Thèses sur le sujet « Diplodia disease »
Créez une référence correcte selon les styles APA, MLA, Chicago, Harvard et plusieurs autres
Consultez les 20 meilleures thèses pour votre recherche sur le sujet « Diplodia disease ».
À côté de chaque source dans la liste de références il y a un bouton « Ajouter à la bibliographie ». Cliquez sur ce bouton, et nous générerons automatiquement la référence bibliographique pour la source choisie selon votre style de citation préféré : APA, MLA, Harvard, Vancouver, Chicago, etc.
Vous pouvez aussi télécharger le texte intégral de la publication scolaire au format pdf et consulter son résumé en ligne lorsque ces informations sont inclues dans les métadonnées.
Parcourez les thèses sur diverses disciplines et organisez correctement votre bibliographie.
Mandal, Parimal. « Induction of resistance in tea (Camellia sinensis (L.) O. Kuntze) by biotic and abiotic inducers aganist lasiodiplodia theobromae (Pat) griffon & ; mauble for management of diplodia disease ». Thesis, University of North Bengal, 2008. http://hdl.handle.net/123456789/1353.
Texte intégralSilva, Ana Cristina Alves. « Contribution to the study of shoot blight disease on stone pine (Pinus pinea L.) ». Master's thesis, ISA/UL, 2018. http://hdl.handle.net/10400.5/17810.
Texte intégralUntil a few years ago, the stone pine (Pinus pinea) was a species affected by few pathogens, but recently shoot blight and death of the shoots have been frequently reported in our country, causing serious concerns for producers and pine nut industry. By hindering the development of cones, this problem affects the production of pine nuts, the main resource of this forest industry. Lately, fungi belonging to different genera have been identified associated with shoot blight of stone pine. Some of these fungi, such as Sydowia polyspora, were unknown in Portugal and others, although present in our country (eg Pestalotiopsis spp.), were usually considered weak or stress parasites, affecting only weakened trees. The main aim of the present work was to contribute for the identification of the fungi associated to shoot blight of stone pine and to clarify their role in the expression of the disease. A total of 46 isolates from seven different sites were analysed. Identification was made based on cultural and morphological characteristics and phylogenetic analysis (ITS, TEF and TUB regions). Isolates of the most relevant species were tested for their pathogenicity. This work allowed to identify several species of fungi associated with shoot blight in stone pine, namely: Diplodia sapinea, Epicoccum nigrum, Pestalotiopsis australis, Pestalotiopsis sp. and Sydowia polyspora. The inoculation of one year-old P. pinea plants under controlled conditions allowed to confirm the pathogenicity of isolates of species D. sapinea and Pestalotiopsis sp.. The role of S. polyspora in the expression of these symptoms was not clarified, however, in the plants inoculated simultaneously with D. sapinea and S. polyspora isolates, the incidence of the disease was much higher than in the plants inoculated with D. sapinea alone, raising the hypothesis that S. polyspora may be potentiating the pathogenicity of D. sapinea. In this work, the fungus S. polyspora was identified for the first time in Portugal and for the first time in stone pine. It should also be pointed out that the isolate belonging to Pestalotiopsis sp., whose pathogenicity was proved in the present work, presents morpho-cultural and genetic characteristics different from those described for other species within this genus, being more aggressive than other known species within this genus
N/A
Neuls, Cézar Augusto. « Adubação potássica e tratamento de sementes nas podridões do colmo em milho ». Universidade Federal de Pelotas, 2012. http://repositorio.ufpel.edu.br/handle/ri/1387.
Texte intégralThe objective of the present study was to evaluate the effect of potassium and seed treatment of corn rot stalk disease. In experiment 1 and 2 were used five potassium doses (0, 40, 80, 120 and 160kg ha-1) in soils with levels of 190 and 120ppm of potassium respectively. In experiment 3, six doses of potassium (0, 65, 97.5, 130, 162.5, 195kg ha-1), but with levels of 40ppm in soil were tested. In experiment 4 was tested the potassium effect with seed treatment. The experimental design was a randomized complete blocks with four replications and plots of 21.0m2. The following corn hybrids were testes: Pioneer 30R50, NK Sprint and Agroeste 1560 respectively for experiment 1, 2, 3 and 4. Experiments were conducted according to corn technical recommendations. Grain yield, incidence of stalk rot were assessed. It was also determined the content of phenolic compounds. Data were submitted to analysis of variance using the F test, followed by the use of linear and nonlinear regression analysis. The following conclusions were taken: 1) potassium has effect on the incidence of CSR, only under conditions of low levels in the soil; 2) Seed inoculum is one way of introduction of CSR causal agent in areas not previously cultivated with corn; 3) potassium does increase phenolic acid concentration, given higher tolerance to corn stalk rot.
O objetivo do presente estudo foi avaliar o efeito da adubação potássica e do tratamento de sementes na incidência das podridões do colmo em milho, avaliando alguns efeitos fisiológicos e metabólicos. Nos experimentos 1 e 2 foram testadas cincos doses de potássio (0, 40, 80, 120 e 160kg.ha-1), em solos com níveis de 190 e 120ppm de potássio, respectivamente. No experimento 3, foram testadas seis doses de potássio (0, 65, 97.5, 130, 162.5, 195kg.ha-1), porém com níveis de 40ppm no solo. No experimento 4, foi testada a presença e ausência de potássio, associado ou não com tratamento de sementes. O delineamento experimental, para todos os experimentos, foi o de blocos ao acaso, com quatro repetições, parcelas de 21,0m2 (6,0 x 3,50m). Foram utilizados os híbridos: Pionner 30R50, NK Sprint e Agroeste 1560, respectivamente, aos experimentos 1, 2, 3 e 4. Na condução do estudo, as práticas culturais foram realizadas de acordo com as recomendações técnicas para a cultura do milho. Foi avaliado o rendimento de grãos e a incidência das podridões de colmo (PBCs) em milho, usando metodologia definida por Reis et al. (1998). Determinaram-se também o teor de compostos fenólicos no tecido do colmo do milho usando metodologia desenvolvida por Deschamps et al. (2002). Com base nos resultados, chegou-se às seguintes conclusões: 1) A aplicação de potássio em solos com baixos teores desse nutriente aumenta a tolerância da podridão da base do colmo em milho; 2) O potássio aumenta a concentração de ácidos fenólicos, proporcionando maior tolerância da podridão da base do colmo em milho; 3) O tratamento de sementes diminui a incidência da podridão da base do colmo em milho.
Flowers, Jennifer Lee. « Localization of Diplodia pinea in diseased and latently-infected Pinus nigra ». Lexington, Ky. : [University of Kentucky Libraries], 2005. http://lib.uky.edu/ETD/ukyplpa2006d00382/.
Texte intégralTitle from document title page (viewed on March 2, 2006). Document formatted into pages; contains ix, 177 p. : ill. (some col.). Includes abstract and vita. Includes bibliographical references (p. 159-172).
Chalmers, Lynn. « A comparative assessment of health and immune response between triploid and diploid Atlantic salmon (Salmo salar) ». Thesis, University of Stirling, 2017. http://hdl.handle.net/1893/26609.
Texte intégralWeldegebriel, Kibrom Asmerom. « Synthetic studies on the spiroacetal moiety of Stenocarpin, a metabolite of Diplodia maydis / ». Diss., Access to E-Thesis, 2003. http://upetd.up.ac.za/thesis/available/etd-09082005-122736/.
Texte intégral陳坤德 et Kwan-tak Chan. « Diploma disease and vocational education and training in Shanghai, China ». Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31962142.
Texte intégralChan, Kwan-tak. « Diploma disease and vocational education and training in Shanghai, China ». Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B23500761.
Texte intégralFlowers, Jennifer Lee. « LOCALIZATION OF DIPLODIA PINEA IN DISEASED AND LATENTLY-INFECTED PINUS NIGRA ». UKnowledge, 2006. http://uknowledge.uky.edu/gradschool_diss/438.
Texte intégralShupert, David Andrew. « Inheritance of flower, stem, leaf, and disease traits in three diploid interspecific rose populations ». Thesis, Texas A&M University, 2005. http://hdl.handle.net/1969.1/4450.
Texte intégralHämäläinen, Jaana. « Molecular mapping of potyvirus resistance genes in diploid potatoes / ». Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5703-3.pdf.
Texte intégralSimon, Louise, et mls@eryptick net. « Examination Orientation and the Opportunity Structure in Chinese Education : Case Studies of Kunming High Schools ». The Australian National University. Research School of Pacific and Asian Studies, 2001. http://thesis.anu.edu.au./public/adt-ANU20021023.102300.
Texte intégralKuehl, Kristin. « Differences in the Susceptibility to Black Band Disease between Two Species of the Genus Diploria on the Reefs of Bermuda ». FIU Digital Commons, 2010. http://digitalcommons.fiu.edu/etd/230.
Texte intégralPratte, Zoe A. « Investigating the Driving Mechanisms Behind Differences in Bleaching and Disease Susceptibility Between Two Scleractinian Corals, Pseudodiploria Strigosa and Diploria Labyrinthiformis ». FIU Digital Commons, 2015. http://digitalcommons.fiu.edu/etd/2217.
Texte intégralAbdulmwli, Mhamoued A. A. « Biomarkers of Genotoxic and Reprotoxic Effects after Chemical Exposure. The genotoxic effects due to the respiratory disease of Tuberculosis (TB) patients compared to healthy controls in diploid lymphocyte and haploid sperm cells, after treated with two heterocyclic amines and quercetin in bulk and nano forms ». Thesis, University of Bradford, 2019. http://hdl.handle.net/10454/18335.
Texte intégralLibyan Embassy
SPAGNOLO, ALESSANDRO. « Studio della diffusione di specie di Botryosphaeriaceae isolabili da vite in Toscana e caratterizzazione del loro potenziale patogenetico ». Doctoral thesis, 2009. http://hdl.handle.net/2158/546275.
Texte intégralMasi, Marco. « Chemical and biological characterization of phytotoxins produced by Diplodia species, fungi involved in forest plants diseases ». Tesi di dottorato, 2013. http://www.fedoa.unina.it/9139/1/Ph.D.%20Thesis%20Marco%20Masi.pdf.
Texte intégralMkhize, Phumzile. « Development of an enzyme-linked immunosorbent assay (ELISA) for field detection and discrimination of Fusarium circinatum from Fusarium oxysporum and Diplodia pinea in pine seedlings ». Thesis, 2013. http://hdl.handle.net/10413/11230.
Texte intégralM.Sc.Agric. University of KwaZulu-Natal, Pietermaritzburg 2013.
Barekye, Alex. « Breeding investigations for black Sigatoka resistance and associated traits in diploids, tetraploids and the triploid progenies of bananas in Uganda ». Thesis, 2009. http://hdl.handle.net/10413/616.
Texte intégralThesis (Ph.D.) - University of KwaZulu-Natal, Pietermaritzburg, 2009.
Simon, Louise. « Examination Orientation and the Opportunity Structure in Chinese Education : Case Studies of Kunming High Schools ». Phd thesis, 2000. http://hdl.handle.net/1885/48191.
Texte intégral