Acceder

Bibliografías temáticas / Crop improvement / Tesis

Siga este enlace para ver otros tipos de publicaciones sobre el tema: Crop improvement.

Tesis sobre el tema "Crop improvement"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 25 de julio de 2025

Crea una cita precisa en los estilos APA, MLA, Chicago, Harvard y otros

Elija tipo de fuente:

Consulte los 50 mejores tesis para su investigación sobre el tema "Crop improvement".

Junto a cada fuente en la lista de referencias hay un botón "Agregar a la bibliografía". Pulsa este botón, y generaremos automáticamente la referencia bibliográfica para la obra elegida en el estilo de cita que necesites: APA, MLA, Harvard, Vancouver, Chicago, etc.

También puede descargar el texto completo de la publicación académica en formato pdf y leer en línea su resumen siempre que esté disponible en los metadatos.

Explore tesis sobre una amplia variedad de disciplinas y organice su bibliografía correctamente.

1

Herse, Maria. "Crop improvement using synthetic variation." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.607892.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

2

Atkinson, Ross G. "Molecular approaches to horticultural crop improvement." Thesis, University of Auckland, 1993. http://hdl.handle.net/2292/1911.

Texto completo

Resumen

Plant biotechnology and molecular biology are now being used to complement conventional breeding programmes in most of the world's important crop species. The aim of the research described in this thesis was to improve New Zealand's horticultural crop plants through application of similar molecular techniques. A) Gene transfer systems for apple, pepino and tamarillo Tissue culture systems were developed for micropropagation and regeneration of apple (cv Royal Gala), pepino (cv El Camino) and tamarillo (selection Oratia Red). In all three species, transient expression of the gusA reporter gene

Los estilos APA, Harvard, Vancouver, ISO, etc.

3

Potter, Mark. "Biochemical studies of tissue glucosinolates for improvement of canola (Brassica napus) as a disease break within the southern Australian cereal rotation /." Title page, contents and summary only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09php8678.pdf.

Texto completo

Resumen

Thesis (Ph.D) -- University of Adelaide, Depts. of Plant Science and Crop Protection, 1998.<br>Thesis (Ph.D.)--University of Adelaide, Depts. of Plant Science and Crop Protection, 1999? Bibliographical references: leaves 112-125.

Los estilos APA, Harvard, Vancouver, ISO, etc.

4

Ukozehasi, Celestin. "A physiological basis to crop improvement and agronomic development." Thesis, University of Cambridge, 2015. https://www.repository.cam.ac.uk/handle/1810/248744.

Texto completo

Resumen

Despite of the documented impacts of the so-called green revolution, food security in the world faces new challenges in terms of population growth, increases in no-agricultural land use (urbanization), and climate change. Trends in food security show that the world community is operating within two limits of food system: (i) the quantity of food that can be produced under a given climate; and (ii) the quantity of food needed by a growing and changing population. Therefore, taking food security successfully into the future requires novel approaches to boost agricultural productivity in order to

Los estilos APA, Harvard, Vancouver, ISO, etc.

5

Joshi, Krishna Dev. "Rice varietal diversity and participatory crop improvement in Nepal." Thesis, Bangor University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327412.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

6

O'Neill, Rachel Elizabeth. "Sugar beet cell walls in relation to crop improvement." Thesis, University of Leeds, 2018. http://etheses.whiterose.ac.uk/19845/.

Texto completo

Resumen

Sugar beet (Beta vulgaris L. subsp. vulgaris) is an economically important crop for the production of dietary sucrose. Breeding efforts towards crop improvement traditionally aim to increase sugar yield as well as in field performance. However, more recently the sugar beet pulp, a by-product of sucrose extraction, has been identified as a potential resource for additional industrial applications. Therefore breeding efforts could be directed towards the improved composition of sugar beet pulp for efficient use in these industries. Plant cell wall composition is integral to both crop performance

Los estilos APA, Harvard, Vancouver, ISO, etc.

7

Wen, Lan-Ying. "Maize transposable elements (Ac/Ds) in Brassica oleracea : their introduction and behaviour." Thesis, University of East Anglia, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386253.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

8

Luong, Hang Tu. "Studies on transformation of cassava (Manihot esculenta Crantz.)." Thesis, University of Bristol, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336224.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

9

Patil, Rajendra S. "Genetic manipulation of tomato (Lycopersicon esculentum Mill.) for crop improvement." Thesis, University of Nottingham, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241514.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

10

Chapkowski, Andrew J. "Geographical distribution of pediobius foveolatus in New Jersey soybean fields to control the Mexican bean beetle population." Diss., Maryville, Mo. : Northwest Missouri State University, 2008. http://www.nwmissouri.edu/library/theses/ChapkowskiAndrew/index.htm.

Texto completo

Resumen

Thesis (M.S.)--Northwest Missouri State University, 2008.<br>The full text of the thesis is included in the pdf file. Title from title screen of full text.pdf file (viewed on July 25, 2008) Includes bibliographical references.

Los estilos APA, Harvard, Vancouver, ISO, etc.

11

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.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

12

Yuan, Dawei. "Biotechnological interventions for crop improvement in the context of food security." Doctoral thesis, Universitat de Lleida, 2012. http://hdl.handle.net/10803/84103.

Texto completo

Resumen

Crop productivity is limited by a number of important constraints that need to be addressed urgently in order to avoid an imminent humanitarian crisis. My thesis provides three diverse yet converging examples of biotechnological solutions that can deliver fundamental knowledge, tools and potential products in the form of improved/enhanced crop plants. I conclude my thesis by discussing the potential of biotechnology to address the MDGs. My key conclusion is that although biotechnology can contribute positively and substantially towards many of the MDGs, political expediency and an over-burdeni

Los estilos APA, Harvard, Vancouver, ISO, etc.

13

Bozorgipour, Reza. "The use of in vitro techniques for crop improvement in cereals." Thesis, University of Cambridge, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333244.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

14

Shearman, Victoria Jane. "Changes in the yield limiting processes associated with the genetic improvement of wheat." Thesis, University of Nottingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368340.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

15

Lawn, Robert John. "Contributions to crop improvement and sustainable agriculture in tropical and subtropical Australia." Thesis, [St. Lucia, Qld], 2004. http://espace.library.uq.edu.au/view/UQ:106891.

Texto completo

Resumen

During the past 36 years, the Author has contributed to the science and practice of agriculture in tropical and subtropical Australia, in the areas of crop improvement and sustainable agricultural production. These contributions were made during three phases of activity (i) through postgraduate studies at the University of Queensland (M Agr Sc, 1968-1971) and at the University of Minnesota (Ph D, 1971-1973); (ii) as a research scientist with the Commonwealth Scientific and Industrial Research Organization (1973-1994); and (iii) through leadership of the Cooperative Research Centre for Sustaina

Los estilos APA, Harvard, Vancouver, ISO, etc.

16

Lawn, Robert John. "Contributions to crop improvement and sustainable agriculture in tropical and subtropical Australia /." [St. Lucia, Qld], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18281.pdf.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

17

Sagen, Kristina. "Analysis of the mechanisms and the frequencies of molecular homologous recombination in transgenic tobacco plants." Thesis, Imperial College London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243441.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

18

Griffiths, Martyn Wynne. "Effects of late-season foliar applications of sulphur, and their interactions with nitrogen, on wheat yield and quality." Thesis, University of Wolverhampton, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.330296.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

19

Butler, Helen Theresa. "Alien chromosome instability during callus culture of Solanum tuberosum L. + S. sanctae-rosae hawkes somatic hybrids." Thesis, University of Reading, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298850.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

20

Bouchard, Johnathan. "Conservation analysis of potential cis-NATs in Brassicaceae plants for crop improvement." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=121234.

Texto completo

Resumen

Canola fuels a multi-billion dollar industry in Canada. It is a Canadian trademarked name of specific cultivars derived from specific Brassicaceae plants. Cis-NATs are natural antisense transcripts that overlap a gene and are not translated into proteins. Instead, they silence their parent gene's expression through various mechanisms. Their role in humans is well established, but their role in plants is relatively obscure. The goal of this thesis project is to analyze the conservation of cis-NATs across 8 different Brassicaceae genera (9 species). This is useful for picking up targets for crop

Los estilos APA, Harvard, Vancouver, ISO, etc.

21

Turner, Carla. "Molecular genetic studies on the manipulation of Arabidopsis traits for potential crop improvement." Thesis, University of Sheffield, 2014. http://etheses.whiterose.ac.uk/8324/.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

22

Fusaro, Silvia. "Evaluation, maintenance and improvement of biodiversity for environmental protection and crop nutritional properties." Doctoral thesis, Università degli studi di Padova, 2015. http://hdl.handle.net/11577/3423960.

Texto completo

Resumen

Biodiversity is expected to be an assurance for agroecosystem resilience because it seems fundamental to preserve basic ecosystem services (ES). To examine in depth these topics, the present research aims: a) to evaluate, in real farms, the environmental sustainability by measuring the efficiency of some key ES in agroecosystems with different management; b) to search for relationships among biodiversity groups and ES and c) to explore the existence of correlations between different bioindication methodologies. The basic hypothesis is that a high efficiency of the ES can improve the environmen

Los estilos APA, Harvard, Vancouver, ISO, etc.

23

Voltas, Velasco Jordi. "Barley improvement and yield constraints in Mediterranean environments: binterfacing crop physiology with plant breeding." Doctoral thesis, Universitat de Lleida, 1998. http://hdl.handle.net/10803/8345.

Texto completo

Resumen

L'ordi (Hordeum vulgäre L.) és un cereal de zones temperades conreat extensament en<br/>climes mediterranis. Es desenvolupa favorablement en àrees de pluviometria mitjana anual<br/>superior a 250 mm. Durant les darreres dècades, els increments en rendiment deguts a activitats<br/>de millora genètica han estat poc importants a causa, probablement, de la limitació que la sequera<br/>i altres estressos abiòtics exerceixen sobre el creixement. Futurs increments poden veure's<br/>accelerats per un millor coneixement dels processos que controlen el creixement i<br/>desenvolupament i que limiten la p

Los estilos APA, Harvard, Vancouver, ISO, etc.

24

Crain, Jared Levi. "Leveraging the genomics revolution with high-throughput phenotyping for crop improvement of abiotic stresses." Diss., Kansas State University, 2016. http://hdl.handle.net/2097/32566.

Texto completo

Resumen

Doctor of Philosophy<br>Genetics Interdepartmental Program - Plant Pathology<br>Jesse A. Poland<br>A major challenge for 21st century plant geneticists is to predict plant performance based on genetic information. This is a daunting challenge, especially when there are thousands of genes that control complex traits as well as the extreme variation that results from the environment where plants are grown. Rapid advances in technology are assisting in overcoming the obstacle of connecting the genotype to phenotype. Next generation sequencing has provided a wealth of genomic information resulting

Los estilos APA, Harvard, Vancouver, ISO, etc.

25

Mora, Ortiz Marina. "Pre-breeding, functional genomics and agronomic improvement of the tanniniferous forage crop Onobrychis viciifolia." Thesis, University of Reading, 2015. http://centaur.reading.ac.uk/69907/.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

26

Tiwari, Thakur Prasad. "Participatory crop improvement for maize/millet intercropping with trees in the middle hills of Nepal." Thesis, Bangor University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364984.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

27

Pope, Harley A. N. "Participatory crop improvement : the challenges of, and opportunities for, institutionalisation in the Indian public research sector." Thesis, University of Sussex, 2014. http://sro.sussex.ac.uk/id/eprint/48631/.

Texto completo

Resumen

This thesis considers Participatory Crop Improvement (PCI) methodologies and examines the reasons behind their continued contestation and limited mainstreaming in conventional modes of crop improvement research within National Agricultural Research Systems (NARS). In particular, it traces the experiences of a long-established research network with over 20 years of experience in developing and implementing PCI methods across South Asia, and specifically considers its engagement with the Indian NARS and associated state-level agricultural research systems. In order to address the issues surround

Los estilos APA, Harvard, Vancouver, ISO, etc.

28

Bilbrey, Emma A. "Seeding Multi-omic Improvement of Apple." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1594907111820227.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

29

Stephen, Bruce G. "Crop response models for intensive cereal management applied to barley and wheat in Québec." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56800.

Texto completo

Resumen

This thesis presents an investigation of two production functions (a non-linear-in-parameters and a generalized polynomial) in order to determine which function most appropriately represents the observed relationships of the components of ICM technology. Four spring barley and one spring wheat datasets were assembled from ICM field trials conducted in the Montreal region (1987-89).<br>A quadratic and a Mitscherlich-Baule equation were fitted to the (five) datasets and compared with respect to a number of measures of goodness of fit. One dataset was chosen for generating and graphing a three-di

Los estilos APA, Harvard, Vancouver, ISO, etc.

30

Sunar, Kiran. "Studies on soil microbial diversity of Darjeeling hills and their evaluation for utilization in the improvement of crop health." Thesis, University of North Bengal, 2013. http://ir.nbu.ac.in/handle/123456789/3477.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

31

El, Mghadmi Z. Y. "Effect of environmental stresses and growing medium amendment with 'Zander' on growth of Acacia saligna under saline conditions." Thesis, Coventry University, 2011. http://curve.coventry.ac.uk/open/items/5727ee90-f827-485e-93d9-94a9b5456f43/1.

Texto completo

Resumen

In Libya salinization of land and ground water is a key problem. A. saligna is one species that offers potential for growth under these conditions. Experiments were undertaken to accelerate the germination of Acacia seeds, and various pre-treatment methods were assayed. Boiling water treatment, mechanical scarification and acid improved germination and germination rate. Sowing A. saligna seeds at 30 mm depth gave greatest seedling growth from large and medium seeds whereas 20 mm was more suitable for small seeds. This study aimed to improve the establishment of Acacia saligna irrigated with sa

Los estilos APA, Harvard, Vancouver, ISO, etc.

32

Spash, Clive Laurence. "Measuring the tangible benefits of environmental improvement : an economic appraisal of regional crop damages due to ozone." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/26924.

Texto completo

Resumen

The main purpose of this thesis is to empirically calculate the welfare changes which might be expected to result from potato yield reductions caused by ambient ozone loadings in the Lower Mainland of British Columbia. The objectives of the research are: (1) to review the scientific literature pertaining to the effects of ozone loadings on agricultural crops; (2) to review the methodologies employed in previous regional economic assessments of ozone damages; and (3) to apply an economically defensible technique to the analysis of welfare losses due to ozone. Ozone in the Lower Mainland may be

Los estilos APA, Harvard, Vancouver, ISO, etc.

33

Sharma, Santosh. "Increasing the Genetic Diversity of U.S. Northern Corn Belt Hybrids with Tropical and Temperate Exotic Germplasm." Thesis, North Dakota State University, 2011. https://hdl.handle.net/10365/29319.

Texto completo

Resumen

The NDSU EarlyGEM or the Early Germplasm Enhancement of Maize (Zea maize L.) is a long term incorporation program designed to increase the genetic diversity of short season hybrids. Starting in 1999, exotic GEM breeding crosses derived from temperate accessions: BR52051, CH05015; tropical accessions: SCR01, CUBA17, FS8B; and tropical hybrid DKB844 along with late checks: B73, Mo17, and Iowa Stiff Stalk Synthetic (BSSS), were adapted to short-seasons and incorporated via a modified backcross (BC) procedure. This study was designed to assess the genetic diversity in exotic derived BC1:S1 l

Los estilos APA, Harvard, Vancouver, ISO, etc.

34

Figueroa-Armijos, Maria A. Valdivia Corinne B. "Strategies to develop market access in the Bolivian highlands two case studies for Chuño and Tunta /." Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/6456.

Texto completo

Resumen

Title from PDF of title page (University of Missouri--Columbia, viewed on Feb 17, 2010). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Thesis advisor: Dr. Corinne Valdivia. Includes bibliographical references.

Los estilos APA, Harvard, Vancouver, ISO, etc.

35

Feltham, Hannah. "Maximising a mutualism : sustainable bumblebee management to improve crop pollination." Thesis, University of Stirling, 2015. http://hdl.handle.net/1893/21917.

Texto completo

Resumen

Over 80% of wild angiosperms are reliant upon animal pollination for fruit and seed set and bees and other insects provide a vital pollination service to around a third of the crops we produce. Habitat loss, climate change and disease spread all threaten pollinator populations, with local declines and range contractions in honeybees and bumblebees leading to concerns that crop production may suffer as a result of pollinator shortages. Whilst agriculture and wildlife are often presented as being at odds with one another, the relationship between farmers growing pollination dependent crops, and

Los estilos APA, Harvard, Vancouver, ISO, etc.

36

Sasso, Simone Aparecida Zolet. "Propagação vegetativa de jabuticabeira." Universidade Tecnológica Federal do Paraná, 2009. http://repositorio.utfpr.edu.br/jspui/handle/1/271.

Texto completo

Resumen

A jabuticabeira (Plinia sp.) é uma espécie de difícil propagação vegetativa e um protocolo eficiente para tal ainda não foi definido. O objetivo deste trabalho foi investigar a eficiência de técnicas de propagação vegetativa da espécie e desenvolver um protocolo eficiente para desinfestação e estabelecimento inicial de explantes in vitro. Testou-se o potencial de enraizamento de estacas lenhosas de P. cauliflora, utilizando quatro concentrações de ácido indolbutírico (AIB) (0, 2000, 4000 e 6000 mg L-1) e dois procedimentos (corte vertical e anelamento da estaca); e o potencial de enraizament

Los estilos APA, Harvard, Vancouver, ISO, etc.

37

Holland, Jonathan Eddison. "Changes in soil physical properties under raised bed cropping /." Connect to thesis, 2006. http://eprints.unimelb.edu.au/archive/00002537.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

38

Llop, Casamada Jordi. "Improvement of spray application process in greenhouse tomato crop : assessment of adapted spraying technologies and methods for canopy characterization." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/458447.

Texto completo

Resumen

Vegetable production in greenhouses is an important and productive economic activity for agricultural businesses in Southern Europe. One of the most risky factors affecting this activity is the use of plant protection products (PPP). Several studies have demonstrated that the use of vertical boom sprayers in greenhouses has several advantages over that of traditional spray guns, such as improved spray distribution, reduced labour costs, and reduced operator exposure. On the other hand, canopy characterization is important for a better adjustment of the amount of pesticide/mixture sprayed, and

Los estilos APA, Harvard, Vancouver, ISO, etc.

39

Nishigaki, Tomohiro. "Improvement of Water- and Nutrient-Use Efficiency with Optimum Agricultural Management Practices in Upland Cropping Systems in Morogoro, Tanzania." Kyoto University, 2017. http://hdl.handle.net/2433/228243.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

40

Matei, Gilvani. "Implicações da capacidade de combinação e da distância genética na seleção de genitores de trigo (Triticum aestivum L.)." Universidade Tecnológica Federal do Paraná, 2010. http://repositorio.utfpr.edu.br/jspui/handle/1/248.

Texto completo

Resumen

A identificação de metodologias eficientes para essa escolha de genitores em programas de melhoramento tem recebido grande atenção dos pesquisadores. O cruzamento dialélico é muito utilizado com esta finalidade; entretanto, à medida que o número de genótipos a serem testados aumenta, sua utilidade torna-se progressivamente inviável. Alternativas como medidas de dissimilaridade (baseadas em dados morfológicos, moleculares e genealógicos) têm sido propostas. Deste modo, o objetivo deste trabalho foi o de estimar a capacidade geral (CGC) e especifica (CEC) de combinação, heterose e depressão endo

Los estilos APA, Harvard, Vancouver, ISO, etc.

41

Larson, Ben James. "Integrated management of Cercospora leaf spot on sugar beet." Thesis, Montana State University, 2004. http://etd.lib.montana.edu/etd/2004/larson/LarsonB04.pdf.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

42

Ikazaki, Kenta. "Development of a Land Management Practice for Wind Erosion Control and Improvement of Crop Production in the Sahel, West Africa." Kyoto University, 2010. http://hdl.handle.net/2433/120464.

Texto completo

Resumen

Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第15421号<br>農博第1806号<br>新制||農||979(附属図書館)<br>学位論文||H22||N4520(農学部図書室)<br>27899<br>京都大学大学院農学研究科地域環境科学専攻<br>(主査)教授舟川晋也, 教授縄田栄治, 教授間藤徹<br>学位規則第4条第1項該当

Los estilos APA, Harvard, Vancouver, ISO, etc.

43

Barman, Shibu. "Development of year long edible mushroom cultivation practices in North Bengal and field evaluation of spent mushroom substrate for crop improvement." Thesis, University of North Bengal, 2017. http://ir.nbu.ac.in/handle/123456789/2666.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

44

Hébert, Yann. "Simulating input biotechnology adoption using a system dynamics approach." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=78376.

Texto completo

Resumen

A system dynamics model is developed to study the technology adoption process (TAP) of modern agriculture input technology such as the biotechnologies. The work shows that the system dynamics approach is appropriate to integrate the different components considered in the TAP conceptual framework elaborated in this work. The conceptual framework illustrates the different system components found important in the literature, portfolio decision-making, learning, information gathering, uncertainties and economics perceptions and their involved relationships.<br>The model is first calibrated

Los estilos APA, Harvard, Vancouver, ISO, etc.

45

Willard, Kyle. "Investigation of exopolysaccharide producing bacteria isolated." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/71627.

Texto completo

Resumen

Thesis (MSc)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: The deterioration of harvested sugarcane as a result of bacterial growth causes major losses of sucrose and a build-up of exopolysaccharides (EPS). Polysaccharides present during production increase the massecuite viscosity, which negatively influences evaporation and crystallisation. In this study 38 culturable EPSproducing bacteria were isolated from milled sugarcane. Analysis of the EPS showed the ubiquitous presence of glucose, however, 14 polysaccharides also contained mannose, fructose or galactose. In vitro treatmen

Los estilos APA, Harvard, Vancouver, ISO, etc.

46

Schauberger, Bernhard. "Improving crop models with respect to yield variability and climate extremes as a precondition for food security assessments." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/18827.

Texto completo

Resumen

Die Ernährungssicherheit ist bedroht, unter anderem durch den Klimawandel. Eine Zunahme der Wetterextreme kann zu deutlichen Ertragseinbußen führen. Deshalb ist eine Quantifizierung des Klimaeinflußes auf die Landwirtschaft nötig um eine rechtzeitige Anpassung zu ermöglichen. Die vorliegende Dissertation schlägt daher Verbesserungen für Ertragsmodelle in Bezug auf Klimaextreme vor. Der erste Teil ist eine Metastudie zur Strukturierung von Wissen. Eine neue Methode wird zum Aufbau eines enzyklopädischen Netzwerks verwendet. Dieses erlaubt Vorschläge zur Modellverbesserung abzuleiten. Zwei da

Los estilos APA, Harvard, Vancouver, ISO, etc.

47

Wang, Zheng. "Effect of Different Schedules of Baby Corn (Zea Mays L.) Harvests on Baby Corn Yield, Grain Yield, and Economic Profit Value." TopSCHOLAR®, 2009. http://digitalcommons.wku.edu/theses/131.

Texto completo

Resumen

Maize (Zea mays L.) ranks third as a food crop after wheat and rice and is characterized not only as a cereal crop but also as a vegetable. Maize used as a vegetable is known as “baby corn”. Baby corn consists of unfertilized young ears harvested 2 or 3 days after silk emergence. The present study was implemented in 2009 at Western Kentucky University Agriculture Research and Education Center (36.93 N, 86.47 E) in Bowling Green, Kentucky. The purpose of the study was to compare the effect of different schemes of harvest on baby corn (BC) yield, grain maize (GM) yield, and estimated economic re

Los estilos APA, Harvard, Vancouver, ISO, etc.

48

Dawit, Abigail Ngugi. "Improvement of Helicoverpa armigera resistance in pigeonpea (Cajanus cajan) through 'omics and breeding." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/226045/1/Abigail_Dawit_Thesis.pdf.

Texto completo

Resumen

Pigeonpea (Cajanus cajan) is a sub-tropical and tropical pulse rich in plant-based protein, carbohydrates, minerals, and vitamins. Helicoverpa armigera is the most devastating insect pest in pigeonpea. This study focussed on deciphering the molecular host plant resistance (HPR) mechanisms applied by Cajanus scarabaeoides a wild pigeonpea against insect using transcriptomic and proteomic studies. These HPR mechanisms were transferred to the cultivated pigeonpea via interspecific hybridisation, and they are stable at F2 generation. The study outcome provides a unique insight into the insect resi

Los estilos APA, Harvard, Vancouver, ISO, etc.

49

De, Groot Stephan. "Initiation of a pre-breeding programme for enhancing genetic resistance against wheat rust." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/71721.

Texto completo

Resumen

Thesis (MSc)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: Plant diseases are among the major causes of food insecurity. In South Africa the wheat fungal diseases including stem rust caused by Puccinia graminis f. sp. tritici, leaf rust caused by P. triticina and stripe rust caused by P. striiformis f. sp. tritici are the most important. Genetic resistance is a viable way of protecting wheat crops against the wheat rusts, especially cultivars carrying multiple genes that confer durable resistance. In order to breed for multi-gene resistance an effective breeding strategy that allow

Los estilos APA, Harvard, Vancouver, ISO, etc.

50

Hanse, Bram [Verfasser], Bernward [Akademischer Betreuer] Märländer, Oliver [Akademischer Betreuer] Muâhoff, Frans [Akademischer Betreuer] Tijink, and Mark [Akademischer Betreuer] Varrelmann. "Improvement of the competitiveness of the sugar beet crop in the Netherlands / Bram Hanse. Gutachter: Oliver Muâhoff ; Frans Tijink ; Mark Varrelmann. Betreuer: Bernward Märländer." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2011. http://d-nb.info/1043718346/34.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Ofrecemos descuentos en todos los planes premium para autores cuyas obras están incluidas en selecciones literarias temáticas. ¡Contáctenos para obtener un código promocional único!