3122035 documents found, page 14024 of 312204
Correlações fenotípicas e genotípicas, adaptabilidade e estabilidade em genótip...
Romanato, Fernanda NevesCoordenação de Aperfeiçoamento de Pessoal de Nível Superior; The selection and recommendation of superior genotypes are basic activities of a breeding program. The knowledge of phenotypic and genotypic contributes to defining best selection strategies. Obtaining genotypes with high grain yield is the main goal of soybean breeding programs. The genotype x environment interaction (G x E) constitutes one of the ma...
Causa da resistência de Lipaphis pseudobrassicae (DAVIS, 1914) ao parasitoide D...
Ferreira, Samira EvangelistaFundação de Amparo a Pesquisa do Estado de Minas Gerais; The aphid Lipaphis pseudobrassicae (Davis, 1914) (Hemiptera: Aphididade) is an important pest of Brassicaceae plants. In Uberlândia, Minas Gerais, this aphid has low percentages of parasitism because of its resistance to the parasitoid Diaeretiella rapae (McIntosh) and the cause of resistance is unknown. Variations in susceptibility or resistance to natur...
Desempenho de genótipos de soja nos estados de Tocantins, Bahia, Maranhão e Piauí
Mendes, Luiz FerreiraThis study evaluated the agronomic performance of soybean lines of early to medium and medium late to late cycles in the states of Bahia, Tocantins, Maranhão and Piauí, studying their adaptability and phenotypic stability. The genotypes were evaluated for productivity in the municipalities of Porto Nacional (TO), Balsas (MA) Formosa do Rio Preto (BA), Bom Jesus (PI) and Chapadinha (MA), using a randomized block...
Deposição de calda aplicada em folhas de cafeeiro com diferentes volumes e pont...
Silva, João Eduardo Ribeiro daCoffee crop is an important agricultural and economic activity in Brazil. The country is the greatest coffee producer and exporter, and has in the state of Minas Gerais the major national producer. One of the biggest problems faced by coffee farmers is the susceptibility of the plants to several pests and diseases. Among these, the leaf-miner, considered a key pest of the crop, occurs in almost all producing re...
Acúmulo de nutrientes, produtividade e qualidade de batata, cv. Asterix, sob fo...
Oliveira, Roberta Camargos deCoordenação de Aperfeiçoamento de Pessoal de Nível Superior; The high demand and response of potatoes to the addition of nutrients to the soil provides attention to relevant aspects related to fertility (application, quantity, sources). Adequate fertilization allows a balance between soil and plant nutrients, resulting in excellent returns for farmers and better quality produce for consumers. This study evaluat...
Recipientes e fontes orgânicas em substratos na produção de mudas de gravioleira
Andrade, Bruno Bernardes deCoordenação de Aperfeiçoamento de Pessoal de Nível Superior; Soursop (Annona muricata L.), family Annonaceae, is a fruit of great economic value, commercially cultivated in many tropical and subtropical countries. In Brazil, its cultivation is scattered in several states, and Bahia appears as the major producer. Soursop cultivation represents an attractive alternative income source, especially for small farmers...
Efeito residual do agregado siderúrgico e calcário no crescimento do eucalipto
Silva, Juliana Cristina daMetallurgical slags, consisting of calcium and magnesium silicate, is an alternative for the correction of Ca and Mg soil requirements. This study was done at Fazenda Floresta do Lobo - Uberlândia-MG, evaluating the effects of silicate on soil pH and residual contents of Si, Ca and Mg, and on DBH (diameter at breast height), quadratic diameter, basal area, CAG (current annual growth) and AAG (average annual gro...
Mineralização da palhada de cana-de-açúcar: efeito da incorporação, da adição d...
Almeida, Risely Ferraz deFundação de Amparo a Pesquisa do Estado de Minas Gerais; Brazil is expanding sugar cane cultivation with mechanized harvesting, mainly in the Southeast, resulting in the deposition of large amount of straw dry mass on the soil. Such trash cannot be eliminated with prescribed fire, not even as a facilitator of manual sugar cane harvest, according to the decree 11.241, 20004. The relation of straw with soil and t...
Seleção de traçadores e deriva nas aplicações foliares de produtos fitossanitár...
Alves, Guilherme SousaPesticide drift is a serious agricultural problem that is especially significant for perennial crops. Most studies use tracers to quantify pesticide drift. Nevertheless, in Brazil, consensus is lacking on which tracer is the most effective. Thus, given the importance of coffee crops in Brazil, we evaluated several tracers used in application efficiency assessments. We also quantified the drift in coffee crops f...
Adaptabilidade e estabilidade fenotípica de genótipos de soja pelos métodos de ...
Hamawaki, Raphael LemesBrazil is the second largest global producer and the major global exporter of soybeans. The total foreign exchange income from the soybean complex was US$ 26.1 billion in the 2012/2013 growing season. This result comes from the fast expansion of this oilseed crop in different regions of the country. Due to the diversity of climatic and soil conditions in Brazil the genotype x environment interaction component i...