Coffee outturn can be defined as the ratio between the harvested coffee and its respective processed grains. This character is greatly influenced by genotypic and environmental effects, and in breeding programs your analysis is costly and time-consuming. In this sense, the use of an outturn index to estimate coffee yield on experimental plots is a desirable measure aiming at reducing resources and time in posth...
O objetivo deste trabalho foi avaliar a possibilidade do emprego de índices de seleção em complexos fatoriais, de modo a auxiliar na seleção simultânea de caracteres de Coffea canephora var. Conilon, na predição de ganhos por seleção. Foram analisados e avaliados quatorze características e 40 genótipos de dois experimentos, pertencentes ao programa de melhoramento genético de café 'Conilon' do Incaper, Marilând...
O objetivo deste trabalho foi avaliar a divergência genética entre 32 clones de café conilon (Coffea canephora Pierre ex Frohener) componentes de três variedades clonais melhoradas, com vistas à identificação dos mais dissimilares, para o estabelecimento de programas de cruzamentos dirigidos. A divergência genética foi avaliada por procedimentos multivariados: distância generalizada de Mahalanobis, método de ag...
Differentiation of coffee according to its quality can result in added value. Both the coffee genotype and the environment influence beverage quality. The main species grown in the Amazon region is C. canephora, which includes two distinct botanical varieties: Conilon and Robusta. The aim of this study was to characterize beverage quality in C. canephora and distinguish the Conilon and Robusta botanical varieti...
Conselho Nacional de Desenvolvimento Científico e Tecnológico; Este trabalho teve como propósito a obtenção de um conjunto de informações genéticas, capazes de oferecer subsídios importantes para o adequado planejamento e execução de programas de melhoramento genético do café Conillon (Coffea canephora Pierre). Para isso, as seguintes análises biométricas foram realizadas: estimação de parâmetros genéticos e am...
The use of multivariate techniques for factor analysis is an efficient alternative for coffee breeding programs. This study aimed to evaluate the genetic diversity of 60 genotypes of conilon coffee based on agronomic performance in the northern state of Espírito Santo and to estimate the relative contribution of different agronomic characteristics towards the diversity of the species. The data were collected in...
Determining the correct population of plants and number of orthotropic stems to be kept per area, along with optimal pruning management, is very important for crops of Coffea canephora. The aim of this work was to improve conilon coffee cropping management, evaluating the influence of the programmed pruning cycle with different combinations of spacing and numbers of orthotropic stems per plant on crop yield. Tw...
The cultivation of Coffea canephora var. kouilouensis De Wild (Conilon) is of great importance in Espírito Santo andtheir populations often have significant genetic variability. This study was aimed to evaluate three genotype groups of Conilon coffee,distinguished according to their maturation cycles, to estimate genetic parameters of different characteristics in order to betterunderstand their genetic structur...