<b>Effects of the hydrogen potential and fungicide treatment on Pitaya seed germination

  • Thiago Alberto Ortiz Universidade Estadual de Londrina
  • Aline Moritz Universidade Estadual de Londrina
  • Mariana Alves de Oliveira Universidade Estadual de Londrina
  • Lúcia Sadayo Assari Takahashi Universidade Estadual de Londrina
Keywords: Hylocereus undatus, H, costaricensis, carboxim thiran, vigor, viability, physiological quality

Abstract

The objective of the present study was to evaluate pitaya seed germination under different hydrogen potentials, with or without fungicide treatment. A completely randomized design was employed under a 3 x 13 x 2 factorial scheme, corresponding to three pitaya species (white pitaya, pitaya hybrid I, pitaya hybrid II), thirteen hydrogen potentials (3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, and 9.0) and two fungicide conditions (presence and absence), with four replications. The percentage of germination, germination speed index and mean germination time were evaluated. The data were subjected to ANOVA, and the means were compared using the Scott-Knott test (p < 0.05). The pH influenced the germination speed index in white pitaya. The mean germination time was affected by the pH levels for white pitaya and pitaya hybrid II. The fungicide did not increase the germination percentage in the evaluated species.

 

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Author Biographies

Thiago Alberto Ortiz, Universidade Estadual de Londrina

Engenheiro Agrônomo pela Universidade Estadual de Maringá, campus Umuarama

Mestrando em Agronomia - Fitotecnia pela Universidade Estadul de Londrina

Departamento de Agronomia

Área: Tecnologia e produção de sementes

Aline Moritz, Universidade Estadual de Londrina

Departamento de Agronomia

Área: Tecnologia e produção de sementes

Mariana Alves de Oliveira, Universidade Estadual de Londrina

Departamento de Agronomia

Área: Fitotecnia

Lúcia Sadayo Assari Takahashi, Universidade Estadual de Londrina

Departamento de Agronomia

Área: Tecnologia e produção de sementes

Published
2014-11-25
How to Cite
Ortiz, T. A., Moritz, A., Oliveira, M. A. de, & Takahashi, L. S. A. (2014). <b&gt;Effects of the hydrogen potential and fungicide treatment on Pitaya seed germination. Acta Scientiarum. Agronomy, 37(1), 69-74. https://doi.org/10.4025/actasciagron.v37i1.18088
Section
Crop Production

 

2.0
2019CiteScore
 
 
60th percentile
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2.0
2019CiteScore
 
 
60th percentile
Powered by  Scopus