Pre-germinative treatments to overcome dormancy of Sterculia striata A. St. Hil. & Naldin seeds

Authors

  • Kelina Bernardo Silva Universidade Estadual da Paraíba
  • Marlene Feliciano Mata Universidade Estadual da Paraíba
  • Riselane de Lucena Alcântara Bruno Universidade Estadual da Paraíba

DOI:

https://doi.org/10.5433/1679-0359.2012v33n3p857

Keywords:

Chichá, Forest species, Germination.

Abstract

Sterculia striata A. St. Hil. & Naudin. is a native species that is used in reforestation and urban forestry. Displays hard seeds, consisting of problem for the nursery, since their hard seed coats and waterproof hinder and delay germination. This study aimed to determine the effect of pre-germinative treatments in the process of germination of Sterculia striata. The seeds were subjected to six treatments: control – intact seeds (T1), mechanical scarification with sandpaper. 80 opposite the micropylar (T2) with sulfuric acid concentrated by 15, 45 and 60 minutes (T3, T4 and T5 respectively) scarification and then immersion in water for 24 hours (T6). The characteristics evaluated were: seedling emergence, emergency first count, speed of emergence, as well as length and dry mass of shoot and root of seedlings. The scarification with sandpaper number 80 on the opposite side of micropylar favors the percentage of seedlings in the first count, and recommended rapid and uniform emergence of seeds of Sterculia striata.

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Author Biographies

Kelina Bernardo Silva, Universidade Estadual da Paraíba

Profª Adjunta, Deptº. de Agrárias e Exatas, Universidade Estadual da Paraíba, UEPB, Catolé do Rocha, PB.

Marlene Feliciano Mata, Universidade Estadual da Paraíba

Doutoranda do curso de Pós-graduação em Agronomia, Universidade Federal da Paraíba, UFB, Areia, PB.

Riselane de Lucena Alcântara Bruno, Universidade Estadual da Paraíba

Profª Adjunta, Deptº. de Fitotecnia, UFB, Areia, PB.

Published

2012-06-28

How to Cite

Silva, K. B., Mata, M. F., & Bruno, R. de L. A. (2012). Pre-germinative treatments to overcome dormancy of Sterculia striata A. St. Hil. & Naldin seeds. Semina: Ciências Agrárias, 33(3), 857–866. https://doi.org/10.5433/1679-0359.2012v33n3p857

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