Sample size determination of avocado shoot xylem characters by resampling

Autores

  • Elizabeth Meza‑Castillo Universidad Autónoma Chapingo
  • Alejandro Facundo Barrientos-Priego Universidad Autónoma Chapingo
  • Juan Enrique Rodríguez‑Pérez Universidad Autónoma Chapingo
  • María Isabel Reyes‑Santamaría Universidad Autónoma del Estado de Hidalgo

DOI:

https://doi.org/10.1590/S1678-3921.pab2010.v45.8498

Palavras-chave:

Persea americana, variance analysis, bootstrap, xylem vessels

Resumo

The objective of this work was to determine the suitable sample size, to detect statistical differences in the analysis of variance of xylem characters, in annual shoots of avocado trees. For this, xylem characters of three trees with contrasting height were registered for frequency, area, perimeter and diameter of xylem vessels. Starting from 50 observations from each tree, a total of 5.000 non parametric bootstraps were done for each of the replicates from 2 to 50 microscopic fields. Starting from a sample size of 15 replicates, the deviations in the five statistical estimates are minimal, so it is proposed as the minimum for sampling the mentioned variables.

Biografia do Autor

Alejandro Facundo Barrientos-Priego, Universidad Autónoma Chapingo

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Publicado

2011-03-23

Como Citar

Meza‑Castillo, E., Barrientos-Priego, A. F., Rodríguez‑Pérez, J. E., & Reyes‑Santamaría, M. I. (2011). Sample size determination of avocado shoot xylem characters by resampling. Pesquisa Agropecuária Brasileira, 45(12), 1531–1535. https://doi.org/10.1590/S1678-3921.pab2010.v45.8498

Edição

v.45, n.12, dez. 2010

Seção

NOTAS CIENTÍFICAS