Dissertations / Theses on the topic 'ZGA'
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GNOCCHI, ANDREA. "UNDERSTANDING THE IMPACT OF REPLICATION STRESS ON THE EXPRESSION OF EARLY GENES IN MOUSE EMBRYONIC STEM CELLS." Doctoral thesis, Università degli Studi di Milano, 2021. http://hdl.handle.net/2434/814703.
Full textWilliams, Samuel S. "Zig Zag Wanderer." ScholarWorks@UNO, 2017. http://scholarworks.uno.edu/td/2341.
Full textShea, Lauren Elizabeth. "ZnGa₂O₄ and ZnGa₂O₄:Mn²⁺ for potential use in vacuum fluorescent displays /." This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-01102009-063207/.
Full textBiderbost, Yvo. "Die Erziehungsbeistandschaft (Art. 308 ZGB) /." Freiburg, Schweiz : Univ.-Verl, 1996. http://www.gbv.de/dms/spk/sbb/recht/toc/271953764.pdf.
Full textZeiter, Alexandra. "Die Erbstiftung : (Art. 493 ZGB) /." Freiburg, Schweiz : Univ-Verl, 2001. http://www.gbv.de/dms/sbb-berlin/325801371.pdf.
Full textKälin, Oliver. "Der Sachbegriff im schweizerischen ZGB /." Zürich : Schulthess, 2002. http://www.gbv.de/dms/sbb-berlin/348873166.pdf.
Full textAndriolli, Clodoaldo Fadani. "Controle químico da podridão de giberela em espigas de milho pela aplicação de fungicida no espigamento." Universidade do Estado de Santa Catarina, 2014. http://tede.udesc.br/handle/handle/1225.
Full textIn southern Brazil, Fusarium Head Blight (FHB) caused by the fungus Fusarium graminearum is severe disease because the fungus is abundant in winter and summer crop residues, which helps inoculation in susceptible maize hybrids when have excessive periods of rain after pollination phase. This research aimed to determine the best time to spray fungicide during maize silking to control FHB. The experiment was conducted in field at the experimental area of Agroveterinarias Sciences Center at the Santa Catarina State University (CAV/UDESC) in Lages, Santa Catarina. Were seeded simple hybrids P32R48 H and Maximus TL TG Viptera during two periods in the growing seasons of 2012/13 and 2013/14. After five days of stigma emergence, the ears were artificially inoculated with 1 x 105 macroconídios.mL-1 concentration of F. graminearum injecting 2 ml of inoculum solution in stigma-style channel. Inoculations happen in 03/08/2013, 03/22/2013, 12/26/2013 and 01/19/2014. The fungicide was a mixture of azoxystrobin + cyproconazole (300 mL c.p/ha) + carbendazim (1 L c.p/ha) + nimbus mineral oil (0.5% v.v/ha). The treats were six fungicide spray times: 144, 96 and 48 hours before inoculation; 48, 96 and 144 hours after inoculation and a control, only inoculated without fungicide application. The experiment design was randomized block with four replications. The fungicide was applied with a manual CO2 gas sprayer. The variables evaluated were severity of FHB in the ears (SGE), percentage of damaged kernels (PGA), incidence of F. graminearum in the grains (IFgG) and grain yield (RG). Data were subjected to variance analysis, Tukey´s test and simple correlation analysis. The hybrid P32R48H was more susceptible than Maximus TL TG Viptera to FHB. Sprays 48 hours before and after inoculation were effective to reduce SGE in approximately 50% and 41%; to reduce PGA by 33% and 50%; to reduce IFgG by 27%; and to increase RG by 9% and 7%, respectively when compared to control. There is a negative linear correlation between SGE, PGA, IFgG and RG variables. The yield and grain quality were improved by fungicide spray between the 3rd and 7th day period after stigma issue
Na região Sul do Brasil, a podridão de espiga de giberela, causada pelo fungo Fusarium graminearum, é uma doença preocupante, pois o fungo é abundante nos resíduos culturais das gramíneas de inverno e de verão, o que facilita a sua inoculação nas espigas de híbridos suscetíveis em safras com excesso de chuva após a fase da polinização. Este trabalho de pesquisa teve como objetivo definir o melhor momento para pulverização de fungicida durante o estádio do espigamento do milho para controlar a podridão de espiga de giberela. O experimento foi conduzido à campo, na área experimental do Centro de Ciências Agroveterinárias da Universidade do Estado de Santa Catarina (CAV/UDESC) no município de Lages, Santa Catarina. Foram semeados os híbridos simples P32R48 H e Maximus TL TG Viptera, em duas épocas nas safras agrícolas de 2012/13 e 2013/14. Após cinco dias da emissão dos estigmas, as espigas foram inoculadas artificialmente com uma concentração de 1 x 105 macroconídios.mL-1 de F. graminearum injetando 2 mL da solução de inóculo no canal do estilo-estigma. As inoculações foram realizadas nos dias 08/03/2013, 22/03/2013, 26/12/2013 e 19/01/2014. O fungicida utilizado foi a mistura de azoxistrobina + ciproconazole (300 mL p.c/ha) + carbendazim (1 L p.c/ha) + oléo mineral Nimbus (0,5% v.v./ha). Os tratamentos constituiram-se em seis momentos de pulverização do fungicida: 144, 96 e 48 horas antes da inoculação; 48, 96 e 144 horas depois da inoculação e uma testemunha, somente inoculado sem aplicação de fungicida. A distribuição dos tratamentos seguiu o modelo do delineamento em blocos casualizados, com quatro repetições. O fungicida foi aplicado com o auxílio de pulverizador costal com pressão produzida por gás CO2. As variáveis avaliadas foram severidade da giberela nas espigas (SGE), porcentagem de grãos ardidos (PGA), incidência de F. graminearum nos grãos (IFgG) e rendimento de grãos (RG). Os dados obtidos foram submetidos à análise de variância, ao teste de Tukey e a análise de correlação simples. O híbrido P32R48H apresentou-se mais suscetível a podridão de giberela. As pulverizações 48 horas antes e depois da inoculação foram eficientes em reduzir a SGE em aproximadamente 50% e 41%; em reduzir a PGA em 33% e 50%; em reduzir a IFgG em 27%; e em aumentar o RG em 9% e 7%, respectivamente quando comparados ao tratamento sem fungicida. Existe associação entre as variáveis SGE, PGA, IFgG e RG. Pode-se aumentar o rendimento e melhorar a qualidade de grãos com a aplicação de fungicida no período do 3º ao 7º dia após a emissão dos estigmas
Peräläinen, Lina. "Variations in the performance of maize (Zea mayz) yield under reclaimed wastewater irrigation in south-eastern Australia : management of salinity, water and nutrient budgets /." Umeå : Sveriges lantbruksuniversitet, 2006. http://epsilon.slu.se/10320999.pdf.
Full textMaillet, Daniel Stewart. "Nuclear organization in Zea mays L." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ58406.pdf.
Full textDixon, David Peter. "Glutathione transferases in maize (Zea mays)." Thesis, Durham University, 1998. http://etheses.dur.ac.uk/4788/.
Full textSouthgate, Elizabeth M. "Genetic manipulation of Zea mays L." Thesis, University of Nottingham, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319613.
Full textLoven, Bjoern. "The zea shipsheds - topography and architecture." Thesis, Royal Holloway, University of London, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.529037.
Full textANSELMO, MARCELLA. "Automates bilateres et codes zig-zag." Paris 7, 1990. http://www.theses.fr/1990PA077005.
Full textMolina, Belver María del Carmen. "Estudios citogenéticos evolutivos del género Zea." Doctoral thesis, Universitat Politècnica de València, 2011. http://hdl.handle.net/10251/9912.
Full textMolina Belver, MDC. (2011). Estudios citogenéticos evolutivos del género Zea [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/9912
Palancia
Ambrose, Barbara A. "Floral organ specification in Zea mays /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2000. http://wwwlib.umi.com/cr/ucsd/fullcit?p9970673.
Full textNais, Juliana [UNESP]. "Infestação de Spodoptera frugiperda e Helicoverpa zea (Lepidoptera: Noctuidae) em híbridos comerciais de milho (Zea mays L.)." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/102279.
Full textConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
O milho é uma das plantas domesticadas pelo homem mais antigas do mundo e sua produção se torna ameaçada diante do ataque de pragas. Dentre elas destacam-se a lagarta-do-cartucho Spodoptera frugiperda e a lagarta-da-espiga Helicoverpa zea. A S. frugiperda ataca preferencialmente o cartucho das plantas consumindo grande parte da área foliar antes de as folhas se desenvolverem. A H. zea é referida prejudicando a cultura atacando os estilo-estigmas e alimentando-se dos grãos leitosos. Para promover o manejo dessas pragas com a mínima utilização de agrotóxicos, a tecnologia das plantas geneticamente modificadas tem sido objeto de estudos. Neste trabalho, os objetivos foram avaliar a infestação de lagartas e injúrias de S. frugiperda e determinar o comportamento de oviposição, intensidade de infestação, danos nos estilo-estigmas e espigas provocados por H. zea em condições de campo, em híbridos convencionais e transgênicos. Os híbridos foram semeados na safrinha de 2010 e na safra de 2010/2011, em delineamento de blocos ao acaso, com sete tratamentos (híbridos) e quatro repetições. Diferentes níveis de infestação ocorreram durante os experimentos nos híbridos Bt e não Bt. O híbrido 2B710HX foi o menos infestado com lagartas de S. frugiperda e o menos danificado, o que se conclui que a expressão da toxina Cry1F foi a mais efetiva na proteção da planta, independente da época de semeadura. Os híbridos que expressam a toxina Cry1Ab e Cry1F foram os mais efetivos no controle da H. zea em Jaboticabal, independente da época de semeadura. Em Pindorama, SP, a toxina Cry1F apresentaram bons resultados contra a infestação de lagartas
The maize is a plant domesticated by humans world’s oldest and your production becomes threatened before the attack of pests. Among the pest that attack maize stand out the fall armyworn Spodoptera frugiperda and the bollworm Helicoverpa zea. S. frugiperda attacks preferably the maize plants consuming much of the leaf area before the leaves develop. H. zea hurting the culture attacking style-stigma and destroying the mand. In order to promote the management of these pests with minimal use of pesticides, the technology of genetically modified plants has been the subject of many studies. In this paper, the objective was to evaluate the infestation and injuries of S. frugiperda and determine the oviposition behavior, intensity of infestation, damage to the style-stigma and in ear caused by H. zea in field conditions in conventional and transgenic maize hybrids. The hybrids were planted in the harvest in the summer of 2010 and in harvest 2010/2011, in a randomized blocks with seven treatments (hybrids) and four replications. Different levels of infestation of larvae occurred throughout the development of conventional and transgenic hybrids. The hybrid 2B710HX was the least infested with larvae of S. frugiperda and the least damaged, which concludes that the Cry1F toxin was the most effective in protecting the plant, regardless of time of sowing. The hybrids expressing the Cry11Ab and Cry1F toxin were most effective in controlling H. zea in Jaboticabal, SP, regardless of sowing time. In Pindorama, SP, toxin Cry1F showed good results against the infestation of caterpillars
Nais, Juliana. "Infestação de Spodoptera frugiperda e Helicoverpa zea (Lepidoptera: Noctuidae) em híbridos comerciais de milho (Zea mays L.) /." Jaboticabal : [s.n.], 2012. http://hdl.handle.net/11449/102279.
Full textCoorientador: Marcos Doniseti Michelotto
Banca: Aildson Pereira Duarte
Banca: Julio César Guerreiro
Banca: Arlindo Leal Boiça Júnior
Banca: Ricardo Antonio Polanczyk
Resumo: O milho é uma das plantas domesticadas pelo homem mais antigas do mundo e sua produção se torna ameaçada diante do ataque de pragas. Dentre elas destacam-se a lagarta-do-cartucho Spodoptera frugiperda e a lagarta-da-espiga Helicoverpa zea. A S. frugiperda ataca preferencialmente o cartucho das plantas consumindo grande parte da área foliar antes de as folhas se desenvolverem. A H. zea é referida prejudicando a cultura atacando os estilo-estigmas e alimentando-se dos grãos leitosos. Para promover o manejo dessas pragas com a mínima utilização de agrotóxicos, a tecnologia das plantas geneticamente modificadas tem sido objeto de estudos. Neste trabalho, os objetivos foram avaliar a infestação de lagartas e injúrias de S. frugiperda e determinar o comportamento de oviposição, intensidade de infestação, danos nos estilo-estigmas e espigas provocados por H. zea em condições de campo, em híbridos convencionais e transgênicos. Os híbridos foram semeados na safrinha de 2010 e na safra de 2010/2011, em delineamento de blocos ao acaso, com sete tratamentos (híbridos) e quatro repetições. Diferentes níveis de infestação ocorreram durante os experimentos nos híbridos Bt e não Bt. O híbrido 2B710HX foi o menos infestado com lagartas de S. frugiperda e o menos danificado, o que se conclui que a expressão da toxina Cry1F foi a mais efetiva na proteção da planta, independente da época de semeadura. Os híbridos que expressam a toxina Cry1Ab e Cry1F foram os mais efetivos no controle da H. zea em Jaboticabal, independente da época de semeadura. Em Pindorama, SP, a toxina Cry1F apresentaram bons resultados contra a infestação de lagartas
Abstract: The maize is a plant domesticated by humans world's oldest and your production becomes threatened before the attack of pests. Among the pest that attack maize stand out the fall armyworn Spodoptera frugiperda and the bollworm Helicoverpa zea. S. frugiperda attacks preferably the maize plants consuming much of the leaf area before the leaves develop. H. zea hurting the culture attacking style-stigma and destroying the mand. In order to promote the management of these pests with minimal use of pesticides, the technology of genetically modified plants has been the subject of many studies. In this paper, the objective was to evaluate the infestation and injuries of S. frugiperda and determine the oviposition behavior, intensity of infestation, damage to the style-stigma and in ear caused by H. zea in field conditions in conventional and transgenic maize hybrids. The hybrids were planted in the harvest in the summer of 2010 and in harvest 2010/2011, in a randomized blocks with seven treatments (hybrids) and four replications. Different levels of infestation of larvae occurred throughout the development of conventional and transgenic hybrids. The hybrid 2B710HX was the least infested with larvae of S. frugiperda and the least damaged, which concludes that the Cry1F toxin was the most effective in protecting the plant, regardless of time of sowing. The hybrids expressing the Cry11Ab and Cry1F toxin were most effective in controlling H. zea in Jaboticabal, SP, regardless of sowing time. In Pindorama, SP, toxin Cry1F showed good results against the infestation of caterpillars
Doutor
Fustier, Margaux-Alison. "Adaptation locale des téosintes Zea mays ssp. parviglumis et Zea mays ssp. mexicana le long de gradients altitudinaux." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS147/document.
Full textTeosintes Zea mays ssp parviglumis (parviglumis) and Zea mays ssp mexicana (mexicana) are the closest wild relatives of cultivated maize. They occupy distinct ecological niches in Mexico, well separated by altitude. Zea mays ssp. parviglumis encountered below 1800m grows in wet and warm conditions, while mexicana grows in drier and colder climates (above 1800m). In order to investigate the genetic bases of local adaptation to altitude, we sampled 37 populations along two altitudinal gradients. We sequenced the two most extreme populations of each gradient as well as two intermediate populations - one from each subspecies along gradient 1. We searched for polymorphisms with contrasted allele frequencies between the extremes while accounting for subspecies differentiation. Using both inter- and intra- population methods we identified several candidate loci. Based on a literature review, we confronted them with regions previously described as involved in phenotypic variation of adaptive traits. Our results highlight the role of plant-soil interactions and leaves hairiness in the adaptation to altitude. To validate further a subset of 270 polymorphisms chosen among our best candidates, we genotyped them on the 37 populations with the aim of performing clinal analyzes of allele frequencies. In parallel, we undertook phenotypic evaluation trials (2 locations x 2 years) to test the association of these polymorphisms with 18 traits measured in the field. We discuss the methodological contributions of our study both from the standpoint of high throughput technologies and detection of selective footprints. Our setting will be fully exploited to validate our candidates. Perspectives include the discovery and assessment of the contribution of other types of polymorphisms and the temporal follow-up of populations
Bohmann, David John 1959. "SYNERGISM OF PERMETHRIN BY CHLORDIMEFORM IN THE TOBACCO BUDWORM (LEPIDOPTERA: NOCTUIDAE)." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/276615.
Full textKelly, Suzanne Eleanor 1960. "Metabolism and penetration of permethrin in resistant and susceptible strains of tobacco budworm, Heliothis virescens (F)." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276876.
Full textKerbach, Sandra. "Sequenz-spezifische Rekombination in Zea mays L." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=974050342.
Full textSchmälzlin, Karolin. "Expressionsanalyse der DIMBOA-Biosynthese in Zea mays." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=967440459.
Full textLöffler, Christoph [Verfasser]. "Die Straftatbestände des Zahlungsdiensteaufsichtsgesetzes (ZAG) / Christoph Löffler." Baden-Baden : Nomos Verlagsgesellschaft mbH & Co. KG, 2017. http://d-nb.info/1126261793/34.
Full textChou, Tau-San Weber David F. "Sister chromatid exchanges in Zea mays L." Normal, Ill. Illinois State University, 1985. http://wwwlib.umi.com/cr/ilstu/fullcit?p8514768.
Full textTitle from title page screen, viewed June 7, 2005. Dissertation Committee: David F. Weber (chair), Herman Brockman, Tsan Iang Chuang, Alan Katz, Derek McCracken. Includes bibliographical references (leaves 118-142) and abstract. Also available in print.
Almeida, Cícero Carlos de Souza. "Análise citogenética e molecular em milho (Zea mays subsp. mays), teosinto (Zea mays susp. mexicana) e em seus híbridos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2003. http://hdl.handle.net/10183/4419.
Full textZanocco, Matteo <1989>. "Raman spectroscopic analysis of zirconia toughened alumina ceramic (ZTA) in presence of different metal stains and ZTA retrieval femoral heads." Master's Degree Thesis, Università Ca' Foscari Venezia, 2016. http://hdl.handle.net/10579/8683.
Full textChaves, Elisiane Inês Dall'oglio. "Diversidade de bactérias endofíticas obtidas de solos do oeste do paraná usando milho e trigo como planta isca." Universidade Estadual do Oeste do Paraná, 2013. http://tede.unioeste.br:8080/tede/handle/tede/1452.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior
The plant growth promoting bacteria constitute a large group of plant associated microorganisms that has a huge potential to be explored for beneficial contribution in plant growing. In this context, the aim of this work was to study the diversity of endophytic bacteria obtained from soils in western Paraná, using plants such as wheat and corn baits and evaluate the potential of isolates to promote plant growth (PCV). A total of 136 endophytic bacteria isolates were obtaines from roots in three different locations: area 1 (Argissolo vermelho), area 2 (Latossolo vermelho) and area 3 (Nitossolo vermelho). A total of 136 endophytic bacteria strains were isolated from roots in three different locations: area 1 (Argissolo vermelho), area 2 (Latossolo vermelho) and area 3 (Nitossolo vermelho). The isolates were evaluated for their ability to solubilize insoluble phosphate in NBRIP medium and also their ability to synthesize auxin in DYGS medium. Eighty-four bacterial strains were analyzed by molecular analysis of polymorphism by ARDRA and 41 of these fragments were sequenced 16S rDNA. Six isolates randomly chosen were evaluated according to their ability in promoting the plant growth in vitro, where from these, two contrasting isolates were evaluated for their performances in pots. As results for biochemical characterization, from 136 isolates, 51 % showed no phosphate solubilizing capacity, 14 % had a low level of phosphate solubilization index (ISF) low (IS<2), 9.5% medium (IS<4) and 25.5% higher (IS≥4), the higher ISF was verified in UFPRPALM 3-66 (7.66). IAA (indole-3-acetic) values ranged from 19.94 (UFPRPALM1 -134) to 1170.98 mg IAA mg protein-1 (UFPRPALM 2-32) without tryptophan addition and adding this aminoacid , only 42 strains (31%) were able to produce IAA in higher levels ranging from 362.18 (UFPRPALM 3-65) to 5599.57 (UFPRPALM 3-80) mg IAA mg protein -1. The polymorphism analysis revealed by ARDRA bacterial 8 groups with 70% dissimilarity and only 8 isolates showed clonal profile. The sequences of the 16S rDNA allowed the grouping of 41 isolates in eight different phylogenetic groups, among these the bacteria of the genus: Agrobacterium, Shigella, Stenotrophomonas, Enterobacter, Pantoea, Pseudomonas, Ensifer, Brevibacillus, Escherichia, Acinetobacter, Bacillus and Burkholderia. Of these, six isolates producing IAA and P-solubilization ability wich were evaluated for in vitro growth capacity were chosen. Isolated in this experiment, two contrasting were characterized: UFPRPALM 3-87 (Burkholderia ambifaria), more and UFPRPALT 1-14 (Pantoea ananatis), with lower ability to promote the growth of wheat seedlings in vitro, respectively. In the pot experiment, the isolates showed no responses of plant growth promotion in high fertility soils, but at low fertility condition, the genus Pantoea (UFPRPALT 1-14) showed the best performance in terms of increases in nitrogen concentration of shoots in wheat. There was a differential response of the isolates in terms of epiphytic and endophytic microbial population and between plant species and conditions of fertilization and/or inoculation
As bactérias promotoras de crescimento vegetal constituem um amplo grupo de microrganismos, que associados às plantas representam um enorme potencial a ser explorado, por contribuírem beneficamente com o crescimento de várias espécies vegetais. Neste contexto, o objetivo do presente trabalho foi estudar a diversidade de bactérias endofíticas obtidas de solos do oeste do Paraná, usando plantas de milho e trigo como iscas e avaliar o potencial dos isolados para a promoção do crescimento vegetal (PCV). Foram obtidos 136 isolados bacterianos provenientes de raízes de trigo e milho semeadas em três diferentes locais: área 1 (Argissolo vermelho), área 2 (Latossolo vermelho) e área 3 (Nitossolo vermelho). Os isolados foram avaliados quanto à capacidade de solubilizar fosfato insolúveis em meio NBRIP e quanto à capacidade de sintetizar auxina em meio DYGS. Oitenta e quatro estirpes bacterianas foram analisadas molecularmente através da análise de polimorfismo por ARDRA e 41 destas tiveram fragmentos do gene 16S rDNA sequenciados. A avaliação da capacidade de promoção de crescimento de seis dos isolados foi realizada in vitro, onde destes, dois isolados contrastantes foram avaliados quanto as suas performances em vaso. Como resultados obtidos, dos 136 isolados, 51% não apresentaram capacidade solubilizadora de fosfato, 14% apresentaram índice de solubilização de fosfato (ISF) baixo (IS<2), 9,5% médio (IS<4) e 25,5% alto (IS≥4), destacando-se o isolado UFPRPALM 3-66 (ISF 7,66). Os valores de AIA (ácido indol-3-acético) variaram entre 19,94 μg de AIA mg-1 de proteína (UFPRPALM1-134) a 1170,98 μg de AIA mg-1 de proteína (UFPRPALM 2-32), sem a adição de triptofano, e com adição de triptofano, apenas 42 isolados (31%) foram capazes de produzir AIA, sendo os níveis maiores variando de 362,18 (UFPRPALM 3-65) a 5599,57 (UFPRPALM 3-80) μg de AIA mg-1 de proteína. A análise de polimorfismo por ARDRA revelou 8 grupos bacterianos com 70% de dissimilaridade e apenas 8 isolados apresentaram perfil clonal. As sequencias do gene 16S rDNA permitiu o agrupamento dos 41 isolados em oito grupos filogenéticos diferentes, entre estes estão as bactérias do gênero: Agrobacterium, Shigella, Stenotrophomonas, Enterobacter, Pantoea, Pseudomonas, Ensifer, Brevibacillus, Escherichia, Acinetobacter, Bacillus e Burkholderia. Destes, foram escolhidos seis isolados produtores de AIA e solubilizadores de P que foram avaliados in vitro quanto a capacidade de crescimento. Neste experimento, dois isolados contrastantes foram caracterizados: UFPRPALM 3-87 (Burkholderia ambifaria), com maior e o UFPRPALT 1-14 (Pantoea ananatis), de menor capacidade de promoção de crescimento das plântulas de trigo in vitro, respectivamente. Em vaso, os isolados não apresentaram respostas de promoção de crescimento vegetal em solos de alta fertilidade, mas em condições de baixa fertilidade, o gênero Pantoea (UFPRPALT 1-14) foi o que apresentou a melhor performance em termos de aumentos dos teores de nitrogênio da parte aérea em trigo. Houve uma resposta diferencial dos isolados em termos de população microbiana epifífica e endofítica entre espécies vegetais e condições de fertilização e/ou inoculação
Melgar, Lazo Deyvis. "Confiabilidad en sistemas con transformadores de potencia con devanado de compensación interna o aterramiento ficticio externo mediante transformador Zig-Zag." Bachelor's thesis, Universidad Continental, 2019. http://repositorio.continental.edu.pe/handle/continental/5637.
Full textBauer, Matthew J. "The interploidy hybridization barrier in Zea Mays L." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4448.
Full textThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on July 31, 2007) Includes bibliographical references.
Lamb, Jonathan C. "Centromere function and evolution in maize (Zea mays)." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4446.
Full textThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on August 3, 2007) Includes bibliographical references.
Winata, T. Therry Indra. "Mapping in the Maydeae : Tripsacum genes in Zea." Virtual Press, 2000. http://liblink.bsu.edu/uhtbin/catkey/1180788.
Full textDepartment of Biology
Hales, Virginia Carey. "Molecular analysis of chilling sensitivity in Zea mays." Thesis, University of Essex, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265199.
Full textBriars, Sally-Anne. "The calmodulin stimulated ATPase of Zea mays L." Thesis, University of Oxford, 1989. http://ora.ox.ac.uk/objects/uuid:afa92f78-633d-4ae5-8cf5-37ac077acab2.
Full textAraya, Frías María José. "Variabilidad Morfológica en Maíz Choclero ( Zea mays L.)." Tesis, Universidad de Chile, 2008. http://repositorio.uchile.cl/handle/2250/101696.
Full textFeijão, Alexcyane Rodrigues. "Crescimento, trocas gasosas, partição de íons e metabolismo do nitrogênio em plantas de milho submetidas à salinidade e diferentes fontes de N." reponame:Repositório Institucional da UFC, 2009. http://www.repositorio.ufc.br/handle/riufc/9736.
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This work aimed to study the effect of N source in the growing, gas exchanges, ion partitions and N metabolism in maize plants (Zea mays L.) submitted to salinity. For this, maize seeds were sown in plastic cups with vermiculite and maintained in greenhouse. After that, the seedlings were transferred to a hydroponics culture with N concentration of 6 mM, in the forms of NO3-, NO3-/NH4+ or NH4+. After five days in these conditions, we started the addition of NaCl, which was gradually increased each day by 25 mM until it reaches a final concentration of 100 mM. The harvests were carried out 4, 11 and 18 days after the beginning of the salt treatment. In control conditions, the plants fed with the mixed NO3-/NH4+ were the ones which presented the greatest shoot growth, compared to other N treatments. There was a great growth reduction when the plants were submitted to salinity, but this effect was not influenced by the N source used. Generally, the salinity reduced the stomatal conductance (gs), transpiration (E), photosynthesis (A) and the relation between the intercellular and outercellular CO2 concentration (Ci/Co ) in plants of all N treatments and in different times of harvest. However, in plants fed with NH4+ and after 18 day of salt treatment a great reduction in the gs, A and E and an increase in the Ci/Co ratio were observed. The Na+ contents increased with salinity, despite that, in plants fed with NH4+, these contents were lower than in the other N treatments in salinity conditions. The K+ contents, on the other hand, were reduced by salinity, and the plants fed with the mixed NO3-/ NH4+ and only NH4+ absorbed less K+ than the ones fed only with NO3-, mainly in the leaves and stems of plants after 11 days and in leaves and roots of plants after 18 days of salt stress. This way, there was influence of N source in the Na+/K+ ratio, particularly in roots of plants after 18 days of exposure to salt stress, whose lower increases in this parameter were observed in the plants treated only with NO3-. The greatest increments in the Cl- contents caused by salinity were observed in plants fed with NO3- and with the mixed NO3-/ NH4+. However, in control conditions, these contents were increased in leaves and stems of plants fed only with NH4+. The NO3- contents were higher in plants fed with NO3- and NO3-/NH4+, when compared to the ones fed only with NH4+, both in control and salinity conditions. The greatest and lowest Cl-/NO3- ratio were found, respectively, in plants treated with NO3- and with NH4+. The shoot NH4+ contents were little influenced by salinity or by N source, however, in roots of plants fed with NH4+ and under salinity, there was a great accumulation of these ions after 18 days of stress. The soluble carbohydrates contents, in general, increased by salinity, except in the leaves and stems (after 18 days of salt stress) and in the roots (during all the experimental period) of the plants treated with NH4+. Generally, the soluble proteins and soluble amino acids contents were increased by salinity, and the biggest quantities of these solutes were observed in the roots of plants fed with NH4+ and after 18 days of salt stress. The total N contents were reduced by salinity and it was observed especially in plants fed only with NO3-. In the leaves, the activities of nitrate reductase (NR) and nitrite reductase (NiR) were greater in plants fed with NO3- and with the mixed NO3-/ NH4+. Little influence of salinity in NiR activity was observed in maize leaves. In the leaves, the salinity influenced differently the activity of glutamine synthetase (GS) between the different sources of N and time of salt exposure. However, in the roots, in general, the GS activity increased withy salinity, except for the plants fed with NH4+, which were not influenced by this stress. After 18 days of salt exposure, the GS activity was greater in the plants fed with NH4+, compared to the other N treatments. The activity of glutamate synthase (GOGAT), in the leaves, in generral, increased with salinity, despite that, this activity was reduced in the roots mainly in the plants fed with NO3-, after 4 days, and with NH4+, after 11 and 18 days. These results suggest that the several N sources did not influence the tolerance of maize plants to salinity. However, the plants fed with NO3- had better results in ion relations. And greatest GS activities observed in roots of the plants fed with NH4+, after 18 days of stress, helped in the osmotic adjustment, as a consequence of the accumulation of soluble proteins and soluble amino acids.
O objetivo deste trabalho foi estudar o efeito da fonte de N no crescimento, nas trocas gasosas, na partição de íons e no metabolismo do N em plantas de milho (Zea mays L.) submetidas à salinidade. Para isto, sementes de milho foram semeadas em copos plásticos contendo vermiculita, sendo mantidas em casa de vegetação. Em seguida, as plântulas foram transferidas para um meio hidropônico com concentração de N igual a 6 mM, nas formas de NO3-, NO3-/NH4+ ou NH4+. Após cinco dias nestas condições, iniciou-se a adição de NaCl, que foi feita em parcelas de 25 mM por dia, até atingir a concentração final de 100 mM. As coletas foram realizadas aos 4, 11 e 18 dias após o início do tratamento salino. Em condições controle, as plantas nutridas com a mistura NO3-/NH4+ foram as que apresentaram o maior crescimento da parte aérea, em comparação aos demais tratamentos de N. Houve uma forte redução do crescimento quando as plantas foram submetidas à salinidade, mas este efeito foi independente da fonte de N empregada. De maneira geral, a salinidade reduziu a condutância estomática (gs), a transpiração (E), a fotossíntese (A) e a relação entre a concentração interna e externa de CO2 (Ci/Co) das plantas de todos os tratamentos de N e nos diferentes tempos de coleta. Entretanto, nas plantas cultivadas com NH4+ e aos 18 dias do tratamento salino, foram observados uma redução acentuada na gs, A e E e um aumento na relação Ci/Co. Os teores de Na+ aumentaram com a salinidade, contudo, nas plantas nutridas com NH4+, esses teores foram menores do que os dos demais tratamentos de N em condições de salinidade. Os teores de K+, por sua vez, foram reduzidos pela salinidade, sendo que as plantas nutridas com a mistura NO3-/ NH4+ e apenas NH4+ absorveram menos K+ do que as cultivadas apenas com NO3-, principalmente nas folhas e colmos das plantas aos 11 dias e nas folhas e raízes das plantas aos 18 dias de estresse salino. Dessa forma, houve influência da fonte de N na relação Na+/K+, particularmente nas raízes das plantas aos 18 dias de exposição ao estresse salino, cujos menores aumentos nesse parâmetro foram observados nas plantas tratadas apenas com NO3-. Os maiores incrementos nos teores de Cl- causados pela salinidade foram observados nas plantas cultivadas com NO3- e com a mistura NO3-/ NH4+. Porém, em condições controle, esses teores foram aumentados nas folhas e colmos das plantas cultivadas apenas com NH4+. Os teores de NO3- foram maiores nas plantas nutridas com NO3- e NO3-/NH4+, quando comparadas às nutridas somente com NH4+, tanto em condições controle quanto de salinidade. A maior e a menor relação Cl-/NO3- foram encontradas, respectivamente, nas plantas tratadas com NO3- e com NH4+. Os teores de NH4+ da parte aérea foram pouco influenciados pela salinidade ou pela fonte de N, porém, nas raízes das plantas nutridas com NH4+ e sob salinidade, houve um grande acúmulo desses íons aos 18 dias de estresse. Os teores de carboidratos solúveis foram, em geral, aumentados pela salinidade, com exceção nas folhas e colmos (aos 18 dias de estresse salino) e nas raízes (durante todo o período experimental) das plantas tratadas com NH4+. De maneira geral, os teores de proteínas solúveis e de N-aminossolúveis foram aumentados pela salinidade, sendo que as maiores quantidades destes solutos foram observadas nas raízes das plantas tratadas com NH4+ e aos 18 dias de estresse salino. Os teores de N-total foram reduzidos pela salinidade, sendo isto observado especialmente nas plantas nutridas apenas com NO3-. Nas folhas, as atividades da redutase do nitrato (NR) e da redutase do nitrito (NiR) foram maiores nas plantas tratadas com NO3- e com a mistura NO3-/ NH4+. Foi observada pouca influência da salinidade na atividade da NiR das folhas de milho. Nas folhas, a salinidade influenciou diferentemente a atividade da sintetase da glutamina (GS) entre as diferentes fontes de N e tempos de exposição à salinidade. Porém, nas raízes, de maneira geral, a atividade da GS aumentou com a salinidade, com exceção das plantas tratadas com NH4+, que não foram influenciadas por este estresse. Aos 18 dias de exposição à salinidade, a atividade da GS foi maior nas plantas tratadas com NH4+, em comparação com os demais tratamentos de N. A atividade da sintase do glutamato (GOGAT), nas folhas, em geral, aumentou com a salinidade, contudo, nas raízes essa atividade foi reduzida principalmente nas plantas cultivadas com NO3-, aos 4 dias, e com NH4+, aos 11 e 18 dias. Esses resultados sugerem que as diversas fontes de N não influenciaram na tolerância das plantas de milho à salinidade, entretanto as plantas nutridas com NO3- foram melhores nas relações iônicas e as maiores atividades da GS observadas nas raízes das plantas cultivadas com NH4+, aos 18 dias de estresse, ajudaram no ajustamento osmótico, como conseqüência do acúmulo de proteínas solúveis e N-aminossolúveis.
Busanello, Carlos. "ESTUDO DA ADAPTABILIDADE E ESTABILIDADE EM HÍBRIDOS SIMPLES E TRIPLOS DE MILHO NA REGIÃO SUL DO BRASIL." Universidade Federal de Santa Maria, 2012. http://repositorio.ufsm.br/handle/1/4914.
Full textThe study of adaptability and stability, as well as the predictability of genotypes regarding the study of environments is extremely important in the positioning of corn hybrids, whether they are simple or triple. The development of high quality seed hybrids requires years of research and testing to evaluate its potential and scope for its recommendation. The adaptability and stability analysis has the purpose to supply this information. Therefore, the objective was to elucidate these parameters for the south region of Brazil by testing both simple and triple hybrids in five different representative sites. A total of 27 simple hybrids and 20 triple hybrids were used in a complete randomized block design with three replications. The method for evaluating the stability and adaptability used was proposed by Russell Eberhart in 1966. By the end of the survey it was possible to indicate that 52% of the simple hybrids tested were adapted (β > 1) and 60% of the triple hybrid also followed the same pattern for yield. For the character mass of cob the adaptability was of 44% and 55% for the simple hybrids and triples hybrids respectively. For stability (S²d) it was identified that all the hybrids have levels superior to 80% independent of the feature evaluated. In that sense, it is possible to state that the great majority of the tested genotypes have predictability for both grain yield as well as cob mass. Thus the method used is efficient to determine hybrids for the region of the study and also to predict their behavior in different environmental conditions.
O estudo da adaptabilidade e estabilidade, bem como a previsibilidade de genótipos frente aos ambientes de cultivo é extremamente importante no posicionamento de híbridos de milho, sejam eles simples, duplos ou triplos. O desenvolvimento de sementes com alta qualidade requer anos de pesquisa e testes para avaliar seu potencial e abrangência para sua recomendação. A análise de adaptabilidade e estabilidade tem o propósito de suprir estas informações. Para tanto objetivou-se elucidar tais parâmetros para a Região Sul do Brasil, com ensaios de híbridos simples e híbridos triplos em cinco locais representativos. Foram utilizados 27 híbridos simples e 20 triplos em esquema de blocos completos ao acaso com três repetições. O método para avaliar a adaptabilidade e estabilidade utilizado foi proposto por Eberhart e Russell em 1966. Ao final da pesquisa foi possível identificar que 52% dos híbridos simples testados foram adaptados (β > 1) e 60% dos híbridos triplos também seguiram a mesma tendência de rendimento; para o caractere massa de sabugo a adaptabilidade foi de 44% e 55% para os híbridos simples e triplos respectivamente. Para estabilidade (S²d) foi identificado que todos os híbridos possuem índices superiores a 80% independente da característica avaliada. Neste sentido temos que a grande maioria das constituições genéticas testadas possui previsibilidade tanto para rendimento de grãos bem como para massa de sabugo. Sendo assim o método utilizado é eficiente para determinar híbridos para a região em estudo, bem como prever o seu comportamento em diferentes condições de ambiente.
Mesquita, Josà Bruno Rego de. "INFLUENCE OF IRRIGATION, NITROGEN DOSES AND POTASSIUM APPLIED BY CONVENTIONAL AND METHOD FOR FERTIRRIGATION IN MAIZE." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15845.
Full textIn the Northeastern Brazil, particularly in the Cearà state, irrigated agriculture contributes significantly to agricultural production: fruit, vegetable and grain crops. The Maize (corn) culture, traditional in the Region, has great socio-economic importance, being the most cultivated by small, medium and large farmers, contributing to the generation of employment and income, keeping workers from migrating. The experiment was conducted in the experimental area of the EstaÃÃo AgrometeorolÃgica (agrometeorological station) of the Universidade Federal do CearÃ. The soil of the region is sandy red yellow podzolic. The experiment was carried out with AG-1051 hybrid maize. Localized drip irrigation was used in the experiment. The said experiment was performed through 2011 and 2012. The total acreage in each year was 602 m2, divided into three parts for installing each of the three (sub) experiments. The first (sub) experiment consisted in applying several irrigation levels based on Penman-Monteith EvapoTranspiration parametrized by FAO, corresponding to treatments: Li30, or 30% PMETo; Li60, or 60% PMETo; Li90, or 90% PMETo; Li120, or 120% PMETo; Li150, or 150% PMETo and Li180, or 180% PMETo. The experimental design was that of randomized blocks, with six treatments and five blocks (replicates). The second experiment consisted of evaluating the effects of different N doses, conventionally applied and applied by fertigation. The treatments were divided into F0 and C0 = 0.0 kg ha-1 (control); F45 = 45 kg ha-1 (fert); C45 = 45 kg ha-1 (conv); F90 = 90 kg ha-1 (fert); C90 = 90 kg ha-1 (conv); F180 = 180 kg ha-1 (fert); C180 = 180 kg ha-1 (conv). The third experiment consisted of evaluating the effects of different doses of K, conventionally applied and applied by fertigation. The treatments were divided into F0 and C0 = 0.0 kg ha-1 (control); F15 = 15 kg ha-1 (fert); C15 = 15 kg ha-1 (conv); F30 = 30 kg ha-1 (fert); C30 = 30 kg ha-1 (conv); F60 = 60 kg ha-1 (fert); C60 = 60 kg ha-1 (conv). The experimental design in the second and third (sub) experiments was that of randomized blocks in a 2x4 factorial arrangement with eight treatments and four replicates. Irrigation levels showed significant effects on the following variables: Corn cob with and without husks, thousand grain weight and productivity in both years, all adjusting to the second degree polynomial model. The irrigation level that maximized the yield of corn (maize) was estimated to be 124.2% of PMETo, for the climatic conditions of 2012. Regarding the nitrogen dose and its form of application, it was observed that fertigation was superior to conventional fertilization, and the variables Corn cob with and without husks and productivity showed significant effects for the application form and Nitrogen dose. The dose of nitrogen fertilizer that maximized the Maize (or corn) productivity was estimated at 123.2 kg ha-1. However, relatively to the K dose and its form of application, it was observed that the conventional fertilization did not differ from fertigation, in the two years evaluated. However, the K doses were statistically different for following the variables: Corn cob with and without husks and productivity. Conventionally applied, the K dose which maximized the crop yield was 82.0 kg ha-1 for the cultivation conditions of 2011.
Na regiÃo Nordeste, particularmente no CearÃ, a agricultura irrigada contribui bastante com a produÃÃo agrÃcola: frutas, hortaliÃas, olerÃcolas e grÃos. A cultura do milho, muito tradicional na RegiÃo, apresenta grande importÃncia socioeconÃmica, sendo a mais cultivada por pequenos, mÃdios e grandes agricultores, contribuindo para a geraÃÃo de emprego e renda e para fixaÃÃo do homem no campo. O experimento foi conduzido na Ãrea experimental da EstaÃÃo AgrometeorolÃgica da Universidade Federal do CearÃ. O solo da regiÃo à um argissolo vermelho amarelo de textura areia franca. O experimento foi com o milho hÃbrido AG-1051. O sistema de irrigaÃÃo utilizado nos experimentos foi do tipo localizado por gotejamento. Os trabalhos foram conduzidos em dois anos agrÃcolas (2011 e 2012). A Ãrea total cultivada em cada ano foi de 602 m2, dividida em trÃs subÃreas, para instalaÃÃo de cada um dos trÃs experimentos. O primeiro experimento consistiu na aplicaÃÃo de lÃminas de irrigaÃÃo com base na ETo de Penman-Monteith (EToPM) parametrizada pela FAO, correspondendo aos tratamentos: Li30 â 30% EToPM; Li60 â 60% EToPM; Li90 â 90% EToPM; Li120 â 120% EToPM; Li150 â 150% EToPM e Li180 â 180% EToPM. O delineamento experimental utilizado foi em blocos ao acaso, composto de seis tratamentos e cinco blocos (repetiÃÃes). O segundo experimento consistiu em avaliar diferentes doses de N aplicadas de forma convencional e por fertirrigaÃÃo. Os tratamentos foram divididos em: F0 e C0 â 0,0 kg ha-1 (controle); F45 â 45 kg ha-1 (fert); C45 â 45 kg ha-1 (conv); F90 â 90 kg ha-1 (fert); C90 â 90 kg ha-1 (conv); F180 â 180 kg ha-1 (fert); C180 â 180 kg ha-1 (conv). O terceiro experimento consistiu em avaliar diferentes doses de K aplicadas de maneira convencional e por fertirrigaÃÃo. Os tratamentos foram divididos em: F0 e C0 â 0,0 kg ha-1 (controle); F15 â 15 kg ha-1 (fert); C15â 15 kg ha-1 (conv); F30 â 30 kg ha-1 (fert); C30 â 30 kg ha-1 (conv); F60 â 60 kg ha-1 (fert); C60 â 60 kg ha-1 (conv). O delineamento experimental utilizado no segundo e terceiro experimentos foi em blocos ao acaso, em arranjo fatorial 2x4 com oito tratamentos e quatro repetiÃÃes. As lÃminas de irrigaÃÃo apresentaram efeito significativo para as variÃveis: massa da espiga com e sem palha, massa de mil grÃos e produtividade nos dois anos agrÃcolas, ajustando-se ao modelo polinomial do segundo grau. A lÃmina de irrigaÃÃo que maximizou a produtividade do milho foi estimada em 124,2% da EToPM, para as condiÃÃes climÃticas do cultivo realizado em 2012. Em relaÃÃo à dose de N e sua forma de aplicaÃÃo, observou-se que a fertirrigaÃÃo foi superior à adubaÃÃo convencional, e que as variÃveis: massa da espiga com e sem palha e produtividade apresentaram efeitos significativos para a forma de aplicaÃÃo e dose de N. A dose do adubo nitrogenado que maximizou a produtividade do milho foi estimada em 123,2 kg ha-1. JÃ, para a dose de K e sua forma de aplicaÃÃo, observou-se que a adubaÃÃo convencional nÃo diferiu da fertirrigaÃÃo, nos dois anos avaliados. Entretanto, as doses de K foram estatisticamente diferentes para as variÃveis: massa da espiga com e sem palha e produtividade. Na forma convencional, a dose de potÃssio que maximizou a produtividade da cultura foi de 82,0 kg ha-1, para as condiÃÃes de cultivo em 2011.
Reis, Karina Lima. "Desenvolvimento de um método para estimativa da condutância hidráulica e avaliação da atividade de aquaporinas em plântulas de milho." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/11/11144/tde-28082013-105742/.
Full textThe water transport in plants is a complex process which involves passage through cell membranes. In them there are aquaporins, integral membrane proteins, that facilitate passive flux of water and small solutes. An important factor influencing the water transport in plants is root hydraulic conductance (LPr), which can contribute up to 50% of the water flow resistance in the plant. Various methods are proposed for estimating LPr, but the data are highly variable, even for the same plant species. Therefore, we intend to develop and propose a new methodology, the hydraulic suction system to estimate LPr and evaluate the contribution of aquaporins in root water transport in maize seedlings. The hydraulic suction system was built at the Laboratório de Estudos de Plantas sob Estresse (LEPSE / USP) in partnership with Laboritoire d\'Ecophysiologie Plants des sous Stress Environnementaux Montpellier, France. The experiments were conducted in LEPSE where the seedlings grew in the hydroponics greenhouse. To evaluate the activity of aquaporins was used treatment with hydrogen peroxide, which in millimolar concentrations inhibits water channels. The conductance measurements were performed at the same time of day, since the LPr itself and aquaporins presents the circadian rhythm. There was a 53% reduction in conductance peroxide treatment compared to control and significant correlation between LPr and pH, so that the pH increase caused a drop LPr probably caused by alterations in the abundance and/or activity of aquaporins in maize roots. These results indicate that the suction method was efficient in estimated hydraulic conductance, may be adopted as an alternative technique to estimate the LPr in plants.
Albrecht, Alfredo Junior Paiola. "Respostas do milho RR2/LL à aplicação de glyphosate e associações de herbicidas." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/11/11136/tde-01082016-181207/.
Full textIt is necessary to continue the information generation process from directed research, trying to characterize the current situation of the use of glyphosate and another herbicides applied in post-emergence, in corn Roundup Ready (RR2) culture, this by obtaining informations that can foment safer positioning of this technology. No doubt, this topic demands new researches, aiming to provide conditions that favor the sustainable use of this tool that has been showing high potential of use by Brazilian producers, providing these benefits related to the weeds control. The present work has the objective of evaluation of RR2 Corn replies, submitted to application managements, formulations and dosages of glyphosate herbicide and, also the replies of Corn RR2 and RR2/LL, to the application of different associations of herbicides. For that it was conducted experiments testing two managements, two formulations and five dosages of glyphosate (triple factorial 2x2x5), in corn of first crop (summer) and second crop (winter corn crops), during one sequence of two agricultural years (2012/13 and 2013/14), totalizing four experiments of 20 treatments each, that were performed in the experimental station of C.Vale Cooperativa Agroindustrial (Palotina-PR). Besides these, it was conducted one complementary experiment, with the same treatments, in an agricultural property in Marechal Cândido Rondon-PR, in the first crop of 2012/13. It was also realized two different experiments with eight treatments each, using glyphosate, ammoniunglufosinate and herbicides usually applied in conventional maize (atrazine and nicosulfuron), these were conducted in the first crop of 2012/13, and repeated in the first crop of 2013/14, both in an agricultural property in Marechal Cândido Rondon- PR. For data improvement, it was conducted more six experiments in a greenhouse (three in Piracicaba-SP and three in Palotina-PR), with the same treatments of the experiments carried out in field, with the purpose to reach additional information that allowed a better understanding of the crop behavior after being submitted to the treatments application. Several variables were analyzed related to the agronomic development of the crop (culture measurements, stem diameter, chlorophyll index, fresh and dry matter of the air part, root dry mass, productivity and weight of 100 grains) and related to quality of produced grains (germination test, proteins content, macro content and micronutrients). From the results achieved, it was shown that even by varying the formulation or management used, high dosages of glyphosate can be harmful to the development of RR2 corn and that also nicosulfuron and some triple associations of herbicides can bring damage to corn showing transgenic technologies that confer tolerance to herbicides.
Eckert, Caroline Thaís. "Avaliação da Produção de Etanol a partir de distintos Híbridos de Milho na Região Oeste do Paraná." Universidade Estadual do Oeste do Parana, 2016. http://tede.unioeste.br:8080/tede/handle/tede/800.
Full textWith the aim of find out what the best hybrid maize for ethanol production, according to characteristics of the state of Paraná Western region were evaluated 10 hybrids, and 9 have transgenic technology Bt and 1 conventional non-Bt . The experimental development, the field was conducted between February and October 2015, and used a randomized block with four replications, and the average test employee was Tukey test (≤0,05), along with Correlation Matrix (≤0,05) and Contrast Analysis (≤0,05). The laboratory tests were conducted productivity and yield of die (kg ha-1 and L ethanol ha-1), the starch content, of soluble solids, and the percentage of ethanol in the wort produced. The hybrids were in accordance with literature by the fact that the amount of biomass produced per hectare was relevant to the yield of ethanol liters per hectare, in the same way that the quality of the grains had been indispensable for the good performance of hybrids.
Com o objetivo de averiguar qual o melhor híbrido de milho para a produção de etanol, de acordo com características da região Oeste do estado do Paraná, foram avaliados 10 híbridos, sendo que 9 possuem tecnologia transgênica Bt e 1 convencional não-Bt . O desenvolvimento experimental, a campo, foi realizado entre os meses de fevereiro a outubro de 2015, sendo utilizado o delineamento experimental em blocos casualizados com quatro repetições, e o teste de média empregado foi o Teste de Tukey (≤0,05) juntamente com a Matriz de Correlação (≤0,05) e a Análise de Contraste (≤0,05). As análises laboratoriais realizadas foram de cunho de produtividade e rendimento (em kg ha-1 e L etanol ha-1), de conteúdo amiláceo, de sólidos solúveis e de percentual em etanol no mosto produzido. Os híbridos estiveram em conformidade com a literatura pelo fato de que a quantidade produzida de biomassa por hectare foi relevante para o rendimento em litros de etanol por hectare, da mesma forma que a qualidade dos grãos foi indispensável para que houvesse bom desempenho dos híbridos.
Souza, Cassiana Felipe de. "Desempenho agronômico e eficiência de utilização de nitrogênio por cultivares de milho." Universidade Federal Rural do Semi-Árido, 2017. http://bdtd.ufersa.edu.br:80/tede/handle/tede/728.
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Corn plays an important role in the social and cultural economy and development of several regions of Brazil. However, the productivity is considered low, being the management of nitrogen fertilization and selection of efficient cultivars in the use of nitrogen the main factors responsible for the low productivity of this crop. Thus, the objective of this work was to analyze the agronomic performance and efficiency of nitrogen use by corn cultivars for the production of green ears and grains. Two experiments were carried out, one to obtain green maize and another to corn grain, both in the didactic garden of the Department of Plant Sciences of the Universidade Federal Rural do Semi-árido (UFERSA), in the municipality of Mossoró-RN. The experimental design was in randomized blocks in a 2 x 3 factorial scheme, with five replications. The treatments consisted of the combination of two nitrogen doses (0 and 90 kg ha-1) and three corn cultivars (Cruzeta variety, Truck transgenic and AG 1051 hybrid). For green maize, we evaluated plant height and stem insertion, shoot diameter, dry mass of the plant, nitrogen, phosphorus and potassium accumulation, yield of green ears with straw and without straw and N efficiency indexes. For grain maize, we evaluated dry matter of the plant, nitrogen, phosphorus and potassium accumulation, grain yield and N efficiency indexes. In both experiments, the cultivars presented higher productive performance when fertilized with nitrogen and The AG 1051 hybrid was the most efficient in the use of nitrogen. The cultivars AG 1051 and Cruzeta presented the highest plant height and first spike insertion, and the cultivar Truck presented the highest leaf number and productivity. The highest accumulations of dry mass and NPK were observed in cultivars AG 1051 and Cruzeta. The leaves and the grains accumulated more nitrogen, whereas the stem and the cob accumulated more K. The cultivar Truck was the most indicated for the production of green corn
O milho possui importante papel na economia e desenvolvimento social e cultural de várias regiões do Brasil. No entanto, a produtividade é considerada baixa, sendo o manejo da adubação nitrogenada e a seleção de cultivares eficientes no uso do nitrogênio os principais fatores responsáveis pela baixa produtividade desta cultura. Assim, o objetivo deste trabalho foi analisar o desempenho agronômico e a eficiência do uso de nitrogênio por cultivares de milho para produção de espigas verdes e de grãos. Foram conduzidos dois experimentos, um para obtenção do milho verde e outro para milho grão, ambos na horta didática do Departamento de Ciências Vegetais da Universidade Federal Rural do Semi-Árido (UFERSA), no município de Mossoró-RN. O delineamento experimental foi em blocos ao acaso em esquema fatorial 2 x 3, com cinco repetições. Os tratamentos foram constituídos pela combinação de duas doses de nitrogênio (0 e 90 kg ha-1) e três cultivares de milho (variedade Cruzeta, transgênico Truck e o híbrido AG 1051). Para o milho verde, foram avaliados: altura da planta e da inserção da espiga, diâmetro do colmo, massa seca da planta, acúmulo de nitrogênio, fósforo e potássio, a produtividade de espigas verdes com palha e sem palha e os índices de eficiência do N. No milho grão, avaliaram-se a massa seca da planta, acúmulo de nitrogênio, fósforo e potássio, a produtividade de grãos e os índices de eficiência do N. Em ambos os experimentos, as cultivares apresentaram maior desempenho produtivo quando adubadas com nitrogênio e o híbrido AG 1051 foi o mais eficiente quanto ao uso do nitrogênio. As cultivares AG 1051 e Cruzeta apresentaram as maiores alturas de planta e de inserção da primeira espiga, e a cultivar Truck apresentou a maior prolificidade e número de folhas. Os maiores acúmulos de massa seca e de NPK foram observados nas cultivares AG 1051 e Cruzeta. As folhas e os grãos acumularam mais nitrogênio, ao passo que o caule e o sabugo acumularam mais K. A cultivar Truck foi a mais indicada para produção de milho verde
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Terra, Tatiana de Freitas. "Análises citogenéticas e moleculares em populações de milho (Zea mays L.), teosinto (Zea mexicana L.) e em híbridos entre as duas espécies." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2004. http://hdl.handle.net/10183/15452.
Full textThe success of a breeding program relies on the quality of the germplams used as a source for combination of important genes. Such combinations can derive from broad hybridization, even from ancient ancestors. However, for a constant increase in genetic gain in new varieties it is necessary to constantly generate populations with high frequency of agronomic trait genes. The Department of Crop Science of the College of Agronomy at the UFRGS (Universidade Federal do Rio Grande de Sul) started an ordinary maize-breeding program in 1998 and, latter on, a sweet maize program, which generated significant results at different scientific fields. Due to mutations, there have been found endosperm differences concerning textural properties, shape and amount in the current maize, so that they can be classified as ordinary, popcorn and sweet maize. As teosinte is a species related to maize, it can be used as source for important agronomical traits in this grainbreeding program, allowing hybridization and gene introgression. The objectives of this work were to cytogenetically analyze the genotypes of ordinary maize, popcorn, sweet maize, teosinte and hybrids derived from artificial crossings among original populations, as well as analyze genetic variability among these populations and the relationship within them by the use of microsatellite molecular markers (SSR). Generally, the data presented in this work indicate that the populations show a regular meiotic behavior. The hybrids present some anomalies, for example, presence of univalent, bridge and chromosomal fragments however, with no harm to grain pollen viability. It is possible to assure that the existing genetic variability in teosinte is superior to that found among the maize genotype, probable due to teosinte’s wild origin. These results confirm the close relation between the two species and suggest the possibility of using teosinte as source of genetic variability in a maize-breeding program.
Watson, Andrew. "Fusarium species associated with cob rot of maize (zea mays) and sweet corn (zea mays var. rugosa) in New South Wales, Australia." Thesis, The University of Sydney, 2009. https://hdl.handle.net/2123/28233.
Full textThompson, Iris Lee. "Agricultural Systems in Babati : Zea mays and its alternatives." Thesis, Södertörn University College, School of Life Sciences, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-2660.
Full textThis paper aims to give an understanding on the aspects that influences the choice of cropsand agricultural methods in Babati, Tanzania. Drought is a reoccurring problem in this part ofTanzania, which affects a majority of the towns’ farmers. This fact is likely to affect thechoice of crop as well as the limitations when it comes to the choices in cultivation. But thechoice itself has implications on its surrounding and can be affected by the surrounding. Tounderstand the circumstances, a wider picture will be depicted and an evaluation of thegeography of Babati and on its climate conditions. The results from this study suggest thatlack of crop rotation pose as a problem that should be studied. Furthermore, green manurefrom legumes and plants like Tithonia could be a less expensive alternative but can stillfunction as an effective fertilizer. Concerning the drought issue the study can not concludethat drought resistant crops would have any big improving effects. Nevertheless there is someevidence advocating that it could be apart of the solution in terms of avoiding some of thenegative effects brought on by drought.
Simoni, Fabiana De [UNESP]. "Deterioração controlada em sementes de milho (Zea mays L.)." Universidade Estadual Paulista (UNESP), 2003. http://hdl.handle.net/11449/96811.
Full textEsta pesquisa foi realizada no Laboratório de Análise de Sementes do Departamento de Produção Vegetal da Faculdade de Ciências Agrárias e Veterinárias/UNESP, Câmpus de Jaboticabal, com o objetivo de avaliar a qualidade fisiológica das sementes de milho através dos testes de germinação e vigor: envelhecimento acelerado (EA), condutividade elétrica (CE), teste de frio (TF), emergência em campo (EC), índice de velocidade de emergência (IVE) e também verificar se o teste de deterioração controlada (DC) é eficaz em diferenciar lotes de sementes quanto aos seus respectivos níveis de vigor. Foram utilizados cinco lotes de sementes de milho, obtidos da Syngenta Seeds - Matão-SP. A germinação e o vigor dos lotes de sementes de milho foram avaliados antes do armazenamento, e a três e seis meses após o armazenamento. O teor de água das sementes foi determinado na caracterização inicial dos lotes e após o envelhecimento acelerado e a deterioração controlada. Para a análise estatística utilizou-se o delineamento inteiramente casualizado em esquema fatorial, com quatro repetições, e a comparação das médias foi feita usando-se o teste de Tukey ao nível de 5% de probabilidade. Foram determinados também os coeficientes de correlação (r) entre os testes de vigor utilizados e o teste de deterioração controlada. De acordo com os resultados obtidos concluiu-se que: em geral o teste de deterioração controlada não foi eficiente em separar lotes de diferentes níveis de vigor de sementes de milho; considerando se o efeito da temperatura e o teor de água das sementes genericamente o que apresentou melhor resultado para o teste de deterioração controlada foi a temperatura de 41oC e o teor de água de 25%; foram observados apenas algumas correlações significativas, mas não consistentes entre o teste de deterioração controlada e os demais testes de vigor.
This research was carried out at the Seed Analysis Laboratory, Agronomy Department, Agriculture College, UNESP - University, Campus of Jaboticabal, São Paulo State, Brazil. The objective of this research was to evaluate the corn seed physiological quality through the germination and vigor tests: cold test (CT), accelerated ageing (AA), field emergence (FE), speed of emergence index (SEI), and also to verify if the controlled deterioration test (CD) could be efficient in separating seed lots in different vigor levels. Five seed lots with diverse vigor levels were obtained from the Syngenta Seed Company, Matão, São Paulo State, Brazil. The germination and vigor of the corn seeds were evaluated before storage and three and six months after storage. The moisture content was characterized unitially and after the accelerated and controlled deterioration test. The esperimental design used was a complete randomized with a factorial arrangement of treatments with four replications. For the mean comparison was used the Tukey test at 5% level of probability, and also were computed the correlation coefficient between the vigor tests in relation to the controlled deterioration test. According to the obtained results was concluded that : in general the controlled deterioration test was not efficient in separating different levels of vigor of corn seeds; considering the effect of temperature and the seed moisture content in a general way the best results for the controlled deterioration test were the temperature of 41oC and the seed moisture content of 25%; were observed only some significative but not consistent correlation between the controlled deterioration test and the other vigor tests.
Somm, Patrick. "Die Erbschaftsklage des Schweizerischen Zivilgesetzbuches (Art. 598 - 600 ZGB) /." Bern ;Berlin [u.a.] : Lang, 1995. http://www.gbv.de/dms/spk/sbb/recht/toc/271844760.pdf.
Full textBalan, Nicolae. "Analysis of the Epstein-Barr virus transcription factor, Zta." Thesis, University of Sussex, 2014. http://sro.sussex.ac.uk/id/eprint/48903/.
Full textSimoni, Fabiana De. "Deterioração controlada em sementes de milho (Zea mays L.) /." Jaboticabal : [s.n.], 2003. http://hdl.handle.net/11449/96811.
Full textBanca: Francisco Humberto Dubbern de Souza
Banca: Silvio Moure Cícero
Resumo: Esta pesquisa foi realizada no Laboratório de Análise de Sementes do Departamento de Produção Vegetal da Faculdade de Ciências Agrárias e Veterinárias/UNESP, Câmpus de Jaboticabal, com o objetivo de avaliar a qualidade fisiológica das sementes de milho através dos testes de germinação e vigor: envelhecimento acelerado (EA), condutividade elétrica (CE), teste de frio (TF), emergência em campo (EC), índice de velocidade de emergência (IVE) e também verificar se o teste de deterioração controlada (DC) é eficaz em diferenciar lotes de sementes quanto aos seus respectivos níveis de vigor. Foram utilizados cinco lotes de sementes de milho, obtidos da Syngenta Seeds - Matão-SP. A germinação e o vigor dos lotes de sementes de milho foram avaliados antes do armazenamento, e a três e seis meses após o armazenamento. O teor de água das sementes foi determinado na caracterização inicial dos lotes e após o envelhecimento acelerado e a deterioração controlada. Para a análise estatística utilizou-se o delineamento inteiramente casualizado em esquema fatorial, com quatro repetições, e a comparação das médias foi feita usando-se o teste de Tukey ao nível de 5% de probabilidade. Foram determinados também os coeficientes de correlação (r) entre os testes de vigor utilizados e o teste de deterioração controlada. De acordo com os resultados obtidos concluiu-se que: em geral o teste de deterioração controlada não foi eficiente em separar lotes de diferentes níveis de vigor de sementes de milho; considerando se o efeito da temperatura e o teor de água das sementes genericamente o que apresentou melhor resultado para o teste de deterioração controlada foi a temperatura de 41oC e o teor de água de 25%; foram observados apenas algumas correlações significativas, mas não consistentes entre o teste de deterioração controlada e os demais testes de vigor.
Abstract: This research was carried out at the Seed Analysis Laboratory, Agronomy Department, Agriculture College, UNESP - University, Campus of Jaboticabal, São Paulo State, Brazil. The objective of this research was to evaluate the corn seed physiological quality through the germination and vigor tests: cold test (CT), accelerated ageing (AA), field emergence (FE), speed of emergence index (SEI), and also to verify if the controlled deterioration test (CD) could be efficient in separating seed lots in different vigor levels. Five seed lots with diverse vigor levels were obtained from the Syngenta Seed Company, Matão, São Paulo State, Brazil. The germination and vigor of the corn seeds were evaluated before storage and three and six months after storage. The moisture content was characterized unitially and after the accelerated and controlled deterioration test. The esperimental design used was a complete randomized with a factorial arrangement of treatments with four replications. For the mean comparison was used the Tukey test at 5% level of probability, and also were computed the correlation coefficient between the vigor tests in relation to the controlled deterioration test. According to the obtained results was concluded that : in general the controlled deterioration test was not efficient in separating different levels of vigor of corn seeds; considering the effect of temperature and the seed moisture content in a general way the best results for the controlled deterioration test were the temperature of 41oC and the seed moisture content of 25%; were observed only some significative but not consistent correlation between the controlled deterioration test and the other vigor tests.
Mestre
King, Steve Russell. "Double-crop corn (zea mays) weed control in Virginia." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/32469.
Full textMaster of Science
Miller, Nathaniel Douglas. "Management of burcucumber (Sicyos angulatus) in corn (Zea mays)." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1322616069.
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