Comparação de métodos para estimar o tamanho ótimo de parcela em bananeira

• Ano de defesa: 2010
• Autor(a) principal: Silva, Willerson Custódio da
• Orientador(a): Cecon, Paulo Roberto
• Banca de defesa: Martins Filho, Sebastião , Puiatti, Mário
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Mestrado em Estatística Aplicada e Biometria
• Departamento: Estatística Aplicada e Biometria
• País: BR
• Palavras-chave em Português: Modelos lineares; Estatística; Curvatura; Bananeira
• Palavras-chave em Inglês: Linear models; Statistics; Curvature; Banana
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS
• Link de acesso: http://locus.ufv.br/handle/123456789/4031

The objective of this study was to evaluate the methods of maximum curvature, modified maximum curvature and linear model Response Plateau, in determining the optimum plot size, since the traditional methods of maximum curvature and Modified maximum curvature respectively underestimate and overestimate the size of the basic unit. For this reason a comparison between these methods and the method of Linear Model Response Plateau and the data are genotypes was proposed in this paper. We evaluated the vegetative characteristics, plant height, pseudostem circumference, number of green leaves at flowering, number of offspring produced at flowering and the number of green leaves at harvest. In the evaluation, each plant was treated as a basic unit (ub) with an area of 6 m², thus making up 360 units, which were combined adjacently to form 23 pre-set plot sizes, in rectangular shaped molds. The results showed that the plot sizes vary with the method used and the variable evaluated. In the method of maximum curvature the basic unit size ranged from 17.5 for the number of offspring at flowering (NFF) to 20.5 for the number of green leaves after harvest (NFVC), while the coefficient of variation ranged from 3.2 for plant height (AP) to 5.3 for the number of green leaves after harvest (NFVC). For the method of modified maximum curvature, the size of the basic unit ranged from 0.74 for plant height (AP) to 6.88 for the number of offspring at flowering (NFF), while the coefficient of variation ranged from 5.2 for plant height (AP) to 13.84 for the number of offspring at flowering (NFF). In the linear model response plateau the size of the basic unit ranged from 10.50 for the number of green leaves (NFV) to 13.22 for the number of offspring at flowering (NFF), while the coefficient of determination ranged from 71.77% for the number of offspring at flowering (NFF) to 80.33% for the number of green leaves (NFV). Thus, it is recommended to simultaneously use more than one method to determine the optimum plot size so that the size adopted attends to the needs, as far as possible, of the various factors considered in each method.