Thèses sur le sujet « Spot blotch »
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Ruckstuhl, Markus. « Wheat spot blotch fungus / ». Zürich, 1997. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=12302.
Texte intégralNeupane, Anjan. « Identification of Host Resistant Effective against the Barley Spot Form Net Blotch Pathogen ». Thesis, North Dakota State University, 2014. https://hdl.handle.net/10365/27372.
Texte intégralJonsson, Rickard. « Breeding for resistance to barley net blotch (Pyrenophora teres) / ». Alnarp : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2001. http://epsilon.slu.se/avh/2001/91-576-5814-5.pdf.
Texte intégralBovill, Jessica. « Mapping spot blotch & ; common root rot (causal agent : bipolaris sorokiniana) resistance genes in barley ». University of Southern Queensland, Faculty of Sciences, 2008. http://eprints.usq.edu.au/archive/00006178/.
Texte intégralAris, Virginie Marie. « Use of Weather-based Modeling for Disease Management of Early Leaf Spot of Peanut and Glume Blotch of Wheat ». NCSU, 1999. http://www.lib.ncsu.edu/theses/available/etd-19991104-074954.
Texte intégralWeather based models help time fungicide applications to the periods when the diseases are most likely to occur. The first objective of this work was to compare and adapt weather-based advisories developed for the control of Cercospora arachidicola on peanuts for resistant cultivars. It was achieved by comparing the disease progress curves of the 1997-1999 growing seasons in Lewiston NC, to spray schedules simulated by the Virginia Advisory, the Parvin, Smith and Crosby Advisory (PSC), NC Advisory, and AU-Pnuts Advisory and their adaptations for resistance. Field trials were conducted in 1997, 1998 and 1999 to test adaptations for resistant genotypes based on the NC Advisory. In all three years the leaf spot epidemics started late in the season (September). There was no yield difference due to leaf spot control except in 1999 in Lewiston for the susceptible genotypes (NC 7 and NC 11). All the advisories had a tendency to overspray at the beginning of the season, this might be due to a lack of inoculum at this time. The resistant genotype used for the study, GP-NC 343, did not lose any yield due to leaf spot in any of the tests and therefore did not need to be sprayed. The model that had the best fit to the disease progress curve of the susceptible genotypes was the AU-Pnuts 12/4. The AU-Pnuts advisory 7/3, currently used in the Southeastern US, started spraying to early in the season for NC. The Virginia advisories also oversprayed. The NC advisory and the PSC were considered almost equivalent, and the adaptations for the PSC did not differ from the PSC itself.The second objective was to develop a simulation model to predict epidemics of Stagonospora nodorum on winter wheat. The CERES-Wheat model was used to simulated leaf area indexes (LAI) for the wheat plant throughout the season. The disease model developed in this work simulated the spread of spores onto the plant leaves and heads, infection, the latent period and, lesion extension. The model equations were inferred from the literature and were calibrated with disease assessments made on Coker 9904 during the spring of 1998 in Plymouth NC. For 1998 and 1999, disease increase in the lower leaves took place 20 days after the disease increase was simulated by the model both years. The most effective spray timing corresponded to a period when disease was first observed in the lower leaves, no disease was seen on the flag leaf, and simulated onset of disease on the flag leaf had occurred. A sharp simulated disease increase in the flag leaf compartment may be a very good indicator for a spray recommendation. Combining a disease model to an already existing crop growth model facilitated modeling disease progress. Further work will be needed to fully validate both the CERES-wheat and the S. nodorum models in North Carolina Coastal Plains.
Ameen, Gazala. « Cloning and Characterization of rcs5, Spot Blotch Resistance Gene and Pathogen Induced Nec3 Gene Involved in Programmed Cell Death in Barley ». Diss., North Dakota State University, 2019. https://hdl.handle.net/10365/29962.
Texte intégralAada, Abdallah. « Identification of pathogens and control of spot blotch disease of barley (Hordeum vulgare) by combining plant resistance and biological control ». Thesis, University of Newcastle upon Tyne, 2013. http://hdl.handle.net/10443/2148.
Texte intégralVirdi, Simerjot Kaur. « Roles of the TSN1 and TSC2 Genes in Conferring Susceptibility of Durum Wheat to Tan Spot and Septoria Nodorum Blotch ». Thesis, North Dakota State University, 2015. https://hdl.handle.net/10365/27628.
Texte intégralKinzer, Kasia Marie. « Characterizing Pyrenophora Teres F. Maculata in the Northern United States and Impact of Spot Form Net Blotch on Yield of Barley ». Diss., North Dakota State University, 2015. http://hdl.handle.net/10365/25318.
Texte intégralAmerican Malting Barley Association
Triticeae CAP
North Dakota Barley Commission
Sun, Qun. « Genome-Wide Association Mapping of Host Resistance to Stem Rust, Leaf Rust, Tan Spot, and Septoria Nodorum Blotch in Cultivated Emmer Wheat ». Diss., North Dakota State University, 2015. http://hdl.handle.net/10365/24881.
Texte intégralChinese Scholarship Council (CSC)
Shrestha, Subidhya. « Histology of Spot Blotch Infection in Barley, QTL Mapping of Resistance to Fusarium Head Blight, and Characterization of Root Rot Diseases in Wheat ». Diss., North Dakota State University, 2017. https://hdl.handle.net/10365/28391.
Texte intégralNorth Dakota Wheat Commission,
Minnesota Wheat Research and Promotion Council
ND State Board of Agricultural Research and Education
Triticeae-CAP project (2011-68002-30029) of the US Department of Agriculture National Institute of Food and Agriculture
U.S. Wheat and Barley Scab Initiative (USWBSI)
Campbell, Graham F. (Graham Findlay). « Genetics of pathogenicity in Pyrenophora leaf diseases of barley ». Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52286.
Texte intégralENGLISH ABSTRACT: Net blotch of barley, caused by Pyrenophora teres, is one of the most important diseases of this cereal in the south Western Cape Province of South Africa. This fungus exists as two different types (forms), namely a nettype and a spot-type that are distinguished by differential symptom expression on barley leaves. Based on this specific plant pathological difference a series of studies of agricultural importance were executed to investigate the effects of sexual recombination between these two types. In addition, studies were done to determine the difference between local net- and spot-type populations with regards to population structure and fungicide sensitivity. This dissertation therefore, consists of a collection of separate publications and as a result a certain degree of redundancy has been unavoidable. Recombination is one of the most important evolutionary forces involved with sexual reproduction. In plant-fungal agricultural ecosystems this may result in pathogenic fungal populations adapting more rapidly to control programs such as fungicide applications. The first section of the review in part 1 of this dissertation covers different aspects of sexual reproduction in ascomycetes, specifically focussing on mating-type genes, vegetative incompatibility and recombination. The major part of the review is then dedicated to various plant pathological aspects of P.teres, specifically addressing the differences between the two types, and in various cases highlighting the significance of sexual recombination within and between the net- and spot-type. Using morphological criteria for identification purposes there have been many conflicting reports concerning the identity of leaf spot isolates in the Western Cape Province of South Africa. In part 2, the correct identity was eventually achieved employing mating studies and molecular markers .: This was accomplished after single ascospores were obtained from pseudothecia after in vitro mating had occurred between a verified P. teres net-blotch isolate from Denmark and a representative Pyrenophora leaf spot isolate from South Africa. Using amplified fragment length polymorphism (AFLP) and RAPD markers, recombination was demonstrated in the progeny that had DNA banding patterns different from the two parental isolates. Pathogenicity trials also confirmed that recombination had taken place during mating. Inoculations were conducted on the differential cultivars susceptible to the net-blotch and leaf spot forms. The two parents induced typical net-blotch or leaf spot symptoms whereas the progeny mostly induced a jagged spot symptom on each cultivar. Fungicide sensitivity tests using the ergosterol biosynthesis inhibitors showed that, due to recombination, some progeny could have increased resistance to these fungicides. Due to mating and subsequent recombination between a net blotch isolate of P. teres and a representative leaf spot isolate, it was concluded that the latter was P. teres f. maculata. Fifteen of the net-spot hybrid progeny (F1) produced from the mating study in Part 2 were screened in Part 3 to assess their viability and genetic stability. Hybrid progeny (F1) inoculated onto barley seedlings consisting of the cultivars Stirling (differentially susceptible to net-type isolates), B87/14 and Clipper (both differentially susceptible to spot-type isolates) produced intermediate symptoms on all cultivars. Axenic cultures (F1-1) isolated from foliar lesions, followed by repeated inoculation and isolation (F1-2) onto a healthy set of seedlings produced similar intermediate symptoms. RAPDs conducted with two 1Q-mer primers on all isolates of F1-1and F1-2progeny revealed profiles similar to those obtained for F1 isolates. RAPD molecular data, therefore, indicated that hybrid progeny of this net x spot mating were genetically stable after having been subjected to two repetitive inoculation and reisolation cycles. Phylogenetic analysis of DNA sequences of the internal transcribed spacers (ITS1 and ITS2) flanking the 5.8S nuclear ribosomal RNA gene and the 5' end partial histone-3 gene confirmed the genetic stability of the hybrid progeny. These results also indicated that the hybrid progeny produced consistent symptoms throughout the series of experiments, and maintained their virulence to the differential cultivars screened. Both types of P. teres are prevalent in the south Western Cape Province of South Africa, found on susceptible cultivars often grown within close proximity of each other. In Part 4, a net- and spot-type population were characterised in terms of their population structure using RAPD markers. Samples were collected from infected barley leaves from two separate quadrants in each field, the two quadrants positioned in corners of the fields, diagonal to one another. A total of 65 loci were produced of which 54 were polymorphic. Total gene diversities determined for all loci resulted in mean indices of 0.063 and 0.082 being obtained respectively for the net- and spottype populations. A coefficient of genetic differentiation (Gs) of 0.0149 was obtained between sites within populations while a coefficient (GT) of 0.63 was obtained between the two populations. Genotypic variation revealed 13 distinct multilocus genotypes (haplotypes) in the net-type population while there were 12 in the spot-type population. UPGMA cluster analysis done on the two populations together with six progeny from the mating between a netand spot-type isolate resulted in three main clusters being produced, one for each population and one for the progeny. One isolate collected from the nettype population also contained a unique spot-type RAPD fragment. This suggested that sexual recombination may be taking place between isolates of the net- and spot-type under field conditions. Fungicide application is the most important method used in the control of net blotch in South Africa. In Part 5 the fungicide sensitivities (ICsD values) of 89 monoconidial isolates (46 net-type and 43 spot-type) of P. teres to sterol demethylation inhibiting fungicides were determined, based on the inhibitory effect on radial mycelial growth. The fungicides evaluated were triadimenol, bromuconazole, flusilazole, propiconazole and tebuconazole. Both net- and spot-type isolates revealed strong resistance to triadimenol while flusilazole was shown to be the strongest inhibitor of fungal growth. Spot-type isolates showed a higher resistance than net-type isolates to all five fungicides screened. The ICsD values indicated significant differences between four of the fungicides (triadimenol, tebuconazole, flusilazole and propiconazole). The ICsD values between propiconazole and bromuconazole were not significant. This study suggested that spot-type isolates showed a higher degree of resistance to commercially used fungicides than net-type isolates. The overall conclusion of this study is that the spot-type of P. teres is the pathogen associated with leaf spots of barley in the south western Cape province of South Africa and not P. japonica as earlier reported. Together with the net-type, both types exist as genetically variable populations in this barley production region. Mating between the two types results in sexual progeny that are genetically stable. This implies that barley fields adjacent to one another in which either net- or spot-type susceptible cultivars are being cultivated may lead to sexual progeny being produced. This in turn may lead to an increased rate at which fungal populations may become resistant to commercially used fungicides. It is furthermore suggested that an alternative fungicide seed treatment is used instead of triadimenol due to high resistance of P. teres to this fungicide.
AFRIKAANSE OPSOMMING: Netvlek op gars is een van die belangrikste siektes van hierdie graansoort in die suidelike deel van die Westelike Kaapprovinsie. Dié siekte word veroorsaak deur die swam Pyrenophora teres. Hierdie swam kom voor as twee verskillende tipes, naamlik 'n net-tipe en 'n kol-tipe wat onderskei word op grand van die voorkoms van hulle simptome op garsblare. Hierdie planpatologiese verskil in ag genome, is 'n reeks studies van landboukundige waarde uitgevoer om die effek van geslagtelike rekombinasie tussen die twee tipes te ondersoek. Daarbenewens is ook studies uitgevoer om om die verskil te bepaal tussen plaaslike net- en koltipe populasies ten opsigte van populasiestruktuur en fungisiedsensitiwiteit. Hierdie verhandeling bestaan dus uit 'n versameling afsonderlike publikasies en as gevolg daarvan is daar onvermydelik'n mate van oorvleueling. Rekombinasie is een van die belangrikste evolusionêre kragte betrokke by geslagtelike voortplanting. In plant-swam landboukundige ekostelsels kan dit veroorsaak dat patogene swampopulasies vinniger aanpas by beheerpragramme soos fungisiedtoediening. Die eerste gedeelte in deel 1 van hierdie verhandeling dek die verskillende aspekte van geslagtelike voortplanting van ascomycetes, met spesifieke verwysing na paringstipe gene, vegetatiewe onverenigbaarheid en rekombinasie. Die grootste gedeelte van die oorsig word gewyaan verskeie plantpatologiese aspekte van P. teres,en wys veralop die verskille tussen die twee tipes. In verskeie gevalle word die betekenis van geslagsrekombinasie binne en tussen die net- en koltipe uitgelig. Deur morfologiese kenmerke vir identifikasiedoeleindes te gebruik, is daar baie teenstrydige verslae rakende die identifikasie van blaarvlekisolate in die Westlike Kaapprovinsie van Suid-Afrika. In deel 2 is die korrekte identifikasie eventueel verkry deur gebruik te maak van paringstudies en molekulêre merkers. Dit is bereik nadat enkel ascospore verkry is uit pseudothecia gevorm na in vitro paring plaasgevind het tussen 'n bevestigde P. teres netvlek isolaat uit Denemarke en 'n verteenwoordigende Pyrenophora blaarvlekisolaat van Suid- Afrika. Deur gebruik te maak van versterkte fragmentlengte polimorfisme [AFLP] en RAPD merkers, is rekombinasie gedemonstreer in die nasate wat DNA bandpatrone gehad het wat verskil het van dié van die "ouer" isolate. Patogenisiteitstoetse het ook bevestig dat rekombinasie tydens paring plaasgevind het. Inokulasies is uitgevoer op die verskillende cultivars wat vatbaar is vir die netvlek en blaarvlek vorme. Die twee ouers het tipiese netvlek of blaarvlek simptome veroorsaak, terwyl die nasate hoekige vlekke veroorsaak het op elke cultivar. Toetse vir fungisiedsensitiwiteit deur gebruik van die ergosterol biosintese inhibeerders het gewys dat a.g.v. rekombinasie sekere nasate verhoogde weerstand teen hierdie fungisiedes het. As gevolg van paring en daaropvolgende rekombinasie tussen 'n netvlek isolaat van P. teres en 'n verteenwoordigende blaarvlek isolaat is afgelei dat laasgenoemde P. teres f. maculata is. Vyftien van die netvlek hibried nakomelinge (F1) verkry van die paringstudie in deel 2 is ondersoek in deel 3 om hul lewensvatbaarheid en genetiese stabiliteit te bepaal. Hibried nasate (F1) geïnokuleer op garssaailinge bestaande uit die volgende cultivars: Stirling (soms vatbaar vir net-tipe isolate) , B87/14 en Clipper (albei soms vatbaar vir kol-tipe isolate) het intermediêre simptome op al die cultivars veroorsaak. Akseniese kulture (F1-1) geïsoleer uit blaarletsels gevolg deur herhaalde inokulasie en isolasie (F1-2) op 'n gesonde stel saailinge het dieselfde intermediêre simptome veroorsaak. RAPDs uitgevoer met twee 10-mer inleiers op al die isolate van F1-1 en F1-2 nasate het profiele opgelewer soortgelyk aan dié wat vir F1 isolate verkry is. RAPD molekulêre data het dus gewys dat die hibried nasate van hierdie net x kol paring geneties stabiel was nadat dit onderwerp is aan twee inokulasie en reïsolasie siklusse. Genetiese stabiliteit van die hibried nageslag is bevestig deur filogenetiese analise van die DNA volgorde van die interne getranskribeerde spasieerders (ITS1 en ITS2) reg langs die 5.8S nukluêre ribosomale RNA geen en die 5' end gedeeltelike histoon-3 geen. Hierdie resultate het ook gewys dat die hibried nasate konstante simptome getoon het tydens die hele reeks eksperimente en hulle virulensie behou het vir die kultivars wat getoets is. Beide tipes van P. teres kom algemeen voor in die suidelike deel van die Westelike Kaapprovinsie en word gevind op vatbare cultivars wat dikwels naby mekaar groei. In deel 4 is 'n net- en kol-tipe populasie gekarakteriseer in terme van hulle populasiestruktuur deur gebruik van RAPD merkers. Monsters is versamel van geïnfekteerde garsblare van twee aparte kwadrante in elke saailand. Die twee kwadrante is geplaas in die hoeke van die saailand, diagonaal tot mekaar. 'n Totaal van 65 lokusse is gevorm, waarvan 54 polimorfies was. Die algehele genetiese verskeidenheid bepaal vir alle lokusse, het gelei tot gemiddelde indekse van 0.063 en 0.082 soos gevind vir die net- en kol-tipe populasies. 'n Koëffisiënt van genetiese differensiasie (Gs ) van 0.0149 is gevind tussen gebiede tussen populasies, terwyl 'n koëffisiënt (GT) van 0.63 gevind is tussen die twee populasies. Genotipiese variasie het 13 duidelike multilokus genotipes (haplotipes) getoon in die net-tipe populasie, terwyl daar twaalf was in die kol-tipe populasie. UPGMA groeperingsanalises wat gedoen is op die twee populasies tesame met ses nasate van die paring van 'n net- en koltipe isolaat het tot gevolg gehad dat drie hoof groepe gevorm is, een vir elke populasie en een vir die nasate. Een isolaat wat versamel is, van die net-tipe populasie het 'n unieke kol-tipe RAPD fragment bevat. Dit wys daarop dat geslagtelike rekombinasie in veldomstandighede mag voorkom tussen isolate van die net- en kol-tipe. Fungisiedtoediening is die belangrikste metode wat gebruik word om netvlek in Suid-Afrika te beheer. In deel 5 is die fungisiedsensitiwteit (Ieso waardes) van 89 enkelkonidiale isolate (46 net-tipe en 43 kol-tipe) van P. teres teen sterol demetielasie inhiberende fungisiedes bepaal, op die basis van die onderdrukkende effek op die radiale groei van die miselium. Die volgende fungisiedes is geëvalueer: triadimenol, bromuconazole, flusilazole, propiconazole en tebuconazole. Beide net- en kol-tipe isolate het 'n sterk weerstand teen triadimenol openbaar, terwyl flusilazole gevind is as die sterkste onderdrukker van swamgroei. Kol-tipe isolate het 'n hoër weerstand as die net-tipe isolate teen al vyf fungisiedes wat getoets is, gehad. Die lesowaardes het aangedui dat daar beduidende verskille tussen vier van die fungisiedes IS (triadimenol, tebuconazole, flusilazole en propiconazole). Die leso waardes tussen propiconazole en bromuconazole was nie beduidend nie. Die gevolgtrekking van hierdie studie is dus dat die kol-tipe isolate 'n hoër graad van weerstand teen kommersiëel gebruikte fungisiedes as die net-tipe isolate gehad het. Die algehele gevolgtrekking van hierdie studie is dat die kol-tipe van P. teres, die patogeen is wat geassosieer word met blaarvlekke op gars in die suidwestelike Kaapprovinsie van Suid-Afrika, en nie P. japonica soos voorheen gerapporteer nie. Tesame met die net-tipe, kom altwee tipes voor as geneties veranderlike populasies in hierdie gars verbouingstreek. Paring tussen die twee tipes lei tot geslagtelike nasate wat geneties stabiel is. Dit impliseer dat aangrensende garsvelde waarop net- óf kol-tipe vatbare kultivars verbou word, mag lei tot die produksie van geslagtelike nasate. Dit kan weer lei tot 'n verhoogde tempo waarteen swampopulasies weerstandbiedend teenoor kommersiële fungisiedes raak. Daar word verder ook voorgestel dat alternatiewe fungisied saadbehandelings gebruik word in plaas van triadimenol as gevolg van verhoogde weerstand van P. teres teenoor laasgenoemde.
Agostinetto, Lenita. « Inóculo na semente, transmissão de Bipolaris sorokiniana e Drechslera teres e desenvolvimento de epidemia em cevada ». Universidade do Estado de Santa Catarina, 2014. http://tede.udesc.br/handle/handle/511.
Texte intégralBrown spot (Bipolaris sorokiniana) and net blotch (Drechslera teres) are the main foliar diseases of barley in southern of Brazil. The objectives of this study were to evaluate the survival and viability of B. sorokiniana and D. teres on barley seeds during the off seasons and verify the influence of different barley seed treatments on: a. The fungi transmission to plants; b. The population of emerged plants; c. The brown spot and net-blotch intensity; d. The productivity; e. The seed health and f. the number of captured spores in the air. Barley seeds of six cultivars from four regions were used for viability analysis. Seed sanity tests were developed during ten months. Samples of 400 seeds were disinfected by sodium hypochlorite (4%) and whashed by sterile distilled water. The samples were plated in the Potato Dextrose Agar medium and incubated in growth chamber for seven to ten days. Field experiments were carried out with two barley cultivars sowed in two different dates of 2012 and 2013 growing season. The experiments were performed with treatments, control (without fungicide seed treatment), commercial treatment and additional laboratory treatments. The experiments were conducted in a randomized block design with four replications. The number of symptomatic plants with brown spot and net-blotch diseases was assessed from five to seven days intervals during 40 days. The incidence and severity foliar were quantified from 40 to 95 days after sowing in ten tillers randomly per plot. Collectors spores like windmill with microscope slide smeared with a mixture of phenol + hexane + Vaseline + paraffin were installed in the field. The microscope slides were changed weekly, and the collectors remained in the field up to the 38 plant ear emergence. Grain yield, grain classification and thousand kernels was assessed during the harvest and the seeds submitted to pathology test. The incidence and viability of B. sorokiniana and D. teres reduced with the storage. The viability average reduction of B. sorokiniana and D. teres was 27% and 30% in the off season, respectively. None of the simultaneus seed treatments eradicated the fungi. Seed treatments allowed fungi transmission to the plant leaves. Seeds commercial treatment was not effective in the fungi eradication, allowing up to 90% transmission to plants. Additional seed treatments reduced up tp 89% the fungi transmission. Commercial seed treatment showed the AUDPCS of 519.0 and 139.0 for net blotch and brown spot, respectively. The most efficient seed treatment was triadimenol + difenoconazol + carbendazim + thiamethoxam, reducing the B. sorokiniana and D. teres AUSPC in 11.4 and 120.5, respectively. The highest fungi conidia capturing occurred in field under commercial treatment seeds. There was a positive and significant correlation (r = 0.89 B. sorokiniana and r = 0.70 D. teres) between the number of spores in the air and severity. Seed treatment influenced the sanitary quality of barley seeds. There is a significant and positive correlation (r = 0.99) between the brown spot and net-blotch AUDPC and the incidence of B. sorokiniana and D. teres in the harvested seed. Commercial seed treatment did not reduce the B. sorokiniana and D. teres inocula in barley seeds. Additional, commercial seed treatment anticipated the begining of brown spot and net blotch epidemic, increasing yield costs. All other treatments did not eradicate the fungi. However, they delayed the bigining of diseases, enabling the farmer profit increase
A mancha-marrom (Bipolaris sorokiniana) e a mancha-em-rede (Drechslera teres) são as principais doenças fúngicas foliares da cevada no sul do Brasil. Os objetivos foram: quantificar a sobrevivência e a viabilidade de B. sorokiniana e D. teres em sementes de cevada durante a entressafra e verificar o efeito de diferentes tratamentos de sementes de cevada na transmissão dos fungos para a parte aérea das plantas, na população de plantas emersas, na intensidade da mancha marrom e da mancha-em-rede, na produtividade, na sanidade de sementes colhidas e no número de conídios capturados no ar. Foram utilizadas sementes de cevada de seis cultivares oriundas de quatro regiões para a análise de viabilidade. Os testes de sanidade foram desenvolvidos durante dez meses. Amostras de 400 sementes foram desinfestadas em hipoclorito de sódio (4%) e água destilada esterilizada, distribuídas em meio de cultura Batata-Dextrose-Ágar e encubadas em câmara de crescimento durante sete a dez dias. Os experimentos de campo foram conduzidos em 2012 e 2013 em duas épocas de semeadura e duas cultivares. Os tratamentos utilizados foram: testemunha (sem tratamento fungicida de sementes), tratamento comercial e tratamentos adicionais testados em laboratório. O modelo experimental foi em blocos casualisados e quatro repetições. O número de plantas sintomáticas com mancha marrom e mancha-em-rede foi quantificado em intervalos de cinco a sete dias até 40 dias após a semeadura. A incidência e a severidade foliar foram quantificadas desde os 40 até os 95 dias após a semeadura em dez perfilhos coletados ao acaso de cada parcela. Foram instalados coletores de esporos tipo cata-vento contendo lâmina de microscopia untada com mistura de fenol+hexano+vaselina+parafina. As lâminas foram trocadas semanalmente, e os coletores permaneceram no campo até o espigamento das plantas. Na colheita, foi quantificado rendimento de grãos, classificação e massa de mil grãos. As sementes colhidas foram submetidas ao teste de sanidade de sementes. Houve redução da incidência e da viabilidade de B. sorokiniana e D. teres com o armazenamento. A redução média viabilidade de B. sorokiniana e D. teres foi de 27% e 30% na entressafra, respectivamente. Nenhum dos tratamentos erradicou os fungos simultaneamente das sementes e possibilitaram transmissão para a parte aérea as plantas. O tratamento comercial de sementes não foi eficiente na erradicação dos patógenos com transmissão para a parte aérea de até 90%. Tratamentos de sementes adicionais reduziram a transmissão dos fungos em até 89%. O tratamento comercial de sementes antecipou as doenças foliares com AACPS de até 519,0 de mancha em rede e 139,0 de mancha marrom. O tratamento de semente mais eficiente (triadimenol + difenoconazol + carbendazim + tiametoxan) reduziu a AACPS das doenças em 11,4 e 120,5, respectivamente. A maior captura de conídios no ar dos fungos ocorreu nas plantas submetidas ao tratamento comercial de sementes havendo correlação positiva e significativa (r = 0,89 B. sorokiniana e r = 0,70 D. teres) entre número de conídios no ar e severidade das doenças. O tratamento de semente utilizado influenciou a qualidade sanitária das sementes de cevada produzidas, com correlação significativa e positiva (r=0,99) entre AACPS da mancha marrom e da mancha-em-rede e incidência de B. sorokiniana e D. teres nas sementes colhidas. O tratamento comercial de sementes não reduziu o inóculo de B. sorokiniana e D. teres das sementes de cevada, antecipa a epidemia da mancha marrom e mancha-em-rede e aumenta custo de produção. Os demais tratamentos apesar de não erradicar os fungos, retardam as doenças e aumentam o lucro do agricultor
Veillet, Isabelle. « Triangulation spatiale de bloc d'images SPOT ». Observatoire de Paris, 1991. https://hal.archives-ouvertes.fr/tel-02095460.
Texte intégralBesides its image quality, the main advantage of Sport system is its geometric accuracy. The aim of this study is the evaluation of what block adjustment can bring to Spot images geometric processing, in order to process together all the images of a space mapping project. The actual advantage of this kind of computation is shown here. Before, a model of the image-ground relationship must be given. The proposed model is simple, robust and close to the physical image acquisition. With very few control points, the resulting accuracy is less than 10 meters in planimetry, and 6 meters in altimetry. These figures fit most standards of 1:50000 scale topographic maps. Without any ground control point, the accuracy is 15 meters on 200 km x 200 km area
Salehin, S. M. Akramus. « Using decoys to block SPIT in the IMS ». Master's thesis, University of Cape Town, 2007. http://hdl.handle.net/11427/5110.
Texte intégralIn recent years, studies have shown that 80-85% of e-mails sent were spam. Another form of spam that has just surfaced is VoIP (Voice over Internet Telephony) spam. Currently, VoIP has seen an increasing numbers of users due to the cheap rates. With the introduction of the IMS (IP Multimedia Subsystem), the number of VoIP users are expected to increase dramatically. This calls for a cause of concern, as the tools and methods that have been used for blocking email spam may not be suitable for real-time voice calls. In addition, VoIP phones will have URI type addresses, so the same methods that were used to generate automated e-mail spam messages can be employed for unsolicited voice calls. Spammers will always be present to take advantage of and adapt to trends in communication technology. Therefore, it is important that IMS have structures in place to alleviate the problems of spam. Recent solutions proposed to block SPIT (Spam over Internet Telephony) have the following shortcomings: restricting the users to trusted senders, causing delays in voice call set-up, reducing the efficiency of the system by increasing burden on proxies which have to do some form of bayesian or statistical filtering, and requiring dramatic changes in the protocols being used. The proposed decoying system for the IMS fits well with the existing protocol structure, and customers are oblivious of its operation.
Fischer, Sebastian [Verfasser]. « Kinematische und dynamische Analyse des Schwimmstarts vom Block unter besonderer Berücksichtigung der Eintauch- und Übergangsphase / Sebastian Fischer ». Kassel : Universitätsbibliothek Kassel, 2013. http://d-nb.info/1035222221/34.
Texte intégralXia, Xiaoping. « Spot U-Pband Hf isotope analyses of detrital zircons from the khondalites in the western block of the North China craton ». Click to view the E-thesis via HKUTO, 2005. http://sunzi.lib.hku.hk/hkuto/record/B35773698.
Texte intégralXia, Xiaoping, et 夏小平. « Spot U-Pband Hf isotope analyses of detrital zircons from the khondalites in the western block of the North China craton ». Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B35773698.
Texte intégralSchmutz, Amandine. « Contributions à l'analyse de données fonctionnelles multivariées, application à l'étude de la locomotion du cheval de sport ». Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1241.
Texte intégralWith the growth of smart devices market to provide athletes and trainers a systematic, objective and reliable follow-up, more and more parameters are monitored for a same individual. An alternative to laboratory evaluation methods is the use of inertial sensors which allow following the performance without hindering it, without space limits and without tedious initialization procedures. Data collected by those sensors can be classified as multivariate functional data: some quantitative entities evolving along time and collected simultaneously for a same individual. The aim of this thesis is to find parameters for analysing the athlete horse locomotion thanks to a sensor put in the saddle. This connected device (inertial sensor, IMU) for equestrian sports allows the collection of acceleration and angular velocity along time in the three space directions and with a sampling frequency of 100 Hz. The database used for model development is made of 3221 canter strides from 58 ridden jumping horses of different age and level of competition. Two different protocols are used to collect data: one for straight path and one for curved path. We restricted our work to the prediction of three parameters: the speed per stride, the stride length and the jump quality. To meet the first to objectives, we developed a multivariate functional clustering method that allow the division of the database into smaller more homogeneous sub-groups from the collected signals point of view. This method allows the characterization of each group by it average profile, which ease the data understanding and interpretation. But surprisingly, this clustering model did not improve the results of speed prediction, Support Vector Machine (SVM) is the model with the lowest percentage of error above 0.6 m/s. The same applied for the stride length where an accuracy of 20 cm is reached thanks to SVM model. Those results can be explained by the fact that our database is build from 58 horses only, which is a quite low number of individuals for a clustering method. Then we extend this method to the co-clustering of multivariate functional data in order to ease the datamining of horses’ follow-up databases. This method might allow the detection and prevention of locomotor disturbances, main source of interruption of jumping horses. Lastly, we looked for correlation between jumping quality and signals collected by the IMU. First results show that signals collected by the saddle alone are not sufficient to differentiate finely the jumping quality. Additional information will be needed, for example using complementary sensors or by expanding the database to have a more diverse range of horses and jump profiles
Block, Janis [Verfasser]. « Geschlechtergleichheit im Sport : Mit besonderer Berücksichtigung der Diskriminierung von trans- und intersexuellen Sportlerinnen unter den Vorschriften des Allgemeinen Gleichbehandlungsgesetzes / Janis Block ». Baden-Baden : Nomos Verlagsgesellschaft mbH & ; Co. KG, 2014. http://d-nb.info/1107606187/34.
Texte intégralPainter, Keith B., G. Gregory Haff, Michael W. Ramsey, Jeff McBride, N. Travis Triplett, William A. Sands, Hugh S. Lamont, Margaret E. Stone et Michael H. Stone. « Strength Gains : Block Vs DUP Weight-Training among Track and Field Athletes ». Digital Commons @ East Tennessee State University, 2012. https://dc.etsu.edu/etsu-works/4132.
Texte intégralSouth, Mark A., Andrew S. Layne, N. Travis Triplett, William A. Sands, Satoshi Mizuguchi, W. Guy Hornsby, Ashley Kavanaugh et Michael H. Stone. « Effects of Short‐Term Free‐Weight and Semi‐block Periodization Resistance Training on Metabolic Syndrome ». Digital Commons @ East Tennessee State University, 2016. https://dc.etsu.edu/etsu-works/5094.
Texte intégralGeffroy, Stefan, Niklas Bauer, Tobias Mielke, Stephan Wegner, Stefan Gels, Hubertus Murrenhoff et Katharina Schmitz. « Optimization of the tribological contact of valve plate and cylinder block within axial piston machines ». Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71109.
Texte intégralPainter, Keith B., Gregory N. Haff, Travis Triplett, Charles A. Stuart, Guy Hornsby, Michael W. Ramsey, Caleb D. Bazyler et Michael H. Stone. « Resting Hormone Alterations and Injuries : Block vs “Daily Undulating Periodization” Weight-Training Among Division I Track And Field Athletes ». Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/etsu-works/5794.
Texte intégralPainter, Keith B., G. Gregory Haff, N. Travis Triplett, Charles Stuart, Guy Hornsby, Mike W. Ramsey, Caleb D. Bazyler et Michael H. Stone. « Resting Hormone Alterations and Injuries : Block vs. DUP Weight-Training among D-1 Track and Field Athletes ». Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/etsu-works/3777.
Texte intégralHodálová, Lenka. « RING ! - Dostavba městského okruhu v Brně ». Master's thesis, Vysoké učení technické v Brně. Fakulta architektury, 2013. http://www.nusl.cz/ntk/nusl-216019.
Texte intégralHaff, G. Gregory, Keith B. Painter, Michael W. Ramsey, N. Travis Triplett, Jeff McBride, C. Stuart, Michael H. Stone et Margaret E. Stone. « Comparison of Block Versus Dup Training among Division-1 (D-1) Collegiate Track and Field Athletes : An Exploratory Study ». Digital Commons @ East Tennessee State University, 2010. https://dc.etsu.edu/etsu-works/4530.
Texte intégralHaff, G. Gregory, Keith B. Painter, Michael W. Ramsey, N. Travis Triplett, Jeff McBride, Charles Stuart, William A. Sands, Margaret E. Stone et Michael H. Stone. « Comparison Of Block Versus Dup Training Among Division-1 (D-1) Collegiate Track And Field Athletes : An Exploratory Study ». Digital Commons @ East Tennessee State University, 2010. https://dc.etsu.edu/etsu-works/4092.
Texte intégralYoshida, Nobuhisa, Caleb D. Bazyler, Takahiro Unebasami, Stephen Wells, Zachary Whitman, Danielle Lee, Mallory Stellhorn, Kimitake Sato et Michael H. Stone. « Countermovement Jump Performance Changes over the Course of Collegiate Basketball Pre-Season Associated with Block Periodization Model of Strength and Conditioning Program ». Digital Commons @ East Tennessee State University, 2015. https://dc.etsu.edu/etsu-works/5796.
Texte intégralFiolo, N., et Michael H. Stone. « The Effects of a Short-term Block Periodized Strength Training Program on Force Production and Running Economy and Kinematics in a Highly Trained Marathon Runner ». Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/etsu-works/4569.
Texte intégralSuarez, Dylan G., Satoshi Mizuguchi, William Guy Hornsby, Aaron J. Cunanan, Donald J. Marsh et Michael H. Stone. « Phase- Specific Changes in Rate of Force Development and Muscle Morphology throughout a Block Periodized Training Cycle in Weightlifters ». Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/etsu-works/6292.
Texte intégralLeščevičius, Rimvydas. « Sportininkų amžiaus ir meistriškumo įtaka 20 metrų bėgimo iš aukšto ir žemo starto rezultatui ». Bachelor's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130910_154053-01263.
Texte intégralThe object: The athletes of all ages 20 meters running from the high and low start results The main aim: Analysis of the athletes of all ages 20 meters running from standing and block start results and their reasons for the difference. Objectives of the study: 1. Determine the difference between the results of different age of athletes running 20 meters from standing and block start. 2. Determine the difference between the results of the 20 meters of running from standing and block start reason child age group. 3. Determine the difference between the results of 20 meters of running from standing and block start of the adult age group. Research: Different age sprinters. Hypothesis: For younger sprinters show improved results over 20 meters from a high of start than the low start. The main results:9-14 years-old athlete running 20 meters have shown better results fleeing from a standing start, the average of the results are 3,81±0,3 (s). 15-16 years-old athlete running 20 meters have shown similar results but fleeing from both the standing and the block starts, the average of the results are 3,65±0,2 (s). And, the oldest runners 21-23 years-old had showed the best score while running from the block acceleration, their the average of the results are 3,21±0,15 (s.). By 2013 9-14 years-old athletes results, we can see, that they also had showed better results over time from a standing start 3,75±0,2 (s), running from a block start 3,93±0,3 (s). High-skills athletes running from... [to full text]
Tran, Hoang Long. « Dětská léčebna se speleoterapií Ostrov u Macochy ». Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-394037.
Texte intégralVondál, Pavel. « Ubytovací zařízení ». Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-391911.
Texte intégralHornsby, W. Guy, Jeremy A. Gentles, Christopher J. MacDonald, Satoshi Mizuguchi, Michael W. Ramsey et Michael H. Stone. « Maximum Strength, Rate of Force Development, Jump Height, and Peak Power Alterations in Weightlifters across Five Months of Training ». Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/etsu-works/4114.
Texte intégralValová, Eva. « Město místo továrny - polyfunkční městský blok na Starém Brně ». Master's thesis, Vysoké učení technické v Brně. Fakulta architektury, 2010. http://www.nusl.cz/ntk/nusl-215673.
Texte intégralŠrajerová, Hana. « Město místo továrny - polyfunkční městský blok na Starém Brně ». Master's thesis, Vysoké učení technické v Brně. Fakulta architektury, 2010. http://www.nusl.cz/ntk/nusl-215669.
Texte intégralMichalíková, Petra. « Řešení brownfields v rámci České republiky - Tepna Náchod ». Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-400004.
Texte intégralManclová, Miroslava. « Brněnské nábřeží - rehabilitace brněnských řek a jejich blízkého okolí ». Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-355039.
Texte intégralFroňková, Dominika. « Řešení brownfields v rámci České republiky - Tepna Náchod ». Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-402993.
Texte intégralSoška, Jakub. « Řešení brownfields v rámci České republiky - Tepna Náchod ». Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-400102.
Texte intégralVrba, Petr. « Brněnské nábřeží - rehabilitace brněnských řek a jejich blízkého okolí ». Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-355022.
Texte intégralChvátal, Michal. « Řízení dodávky vody v rodinném domě ». Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442453.
Texte intégralOSMAN, MOHAMED. « New sources of resistance to fungal leaf and head blight diseases of wheat ». Doctoral thesis, 2016. http://hdl.handle.net/2158/1029253.
Texte intégralSarpeleh, Abolfazi. « Role of Pyrenophora teres toxins in net blotch of barley ». 2007. http://hdl.handle.net/2440/47025.
Texte intégralhttp://proxy.library.adelaide.edu.au/login?url= http://library.adelaide.edu.au/cgi-bin/Pwebrecon.cgi?BBID=1297672
Thesis (Ph.D.) -- University of Adelaide, School of Agriculture, Food and Wine, 2007
Sarpeleh, Abolfazi. « Role of Pyrenophora teres toxins in net blotch of barley ». Thesis, 2007. http://hdl.handle.net/2440/47025.
Texte intégralThesis (Ph.D.) -- University of Adelaide, School of Agriculture, Food and Wine, 2007
« PERSEVERANCE THROUGH MENTAL BLOCKING : EXPLORING COACH-ATHLETE DYADIC RELATIONSHIPS ». Thesis, 2015. http://hdl.handle.net/10388/ETD-2015-05-2152.
Texte intégralBlaz, Filipe Miguel Beja. « Relatório do estágio realizado na Câmara Municipal de Lisboa – Departamento da Atividade Física e do Desporto - programa de apoio à educação física curricular do 1º Ciclo do Ensino Básico – bloco de natação ». Master's thesis, 2019. http://hdl.handle.net/10400.5/19489.
Texte intégralThe objective of this report is to examine whether the implementation of the Program to Support the Physical Education Curriculum – Swimming Block (P.A.E.F.C. - Swimming Block) resulted in a change of the reality of the sports city of Lisbon and to what extent this change was positive. In particular, it seeks to know the importance, influence and impact the program has had on the elementary school students (1st to 4th grade) that collaborate with the Swimming Block. The study presented in this report has three fundamental points: focusing on the impact of swimming at the Sea Club Program, and in the São Vicente (Alfama) pool, both in the academic year 2017/2018; in reviews of the Technical Directors of the pools that collaborate with the Swimming Block; and in the analysis of the trend that the program has been present since its implementation to the present. The completion of the study went through various stages of development, particularly in the first data collection and analysis, allowing for the compilation and conclusion of the analysis of all the information with its fundamental key points, as a whole. Confronting the data, it is possible to conclude that the P.A.E.F.C. – Swimming Block has been increasing its influence in the county of Lisbon due to the fact that it has grown in many aspects over the years since its implementation. The Swimming Block has positively grown when in regards to its previously defined objectives in the aims of providing the basic and fundamental conditions regarding the adaptation to the aquatic environment and swimming education, which are considered core skills in the formative process of children under the “Expressão e Educação Física Motora” official curricular programme. It has also generally evolved with respect to its social value, particularly through providing education to students by sports figures. Therefore, it is possible to confirm that the implementation of the Swimming Block has led to a positive change in the county of Lisbon in regards to the reality of sports, as the programme’s data concludes, ever since it was implemented. In conclusion, through the implementation of the P.A.E.F.C. – Swimming Block, the Municipal Council of Lisbon has grown positively within its sports panorama, by using sports as a method of contributing to the sustainable development of the city, putting it on par with the panorama Página | 6 of the modern European cities, self-defined as “sustainable cities” or most recently as “inteligente cities”. According to the (United Nations Office on Sport for Development and Peace, 2014) in “2030 Agenda for Sustainable Development”: Sports are seen as a great contributer to sustainable development and peace, through the promotion of tolerance, respect, empowerment of women and the youth, community, as well as health, education and social inclusion.