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Rozprawy doktorskie na temat „Yield attributes and yield”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Ordóñez, Raziel Antonio. "Response of yield and physiological attributes to nitrogen availability and heat in maize." Doctoral thesis, Universitat de Lleida, 2014. http://hdl.handle.net/10803/314179.

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Crop production must be increased substantially in the near future to maintain the present balance with food demand. As a large increase in growing area seems unthinkable, we must further increase crop yields significantly. Climate model projections suggest that higher temperatures will become commonplace in most regions where grain crops are produced, and deleterious effects of high temperature on crop yields are well documented. In this context, it is critical identifying genetic and management tools to mitigate the effect of high temperatures on yield. Nitrogen (N) fertilisation is one of t

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Rethwisch, Michael D., Bill Baldwin, Joan Baldwin, Danny Leivas, and Michael Kruse. "Three Year Summary of Yield, Weed Infestation and Other Attributes of Five Alfalfa Varieties Planted October 1994 on the Colorado River Indian Tribes Reservation." College of Agriculture, University of Arizona (Tucson, AZ), 1998. http://hdl.handle.net/10150/208249.

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Five alfalfa varieties (CUF 101, SW 14, SW8210, Pioneer 5888, and a grower selection originating from CUF 101 and noted as Baldwin Select) that were planted in October, 1994, into large plots (0.75 acres) to obtain actual field harvest data production during the years of 1995-1997. Varietal hay yields were very similar in 1995 until mid summer, when area soil temperatures reached above 100°F at the four inch depth for a period of about 6 weeks. During the summer months Baldwin Select had significantly higher yields than other varieties tested. Statistical differences in accumulated hay yields

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Xu, Su. "Impact of agro-forestry systems on coffee yield, coffee plant morphology, physical and chemical attributes of green coffee beans and aroma generation of roasted coffee beans." Thesis, University of Nottingham, 2017. http://eprints.nottingham.ac.uk/48086/.

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A long experiment has been established since 2000 at CATIE (Tropical Agricultural Research and Higher Education Center), Turrialba, Costa Rica. Twenty agro-forestry systems with different shade types and managements (organic and non-organic) consisting of an incomplete randomized block-design with shade tree as main effect and subplots represented by management were set up. The mean 13-year yield, bienniality index (BI) of coffee yield, pruning, shade cover and morphology (height, diameter, total branches and productive branches) of coffee plants in these agro-forestry systems were measured. T

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Guedes, Júnior Francisco de Assis. "Gesso agrícola: efeitos no crescimento radicular e no rendimento de grãos da soja." Universidade Estadual do Oeste do Paraná, 2017. http://tede.unioeste.br/handle/tede/3496.

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Submitted by Edineia Teixeira (edineia.teixeira@unioeste.br) on 2018-03-08T16:48:51Z No. of bitstreams: 2 Francisco_Guedes Junior2017.pdf: 1318457 bytes, checksum: 26ff578276db358f4f8a4282b249498e (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made available in DSpace on 2018-03-08T16:48:51Z (GMT). No. of bitstreams: 2 Francisco_Guedes Junior2017.pdf: 1318457 bytes, checksum: 26ff578276db358f4f8a4282b249498e (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-02-10<br>Coordenação de Aperfeiçoamento de Pessoal

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Guth, Paulo Luis. "Perdas de solo e água por erosão hídrica em sistemas de culturas oleaginosas." Universidade Federal de Santa Maria, 2010. http://repositorio.ufsm.br/handle/1/5508.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The sustainability of vegetable oils production is in the dependence of the agricultural practices, being the erosion the most preoccupying form of soil degradation. In this way, was carried out a study in the UFSM campus, city of Santa Maria, between October of 2007 and October of 2009, with the objective to evaluate the soil and water losses by water erosion in systems of rotation of oleaginous crops and covering plants. The region climate is "Cfa" type, with 1686 mm annual medium precipitation. The soil with steepness of 6.5% is

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Zuehlke, Karl William. "Yield." College Park, Md.: University of Maryland, 2009. http://hdl.handle.net/1903/9339.

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Thesis (M.F.A.) -- University of Maryland, College Park, 2009.<br>Thesis research directed by: Dept. of English. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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Domingues, Rafael. "ATRIBUTOS FÍSICOS DO SOLO, REGIME HÍDRICO E RESPOSTA BIOLÓGICA DO FEIJOEIRO (Phaseolus vulgaris L.) SOB AMBIENTE PROTEGIDO." UNIVERSIDADE ESTADUAL DE PONTA GROSSA, 2016. http://tede2.uepg.br/jspui/handle/prefix/2300.

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Made available in DSpace on 2017-07-25T19:31:02Z (GMT). No. of bitstreams: 1 Rafael Domingues.pdf: 1944110 bytes, checksum: 7638fdb990833f4a6835d8f8c199e4d4 (MD5) Previous issue date: 2016-11-22<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Crop yield is affected by the environmental conditions under which plants grow and develop. Water is the main factor to be controlled under protected environments aiming at maximization of yield and grade of agricultural products. The productive potential of a crop is extremely conditioned by the local atmospheric conditions along with

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8

Christensen, Justin. "Electron Yield Measurements of High-Yield, Low-Conductivity Dielectric Materials." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/6694.

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Materials exposed to the space plasma environment acquire electric charge, which can have harmful effects if it leads to arcing or electrostatic breakdown of important spacecraft components. In fact, spacecraft charging is the leading environmentally induced cause of spacecraft anomalies. This study focuses on measuring electron yield, a property of materials that describes how many electrons are ejected from a material under energetic electron bombardment, which can vary depending on the energy of incident electrons. Intrinsic electron yield is defined as the average number of electrons emitt

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9

German, Guy. "Yield-stress drops." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/3792.

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The behaviour of viscoplastic drops during formation and detachment from a capillary nozzle, free-fall, impact on a solid substrate and subsequent spreading are investigated experimentally by high-speed imaging. Drop dynamic behaviour is an integral component of many contemporary industrial processes ranging from fuelinjection systems in combustion engines to spray coating, agrochemical and pharmaceutical delivery, fire extinguishment and ink-jet printing. Yield-stress fluids are commonly used nowadays in products ranging from mayonnaise to hair-gel. It is hoped that through understanding the

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10

Antas, Vilém. "Yield Curve Constructions." Master's thesis, Vysoká škola ekonomická v Praze, 2016. http://www.nusl.cz/ntk/nusl-264627.

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The goal of this thesis is to analyze the mathematical apparatus of the most widespread methods used for the yield curves construction. It aims to introduce not only the various of construction models but also to describe the whole process of creation, while discussing the advantages and disadvantage of individual methods. The first chapter focus on the general theory and the use of the term structure of interest rates in practice. The second part deals with the construction process itself and describes the most frequently used methods. The last chapter then shows the real application of selec

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11

Cooney, Mackenzie C. "Yield-Curve Momentum." Scholarship @ Claremont, 2019. https://scholarship.claremont.edu/cmc_theses/2244.

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It has been twelve years since the last time the yield curve was inverted. Since 2017, the yield curve has been continuing to flatten and has almost entered an inverted state. The last five recessions have been preceded by the inversion of the yield curve. I examine momentum trading strategy’s ability to outperform during an inverted yield curve state. The yield curve can enter the momentum portfolio strategy through the portfolio’s formation and holding period. I document the increased performance of the momentum strategy’s total portfolio return in an inverted state. These results have impli

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12

Pinto, Marília Alves Brito. "Irrigação por aspersão em arroz em função da tensão de água no solo." Universidade Federal de Pelotas, 2015. http://repositorio.ufpel.edu.br:8080/handle/prefix/3068.

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Submitted by Gabriela Lopes (gmachadolopesufpel@gmail.com) on 2016-09-28T13:10:22Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Tese Marília Alves Brito Pinto.pdf: 1580274 bytes, checksum: f49c34622d89738c2e2971942684bec8 (MD5)<br>Approved for entry into archive by Aline Batista (alinehb.ufpel@gmail.com) on 2016-09-28T18:46:46Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Tese Marília Alves Brito Pinto.pdf: 1580274 bytes, checksum: f49c34622d89738c2e2971942684bec8 (MD5)<br>Made available in DSpa

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13

Li, Dandan. "SOYBEAN QTL FOR YIELD AND YIELD COMPONENTS ASSOCIATED WITH GLYCINE SOJA ALLELES." UKnowledge, 2006. http://uknowledge.uky.edu/gradschool_diss/331.

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USA soybean germplasm has a narrow genetic base that could be augmented by alleles from the wild species Glycine soja which positively influence agronomic traits. The objective of this study was to identify such alleles for yield and yield component QTL (quantitative trait loci). Two populations of 150 BC2F4 lines were generated from a mating between recurrent parent Glycine max 7499 and donor parent Glycine soja PI 245331 with one line in each population tracing back to the same BC2 plant. Population A was used for the QTL identification analysis and population B was used for the QTL verifica

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14

Mills, Robert William. "Fission product yield evaluation." Thesis, University of Birmingham, 1995. http://etheses.bham.ac.uk//id/eprint/4353/.

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A new evaluation has been made of the independent and cumulative yields of fission products for a selection of fissioning systems, including fission of nuclides important for reactor design and operation, and for fuel and waste management. The evaluation, which has been given the reference name UKFY3, used a new database of measurements and is considered complete up to early 1993. This database considerably extends and updates the database used for the previous UKFY2 evaluation. The measurement database was analysed to produce a “best estimate” set of fission product yields. Careful study has

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15

Abrahams, Michael (Michael G. ). "Estimating yield curve noise." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/118001.

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Thesis: S.M. in Management Research, Massachusetts Institute of Technology, Sloan School of Management, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 27-29).<br>In this paper, I explore methods for estimating noise in the yield curve. I evaluate optimization methods for fitting yield curves using the Nelson-Siegel model where recommendations in the literature remain unclear. I provide open source code on Github including contributions to the QuantLib C++ financial library.<br>by Michael Abrahams.<br>S.M. in Management Research

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16

Bilhastre, Ângela Germano. "Fitting the yield curve." Master's thesis, NSBE - UNL, 2009. http://hdl.handle.net/10362/9456.

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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA – School of Business and Economics<br>This paper is concerned with the fitting of the yield curve in order to achieve a continuous term structure of interest rates by applying two methods: the cubic polynomial spline by McCulloch (1975), and the Nelson-Siegel-Svensson (1994). Subsequently, a trading model is used to make sensitivity analysis decisions on whether to buy or sell a bond (reach/cheap analysis). Finally, with the purpose of forecasting future yields, out-of-sam

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17

Iebesh, Abdulhamid. "Interpolation of Yield curves." Thesis, Mälardalens högskola, Akademin för utbildning, kultur och kommunikation, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-48968.

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In this thesis we survey several interpolation methods that are used to construct the yield curves. We also review the bootstrapping and show that the bootstrap is closely connected to the interpolation in the case of bootstrapping yield curve. The most effort is dedicated, in this thesis, on the monotone convex method and on investigation of the difficulties to get accurate yield curves.

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18

Siegfried, Cary Ann. ""Failure to Yield": Essays." Thesis, University of North Texas, 2017. https://digital.library.unt.edu/ark:/67531/metadc1062910/.

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Failure to Yield is a collection of creative nonfiction that explores themes of presence and emotional connection and expression. The seven essays, which include three flash essays, explore the themes by reflecting on such topics as marriage, parent-child relationships and addiction. The collection is woven together by the author's relationships with her parents and children and by her experiences growing up in a small town in Iowa.

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19

Dobiáš, Vladimír. "Arbitrage-Free Yield Curve." Doctoral thesis, Vysoká škola ekonomická v Praze, 2003. http://www.nusl.cz/ntk/nusl-77145.

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We address the issue of market incompleteness in the time dimension. Specifically, we focus on interest rate markets and the yield curve extraction. The lack of information about interest rates manifest itself in a non-invertible linear system. The usual approach to circumvent this problem is by applying various curve fitting methods - both parametric and non-parametric. We argue in favor of a novel method relying on information theory, which reformulates the ill-posed linear algebra problem into a well-posed optimization problem, where the linear pricing equations are used as constraints. Loc

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20

LO, CONTE RICCARDO. "Government Bond Yield Spreads." Doctoral thesis, Università Cattolica del Sacro Cuore, 2009. http://hdl.handle.net/10280/639.

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Il presente lavoro raccoglie 4 contributi sul tema dei differenziali sui tassi di interesse esistenti tra i membri dell'unione monetaria europea.<br>I investigate the determinants of sovereign yield spreads in EMU.

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LO, CONTE RICCARDO. "Government Bond Yield Spreads." Doctoral thesis, Università Cattolica del Sacro Cuore, 2009. http://hdl.handle.net/10280/639.

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Il presente lavoro raccoglie 4 contributi sul tema dei differenziali sui tassi di interesse esistenti tra i membri dell'unione monetaria europea.<br>I investigate the determinants of sovereign yield spreads in EMU.

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22

Barral, Baron Guillaume. "Investigation and validation of QTL for yield and yield components in winter barley." Thesis, University of Newcastle upon Tyne, 2016. http://hdl.handle.net/10443/3329.

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The rapid development of biotechnologies in crop genetics has increased the prospects for more efficient crop improvement. In barley breeding programmes, marker assisted selection (MAS) approaches for quantitative trait loci (QTL) for yield and yield components is still developing as it requires a thorough understanding of the genetic architecture of complex traits. This project reports an investigation of QTL for yield and yield components in two-row winter barley using three QTL mapping experiments. First, a bi-parental mapping population from an elite cross identified 23 genetic factors inv

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Sanhueza, Gonzalez Javier Enrique. "Three essays on global yield curve factors and international linkages across yield curves." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/three-essays-on-global-yield-curve-factors-and-international-linkages-across-yield-curves(6dd58365-6d0d-4928-9908-8fdc924df984).html.

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This thesis presents three essays on global yield curve factors and international linkages across yield curves. The essays represent a contribution to our understanding of the effect of globalization on yields, addressing three topics: modeling global and local yield curve factors, modeling global and local yield curve factors in excess bond returns and a joint model of global macroeconomic and yield curve factors. The first essay proposes and develops an empirical model of global and local yield curve factors based on three factors proposed by Nelson and Siegel (1987) dynamized and reinterpre

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Zhen, Chen. "Celestial satellite and earthly crop yield: informational content of satellite-based crop yield forecasts." Thesis, Montana State University, 2001. http://etd.lib.montana.edu/etd/2001/zhen/ZhenC2001.pdf.

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Since the late 70s, burgeoning efforts have been allocated to study the potential of monitoring crop conditions and forecasting crop yields via remote sensing from the satellite. An overwhelming majority of these studies shows that remote sensing from the satellite express high predictive power in crop forecasting. In this thesis, using satellite images to forecast wheat yield from 1989 to 2000 in six Montana Crop Reporting Districts (CRD), several statistical improvements were achieved over extant crop forecasting models. First, different weights were allowed for satellite images obtained at

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25

Alghamdi, Mohammed A. M. "Plant growth regulators effects on vegative growth, yield and yield components in winter wheat." Thesis, University of Reading, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.553077.

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Three glasshouse experiments and one field experiment were carried out to investigate the effect of the plant growth regulator on vegetative growth and yield components of reduced height isogenic lines of the wheat (Triticum aestivum L.) cultivar Mercia. The first experiment compared the growth regulator response of seven isogenic lines of Mercia. Subsequent experiments used four lines, (Mercia control, Rhtl Rht2, and Rht8). Two glasshouse experiments examined the responses under well watered and water stress conditions. The third glasshouse experiment examined rates and time of application un

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26

Sunarlin, Novianti. "Soybean development, yield and yield component responses to shade level and time of shading /." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487260135355056.

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Hartzheim, Paul N. H. "Canada's nascent high-yield market." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0016/MQ49568.pdf.

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Adkin, P. "Yield surfaces in cyclic plasticity." Thesis, Coventry University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374221.

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Batchelor, Stephen Norman. "Reaction yield detected magnetic resonance." Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334884.

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Zhou, Ning 1970. "Improving line yield at Fab17." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/9214.

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Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2000.<br>Also available online at the DSpace at MIT website.<br>Includes bibliographical references (leaf 77).<br>Fab 17 was a Digital Equipment Corporation semiconductor manufacturing and development facility. In June of 1998, Intel purchased Fab 17 from Digital. Intel shifted the focus to manufacturing and implemented many Intel operation policies. Intel sold equipment back to Digital and reorganized the manufacturing organiz

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Félix, Ana Catarina Ramos. "Contagion in sovereign yield spreads." Master's thesis, Instituto Superior de Economia e Gestão, 2013. http://hdl.handle.net/10400.5/6138.

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Mestrado em Economia Monetária e Financeira<br>Since the beginning of the sovereign debt crisis in the Euro Area, the main concern for the European leaders is to prevent against the possible contagion from the distress countries, as Greece, Ireland and Portugal. In our research, we will try to understand if there is a spillover effect from the countries mentioned before and which determinants can be considered as a mechanism of transmission of the sovereign debt crisis. We will perform an econometric analysis in a panel of 13 EU countries (Austria, Belgium, Denmark, Finland, France, Greece, Ir

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32

Chvojka, Erik, and David Lovén. "Dividend yield strategies in Sweden." Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-354811.

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Brand, Howard James Jarrell. "Towards Autonomous Cotton Yield Monitoring." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/72908.

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One important parameter of interest in remote sensing to date is yield variability. Proper understanding of yield variability provides insight on the geo-positional dependences of field yields and insight on zone management strategies. Estimating cotton yield and observing cotton yield variability has proven to be a challenging problem due to the complex fruiting behavior of cotton from reactions to environmental conditions. Current methods require expensive sensory equipment on large manned aircrafts and satellites. Other systems, such as cotton yield monitors, are often subject to error

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Dehlbom, Gustaf. "Interpolation of the yield curve." Thesis, Uppsala universitet, Tillämpad matematik och statistik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-423128.

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Harper, John. "Alfalfa Yield and Cutting Interactions." College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/200496.

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Harper, John, and David K. Parsons. "Alfalfa Variety Yield Comparison, Coolidge." College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/200500.

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Morita, Rubens Hossamu. "Emerging markets yield curve dynamics." reponame:Repositório Institucional do FGV, 2007. http://hdl.handle.net/10438/1839.

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Made available in DSpace on 2010-04-20T20:58:09Z (GMT). No. of bitstreams: 1 1_166956.pdf: 440067 bytes, checksum: 8342545d2c40f2fdb11a07cafe147bd9 (MD5) Previous issue date: 2007-12-18T00:00:00Z<br>This work extendes Diebold, Li and Yueís (2006) about global yield curve and proposes to extend the study by including emerging countries. The perception of emerging market su§ers ináuence of external factors or global factors, is the main argument of this work. We expect to obtain stylized facts.that obey similar pattern found by those authors. The results indicate the existence of global leve

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Kirigwi, Francis M. "Identification of markers associated with grain yield and components of yield under water stress in wheat /." Search for this dissertation online, 2005. http://wwwlib.umi.com/cr/ksu/main.

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Whelan, Helen G. "The effect of crop yield potential on disease yield loss relationships in barley (Hordeum vulgare L.)." Lincoln University, 1992. http://hdl.handle.net/10182/1980.

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Proportional loss models commonly used in disease surveys are based on the assumption that per cent yield loss is the same in all crops, regardless of their yield potential. Estimates of regional crop loss may be inaccurate if the relationship between disease and yield loss is affected by crop yield potential. The importance of crop yield potential in disease: yield loss modelling was investigated and models for more accurate regional crop loss estimates were developed, taking crop yield potential into account. Two spring sown barley (cv. Triumph) experiments were conducted in 1987/88 and 198

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40

Tarhuni, Abdalla Mohamed. "The potential for improved yield and yield stability in faba bean (Vicia faba L.) cultivar mixtures." Thesis, University of Liverpool, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235564.

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Pidaran, Kalaiyarasi. "Effect of planting geometry, hybrid maturity, and population density on yield and yield components in sorghum." Thesis, Kansas State University, 2012. http://hdl.handle.net/2097/15074.

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Master of Science<br>Department of Agronomy<br>Rob M. Aiken<br>Mary Beth Kirkham<br>Prior studies indicate clumped planting can increase grain sorghum yield up to 45% under water deficit conditions by reducing tiller number, increasing radiation use efficiency, and preserving soil water for grain fill. The objective of this study was to evaluate effects of planting geometry on sorghum grain yield. The field study was conducted in seven environments with two sorghum hybrids, four populations, and two planting geometries. Crop responses included leaf area index, yield, and components of yield. D

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42

Liu, Xiaojun. "Effects of Biosolids Application and Harvest Frequency on Switchgrass Yield, Feedstock Quality, and Theoretical Ethanol Yield." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/19267.

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Switchgrass (Panicum virgatum L.) is a promising bioenergy crop for biofuel production. However, the effects of biosolids application on biomass yield, nitrogen (N) concentration, feedstock quality and theoretical ethanol yield (TEY) are rarely reported in the literature. The objectives of this research were: 1) to compare the effects of biosolids application on biomass yield, N concentration, feedstock quality and TEY, and 2) to compare the effects of harvest frequency on biomass yield, N concentration, feedstock quality and TEY. This experiment began in 2010 and tested four plant available N

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Raymond, Fred Douglas. "Reducing Corn Yield Variability and Enhancing Yield Increases Through the Use of Corn-Specific Growth Models." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/36304.

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Crop simulation models (CSMs) are used to evaluate management and environmental scenarios on crop growth and yields. Two corn (Zea Mays L.) crop growth simulation models, Hybrid-Maize, and CERES-Maize were calibrated and validated under Virginia conditions with the goal of better understanding corn response to variable environmental conditions and decreasing temporal yield variation. Calibration data were generated from small plot studies conducted at five site-years. Main plots were plant density (4.9, 6.2, 7.4, and 8.6 plants m-2); subplots were hybrids of differing relative maturity (RM)

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Xie, Quan. "Physiological and genetic determination of yield and yield components in a bread wheat × spelt mapping population." Thesis, University of Nottingham, 2015. http://eprints.nottingham.ac.uk/28998/.

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A substantial increase in wheat yield is needed for global food security. This requires a comprehensive understanding of the physiological and genetic basis of yield determination. The present study aimed to dissect yield physiologically and genetically in a recombinant inbred line mapping population derived from bread wheat × spelt. A total of 201 traits were investigated in the field and glasshouse across three years, and these traits formed five themes: genetic variation in yield and yield components, and the usefulness of spelt as a genetic resource; tillering dynamics; biomass accumulatio

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Khomo, Melvin Muzi. "The yield curve as a forecasting tool : does the yield spread predict recessions in South Africa?" Thesis, Rhodes University, 2006. http://hdl.handle.net/10962/d1004722.

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This paper examines the ability of the yield curve to predict recessions in South Africa, and compares its predictive power with other commonly used variables that include the growth rate in real money supply, changes in stock prices and the index of leading economic indicators. The study also makes an attempt to find out if monetary policy explains the yield spread's predictive power with regards to future economic activity. Regarding methodology, the standard probit model proposed by Estrella and Mishkin (1996) that directly estimates the probability of the economy going into recession is us

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Martinez, Ascanio Ana Karine <1979&gt. "Fine Mapping of qroot-yield-1.06, a QTL for Root, Plant Vigor and Yield in Maize." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/7160/1/Martinez_Ascanio_Ana_Karine_Tesi.pdf.

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Root-yield-1.06 is a major QTL affecting root system architecture (RSA) and other agronomic traits in maize. The effect of this QTL has been evaluated with the development of near isogenic lines (NILs) differing at the QTL position. The objective of this study was to fine map qroot-yield-1.06 by marker-assisted searching for chromosome recombinants in the QTL interval and concurrent root phenotyping in both controlled and field conditions, through successive generations. Complementary approaches such as QTL meta-analysis and RNA-seq were deployed in order to help prioritizing candidate genes w

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Martinez, Ascanio Ana Karine <1979&gt. "Fine Mapping of qroot-yield-1.06, a QTL for Root, Plant Vigor and Yield in Maize." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/7160/.

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Root-yield-1.06 is a major QTL affecting root system architecture (RSA) and other agronomic traits in maize. The effect of this QTL has been evaluated with the development of near isogenic lines (NILs) differing at the QTL position. The objective of this study was to fine map qroot-yield-1.06 by marker-assisted searching for chromosome recombinants in the QTL interval and concurrent root phenotyping in both controlled and field conditions, through successive generations. Complementary approaches such as QTL meta-analysis and RNA-seq were deployed in order to help prioritizing candidate genes w

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Wilson, Laurie L. "Yield stress studies on molten chocolate." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/29792.

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A study of the flow properties of four chocolate samples was conducted. These were commercial semi-sweet (HSS), milk chocolate (HMC) and two experimental samples (H1 and H2). The yield stress, an important quality indicator of the chocolate, was estimated from steady shearing flow data by extrapolating the Casson model equation to zero flow rate and, by allowing stresses to relax after shearing. As well, undisturbed samples were examined in start-up flow using Single Vane and Multiple Vane methods. Proximate and sucrose analyses were carried out to determine the chemical composition of each ch

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Zaabab, Abdel Hafid. "SCFL VLSI circuits for improved yield." Thesis, University of Ottawa (Canada), 1993. http://hdl.handle.net/10393/6599.

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In this thesis an improvement to the Gallium Arsenide source coupled FET logic ECL output cell is presented. Because of parameter variations from site-to-site in the wafer, ECL compatibility of source coupled FET logic circuits, in terms of voltage levels and clock duty cycle, was very poor and therefore the electrical yield was very low. A source coupled FET logic buffer driver was designed to make the Gallium Arsenide ECL cell more resistant to parameter variations and consequently, the yield is highly improved. Furthermore, multi-site circuits are now possible with a high output electrical

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De, Bruin Jason Lee. "Maximizing soybean yield potential in Iowa." [Ames, Iowa : Iowa State University], 2007.

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