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A comparison of regression methods based on dimensional reduction for genomic prediction. Author(s): COSTA, J. A. da; AZEVEDO, C. F.; NASCIMENTO, M.; SILVA, F. F. e; RESENDE, M. D. V. de; NASCIMENTO, A. C. C. multicollinearity and high dimensionality problems, making it impossible to obtain stable estimates through the traditional method of estimation based on ordinary least squares. To overcome such chall... ... Repository: BDPA Publication year: 2021
A non-archimedean dea model to assess group comparisons. Author(s): SOUZA, G. da S. e; GOMES, E. G. We consider the use of the non-Archimedean infinitesimal epsilon in DEA-CCR models. The application of interest is defined by the performance measure of the Brazilian Agricultural Research Corporation... ... Repository: BDPA Publication year: 2016
Assessing the determinants of rural income dispersion in Brazil. Author(s): SOUZA, G. da S. e; GOMES, E. G.; ALVES, E. R. de A. This article has as its objective the analysis of rural income dispersion in Brazil. To this en we fit econometric regression models using the Gini index as the dependent variable, tecnology, and envi... ... Repository: BDPA Publication year: 2015
Lumber volume modeling of Amazon Brazilian species. Author(s): LIMA. R. B. de; FERREIRA, R. L. C.; SILVA, J. A. A. da; GUEDES, M. C.; OLIVEIRA, C. P. de; SILVA, D. A. S. da; SANTOS, R. M.; CARVALHO, E. P. F.; SILVA, R. M. de A. Accurate estimates of lumber volume become an important indicator of production and monetary value for a sawmill. However, such estimates are only obtained directly after logging, and no accurate pred... ... Repository: BDPA Publication year: 2019
Water stress in modern upland rice cultivars: a multivariate study between physiological traits and yield. Author(s): QUILOANGO-CHIMARRO, C. A.; COELHO, R. D.; COSTA, J. de O.; GUNDIM, A. da S.; HEINEMANN, A. B. Water stress negatively affects upland rice production. The objective of this study was to identify physiological traits that could depict yield responses under water stress conditions. Three modern u... ... Repository: BDPA Publication year: 2023
Modelos empíricos para estimar o acúmulo de matéria seca de capim-marandu com variáveis agrometeorológicas. Author(s): CRUZ, P. G.; SANTOS, P. M.; PEZZOPANE, J. R. M.; OLIVEIRA, P. P. A.; ARAUJO, L. C. O objetivo deste estudo foi testar modelos empíricos de regressão linear, para a predição do acúmulo de matéria seca (TAMS) de Urochloa brizantha cv. Marandu, em função de variáveis agrometeorológicas... ... Repository: BDPA Publication year: 2011
Uso de técnicas de mineração de dados para suporte à certificação racial de ovinos. Author(s): VIEIRA, F. D.; OLIVEIRA, S. R. de M. Este artigo apresenta um conjunto de modelos baseados em técnicas de mineração de dados para selecionar os principais marcadores SNP (Single Nucleotide Polymorphism) para as raças de ovinos Crioula, M... ... Repository: BDPA Publication year: 2015
The modeling and simulation of a smoke-free firewood furnace designed for indirect heating adapted to mixing heating configuration. Author(s): SILVA, L. C. da; YUSUF, K. A.; MELO, E. de C.; SOARES, S. F.; SILVA, J. de S. e; DONZELES, S. M. L.; VITOR, D. G. ABSTRACT: The use of wood furnaces for thermal energy applications in drying is common among coffee growers in Brazil. However, incomplete combustion of firewood and excessive use of damaged furnaces... ... Repository: BDPA Publication year: 2024
Soybean yield prediction using remote sensing in Southwestern Piauí State, Brazil. Author(s): ANDRADE, T. G.; ANDRADE JUNIOR, A. S. de; SOUZA, M. O.; LOPES, J. W. B.; VIEIRA, P. F. de M. J. Recent researches have shown promising results for the use of orbital data using the Normalized Difference Vegetation Index (NDVI) to monitor and predict soybean grain yield. The objective of this wor... ... Repository: BDPA Publication year: 2022
Chemical composition and energy yield of elephant-grass biomass as function of five different production ages. Author(s): FREITAS, R. S.; BARBÉ, T. da C.; DAHER, R. F.; VIDAL, A. K. F.; STIDA, W. F.; SILVA, V. B. da; MENEZES, B. R. da S.; PEREIRA, A. V. Abstract Elephant grass has high biomass production, with qualities suitable for conversion into bioenergy, but has long been used exclusively for animal feed and only in recent years has it become an... ... Repository: BDPA Publication year: 2018

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