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| 2. |  | RODRIGUES, C. F. de C.; IAPICHINI, J. E. C. B.; FACHINI, C.; VEIGA FILHO, A. de A.; RAMOS, R. C.; LISERRE, A. M. Políticas públicas, pesquisa e desenvolvimento para a ovinocaprinocultura paulista. Noticiário Tortuga, v. 53, p. 14-15, fev./mar., 2008. Edição especial Caprinos e Ovinos.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| Registros recuperados : 8 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
24/08/2018 |
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Data da última atualização: |
25/02/2019 |
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Autoria: |
CARGNELUTTI FILHO, A.; GUADAGNIN, J. P. |
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Afiliação: |
Alberto Cargnelutti Filho, Universidade Federal de Santa Maria - UFSM; José Paulo Guadagnin, Fundação Estadual de Pesquisa Agropecuária. |
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Título: |
Sufficient number of experiments for the adaptability and stability analyses of maize using the Eberhart and Russell method. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 6, p. 673-683, June, 2018. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Número suficiente de experimentos para análises de adaptabilidade e estabilidade de milho pelo método de Eberhart e Russell. |
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Conteúdo: |
The objective of this work was to determine the sufficient number of experiments (environments) for the adaptability and stability analyses of maize cultivars, using the Eberhart and Russell method. Grain yield data from 63 trials of maize cultivars from six groups of experiments were used. In each group, new data files were formed from all experiments (n), for the combinations of 3, 4, ..., n-1 experiments, totaling 10,381 files. Mean and estimates of the adaptability (b) and stability (S2d) parameters were obtained for each cultivar, in each file. A power function was adjusted for the amplitudes of b and S2d (dependent variables) in each cultivar, as a function of the number of experiments (independent variable), totaling 290 equations (145 cultivars × two dependent variables). For each equation, the value was determined on the abscissa axis (Xs, sufficient number of experiments), corresponding to the point of maximum curvature. The highest value among the 290 estimates of Xs, rounded up to the nearest integer, was assumed to be the sufficient number of experiments for the analyses. Seven experiments are sufficient to analyze the adaptability and stability of maize cultivars using the Eberhart and Russell method. |
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Palavras-Chave: |
Genotype × environment interaction; Indicação de cultivares; Indication of cultivars; Interação genótipo × ambiente. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/181889/1/Sufficient-number-of-experiments-for-the-adaptability.pdf
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Marc: |
LEADER 02084naa a2200193 a 4500
001 2094473
005 2019-02-25
008 2018 bl uuuu u00u1 u #d
100 1 $aCARGNELUTTI FILHO, A.
245 $aSufficient number of experiments for the adaptability and stability analyses of maize using the Eberhart and Russell method.$h[electronic resource]
260 $c2018
500 $aTítulo em português: Número suficiente de experimentos para análises de adaptabilidade e estabilidade de milho pelo método de Eberhart e Russell.
520 $aThe objective of this work was to determine the sufficient number of experiments (environments) for the adaptability and stability analyses of maize cultivars, using the Eberhart and Russell method. Grain yield data from 63 trials of maize cultivars from six groups of experiments were used. In each group, new data files were formed from all experiments (n), for the combinations of 3, 4, ..., n-1 experiments, totaling 10,381 files. Mean and estimates of the adaptability (b) and stability (S2d) parameters were obtained for each cultivar, in each file. A power function was adjusted for the amplitudes of b and S2d (dependent variables) in each cultivar, as a function of the number of experiments (independent variable), totaling 290 equations (145 cultivars × two dependent variables). For each equation, the value was determined on the abscissa axis (Xs, sufficient number of experiments), corresponding to the point of maximum curvature. The highest value among the 290 estimates of Xs, rounded up to the nearest integer, was assumed to be the sufficient number of experiments for the analyses. Seven experiments are sufficient to analyze the adaptability and stability of maize cultivars using the Eberhart and Russell method.
653 $aGenotype × environment interaction
653 $aIndicação de cultivares
653 $aIndication of cultivars
653 $aInteração genótipo × ambiente
700 1 $aGUADAGNIN, J. P.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 53, n. 6, p. 673-683, June, 2018.
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Embrapa Unidades Centrais (AI-SEDE) |
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