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Search Results: 1 - 10 of 175396 matches for " Camilo de Lelis;Pedrosa "
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CULTIVAR RELEASE - BRS 335: A midseason high-yielding upland cotton cultivar for Northeast Brazilian savanna
Camilo de Lelis Morello,Murilo Barros Pedrosa,Nelson Dias Suassuna,Luiz Gonzaga Chitarra
Crop Breeding and Applied Biotechnology , 2012,
Abstract: Cotton cultivar BRS 335 is a midseason high-yield cultivar and has adaptation to the Northeast Brazilian savanna, yield stability, desirable resistance to main cotton diseases and good fiber quality. The cultivar BRS 335 meets growers’ demands for competitive lint yield as well as fulfilling industrial textile requirements.
CULTIVAR RELEASE - BRS 336: A high-quality fiber upland cotton cultivar for Brazilian savanna and semi-arid conditions
Camilo de Lelis Morello,Murilo Barros Pedrosa,Nelson Dias Suassuna,Fernando Mendes Lamas
Crop Breeding and Applied Biotechnology , 2012,
Abstract: Cotton cultivar BRS 336 is a high-quality fiber upland cultivar and has wide adaptation to the Brazilian growing areas, with resistance to bacterial blight. BRS 336 exhibited fiber length higher than 32.0 mm in all field tests. Also, fiber strength exceeded all upland cotton currently grown in Brazil.
Compara??o de métodos para avaliar a adaptabilidade e estabilidade produtiva em algodoeiro
Silva Filho, Jo?o Luís da;Morello, Camilo de Lelis;Farias, Francisco José Correia;Lamas, Fernando Mendes;Pedrosa, Murilo Barros;Ribeiro, José Lopes;
Pesquisa Agropecuária Brasileira , 2008, DOI: 10.1590/S0100-204X2008000300009
Abstract: the objective of this work was to compare different methods used to estimate adaptability and stability of 17 cotton genotypes evaluated in 23 locations of the brazilian savannah. genotype and environment effects and genotype x environment interaction were significant. according to ecovalence and ammi models, cultivar brs cedro showed the best stability. varieties delta penta and brs ipê were among the most unstable genotypes, but not among the most productive. using the methods of eberhart & russel, lin & binns and annicchiarico, genotypes brs 269 - buriti, fmt 701 and cnpa go 2001-999 were the most stable and among the five most productive on average. the evaluation of the specific adaptabilities provided by the ammi analysis is of great importance in the study of the behavior of genotypes. the amount of information generated and the facilities of interpretation favors lin & binns method, which can be complemented by an ammi analysis.
BRS 335: a midseason high-yielding upland cotton cultivar for northeast brazilian savanna
Morello, Camilo de Lelis;Pedrosa, Murilo Barros;Suassuna, Nelson Dias;Chitarra, Luiz Gonzaga;Lamas, Fernando Mendes;Silva Filho, Jo?o Luis;Andrade, Francisco Pereira de;Barroso, Paulo Augusto Vianna;Ribeiro, José Lopes;Godinho, Vicente de Paulo Campos;Lanza, Marcelo Abreu;
Crop Breeding and Applied Biotechnology , 2012, DOI: 10.1590/S1984-70332012000300011
Abstract: cotton cultivar brs 335 is a midseason high-yield cultivar and has adaptation to the northeast brazilian savanna, yield stability, desirable resistance to main cotton diseases and good fiber quality. the cultivar brs 335 meets growers' demands for competitive lint yield as well as fulfilling industrial textile requirements.
BRS 336: a high-quality fiber upland cotton cultivar for Brazilian savanna and semi-arid conditions
Morello, Camilo de Lelis;Pedrosa, Murilo Barros;Suassuna, Nelson Dias;Lamas, Fernando Mendes;Chitarra, Luis Gonzaga;Silva Filho, Jo?o Luis;Andrade, Francisco Pereira;Barroso, Paulo Augusto Vianna;Ribeiro, José Lopes;Godinho, Vicente de Paulo Campos;Lanza, Marcelo Abreu;
Crop Breeding and Applied Biotechnology , 2012, DOI: 10.1590/S1984-70332012000100012
Abstract: cotton cultivar brs 336 is a high-quality fiber upland cultivar and has wide adaptation to the brazilian growing areas, with resistance to bacterial blight. brs 336 exhibited fiber length higher than 32.0 mm in all field tests. also, fiber strength exceeded all upland cotton currently grown in brazil.
HETEROSE E CAPACIDADE COMBINATóRIA ENTRE VARIEDADES DE MILHO EM SOLO áCIDO HETEROSIS AND COMBINING ABILITY AMONG VARIETIES OF MAIZE IN ACID SOIL
Camilo de Lelis Morello,José Branco de Miranda Filho,Josué Maldonado Ferreira
Pesquisa Agropecuária Tropical , 2007, DOI: 10.5216/pat.v32i2.2415
Abstract: Cultivares de milho (Zea mays L.) com tolerancia à acidez e resistência a doen as têm viabilizado o cultivo em solos sob vegeta o de cerrado. A identifica o de germoplasma com potencial para o melhoramento, com essas características, foi o objetivo deste estudo. Dez variedades de milho, resistentes a Puccinia polysora, Phaeosphaeria maydis, Physopella zeae, Exserohilum turcicum e complexo enfezamento, foram avaliadas em cruzamentos dialélicos. As variedades e seus híbridos foram avaliados em solo ácido e com baixa fertilidade. Os caracteres analisados foram: peso de espigas (PE), altura da planta (AP) e altura da espiga (AE). As variedades PMI 8701, CMS 57NF, PMI 9401, CMS 58ND e AMARILLO DENTADO DMR, per se, produziram acima de 3,5 t/ha, o que equivale a mais de 70% em rela o à testemunha. A heterose foi significativa para PE, AP e AE, e, entre seus componentes, também o foram a heterose específica para AE e a heterose média para PE. Os efeitos de capacidade geral de combina o (gi) foram significativos para todos os caracteres, e suas maiores estimativas para PE (t/ha) foram as de PMI 8701 (0,150), BR 105 (0,120) e CMS 59 (0,106). O híbrido interpopulacional CMS 57NF x PMI 8701, com produ o média de 5,11 t/ha e 23,7% de heterose, pode ser indicado como um grupo heterótico potencial. As variedades PMI 8701, CMS 57NF, PMI 9401 e CMS 58ND foram consideradas promissoras para programas de melhoramento intrapopulacional nas condi es de solo ácido. PLAVRAS-CHAVE: Heterose; estresse de acidez; capacidade de combina o; germoplasma. Maize (Zea mays L.) cultivars tolerant to acidity and resistant to diseases have made the crop feasible in ";cerrado"; (savanna) soil. The identification of potentially useful germplasm with the above mentioned characteristics for breeding purposes was the objective of this study. Ten maize varieties (populations), previously selected for resistance to Puccinia polysora, Phaeosphaeria maydis, Physopella zeae, Exserohilum turcicum and corn stunt complex, were evaluated under the diallel crossing scheme. Varieties and crosses were evaluated in acid and low fertility soil. Analyzed traits were: ear yield (EY), plant height (PH), and ear height (EH). Varieties PMI 8701, CMS 57NF, PMI 9401 CMS 58ND and AMARILLO DENTADO DMR showed the highest yields (above 3.5 t/ ha) per se representing more than 70% in relation to check yield. Heterosis showed significance for all traits, but among the components of heterosis only average heterosis was significant for EY and specific heterosis for EH. General combining ability effects (gi) were si
1-Methylcyclopropene and Aminoethoxyvinylglycine effects on yield components of field-grown cotton Efeitos de 1-Methylcyclopropeno e Aminoethoxyvinylglycina sobre componentes de rendimento de algodoeiros crescidos sob condi es de campo
Giovani Greigh de Brito,Alexandre Cunha de Barcellos Ferreira,Ana Luiza Dias Coelho Borin,Camilo de Lelis Morello
Ciência e Agrotecnologia , 2013,
Abstract: Biotic and abiotic stresses can alter the hormone balance and trigger the activation of pathways involved in the cotton stress responses, resulting in the abscission of squares, flowers and young bolls and consequent reductions in the seed cotton yield and fiber yield. As part of the mechanism that primarily regulates the protective response of plants against stresses, ethylene is considered a key hormone involved in this response, and increased ethylene synthesis has been observed when plants are subjected to stress. Thus, the development of strategies aimed to mitigate their negative effects can reduce the shed rate of reproductive structures and positively impact cotton productivity. For this purpose, 1-methylcyclopropene (1-MCP), a compound that inhibits the action of ethylene, and aminoethoxyvinylglycine (AVG), an ethylene synthesis inhibitor, were sprayed on cotton plants to investigate their effects on the seed cotton yield (SCY), fiber yield (FY), fiber percentage (% Fiber) and final stand of plants (STAND) during two cotton growth seasons (2010 and 2011). To this end, experiments were performed in a randomized complete block design with five replicates. Our results demonstrate that the inhibitors of ethylene synthesis and action increased the seed cotton and fiber yield during both growing seasons. The results obtained after AVG spraying in the initial reproductive phase (first square emission) presented the highest values for the cotton yield components and are the first record of the success of this method in Brazil. A ocorrência de estresses bióticos e abióticos pode alterar o balan o hormonal e desencadear a ativa o de vias envolvidas nas respostas do algodoeiro a estresses, resultando na abscis o de bot es, flores e ma s em desenvolvimento e em menor rendimento de algod o em caro o e de fibras. Como parte desses mecanismos que primariamente regulam as respostas protetivas da planta contra estresses, o etileno é considerado um horm nio chave, envolvido nessas respostas e aumentos em seu nível de síntese têm sido verificados em plantas submetidas a quaisquer tipos de estresse. Assim, o desenvolvimento de estratégias objetivando mitigar os seus efeitos negativos poderia reduzir a taxa de queda de estruturas reprodutivas e impactar positivamente na produtividade de fibras. Com esse propósito, 1-methylcyclopropeno (1-MCP), um composto inibidor da a o do etileno e aminoethoxyvinylglycina (AVG), um inibidor da sua síntese foram aplicados sobre o algodoeiro para investigar seus efeitos sobre o rendimento de algod o em caro o, de fibras, a perce
Distancia genética entre linhagens avan?adas de germoplasma de algod?o com uso de marcadores de RAPD e microssatélites
Menezes, Ivandilson Pessoa Pinto de;Hoffmann, Lúcia Vieira;Alves, Milena Ferreira;Morello, Camilo de Lelis;Barroso, Paulo Augusto Vianna;
Pesquisa Agropecuária Brasileira , 2008, DOI: 10.1590/S0100-204X2008001000012
Abstract: the objective of this work was to select similarity coefficients to be used among sets of cotton genotypes with low genetic diversity. sixty-five lineages and four cotton cultivars were analyzed by rapd and ssr markers; and the genetic similarity was estimated by seven similarity coefficients: simple matching, rogers & tanimoto, ochiai, hamman, jaccard, dice and russel & rao. the adequacy of the use of each coefficient to the collected data was verified by correlation between the distance matrices, the consensus index between the dendrograms and the tocher's optimization method. the coefficient of russel & rao was the most divergent, and its use is not recommended. among the parameters used to estimate the quality of information provided by each coefficient, differences were observed only by the consensus index, which established two groups: one in which simultaneous absence of bands are taken into account, and other in which it is excluded. considering the presence of only two microsatellite alleles per polymorphic locus and the higher consensus index coefficients, the simple matching, hamman and rogers & tanimoto coefficients should be preferred when analyzing cotton elite genotypes with low genetic similarity.
Inheritance of resistance to Colletotrichum gossypii var. cephalosporioides in cotton
Mansuêmia Alves Couto de Oliveira,Jo?o Batista Duarte,Camilo de Lelis Morello,Nelson Dias Suassuna
Crop Breeding and Applied Biotechnology , 2010,
Abstract: The objective of this study was to analyze the inheritance of the resistance to cotton ramulosis. For thispurpose, two groups of lines with contrasting performance for the evaluated trait were crossed. The disease-susceptibleparents were Delta Opal, CNPA 999 and CNPA 2161, and those with resistance BRS Facual, CNPA 2043 and CNPA 2984,resulting in nine crosses, always of one resistant and one susceptible parent, totalizing 42 treatments. The experiment was setup in a randomized complete block design with three replications. It was verified that the genetic control of ramulosisresistance is predominantly oligogenic, and the number of genes involved depends on the parents that participate in eachcross, due to the possibility of differential loci fixation. Evidence of partial dominance in the sense of increasing diseaseresistance was found, but there were also indications that dominance is not unidirectional.
Applying CSM-CERES-Maize to define a sowing window for irrigated maize crop – The Riacho′s Farm case study
Tales Ant?nio Amaral,Camilo de Lelis Teixeira de Andrade,Maria Emília Borges Alves,Denise Freitas Silva
Ambiente e água : An Interdisciplinary Journal of Applied Science , 2011,
Abstract: Irrigation use constitutes an alternative to improve maize production in Central Minas Gerais State, Brazil. However, even under adequate water supply conditions, other environmental factors may influence maize crop growth and development and may, ultimately, affect grain yield. This study aimed to establish a sowing window for irrigated maize crop, based on simulation results obtained with the decision support model CSM-CERES-Maize. Simulations were made for crop management conditions of Riacho′s Farm, located in Matozinhos, Minas Gerais State, Brazil. It was employed the model′s seasonal tool, along with a data set containing 46 years of weather data records, to simulate maize yield for weekly sowing scenarios, starting on August 1st and ending on July 24th of each year. One defined an irrigated maize sowing window, taking into account the yield break risk that a farmer would be willing to take. The model proved to be an interesting tool to assist in decision making, regarding crop and irrigation management, for an irrigated maize production system. Assuming a 10% yield break in the expected average maximum maize yield, it was defined as sowing window, the period from January 23rd to March 6th, with February 20th as the best sowing date. Other sowing windows may be established according to the risk that the farmer would be willing to take.
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