnologia, 2010. http://hdl.handle.net/10362/3961.

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Dissertação apresentada para a obtenção do grau de Doutor em Conservação e Restauro pela Universidade Nova de Lisboa, Faculdade de Ciências e Tecnologia<br>The conservation of historic buildings and monuments from cultural heritage is a major issue in modern societies, both from an economical and cultural point of view. The wide distribution of stone monuments and lithic works of art, and their cultural, artistic and religious importance emphasise the general need to safeguard this praiseworthy cultural heritage. This PhD thesis arises from the growing national and international interes

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7

Afonso, Marcelo Vielmo. "TECNOLOGIA DE SEMENTES E PARÂMETROS MORFOFISIOLÓGICOS NA PROPAGAÇÃO DE Tabernaemontana catharinensis A. DC. (APOCYNACEAE)." Universidade Federal de Santa Maria, 2016. http://repositorio.ufsm.br/handle/1/4901.

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Tabernaemontana catharinensis, popularly known as cobrina, is a native tree, which belongs to the family Apocynaceae. This species is suitable for reforestation, it is rich in phytochemicals compounds and it is used in folk medicine in the form of tea or infusion of its leaves and barks. Impacts of the indiscriminate extraction of seeds and vegetative parts of native species have increased in recent years, being the cultivation of plants on a large scale in a sustainable manner one of the challenges for production - without compromising natural resources. However many species still lack ecolog

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8

Langanke, Kristen L. "Response to Nitrogen and Salinity conditions in Rhizophora mangle Seedlings Varies by Site of Origin." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/7048.

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Many coastal plant species thrive across a range of environmental conditions, often displaying dramatic phenotypic variation in response to environmental variation. We characterized the response of the critical foundation species Rhizophora mangle L. to full factorial combinations of salt and nitrogen (N). We used seedlings collected from five populations and measured traits related to salt tolerance and N amendment. The response to increasing salt included significant plasticity in succulence, leaf mass area (LMA), and root to shoot ratio (R:S). Seedlings also showed overa

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9

Ancona, Cintia Maria. "Aspectos da variação espacial e temporal da biomassa e produção fitoplanctônica e parâmetros correlatos no estuário e baía de Santos." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/21/21131/tde-19062008-105620/.

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No intuito de identificar as relações entre as variações espaciais e temporais da biomassa e produção primária fitoplanctônica frente às variáveis físicas e químicas da coluna de água, foram realizadas coletas mensais de parâmetros físicos, químicos (nutrientes inorgânicos), séston e biomassa fitoplanctônica em 4 estações oceanográficas localizadas na baía e 3 no canal de Santos no período entre novembro de 2004 a dezembro de 2005. O transporte de propriedades entre os canais estuarinos e a baía foi estimado através de medidas realizadas em estações fixas, nas entradas dos canais de Santos e S

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10

Daymond, Andrew James. "An investigation into physiological parameters underlying yield variation between different varieties of cocoa (Theobroma cacao L.)." Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325213.

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11

Beale, C. V. "Analysis of the radiation-, nutrient- and water-use efficiencies of the potential energy crops Miscanthus x giganteous and Spartina cynosuroides, grown under field conditions in S.E.England." Thesis, University of Essex, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361035.

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12

Carver, Paul Adrian. "The effect of microclimate upon the growth, photosynthesis and productivity of 'Miscanthus x' giganteus at contrasting planting densities." Thesis, University of Wolverhampton, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323092.

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13

Catuchi, Tiago Aranda. "Respostas fisiológicas da soja à adubação potássica sob dois regimes hídricos." Universidade do Oeste Paulista, 2012. http://bdtd.unoeste.br:8080/tede/handle/tede/391.

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Made available in DSpace on 2016-01-26T18:56:23Z (GMT). No. of bitstreams: 1 Dissertacao.pdf: 561254 bytes, checksum: 6fe1c6021f8ba849b15380f02e4a3762 (MD5) Previous issue date: 2012-02-06<br>Water deficit is one of the main factors limiting agricultural production worldwide, affecting many physiological processes in plants. Based on this context, the study aimed to evaluate the interference of potassium fertilization on physiological responses of two soybean cultivars developed under water deficit, and assess the level of tolerance to water stress among cultivars. For this we tested the fol

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14

Petrucci, Oscar. "Ferritin-Based Photo-Oxidation of Biomass for Nanoparticle Synthesis, Bioremediation, and Hydrogen Evolution." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/4308.

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The cell is the basic unit of all living organisms. It is an amazing machine capable of self-replicating, growing, and synthesizing and shuttling thousands of compounds. To perform all of these activities the cell needs energy. The original source of energy for all living beings is the Sun. The energy of the sun is collected by the autotrophs (mostly plants) through photosynthesis and stored in the chemical bonds of carbohydrates and lipids through carboxylic acid intermediates; animals use these compounds to obtain the energy for their cells. Most of the energy extracted by the cell comes fro

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15

Contin, Daniele Ribeiro. "Alterações anatômicas e fisiológicas em plantas de Mikania glomerata Sprengel e Mikania laevigata Schultz Bip. ex Baker, sob diferentes condições luminosas e nutricionais." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/59/59139/tde-10072013-115819/.

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Plantas medicinais (fitoterápicos) têm uma longa história nos tratamentos de várias desordens de saúde. Nos últimos anos, por suas propriedades medicinais, o interesse no uso de Mikania, um gênero da família Asteraceae, como alternativa ou terapia complementar tem crescido notavelmente. Especificamente, duas espécies de Mikania, M. glomerata e M. laevigata, amplamente conhecidas como \"guaco\" são utilizados para tratar febre, asma, bronquite e outras doenças respiratórias, devido ao seu teor de cumarina, o principal componente desta planta. No entanto, devido à excessiva exploração humana, es

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16

Morrision, John Ruairidh. "Variability of natural fluorescence and its applicability to phytoplankton biomass and photosynthesis prediction : in situ evidence of quenching mechanisms." Thesis, Bangor University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285486.

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17

Mitchell, Jackson Lee Bean. "Cool Temperature Effects on Productivity and Photosynthesis of Two Biomass Fuel Species: Switchgrass (Panicum virgatum) and Miscanthus (Miscanthus x giganteus)." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/19246.

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The world\'s highest yielding crops are C4 plants due to their higher water use efficiency, nitrogen use efficiency, and productivity compared with C3 plants. With an increasing demand for renewable resources as a result of the decreasing global supplies of fossil fuels, we need to improve our understanding of the limitations of biomass fuel feedstock to improve yields and better satisfy energy requirements. The ability to attain the goal feedstock production in the US is limited by available arable land and cool temperatures. This study investigates the effects of cool temperatures on the

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18

Chaves, Adilson de Jesus. "Cultivo de Chlorella sp. em fotobiorreatores enriquecidos com CO2 e avaliação da biomassa para produção de biocombustíveis." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-28032017-143138/.

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A busca por fontes de energia renovável acontece em ritmo crescente em função do superaquecimento da Terra e mudanças climáticas causadas, especialmente, pela emissão de CO2. Entre as possibilidades de obter-se energia renovável, os biocombustíveis produzidos a partir do cultivo de microalgas apresentam-se como alternativa potencial. Microalgas podem alcançar altas taxas de produção a partir do consumo de energia luminosa, assimilação de nutrientes e biofixação de CO2 e sua biomassa pode dar origem a bioetanol, biogás, biodiesel e a outros bioprodutos de interesse biotecnológico. Visando avali

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19

Kasap, Hatice. "Carbon nitride for solar H2 production coupled to organic chemical transformations." Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/289454.

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Artificial photosynthesis utilises solar-light for clean fuel H2 production and is emerging as a potential solution for renewable energy generation. Photocatalytic systems that combine a light harvester and catalysts in one-pot reactor are promising strategies towards this direction. Yet, most of the reported systems function by consuming excess amount of expensive sacrificial reagents, preventing commercial development. In this thesis, carbon nitrides (CNx) have been selected as non-toxic, stable and low-cost photocatalysts. CNx are first introduced as efficient light harvesters, to couple al

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20

Nightingale, Leigh. "The toxic effect of heavy metals on algal biomass (Spirulina sp.) and carbonic anhydrase activity, an enzyme which is central to algal application in metal precipitation." Thesis, Rhodes University, 2004. http://hdl.handle.net/10962/d1007858.

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Acid rmne drainage (AMD) is a major pollution problem througbout the world, adversely affecting both surface and groundwaters. AMD is principally associated with the mining of sulphide ores. The most commonly associated minerals being sulphur, copper, zinc, silver, gold, lead and uranium. As conventional methods for removing heavy metals from wastewater are often prohibitively expensive, the implementation of biological processes for the removal of heavy metals has become a realistic practice. The objectives of this project was firstly to establish the effect of copper, lead and nickel, heavy

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21

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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22

Vadlamani, Agasteswar. "Enhanced Biomass and Lipid Productivities of Outdoor Alkaliphilic Microalgae Cultures through Increased Media Alkalinity." University of Toledo / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1481307126330107.

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23

Campos, Aline Grella de. "Avaliação do estado nutricional, taxa fotossintética e produção de biomassa do sorgo sacarino submetido a combinações de doses de nitrogênio e potássio." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/64/64133/tde-31032016-101716/.

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O crescimento da população mundial promove o aumento por consumo de alimentos e energia, além da necessidade de uso sustentável dos recursos naturais, a planta sorgo sacarino tem demonstrado eficiência na absorção e consumo de nutrientes fornecendo matérias-primas importantes como celulose, etanol, bioetanol e alimentos na forma de açúcares e farinhas. Porém, informações quanto à exigência nutricional e a adubação de sorgo sacarino são escassas. Sendo o N e o K os nutrientes mais exigidos por esta espécie, desenvolveu-se estudo aplicando combinações de doses de N e K na solução fornecida para

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24

Tripathee, Rajan. "Effect of CO2 on the response of C and N relations to a heat wave in sunflower and corn." University of Toledo / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1218558510.

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25

Lindeque, Susan. "Influence of SO2 fumigation on growth, photosynthesis, lipoxygenase and peroxidase activities of soybean (Glycine max), in open-top chambers / Susan Lindeque." Thesis, North-West University, 2012. http://hdl.handle.net/10394/8716.

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Air pollutant exposure poses a health risk to humans and impacts negatively on agriculture. High levels of air pollution resulted in extensive crop damage and yield reduction in Europe and USA. The Highveld region in South Africa, a very important area for maize and soya production, has already been declared an air pollution hot spot, with SO2 being the most concerning air pollutant. Most of the SO2 over the Highveld originates from the burning of coal for power generation. Developing countries, such as South Africa, are highly dependent on agriculture for food security and high levels of air

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26

Lieurance, Deah M. "Leaf Phenology, Fecundity, and Biomass Allocation of the Invasive Shrub Lonicera maackii (Rupr.) Maxim in Contrasting Light Environments." Ohio University / OhioLINK, 2004. http://www.ohiolink.edu/etd/view.cgi?ohiou1108143238.

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27

Silva, Paulo Eduardo de Menezes. "Diversidade funcional da partição de biomassa, ganho de carbono e do uso da água em Coffea canephora, em resposta à disponibilidade hídrica." Universidade Federal de Viçosa, 2010. http://locus.ufv.br/handle/123456789/4329.

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Made available in DSpace on 2015-03-26T13:36:43Z (GMT). No. of bitstreams: 1 texto completo.pdf: 937113 bytes, checksum: 1ebb4d9a4a9691011fdc11ff9e9519bd (MD5) Previous issue date: 2010-07-28<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The functional divergence associated with biomass partitioning, carbon gain and water use was studied in 10 clones of Coffea canephora. Seedlings, raised as rooted stem cuttings, with four leaf pairs were grown under full sunlight in 24 dm3 pots. When 8 months old, the plants were submitted to varying irrigation treatments: a group of pla

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28

Peraudeau, Sébastien. "Réponses de la respiration à l'augmentation de la température nocturne chez le riz : production de biomasse et de grains et conséquences pour les modèles de culture." Thesis, Montpellier 2, 2014. http://www.theses.fr/2014MON20106/document.

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Sous un climat tropical humide, l'augmentation de la température nocturne a été associée à une diminution du rendement chez le riz. Une des hypothèses sous-tendant cette diminution est l'augmentation du taux de respiration nocturne (Rn) diminuant les ressources carbonées disponibles pour la croissance de la plante. La respiration mitochondriale est communément divisée en deux composantes fonctionnelles :- la respiration de maintenance (Rm), qui est associée à toutes les réactions biochimiques requises pour entretenir la biomasse existante. Le taux de Rm doublerait suite à une augmentation de l

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29

Barros, Timóteo Herculino da Silva. "Eficiência do uso da água em cana-de-açúcar irrigada por gotejamento com base em medições de trocas gasosas IRGA: fotossíntese e transpiração." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/11/11152/tde-17092015-163001/.

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A cana-de-açúcar apresenta-se como umas das principais culturas do agronegócio no Brasil e está integrada à matriz energética nacional, servindo também como matéria prima para diversos produtos industrializados. Em virtude das alterações nos padrões de precipitação natural que está ocorrendo em várias regiões do mundo, observam-se perdas significativas de produtividade na cana-de-açúcar devido ao déficit hídrico no solo, sendo esse um dos principais entraves atuais para maximização e para produtividade desta cultura. A busca por variedades resistentes ao estresse hídrico nos programas de melho

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30

Araújo, Fabíola Ornellas de. "Avaliação do crescimento e composição de micro-organismos fotossintetizantes para uso como matéria-prima em fotoprotetor." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/9/9134/tde-25042016-153107/.

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O cultivo dos micro-organismos fotossintetizantes depende de alguns fatores primordiais, como a intensidade luminosa a ser empregada, a temperatura e a quantidade de nitrogênio fornecida ao reator. Extratos de micro-organismos, devido à ampla possibilidade que estes possuem de produzir compostos orgânicos, podem conter substâncias possíveis de serem utilizadas em formulações cosméticas capazes de proteger a pele contra os eventuais efeitos danosos das radiações UVA e UVB, as quais estão crescentes devido ao aumento na depleção da camada de ozônio atmosférico. Assim, esta pesquisa teve como obj

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31

Abadie, Cyril. "Exploration de la variabilité phénotypique d'Arabidopsis thaliana (L.) Heynh et caractérisation de l'effet d'un déficit hydrique sur la photosynthèse et le contenu glucidique foliaire des écotypes Col-0, Mt-0 et Shahdara." Thesis, Poitiers, 2012. http://www.theses.fr/2012POIT2280/document.

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Compte tenu des changements climatiques annoncés, les végétaux risquent d'être confrontés, dans un proche avenir, à des épisodes de sécheresse sévères de plus en plus fréquents. Afin de prédire l'impact de telles contraintes sur la productivité et le rendement des plantes cultivées, il convient d'étudier l'effet du manque d'eau sur l'activité photosynthétique, le transport et l'accumulation des sucres. Dans un premier temps, la croissance, le développement, la biomasse et la photosynthèse de huit écotypes d'Arabidopsis thaliana ont été caractérisés. Trois de ces écotypes (Col-0, Mt-0 et Shahda

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32

Akgul, Alper. "Performance of slash pine (Pinus elliottii Engelm.) containerized rooted cuttings and bare-root seedlings established on five planting dates in the flatlands of western Louisiana." Diss., Texas A&M University, 2003. http://hdl.handle.net/1969.1/2230.

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The forest product industry is keenly interested in extending the normal planting season, as well as in the comparative field performance of standard nursery bare-root seedlings and containerized rooted cuttings. The effect of seasonal planting dates on survival, above and belowground biomass allocation, water relations, gas exchange attributes and foliar carbon isotope composition (δ13C) of two stock types of slash pine (Pinus elliottii Engelm.) were examined. Slash pine bare-root seedlings (BRS) and containerized rooted cuttings (CRC) were hand planted in September, November, January, March

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33

Novaes, Paula. "Rustificação de plantas jovens de Coffea arabica L." Universidade Federal de São Carlos, 2007. https://repositorio.ufscar.br/handle/ufscar/1922.

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Made available in DSpace on 2016-06-02T19:31:38Z (GMT). No. of bitstreams: 1 1456.pdf: 806888 bytes, checksum: c1a017c0d739e9db5205b7784a9e4a47 (MD5) Previous issue date: 2007-06-06<br>Universidade Federal de Sao Carlos<br>Young plants of Coffea arabica grafted over C. canephora were submitted to six watering cycles (WC) during 35 days. Each WC was accomplished until net photosynthesis (PN) close to zero or leaf water potential (Ψ) close to -2.0 MPa in Acauã (AC), Mundo- Novo (MN), and Obatã (OB) cultivars. After 2 WC (about 10 days) gs dropped from 0.15 to 0.01 mol m-2 s-1 in all culti

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Creti, Christian. "Fermentation méthanique et désulfuration de gaz par voie bactérienne : proposition d'un bioréacteur de désulfuration, optimisation des deux opérations du procédé." Paris 6, 1986. http://www.theses.fr/1986PA066309.

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Conception et réalisation d'un pilote de laboratoire de 20 litres, garni de supports bactériens en PVC, en vue de produire du biogaz (avec des teneurs en H2s au moins égales à 0,3%. ) Emploi de déchets agro-alimentaires riches en sulfates. L'automatisation est réalisée en connectant des capteurs et des actionneurs à un ordinateur industriel. Le biogaz produit passe en continu et en ligne dans un bioréacteur de désulfuration en molécules organiques. Proposition d'un modèle intégrant les différentes vitesses de réaction. Perspectives de synthèse de molécules à haute valeur ajoutée.

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Dauchet, Jérémi. "Analyse radiative des photobioréacteurs." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2012. http://tel.archives-ouvertes.fr/tel-00914315.

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L'ingénierie de la photosynthèse est une voie prometteuse en vue de produire à la fois des vecteurs énergétiques et des molécules plateformes pour palier la raréfaction des ressources fossiles. Le défi à relever est de taille car il faut réussir à mettre au point des procédés solaires de production de biomasse à constante de temps courte (quelques jours), là où une centaine de millions d'années a été nécessaire à la formation du pétrole. Cet objectif pourrait être atteint en cultivant des micro-organismes photosynthétiques dans des photobioréacteurs dont les performances cinétiques en surface

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BASSI, NICCOLO'. "Energetic and economic assesment of a disposable panel reactor for Nannochloropsis sp. biomass production." Doctoral thesis, 2010. http://hdl.handle.net/2158/578899.

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Iwasaki, Kenji. "Algal bioproducts : investigating the effect of light quality on metabolite production by photosynthetic diatoms." Thesis, 2019. http://hdl.handle.net/10453/137125.

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University of Technology Sydney. Faculty of Science.<br>In Australia, between 2016 and 2017, aquaculture products made up 44% of Australian seafood product in value, reaching over $1.35 billion in production value. One of the top five profitable Australian aquaculture products during this period were edible oysters which is worth more than $112 million in production value. Oysters are fed with live microalgae (including diatoms) during the larval, juvenile and adult stages of growth, as are other shellfish, some crustaceans, shrimps/prawns and fish. The rearing of oysters and other aquacultur

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Hull, John Andrew. "Microstegium vimineum Spread Rate in Relation to Two Different Leaf Litter Disturbances and an Evaluation of Aboveground Biomass Accumulation and Photosynthetic Efficiency in Response to Four Light Treatments." 2010. http://trace.tennessee.edu/utk_gradthes/719.

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Microstegium vimineum is a non-native invasive plant species classified as an annual, shade-tolerant C4 grass. There is limited research regarding variables affecting the spread of M. vimineum. Two studies were conducted to investigate the spread of M. vimineum. A field study was undertaken in 2009 to determine how M. vimineum spreads in relation to litter disturbance. In 2010, a greenhouse study was conducted to determine the impact light has on M. vimineum aboveground biomass, height growth, and photosynthetic efficiency.The field study consisted of three treatments, Undisturbed (Control)

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"Microalgal Biofilms for Treatment of Domestic Wastewater and Resource Recovery." Master's thesis, 2016. http://hdl.handle.net/2286/R.I.38745.

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abstract: The application of microalgal biofilms in wastewater treatment has great advantages such as abolishing the need for energy intensive aerators and recovering nutrients as energy, thus reducing the energy requirement of wastewater treatment several-fold. A 162 cm2 algal biofilm reactor with good wastewater treatment performance and a regular harvesting procedure was studied at lab scale to gain an understanding of effectual parameters such as hydraulic retention time (HRT; 2.6 and 1.3 hrs), liquid level (LL; 0.5 and 1.0 cm), and solids retention time (SRT; 3 and 1.5 wks). A revised syn

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Kok, Heinrich Wilfrid. "A thermodynamic analysis of photosynthesis: Quantum requirement and theoretical biomass growth rates." Thesis, 2012. http://hdl.handle.net/10539/11314.

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Interest in photosynthesis continues to increase with a global focus on developing alternative fuel sources such as biofuels. It is the various forms of biomass that provide the raw materials for the production of biofuels such as bioethanol and biodiesel. The vast majority of these materials are grown by the photosynthesis process. Developing a mathematical model of the process allows for a clearer understanding of what limits and propels the process, and what this reaction might be capable of in terms of biomass growth on an industrial scale. The primary driving force of photosynthesi

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Berteotti, Silvia. "Non-Photochemical Quenching (NPQ) and biomass production in microalgae." Doctoral thesis, 2015. http://hdl.handle.net/11562/915793.

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La fotosintesi è il principale sistema di conversione dell’energia luminosa sul nostro pianeta. In tutti gli organismi fotosintetici come piante, alghe e cianobatteri, la fotosintesi si svolge nelle membrane tilacoidi dei cloroplasti, e permette di convertire l'energia solare in energia chimica, utilizzata per trasformare l'anidride carbonica in biomassa, producendo ossigeno come sottoprodotto. L'energia luminosa può essere anche dannosa, se in eccesso può determinare le sovraeccitazione dei fotosistemi, e la conseguente produzione di specie reattive dell'ossigeno (ROS), molecole tossiche che

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Pross, Derek D. "A global scale analysis of the spatiotemporal distribution of foliar biomass for 1988." Thesis, 1991. http://hdl.handle.net/1957/37239.

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Many ecological systems follow a seasonal cycle affecting primary production, carbon flux, and vegetative gas emissions. The seasonal variation of ecological systems are both affected by and have effects upon climatic factors. A quantitative estimate of the seasonal variation of vegetation is required to characterize ecological systems and their interaction with climate. Monitoring the spaliotemporal variation of foliar biomass density (FBD) over one year will provide a quantitative estimate of the annual cycle and regional variation of photosynthetic activity. FBD is a quantitative measure of

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Alley, Heather. "Experimental reintroduction of the endangered Echinacea laevigata : comparison of planting methods and effects of light intensity on biomass and photosynthesis." 2002. http://purl.galileo.usg.edu/uga%5Fetd/alley%5Fheather%5Fj%5F200205%5Fms.

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Murphy, Thomas Eugene. "Radiant and thermal energy transport in planktonic and benthic algae systems for sustainable biofuel production." Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-05-2756.

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Biofuel production from microalgal biomass offers a clean and sustainable liquid fuel alternative to fossil fuels. In addition, algae cultivation is advantageous over traditional biofuel feedstocks as (i) it does not compete with food production, (ii) it potentially has a much greater areal productivity, (iii) it does not require arable land, and (iv) it can use marginal sources of water not suitable for irrigation or drinking. However, current algae cultivation technologies suffer from (i) low solar energy conversion effiencies, (ii) large thermal fluctuations which negatively affect the prod

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Malele, Kgetise Petros. "Genotypic variation in water use efficiency, gaseous exchange and yield of four cassava landraces grown under rainfed conditions in South Africa." Diss., 2020. http://hdl.handle.net/11602/1630.

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MSCAGR (Plant Production)<br>Department of Plant Production<br>Agricultural production under rain-fed conditions is largely dependent on the availability of water stored in the soil during rainfall events. The production of cassava (Manihot esculenta Crantz) under rain-fed conditions in the north-eastern part of South Africa is constrained by low and erratic rainfall events. Improving cassava production in the area requires the use of cassava varieties which are efficient in the use of limited soil moisture. The current climate change and increasing population growth on the planet will place m

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Moxley, Donovan J. "Interactive Effects of Elevated CO2 and Salinity on Three Common Grass Species." 2013. http://hdl.handle.net/1805/3428.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Carbon dioxide (CO2) level in the atmosphere has increased steadily since Pre-Industrial times. The need for a better understanding of the effects of elevated CO2 on plant physiology and growth is clear. Previous studies have focused on how plants are affected by either elevated CO2 or salinity, one of many environmental stresses for plants. However, little research has been focused on the interaction of these two factors. In my project, three common grass species were exposed to both elevated CO2 and salinity, so that the effects of

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Cinibulková, Renata. "Matematické modely vlivu vybraných faktorů na rychlost fotosyntézy pro střední odborné školy a gymnázia." Master's thesis, 2010. http://www.nusl.cz/ntk/nusl-296665.

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The goal of this Master thesis was development of teaching materials that are focusing on mastering the fundamentals of mathematical modelling on the examples of photosynthetic processes and influence of selected environmental factors on these processes. Developed models of photosynthetic response to select environmental factors, worksheets, methodical manuals and other supporting materials belong to the teaching materials for secondary schools and serve as a basis of work with models. This teaching materials are aimed to introduce modelling and its significance not only in science but also in

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Máhrlová, Zuzana. "Vliv teploty na růst rostlin: výukové protokoly modelových pokusů." Master's thesis, 2015. http://www.nusl.cz/ntk/nusl-337132.

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This diploma thesis is focused on the creation of model tasks (by means of an experiment) for the study of biology at secondary schools and concerns the effects of temperature on plant growth. The selected tasks utilize the new didactic approach by means of the so called inquiry based education. This method of teaching contributes to the development of individual deduction reasoning and encourages the students to actively think about the subject matter. The thesis provides the necessary theoretical background for the topic together with the description of methods and material needed for the co

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FORMIGHIERI, Cinzia. "Regulating light use efficiency by genetic engineering of Chlamydomonas reinhardtii." Doctoral thesis, 2012. http://hdl.handle.net/11562/392922.

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Le alghe sono definite organismi fotosintetici ossigenici, procarioti o eucarioti, con un’organizzazione da unicellulare a pluricellulare, che non sviluppano foglie o radici giustificando la classificazione di ‘piante inferiori’. Le alghe presentano diverse potenziali applicazioni commerciali, come la produzione di biomassa per l’alimentazione umana/animale o per essere usata come fertilizzante, l’estrazione di molecole ad elevato valore aggiunto con un mercato nell’industria chimica o farmaceutica, infine, anche se ancora lontano dalla commercializzazione, la produzione di bio-combustibili. F

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Unger, Malte Arne. "Relationships between soil chemical properties and forest structure, productivity and floristic diversity along an altitudinal transect of moist tropical forest in Amazonia, Ecuador." Doctoral thesis, 2010. http://hdl.handle.net/11858/00-1735-0000-0006-ADA3-B.

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