Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/30382
Title: O coeficiente de variação como critério de avaliação em experimentos de milho e feijão
Other Titles: The coefficient of variation as evaluation criterion for beans and corn experiments
Keywords: Estatística agrícola
Coeficiente de variação
Precisão de experimento
Agricultural Statistics
Coefficient of variation
Experiment accuracy
Issue Date: 2013
Publisher: Embrapa Amazônia Oriental
Citation: GURGEL, F. de L.; FERREIRA, D. F.; SOARES, A. C. S. e. O coeficiente de variação como critério de avaliação em experimentos de milho e feijão. Boletim de Pesquisa e Desenvolvimento, Belém, v. 85, 80 p., 2013.
Abstract: The objective of this work was to verify if the Coefficient of Variation (CV) is the most adequate criterion to discard experiment of cultivars evaluation what is the most appropriated value for the CV, and if there are alternatives to increase efficiency. Monte Carlo simulation was chosen. To know what are the most important variables and the limits for simulation, some experimental data from bean and corn crops were considered initially. The following data were considered: number of cultivars, number of blocks, genetic variance, average yield, and the coefficient of variation. All information was processed using Delphi program. Field tests were simulated considering Randomized Complete Blocks Design. Each simulation corresponded to one experiment and the simulated data followed the approximation methodology of the normal distribution function. The number of experiments with coefficient of variation superior and inferior or equal to 20% also was identified, for each simulated configuration, in the 2,000 experiments. As a conclusion, the Coefficient of Variation was not considered a reliable predictor to evaluate the efficiency of experiments for cultivar recommendation. It must be associated to other parameters to make the recommendation of a cultivar more reliable. The repeatability is the parameter that will make possible to determine the criteria to discard experiments for cultivars recommendations.
URI: https://ainfo.cnptia.embrapa.br/digital/bitstream/item/81507/1/BDP-85.pdf
http://repositorio.ufla.br/jspui/handle/1/30382
Appears in Collections:DEX - Artigos publicados em periódicos

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.