Dormancy break in Pithecellobium dulce (Roxb.) Benth. seeds

Authors

  • Francisco Elder Carlos Bezerra Pereira Universidade Federal do Ceará
  • Isaías Porfírio Guimarães Universidade Federal Rural do Semi-Árido
  • Salvador Barros Torres Universidade Federal Rural do Semi-Árido
  • Clarisse Pereira Benedito Universidade Federal Rural do Semi-Árido

DOI:

https://doi.org/10.5433/1679-0359.2015v36n1p165

Keywords:

Tree species, Integument, Germination.

Abstract

This research aimed to evaluate different methods for breaking dormancy in seeds of Pithecellobium dulce (Roxb.) Benth., arboreal species of multiple use in the semiarid region of Northeast Brazil. The treatments were: control - intact seeds (T1); immersion in water until it reaches 80 °C (T2), and 100 °C (T3), concentrated sulfuric acid for five minutes (T4), 10 minutes (T5 ), and 15 minutes (T6), mechanical scarification with sandpaper number 80 (T7), mechanical scarification with sandpaper number 80 + immersion in water for six hours (T8), and for 12 hours (T9), soaking in water for 24 hours (T10), and for 48 hours (T11). The characteristics evaluated were such: emergency, mean emergency time, shoot length, root length, number of leaves, leaf area and total dry matter. The best method for breaking dormancy of seeds of Pithecellobium dulce (Roxb.) Benth. is mechanical scarification with sandpaper number 80.

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Author Biographies

Francisco Elder Carlos Bezerra Pereira, Universidade Federal do Ceará

Mestrando em Fitotecnia, Departamento de Fitotecnia, Centro de Ciências Agrárias da UFC, Campus Pici, Fortaleza, CE

Isaías Porfírio Guimarães, Universidade Federal Rural do Semi-Árido

Eng° Agr°, Dr., em Fitotecnia, Universidade Federal Rural do Semi-Árido, UFERSA, Campus Mossoró, RN.

Salvador Barros Torres, Universidade Federal Rural do Semi-Árido

Eng° Agr°, Dr., em Tecnologia de Sementes, pesquisador da EMPARN/UFERSA, Campus Mossoró, RN.

Clarisse Pereira Benedito, Universidade Federal Rural do Semi-Árido

Enga Agra, Dr., Profª Adjunta do Deptº de Ciências Vegetais, UFERSA, Campus Mossoró, RN.

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Published

2015-02-26

How to Cite

Pereira, F. E. C. B., Guimarães, I. P., Torres, S. B., & Benedito, C. P. (2015). Dormancy break in Pithecellobium dulce (Roxb.) Benth. seeds. Semina: Ciências Agrárias, 36(1), 165–170. https://doi.org/10.5433/1679-0359.2015v36n1p165

Issue

Vol. 36 No. 1 (2015)

Section

Communication

License

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