Alternative methods to sulfuric acid to overcome dormancy of Enterolobium contortisiliquum (tamboril) seeds
DOI:
https://doi.org/10.33448/rsd-v9i8.6126Keywords:
Forest species; Germination; Production of seedlings.Abstract
In order to provide subsidies for making seedlings of forest species, it is essential to have knowledge of the germinative process of seeds that have the impermeable coat. In view of this, the objective was to evaluate methods of overcoming dormancy alternative to sulfuric acid for seeds of Enterolobium contortisiliquum (tamboril). A completely randomized design with eight treatments and four replications was used. Dormancy overcoming treatments were used: control, chemical scarification using sulfuric acid for 20 minutes, chemical scarification with Thinner for 3; 4; 5; 6 and 7 hours and mechanical scarification with sandpaper number 80 on the opposite side to the micropyle. The characteristics evaluated were: emergence, speed index and mean time of emergence, aerial part, root, dry matter mass of the aerial part, of the root system. The use of Thinner was efficient to promote the dormancy of E. contortisiliquum seeds, however they present low germination when compared to sulfuric acid treatments or scarification with iron sandpaper, being necessary to submit the seeds for a period superior to 7 hours for promote greater germination.
References
Araújo, A. V., Silva, M. A. D., & Ferraz, A. P. F. (2017). Superação de dormência de sementes de Libidibia ferrea (Mart. ex Tul.) L. P. Queiroz var. ferrea. Magistra, 29(3-4), 298-304.
Dayamba, S. D., Savadogo, P., Diawara, S., & Sawadogo, L. (2016). Perspectives in restoration: storage and pretreatments of seeds for better germination of Sudanian savanna-woodland species. Journal of Forestry Research, 27(4), 773-778.
Franco, A. A., Dias L. E., Faria, S. M., Campello, E. F. C., & Silva, E. M. R. (1995). Uso de leguminosas florestais noduladas e micorrizadas como agentes de recuperação e manutenção da vida do solo: um modelo tecnológico. Oecologia Australis, 1(1), 459467.
Freire, M. J., Ataíde, D. H. S., & Rouws, J. R. C. (2016). Superação de Dormência de Sementes de Albizia pedicellaris (DC.) L. Rico. Floresta e Ambiente, 23(2), 251-257.
Labouriau, L. G. (1983). A germinação das sementes. Washington: Secretaria Geral da Organização dos Estados Americanos, 174p.
Lorenzi, H. (2008). Árvores brasileiras: Manual de identificação e Cultivo de plantas arbóreas nativas do Brasil. 1, 5 ed. São Paulo: Plantarum,
Maguire, J. D. (1962). Speed of germination aid in selection and evaluation for seedling emergence and vigor. Crop Science, 2(2), 176-77.
Marcos Filho, J. (2015). Fisiologia de sementes de plantas cultivadas. 2.ed. Piracicaba: FEALQ, 660p.
Melo, L. D. F. A., Melo Junior, J. L. A., Ferreira, V. M., Araujo Neto, J. C., & Neves, M. I. R. S. (2018). Biometric characterization and seed germination of giant mimosa (Mimosa bimucronata (DC) O. Kuntze). Australian Journal of Crop Science, 12, 108-115,
Moreira, W. K. O., Alves, J. D. N., Leão, F. A. N., Oliveira, S. S., & Okumura, R. S. (2015). Efeito de substratos no crescimento de mudas de guapuruvú Schizolobium parahyba (Vell.) S. F. BLAKE). Enciclopédia Biosfera, 11(22), 1067,
Nakagawa, J. (1999). Testes de vigor baseados no desempenho das plântulas. In: Krzyzanowski, F. C., Vieira, R. D., França Neto, J. B. (Eds.) Vigor de sementes: conceitos e testes. Londrina: ABRATES, 2.1-2.24.
Silva, A. C. F., Silveira, L. P., Nunes, L. G., & Souto, J. S. (2012). Superação de dormência de Enterolobium contortisiliquum Mor. (Vell.) Morong. Scientia Plena, 8(4), 1-6.
Souza, V. N., Pinto, M. A. D. S. C., Araújo, A. V., & Brito, A. S. (2014). Tratamentos pré-germinativos na superação de dormência de sementes de Enterolobium contortisiliquum (Vell.) Morong. Enciclopédia Biosfera, 10(18), 2887-2893.
Souza, T. V., Torres, I. C., Steiner, N., & Paulilo, M. T. S. (2015). Seed dormancy in tree species of the Tropical Brazilian Atlantic Forest and its relationships with seed traits and environmental conditions. Brazilian Journal of Botany, 38(2), 243-264.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2020 Michelle Ferreira Silva, Joyce Naiara da Silva, Rafael Mateus Alves, Elania Freire da Silva, Monalisa Alves Diniz da Silva
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
1) Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2) Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3) Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.