Rescue and vegetative propagation of Eremanthus erythropappus (DC.) MacLeish in natural stand
Abstract The native stands of ‘candeia’ (Eremanthus erythropappus) have been explored through management plans due to the economic potential of essential oil. The rescue of adult trees, as well as the application of silvicultural techniques that favor the restoration of the stand, can contribute to...
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| Format: | Article |
| Language: | English |
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Instituto Internacional de Ecologia
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| Series: | Brazilian Journal of Biology |
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| Online Access: | http://www.scielo.br/pdf/bjb/v81n3/1519-6984-bjb-1519-6984225119.pdf |
| _version_ | 1819180504559124480 |
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| author | A. L. C. Fonseca T. A. Magalhães L. A. Melo L. S. Oliveira G. E. Brondani |
| author_facet | A. L. C. Fonseca T. A. Magalhães L. A. Melo L. S. Oliveira G. E. Brondani |
| author_sort | A. L. C. Fonseca |
| collection | DOAJ |
| description | Abstract The native stands of ‘candeia’ (Eremanthus erythropappus) have been explored through management plans due to the economic potential of essential oil. The rescue of adult trees, as well as the application of silvicultural techniques that favor the restoration of the stand, can contribute to the genetic conservation of this species. This study’s objective was to assess the efficiency of propagation techniques for the rescue of 26 matrices of ‘candeia’ in a natural managed stand and discussion about the rhizogenesis. In August 2017, trees were induced to regrowth by coppice, followed by exposure and scarification of roots. The emergence of shoots and morphology were evaluated according to the origin (i.e., stump or root). After that period, 19 matrices had their sprouts collected for the preparation of apical cuttings. Indole-3-butyric acid (IBA) was applied at the base of the cuttings. Cutting survival at greenhouse exit (GE), rooting at shade house exit (SHE), morphology and root anatomy were evaluated. In 189 days, the scarification of roots promoted 76.92% of budding. The percentage of sprouted matrices, number of shoots per matrice, length, diameter, and shoot length/diameter ratio increased over time. Only 12.2% of the cuttings survived in GE, and of these, 7.9% rooted in SHE. The cutting resulted in the formation of a clonal mini-garden of ‘candeia’, with seven of the 19 matrices submitted to propagation. The anatomical analyses showed that bud formation occurs from cell redifferentiation in the phloem parenchyma, and presence of crystals on the walls of the vessel elements of the secondary xylem. The shoots induction from scarification of roots could be used as a silvicultural practice for the reestablishment of the native fragments handle. |
| first_indexed | 2024-12-22T22:15:24Z |
| format | Article |
| id | doaj.art-55ec7b8d33f141139176073f16e91114 |
| institution | Directory Open Access Journal |
| issn | 1678-4375 |
| language | English |
| last_indexed | 2024-12-22T22:15:24Z |
| publisher | Instituto Internacional de Ecologia |
| record_format | Article |
| series | Brazilian Journal of Biology |
| spelling | doaj.art-55ec7b8d33f141139176073f16e911142022-12-21T18:10:48ZengInstituto Internacional de EcologiaBrazilian Journal of Biology1678-437510.1590/1519-6984.225119Rescue and vegetative propagation of Eremanthus erythropappus (DC.) MacLeish in natural standA. L. C. FonsecaT. A. MagalhãesL. A. MeloL. S. OliveiraG. E. BrondaniAbstract The native stands of ‘candeia’ (Eremanthus erythropappus) have been explored through management plans due to the economic potential of essential oil. The rescue of adult trees, as well as the application of silvicultural techniques that favor the restoration of the stand, can contribute to the genetic conservation of this species. This study’s objective was to assess the efficiency of propagation techniques for the rescue of 26 matrices of ‘candeia’ in a natural managed stand and discussion about the rhizogenesis. In August 2017, trees were induced to regrowth by coppice, followed by exposure and scarification of roots. The emergence of shoots and morphology were evaluated according to the origin (i.e., stump or root). After that period, 19 matrices had their sprouts collected for the preparation of apical cuttings. Indole-3-butyric acid (IBA) was applied at the base of the cuttings. Cutting survival at greenhouse exit (GE), rooting at shade house exit (SHE), morphology and root anatomy were evaluated. In 189 days, the scarification of roots promoted 76.92% of budding. The percentage of sprouted matrices, number of shoots per matrice, length, diameter, and shoot length/diameter ratio increased over time. Only 12.2% of the cuttings survived in GE, and of these, 7.9% rooted in SHE. The cutting resulted in the formation of a clonal mini-garden of ‘candeia’, with seven of the 19 matrices submitted to propagation. The anatomical analyses showed that bud formation occurs from cell redifferentiation in the phloem parenchyma, and presence of crystals on the walls of the vessel elements of the secondary xylem. The shoots induction from scarification of roots could be used as a silvicultural practice for the reestablishment of the native fragments handle.http://www.scielo.br/pdf/bjb/v81n3/1519-6984-bjb-1519-6984225119.pdf‘candeia’cloningcutting techniqueadventitious rooting |
| spellingShingle | A. L. C. Fonseca T. A. Magalhães L. A. Melo L. S. Oliveira G. E. Brondani Rescue and vegetative propagation of Eremanthus erythropappus (DC.) MacLeish in natural stand Brazilian Journal of Biology ‘candeia’ cloning cutting technique adventitious rooting |
| title | Rescue and vegetative propagation of Eremanthus erythropappus (DC.) MacLeish in natural stand |
| title_full | Rescue and vegetative propagation of Eremanthus erythropappus (DC.) MacLeish in natural stand |
| title_fullStr | Rescue and vegetative propagation of Eremanthus erythropappus (DC.) MacLeish in natural stand |
| title_full_unstemmed | Rescue and vegetative propagation of Eremanthus erythropappus (DC.) MacLeish in natural stand |
| title_short | Rescue and vegetative propagation of Eremanthus erythropappus (DC.) MacLeish in natural stand |
| title_sort | rescue and vegetative propagation of eremanthus erythropappus dc macleish in natural stand |
| topic | ‘candeia’ cloning cutting technique adventitious rooting |
| url | http://www.scielo.br/pdf/bjb/v81n3/1519-6984-bjb-1519-6984225119.pdf |
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