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

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,...

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Bibliographic Details
Published in:Acta scientiarum. Agronomy 2015-01, Vol.37 (1), p.69-74
Main Authors: Ortiz, Thiago Alberto, Moritz, Aline, Oliveira, Mariana Alves de, Takahashi, Lúcia Sadayo Assari
Format: Article
Language:English
Subjects:
AGRONOMY
carboxim+thiran
costaricensis
Germination
Hydrogen
Hylocereus undatus, H
Pesticides
physiological quality
Studies
viability
vigor
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Summary: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.
ISSN:1679-9275
1807-8621
1807-8621
DOI:10.4025/actasciagron.v37i1.18088