Alternative methods to sulfuric acid to overcome dormancy of Enterolobium contortisiliquum (tamboril) seeds

Authors

DOI:

https://doi.org/10.33448/rsd-v9i8.6126

Keywords:

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.

Published

16/07/2020

How to Cite

SILVA, M. F.; SILVA, J. N. da; ALVES, R. M.; SILVA, E. F. da; SILVA, M. A. D. da. Alternative methods to sulfuric acid to overcome dormancy of Enterolobium contortisiliquum (tamboril) seeds. Research, Society and Development, [S. l.], v. 9, n. 8, p. e541986126, 2020. DOI: 10.33448/rsd-v9i8.6126. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/6126. Acesso em: 23 nov. 2024.

Issue

Section

Agrarian and Biological Sciences