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Dissertations / Theses on the topic 'Potato crops'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Wareing, D. R. "The prediction of slug damage in potato crops." Thesis, University of Manchester, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383367.

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2

Storey, M. A. "The varietal susceptibility of potato crops to slug damage." Thesis, London Metropolitan University, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354316.

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3

Naab, Jesse Bonaventure. "Interaction of canopy and root system in water use of potato." Thesis, University of Reading, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308564.

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4

Ping, Zhang. "The partitioning of water loss between crop transpiration and soil evaporation in potato crops." Thesis, University of Reading, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303926.

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5

Mehring, Grant Harry. "Weed Control with Cover Crops in Potato (Solanum Tuberosum L.)." Thesis, North Dakota State University, 2013. https://hdl.handle.net/10365/26807.

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Field experiments were conducted near Oakes and Fargo, North Dakota from 2009-2010, and repeated near Carrington, North Dakota from 2010-2011, to evaluate weed control in both irrigated and non-irrigated potato production as influenced by cover crops and cover crop termination methods. Cover crop treatments at Oakes and Fargo were no cover crop, triticale, rye, turnip/radish, and rye/canola. Cover crop treatments at Carrington were no cover crop, triticale, rye, hairy vetch, and rye/hairy vetch. Termination treatments for the cover crops were roller-crimp, disk-till, roto-till, and herbicide.

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6

Khrais, Tala. "Evaluation of salt tolerance in potato (Solanum spp.)." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23901.

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This research was carried out to identify salt tolerant potato genotypes in vitro among 131 tetraploid potato cultivars (Solanum tuberosum), 9 diploid simple hybrid clones (4 clones of S. chacoense $ times$ S. tuberosum, 4 clones of S. phureja/S. stenotomum $ times$ S. tuberosum, and 1 clone of S. tuberosum $ times$ S. tuberosum), 1 primitive cultivated diploid S. phureja/S. stenotomum accession, 12 tetraploid complex hybrids, and 13 diploid S. chacoense accessions. Four levels of NaCl (0, 40, 80, and 120 mM) were used. The cultivars, and the simple and complex hybrids were tested for salt tol

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7

Harris, P. M. "Tempering the effects of water stress in sugar beet and potato crops." Thesis, University of Reading, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385139.

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8

Bunyolo, A. M. "Effects of fertilizer nitrogen and water supply on growth and yield of the potato crops." Thesis, University of Reading, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379220.

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9

Lynch, Ryan P. "Controlling Soilborne Diseases of Potato and Influencing Soil Microbiology with Brassica Cover Crops." Fogler Library, University of Maine, 2008. http://www.library.umaine.edu/theses/pdf/LynchRP2008.pdf.

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10

Plotkin, Jeremy Barker. "The Effects of Green Manure Rotation Crops on Soils and Potato Yield and Quality." Fogler Library, University of Maine, 2000. http://www.library.umaine.edu/theses/pdf/PlotkinJB2000.pdf.

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11

Al-Hagdow, Moftah Moh. "Interactions between sodium and potassium in micropropagated potato cultivars differing in salinity tolerance." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=20554.

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The response of in vitro-grown Solanum tuberosum L., cvs. Russet Burbank (RB) (salt-sensitive) and Sierra (S) (salt-tolerant) potatoes was investigated when [NaCl] was increased from 0 to 80 mM in the presence of 6, 20, and 30 mM [K] in a Murashige and Skoog (MS) basal medium. The tested growth parameters, Mg and Ca content, and K+/Na + ratios in the laminae and the roots were negatively affected as [NaCl] increased. The salt stress was relatively severe on growth of RB plants whereas the salt-tolerant (S) variety was affected to a lesser extent. There were indications that Na in the plant may

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12

Zhang, Yanling 1955. "Development of in vitro bioassays for determination of salinity tolerance in potato (Solanum spp.)." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=35659.

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Salinity problems seriously affect agricultural production by reducing crop yield and arable land. The evaluation of potato genotypes (Solanum spp.) for their salinity (NaCl) tolerance in conventional field trials is time consuming and labour intensive. The results are often confounded by many field and environmental variations. In vitro bioassays can overcome some of these difficulties by providing faster, more convenient and dependable methods for screening and selection of salt tolerant potato genotypes. The objective of this research was to develop in vitro bioassay methods for screening a

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13

Ragsdale, Jeanna D. "Influence of cover crops on nutrient availability in a sweet potato cropping system in south Florida." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0015300.

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14

Haverkort, A. J. "Relationships between intercepted radiation and yield of potato crops under tropical highland conditions of Central Africa." Thesis, University of Reading, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370132.

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15

NDAYISENGA, VALENCE. "APPROPRIATE FOOD PRODUCTION THROUGH INCREASING CROP YIELD AND INTRODUCING NEW CROPS IN THE DEMOCRATIC REPUBLIC OF THE CONGO." Doctoral thesis, Università Cattolica del Sacro Cuore, 2018. http://hdl.handle.net/10280/53793.

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La mancanza di una buona dieta ben bilanciata nutrizionalmente, porta al persistente sottosviluppo, in particolare per la capacità fisica e intellettuale delle persone e ha un impatto negativo sullo sviluppo del Paese. La presente tesi di dottorato mirava a valutare le strategie per produrre un cibo appropriato sufficiente, sicuro e sostenibile attraverso la sperimentazione di diverse tecniche di coltivazione e cultivar locali di manioca per identificare quali tecniche e cultivar sono più performanti per aumentare la resa. Dall’altra parte, al fine di contribuire alla diversificazione della pr

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16

NDAYISENGA, VALENCE. "APPROPRIATE FOOD PRODUCTION THROUGH INCREASING CROP YIELD AND INTRODUCING NEW CROPS IN THE DEMOCRATIC REPUBLIC OF THE CONGO." Doctoral thesis, Università Cattolica del Sacro Cuore, 2018. http://hdl.handle.net/10280/53793.

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La mancanza di una buona dieta ben bilanciata nutrizionalmente, porta al persistente sottosviluppo, in particolare per la capacità fisica e intellettuale delle persone e ha un impatto negativo sullo sviluppo del Paese. La presente tesi di dottorato mirava a valutare le strategie per produrre un cibo appropriato sufficiente, sicuro e sostenibile attraverso la sperimentazione di diverse tecniche di coltivazione e cultivar locali di manioca per identificare quali tecniche e cultivar sono più performanti per aumentare la resa. Dall’altra parte, al fine di contribuire alla diversificazione della pr

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17

Stevens, Paul Thomas. "Nitrogen Management and the Effects of Compost Tea on Organic Irish Potato and Sweet Corn." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/33418.

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Supply and synchronization of plant-available nitrogen (N) to the soil is a major challenge for organic farmers, especially when growing crops in soils that are in transition from conventional to organic systems. This research evaluated the effects of site produced cover crops and application of soil amendments on N uptake and crop yield of organic Irish potato (Solanum tuberosum) and sweet corn (Zea mays). Cover crops were crimson clover (Trifolium incarnatum) and forage radish (Raphanus sativus). Soil amendments included in-row application of commercially produced dehydrated compost tea abso

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18

Cabrera, Lilian Cervo. "Cooperation in science : the role of scientific collaboration in the study of diseases in wheat and potato crops." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/164382.

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As doenças em plantas podem causar grandes perdas e representar um risco real para a segurança alimentar mundial. Para enfrentar esse desafio, a cooperação entre stakeholders do agronegócio é fundamental. Sendo assim, esta tese tem como proposta mensurar e analisar o papel da cooperação – colaboração científica – no manejo de doenças em plantas, especialmente no trigo e na batata. Para tanto, são apresentados três estudos que abordam tal temática. O primeiro estudo se propõe a caracterizar e estudar o funcionamento de algumas redes de pesquisa agrícola que monitoram patógenos, desenvolvem e di

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19

Rodrigues, Michele Carvalho da Silva. "Avaliação e adequação da lavagem no beneficiamento da batata." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256850.

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Orientador: Marcos David Ferreira<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agrícola<br>Made available in DSpace on 2018-08-19T15:37:33Z (GMT). No. of bitstreams: 1 Rodrigues_MicheleCarvalhodaSilva_M.pdf: 1787890 bytes, checksum: ad42d636315e1e015773f4c6f3929bd8 (MD5) Previous issue date: 2011<br>Resumo: O beneficiamento da batata lavada no Estado de São Paulo, destinada ao mercado in natura ou ao processamento, consome volume excessivo de água, provocando danos ao meio ambiente principalmente no descarte da água residual da etapa de lavagem. Tend

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20

Tofoli, Jesus Guerino. "Ação de fungicidas e indutores de resistência no controle da requeima e pinta preta na cultura da batata." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/11/11136/tde-28042011-155516/.

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A requeima, causada pelo oomiceto Phytophthora infestans e a pinta preta, causada pelo fungo Alternaria solani, estão entre as doenças mais importantes e destrutivas da cultura da batata no Brasil e no mundo. Considerando a importância do controle químico em sistemas integrados e a necessidade de se conhecer detalhadamente o desempenho de fungicidas e indutores de resistência visando à sustentabilidade da produção, o presente estudo objetivou caracterizar e comparar a ação preventiva, residual, curativa, anti-esporulante e resistência à chuva de fungicidas em condições controladas, bem como, a

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21

Romberg, Megan Kara. "Research into two diseases of solanaceous crops in California : 1) characterization of potato early dying in Kern County, California. 2) phylogeny, host range and molecular detection of Fusarium solani f.sp. eumartii, causal agent of Eumartii wilt in potato, foot rot of tomato and stem rot of pepper /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2005. http://uclibs.org/PID/11984.

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22

Wondimagegne, Eshetu. "Bacterial wilt of potato in Ethiopia." Thesis, University of East Anglia, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335193.

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23

Opoku-Ameyaw, Kwabena. "Utilizing radiation #wasted' by the potato crop." Thesis, University of Reading, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.481103.

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24

Mohabir, G. "Biochemical investigations of yield-limitations in potatoes (Solanum tuberosum L.) under warm tropical conditions." Thesis, University of Reading, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380838.

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25

Monday, Tyler Anthony Foshee Wheeler G. "Industrial sweetpotato a viable biofuel crop for Alabama /." Auburn, Ala, 2009. http://hdl.handle.net/10415/1763.

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26

Fowler, James H. "Effect of plant arrangement and density on growth development and yield of two potato varieties." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.257946.

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27

Joshi, Samudra Lal. "Ecology and management of the red ant Dorylus orientalis Westwood in Nepal." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300969.

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28

Ramadan, Mahmoud Hany Abd El-Aziz. "Modelling for irrigation scheduling with particular reference to the potato crop." Thesis, Imperial College London, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300101.

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29

McKenzie, John. "The effects and residues of maleic hydrazide within the potato crop." Thesis, University of Glasgow, 1989. http://theses.gla.ac.uk/2551/.

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This thesis describes the observations of field trials and analytical investigations of the residues of maleic hydrazide (1,2-dihydro-3,6-pyridazinedione) known as MH. MH is marketed in a formulation called `Fazor' and was introduced to the United Kingdom under PSPS (Pesticide Safety Precaution Scheme) in 1985. It is targeted at sprout suppression of ware tubers in store with the added benefits of increased marketable yield and reduced groundkeepers. Two field trials were conducted to investigate the sprout inhibition of MH and its effect on yield. Both field trials used a popular ware seed (c

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30

Peddie, D. C. "Modelling and control of crop conditions in a bulk potato store." Thesis, University of Newcastle Upon Tyne, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372933.

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31

Schroder, Michelle L. "Host plant preference of Rhopalosiphum padi (Hemiptera: Aphididae) and its role in selecting crop border plants to reduce Potato virus Y (PVY) in seed potatoes." Diss., University of Pretoria, 2014. http://hdl.handle.net/2263/79775.

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Winged Rhopalosiphum padi in search of good quality host plants transmit the non-persistent Potato virus Y (PVY) to seed potatoes. Planting a non-virus host plant as a border around the main crop can reduce PVY incidence, because aphids tend to land in high numbers at the edge of a field and the crop border acts as a virus sink. Using a trap crop could increase the number of aphids landing in the border. During host-plant searching behaviour, alate (winged) aphids respond to short (UV) and long (green - yellow) wavelength stimuli and plant volatiles. The present study evaluated R. padi p

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32

Brewer, Marin Talbot. "Effects of Biological Control and a Ryegrass Rotation on Rhizoctonia Disease of Potato." Fogler Library, University of Maine, 2003. http://www.library.umaine.edu/theses/pdf/BrewerMT2003.pdf.

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33

Galvao, Aline Carolina. "Sweet Potato: A "Cluster" Approach to Improve the Crop Sustainability in Temperate Zones." Doctoral thesis, Università degli studi di Padova, 2019. http://hdl.handle.net/11577/3426829.

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Many cultures have the sweet potato how a staple food and that make it is the seventh of the most cultivated crops in the world. Its large capacity of adaptation is due to genetic and phenotypic diversity. The storage roots are the most consumption edible part but are possible to use the other parts of the plant too. Flesh can be orange, purple white, cream, or yellow, and the amount of vitamin and minerals can vary on the colour. In Europe, sweet potato is a niche crop mainly grown in the Mediterranean areas, with predominant white fleshed genotypes. Generally, its associated with subsisten

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34

Ferebee, James Harrison IV. "New Herbicide Strategies for Weed Management in Pumpkin and Soybean and Potato Vine Desiccation." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/86611.

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Weed control and desiccation are routinely executed with herbicides. Potato vine desiccation facilitates harvest, improves skin set, and regulates tuber size. Saflufenacil, glufosinate, saflufenacil plus glufosinate, and carfentrazone plus glufosinate were compared to diquat applied at 43, 31, and 17% B potatoes; similar vine desiccation (14 days after treatment), skin set, and yield were noted amongst treatments. Residual herbicides are routinely used for weed control in pumpkin. Fluridone and acetochlor formulations applied preemergence were evaluated in direct-seeded pumpkin compared to oth

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35

Palumbo, John C., Athayde Jr Tonhasca, and David N. Byrne. "Sampling Schemes and Action Thresholds for Sweet Potato Whitefly Management in Spring Melons." College of Agriculture, University of Arizona (Tucson, AZ), 1994. http://hdl.handle.net/10150/214720.

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Early season infestations of sweet potato whiteflies, Bemisia tabaci ( Gennadius) were monitored in fields of cantaloupe, Cucumis melo L., near Yuma, Arizona. We used these data to describe the relationship between the proportion of infested leaves and mean adult population density for the entire field. This model was used to develop a binomial sampling plan based on a presence- absence approach. We evaluated the model with three independent data sets, and the level of agreement between the model and data was reasonable for pest management purposes. A minimum sample size of 200 leaves is sugge

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36

Paget, Mark Frederick. "Genetic evaluation models and strategies for potato variety selection." Thesis, University of Canterbury. Forestry, 2014. http://hdl.handle.net/10092/9953.

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A series of studies are presented on the genetic evaluation of cultivated potato (Solanum tuberosum L.) to improve the accuracy and efficiency of selection at various stages of a breeding programme. The central theme was the use of correlated data, such as relationship information and spatial and across-trial correlations, within a linear mixed modelling framework to enhance the evaluation of candidate genotypes and to improve the genetic response to selection. Analyses focused on several social and economically-important traits for the enhancement of the nutritional value, disease resistance

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37

Salmazo, Paula Bianca. "Efeitos de subdoses de sulfoniluréias na produtividade e qualidade de tubérculos de batatas (Solanum tuberosum L.)." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/11/11136/tde-14122009-155549/.

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No cenário olerícola nacional, a produção de batata está em crescimento. Nas áreas produtoras de batata das regiões Sul e Sudeste é comum encontrar essa cultura em rotação com milho e trigo. O uso de alguns herbicidas do grupo químico das sulfoniluréias nas culturas anteriores tem causado sintomas de fitointoxicação nas lavouras de batata. As deformações dos tubérculos ocorrem no inicio da fase de tuberização, quando se nota numerosas rachaduras relacionadas à contaminação por sulfoniluréias. O objetivo deste trabalho de pesquisa foi avaliar a resposta de plantas de batata das cultivares Atlan

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38

Ampong, Joseph Eric. "Utilization of 'wasted' solar radiation in the potential growing season by the potato crop." Thesis, University of Reading, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385056.

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39

Ullrich, Silke. "Weed Population Dynamics in Potato Cropping Systems as Affected by Rotation Crop, Cultivation, and Primary Tillage." Fogler Library, University of Maine, 2000. http://www.library.umaine.edu/theses/pdf/Ullrich.pdf.

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40

McPartlan, Helen Clare. "Transgenic potatoes (Solanum tuberosum) : gene dispersal and stability." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241045.

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41

Champagne, Antoine. "Diversité chimique et biofortification des plantes à racines et tubercules tropicales cultivées : caractérisation des parents et élaboration de protocoles permettant l'optimisation de la sélection." Thesis, Saint-Etienne, 2010. http://www.theses.fr/2010STET4017.

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L’agrobiodiversité s'étudie au niveau génotypique mais également au niveau de l'expression chimique de ce génotype, le chimiotype. Les plantes à racines et tubercules tropicales (manioc, patate douce, ignames et taros) sont multipliées par voie asexuée et les bases génétiques sont bien souvent étroites chez les cultivars traditionnels. Malgré les faibles diversités génétiques révélées à l'aide de marqueurs ADN, les chimiotypes sont très variables et leur étude est riche d’informations. Ces cultures vivrières, plantes amylacées mais aussi sources de molécules intéressantes pour les industries a

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42

Renwick, Randall R. "Evaluation of a crop simulation model for potatoes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ41762.pdf.

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43

Stone, Amanda Leigh. "Development of a more sustainable sweetpotato production system in Alabama." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Fall/Thesis/STONE_AMANDA_35.pdf.

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44

Castelhano, Michael Joseph. "Staple Crop Diversity and Risk Mitigation - Potatoes in Bolivia." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/35254.

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Rural areas of most developing nations are dependent on agriculture. In the most remote areas, sometimes referred to as the â less favored areasâ (LFAs), the economic importance of agriculture is paramount. An important obstacle to development in these areas is that agriculture is at the mercy of nature, which may not be particularly friendly. These areas have remained remote due to natural shortcomings causing economic development to occur slower than more advantaged areas elsewhere. Cochabamba Department, in central Bolivia, is home to some of these LFAs. Most Cochabamban producers are l

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45

Loayza, Loza Hildo. "Suivi expérimental du rendement de fluorescence des couverts végétaux par des techniques actives et passives. Application à la détection du stress hydrique." Electronic Thesis or Diss., Sorbonne université, 2022. http://www.theses.fr/2022SORUS465.

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La fluorescence de la chlorophylle (ChlF) est directement liée au processus photosynthétique. Cependant, au niveau de la canopée, ce lien physiologique entre la fluorescence et la photosynthèse peut être brouillé par les changements structurels de la végétation et les interactions entre la lumière du soleil et la structure 3D de la canopée. De plus, une grande partie de nos connaissances sur la relation entre la fluorescence et l'état physiologique des plantes provient d'études au niveau des feuilles réalisées dans des conditions de laboratoire. La signification physiologique de la ChlF au niv

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46

Demon, Inez Manuela. "The effect of crop and pest management on the evolution within the sweet potato white fly, Bemisia tabaci." Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429386.

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47

Leveau, Aymeric. "Caractérisation structurale de l'éliciteur du virus X de la pomme de terre (PVX) : recherche, chez les plantes cultivées, de gènes hôtes, impliqués dans la résistance liée à Rx." Thesis, Evry-Val d'Essonne, 2012. http://www.theses.fr/2012EVRY0036.

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De nos jours, les agents pathogènes des plantes, engendrent encore des pertes agricoles importantes. A terme, la solution la plus adaptée semble être la création de variétés de plantes cultivées présentant une résistance génétique à large spectre et durable. Créer de telles plantes nécessite la compréhension des mécanismes de résistance mis en jeu dans des pathosystèmes modèles, tels que celui impliquant le gène de résistance Rx et le virus X de la pomme de terre. Dans ce système, la protéine Rx intervient dans la perception d’un facteur d'avirulence issu du virus: sa protéine de capside (Cp).

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48

Capiral, Mary Joy Josephine M. "Measurements of ammonia and nitrous oxide emissions from potato fields in Central Washington using differential optical absorption spectroscopy (DOAS), tracer dispersion, and static chamber methods." Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Thesis/Spring2009/m_capiral_042309.pdf.

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Thesis (M.S. in environmental engineering)--Washington State University, May 2009.<br>Title from PDF title page (viewed on May 21, 2009). "Department of Civil and Environmental Engineering." Includes bibliographical references (p. 87-91).

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49

Muñoz, Fernando. "Improving nitrogen management in potatoes through crop rotation and enhanced uptake." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0006202.

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50

Abolgasem, Tounis Maoloud Mohmed. "Effect of variety, fertilisation, rotation, crop protection and growing season on yield and nutritional quality of potato (Solanum tuberosum L.)." Thesis, University of Newcastle upon Tyne, 2014. http://hdl.handle.net/10443/2551.

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Potatoes (Solanum tuberosum L.) are the most important food crop in the world after rice and wheat. Potato tubers contain many types of essential nutrients. They contain high concentrations of carbohydrates and also vitamins, minerals and protein. They also contain toxic compounds called glycoalkaloids. Potato is classed as a protective vegetable because of its high vitamin C content. The objectives of this study were to determine the effects of different fertiliser types (composted cattle manure, mineral NPK fertiliser), pre-crop (beans, barley) crop protection protocols (organic, conventiona

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