| Registro completo |
| Provedor de dados: |
Sci. Agrar.Paran. / SAP
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| País: |
Brazil
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| Título: |
Dimensional variation of axial tracheids along the stem of Sequoia sempervirens Endl (Lamb.)
Dimensional variation of axial tracheids along the stem of Sequoia sempervirens Endl (Lamb.)
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| Autores: |
Müller, Bruna Verediana
Nisgoski, Silvana
Muniz, Graciela Ines Bolzon de
Cunha, Alexsandro Bayestorff da
Oliveira, Joanna Rebelo de
Andreolla, Veruschka Rocha Medeiros
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| Data: |
2017-12-20
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| Ano: |
2017
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| Palavras-chave: |
Anatomia da madeira
Gimnospermas
Microscopia
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| Resumo: |
The present study aimed to evaluate the dimensional variation of axial tracheids along the stem of Sequoia sempervirens Endl (Lamb.). Three trees with approximately 18 years old were selected, of which six discs were removed from along the height. Of each disk, three samples were taken from the vascular cambium to the medulla. For each sample we proceeded to measure the individual characteristics of tracheids. As a procedure of analyzing the results, we applied the Tukey test at 95% probability. The results indicated that the values for the characteristics of tracheids resemble those reported in the literature for the genus Pinus or species belonging to Gymnosperms, except the cell wall thickness, whose values were high. Regarding the variation of dimensions, only the length of tracheids from the vascular cambium to the medulla, indicated statistically a standard of variation. Evaluated traits, both in the vascular cambium to the medulla sense, as along the height, showed no definitive trend of variation.
The present study aimed to evaluate the dimensional variation of axial tracheids along the stem of Sequoia sempervirens Endl (Lamb.). Three trees with approximately 18 years old were selected, from which six discs were removed from along the height. Of each disk, three samples were taken from the vascular cambium to the medulla. For each sample we proceeded to measure the individual characteristics of tracheids. As a procedure of analyzing the results, we applied the Tukey test at 5% probability of error. The results showed that of the dimensions evaluated for the axial tracheids of S. sempervirens, only the length showed a significant variation pattern, increasing in the direction from the medulla to the vascular cambium and along the height of the trees. Also, it was verified that the cell wall thickness of the axial tracheids of S. sempervirens is superior to that found in the literature for species of gymnosperms group.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Português
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| Identificador: |
http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/16075
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| Editor: |
Scientia Agraria Paranaensis
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| Relação: |
http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/16075/12153
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| Formato: |
application/pdf
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| Fonte: |
Scientia Agraria Paranaensis; Vol. 16, No 4 (2017); 510-515
1983-1471
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| Direitos: |
http://creativecommons.org/licenses/by-nc-sa/4.0
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