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| Schmit,Rodolfo; Trevisani,Nicole; Melo,Rita Carolina de; Veiga,Alessandra; Beck,Mattheus; Coimbra,Jefferson Luís Meirelles; Guidolin,Altamir Frederico. |
| O objetivo deste trabalho foi evidenciar a contribuição da análise da heterogeneidade das linhas de regressão para a recomendação de novas cultivares, pela metodologia de Eberhart & Russell. Um experimento com dez genótipos de arroz, avaliados em oito ambientes, foi utilizado para ilustração da metodologia. Utilizou-se o delineamento de blocos ao acaso com três repetições. A soma dos quadrados da interação genótipo x ambiente (GxA) foi decomposta para avaliação da heterogeneidade das linhas de regressão e dos desvios acumulados da linearidade. A heterogeneidade das linhas de regressão foi analisada com o uso do teste t sobre os coeficientes de regressão linear dos genótipos. Os dois componentes ortogonais da interação GxA foram significativos. A... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Adaptabilidade e estabilidade fenotípica Eberhart & Russell interação genótipo x ambiente produtividade de grãos. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000600475 |
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| Schmit,Rodolfo; Melo,Rita Carolina de; Pereira,Thayse Cristine Vieira; Beck,Mattheus; Guidolin,Altamir Frederico; Coimbra,Jefferson Luís Meirelles. |
| ABSTRACT: The objective of this study was to apply multivariate techniques, canonical discriminant analysis, and multivariate contrasts, indicating the most favorable inferences in the evaluation of pure lines of beans. The study was conducted at the experimental field of the Institute for Breeding and Molecular Genetics, in Lages, SC, Brazil. The experiment was composed of 24 pure lines of beans from the Santa Catarina test of cultivars. Plant height, numbers of pods and grains per plant, and stem diameter were the variables measured. The complete randomized block design was used with four replications. The data were subjected to multivariate analysis of variance, canonical discriminant analysis, multivariate contrasts and univariate contrasts. The first... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris L; Multivariate analysis of variance; Multivariate contrasts; Canonical discriminant analysis. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000901535 |
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| Ulguim,André da Rosa; Carlos,Filipe Selau; Santos,Rodrigo Areze da Silva; Zanon,Alencar Junior; Werle,Isabel Schlegel; Beck,Mattheus. |
| ABSTRACT: This research aimed to evaluate the phytosociology of weeds in irrigated rice in different soil management systems and crop rotation intensity. Therefore, two field studies were carried out. Study 1 was conducted in an area that has been cultivated since 1994 with three cultivation systems: direct, pre-germinated and conventional ones. Study 2 was carried out in an experimental area in five Integrated Farming Systems, with crop rotation. Phytosociological evaluations were conducted when rice was fully blooming, in the first study, and when grain filling was ending, in the second study. Pre-germinated system of rice cultivation has predominance of aquatic weeds. Conventional system when compared with direct sowing has lower weed densities.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa; Red rice; Sustainable intensification. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001100150 |
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