Updating the ranking of the coefficients of variation from maize experiments - doi: 10.4025/actasciagron.v34i1.13115

Autores

  • Roberto Fritsche-Neto Universidade Federal de Viçosa Autor
  • Rafael Augusto Vieira Universidade Estadual de Maringá Autor
  • Carlos Alberto Scapim Universidade Estadual de Maringá Autor
  • Glauco Vieira Miranda Universidade Federal de Viçosa Autor
  • Luciano Moreira Rezende Universidade Federal de Viçosa Autor

DOI:

https://doi.org/10.4025/actasciagron.v34i1.13115

Palavras-chave:

experimental precision, experimental design

Resumo

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.

 

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Publicado

2011-07-06

Edição

Seção

Produção Vegetal

Como Citar

Updating the ranking of the coefficients of variation from maize experiments - doi: 10.4025/actasciagron.v34i1.13115. (2011). Acta Scientiarum. Agronomy, 34(1), 99-101. https://doi.org/10.4025/actasciagron.v34i1.13115

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