Effect of the seed maturation stage and pre-germination treatments on emergence of <i>Erythrina crista-galli</i> L.

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DOI:

https://doi.org/10.21826/2446-82312020v75e2020007

Palavras-chave:

cockspur coral tree, Fabaceae, physical dormancy.

Resumo

The main goals of this study were to verify the existence of integumentary seed dormancy in Erythrina crista-galli seeds from mature pods and evaluate the seedling emergence from newly collected seeds in two stages of physiological maturation. Methods of overcoming dormancy were tested by comparing seedling emergence rate, mean emergence time and emergence index, with treatments: TC – control; T1– sanded and soaked in water for 48 h; T2 – sanded and soaked in water for 24 h; T3 – soaked in water without heating at the initial temperature of 60 °C, until reaching room temperature; T4 – only sanded; T5 – immature seeds. The results indicate that: i) newly collected seeds from mature pods do not require treatment to overcome dormancy; ii) immature seeds have germination similar to newly collected mature seeds.

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Biografia do Autor

Thales Castilhos de Freitas, Universidade Federal de Pelotas

Mestrando no Programa de Pós-Graduação em Ciências Ambientais (PPGCamb-UFPel), atuando na área de ecologia de espécies exóticas invasoras.

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Publicado

2020-04-08

Como Citar

de Freitas, T. C., Gomes, G. C., Guarino, E. de S. G., Molina, A. R., Medeiros, F. S., Souza, L. C. da S., Miura, A. K., de Sousa, L. P., & Cardoso, J. H. (2020). Effect of the seed maturation stage and pre-germination treatments on emergence of &lt;i&gt;Erythrina crista-galli&lt;/i&gt; L. Iheringia, Série Botânica., 75. https://doi.org/10.21826/2446-82312020v75e2020007

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