Updating the ranking of the coefficients of variation from maize experiments
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| Format: | Artículo científico |
| Sprache: | en |
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Universidade Estadual de Maringá
2012
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| _version_ | 1876469809458184192 |
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| author | Roberto Fritsche-Neto |
| author_facet | Roberto Fritsche-Neto |
| contents | Updating the ranking of the coefficients of variation from maize experiments Roberto Fritsche-Neto Rafael Augusto Vieira Carlos Alberto Scapim Glauco Vieira Miranda Luciano Moreira Rezende Agrociencias experimental design experimental precision The objective of this study was to update the ranking of the coefficients of variation (CVs) from maize experiments and evaluate the accuracy of the data from the latest Brazilian publications. We rank-ordered the CVs for grain yield, plant and ear heights, number of ears per plant, and weight of commercial ears, except for the weight of 100 grains. The data were obtained from 143 scientific papers published from 2005 to 2010. The classification was based on the average (m) and standard deviation (SD) and the CVs were ranked as low, intermediate, high and very high. All of the random variables had the CVs normally distributed. For most of the traits, we observed a large difference between the ranks from Scapim and Pimentel Gomes. In summary, the coefficients of variation have to be classified for each variable, significant improvement occurred in the accuracy of the national maize experiments in the last 15 years, and they still require periodic updating. 2012 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303026475010 10.4025/actasciagron.v34i1.13115 en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Num.1 Vol.34 |
| format | Artículo científico |
| id | redalyc_303026475010 |
| institution | Redalyc |
| language | en |
| publishDate | 2012 |
| publisher | Universidade Estadual de Maringá |
| spellingShingle | Updating the ranking of the coefficients of variation from maize experiments Roberto Fritsche-Neto Agrociencias experimental design experimental precision Updating the ranking of the coefficients of variation from maize experiments Roberto Fritsche-Neto Rafael Augusto Vieira Carlos Alberto Scapim Glauco Vieira Miranda Luciano Moreira Rezende Agrociencias experimental design experimental precision The objective of this study was to update the ranking of the coefficients of variation (CVs) from maize experiments and evaluate the accuracy of the data from the latest Brazilian publications. We rank-ordered the CVs for grain yield, plant and ear heights, number of ears per plant, and weight of commercial ears, except for the weight of 100 grains. The data were obtained from 143 scientific papers published from 2005 to 2010. The classification was based on the average (m) and standard deviation (SD) and the CVs were ranked as low, intermediate, high and very high. All of the random variables had the CVs normally distributed. For most of the traits, we observed a large difference between the ranks from Scapim and Pimentel Gomes. In summary, the coefficients of variation have to be classified for each variable, significant improvement occurred in the accuracy of the national maize experiments in the last 15 years, and they still require periodic updating. 2012 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303026475010 10.4025/actasciagron.v34i1.13115 en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Num.1 Vol.34 |
| title | Updating the ranking of the coefficients of variation from maize experiments |
| topic | Agrociencias experimental design experimental precision |
| url | https://www.redalyc.org/articulo.oa?id=303026475010 |