3121936 documents found, page 14017 of 312194
Quantificação de Pratylenchus brachyurus em genótipos de soja (Glycine max L) M...
Souza, Renata Aparecida deThis study analyzed the reaction of soybean lines to the nematode Pratylenchus brachyurus. The reaction of 70 genotypes, including commercial cultivars and under development by Pioneer Seeds were evaluated in a field experiment conducted in the city of Tupirama-TO. The major objective was to select tolerant or resistant cultivars to Pratylenchus brachyurus. Resistance, or tolerance, was determined by observing ...
Desempenho de híbrido de girassol em resposta ao vigor das sementes, população ...
Brunes, Rélia RodriguesCoordenação de Aperfeiçoamento de Pessoal de Nível Superior; In the sunflower cultivation seedlings dominated probably because of nonuniformity between seeds from the same portion is a common occurrence. This variation results from a natural gradient of seed maturation in the capitulum, which has demanded a rigorous processing to reduce variation. Although the relationship between nonuniform emergence and produ...
Interferência da dessecação, da época de colheita, do tratamento fungicida e do...
Bernardes, Karlla MoraesThe present worked the interference of desiccation and harvest time on the quality of sunflower seed. The experiment was conducted in a commercial area, for production of hybrid Helio 251 sunflower seeds, for Helianthus of Brazil Company, in the municipal district of Conceição das Alagoas-MG, during the 2006/2007 crop. The experimental design was randomized blocks, with four repetitions. The treatments were dis...
Avaliação da despalha mecânica em linhagem experimental submetida à dessecação
Frigoni, André SellaroTo investigate how desiccation influences hybrid corn (Zea mays L.) during husk removal, two experiments were carried out at Santa Bárbara Farm, in Vicentinópolis, state of Goiás, during 2007/08 growing season, with an experimental line (female parent) provided by Syngenta Seeds Ltd. Experiments were defined by the type of desiccant application: one as corn-ear directed, the other as whole plant application. Bo...
Comportamento de cultivares de soja na presença da ferrugem asiática, em relaçã...
Silva, Junia Vianna Corrêa daCoordenação de Aperfeiçoamento de Pessoal de Nível Superior; Soybean rust is caused by an obligatory parasite (Phakopsora pachyrhizi) which is being spread in Brazil at each new season since 2001 and, despite the efforts to control the disease, losses have occurred every year. It s control demands several tactics and chemical control with fungicides is the main method and still is indispensable. Control strateg...
Bioensaios com fósforo e indicadores químicos, microbianos e bioquímicos do sol...
Vinhal-Freitas, Isabel CristinaCoordenação de Aperfeiçoamento de Pessoal de Nível Superior; The microbial activity in soil has great importance in regulating the processes of transformation of carbon and nutrients, like phosphorus. However, the microbial activity is strongly linked to agricultural practices in land use. In Chapter I, the study aimed to compare three systems of land use in relation to the response of microbial metabolic activ...
Diagnose foliar em cafeeiro de sequeiro e irrigado na região do alto Paranaíba ...
Campos, Rodrigo de ArrudaCerrado soils have low fertility and under-dosing of fertilizers leads to nutritional imbalance on coffee plantations. This study aimed to: comparatively characterize the main deficiencies, nutritional imbalances and excesses in the aerial part of coffee plant; indicate nutrients which respond well to fertilization and their synergistic and antagonistic interactions; define the critical levels and assess the po...
Mudas de cafeeiro (Coffea arábica L.) desenvolvidas sob fontes de material orgâ...
Silva, Cícero José daThis study evaluated the development of coffee seedlings (Coffea arabica L.) under five proportions (0, 15, 30, 45 and 60% v/v) of three sources of organic material (cattle manure, poultry manure and forest humus) added to the commercial substrate Bioplant® coffee. The experimental design was randomized blocks, with four repetitions, in factorial scheme. The experiment was conducted in nursery with shade 50% of...
Micronutrientes e metais pesados no solo e na cana-de-açúcar fertilizada com de...
Vitorino, Leticia BarbarescoSugarcane culture allows the production of alternative energy sources. Due to increasing mineral fertilizer prices, renewed interest for the rational use of agricultural residues na even urban and industrial ones is observed. Inadequate use of organic residues can add heavy metals to soils and plants. Thus, this study evaluated the movement of micronutrients and heavy metals in the soil and in sugarcane in the ...
Ocorrência de fungos em amostras recebidas no laboratório de micologia e proteç...
Barros, Fernanda CarvalhoThe present work reports the occurrence of fungi on crops of economic importance in the region of Uberlândia, Alto Paranaíba and some cities of Goiás, by the analysis of reports generated by Laboratório de Micologia e Proteção de Plantas (LAMIP), Universidade Federal de Uberlândia, on samples of seeds or plant parts, from the year 2001 to 2008. The reports analyzed were classified by crop and, subsequently, not...