Overcoming Seed Dormancy of Enterolobium contortisiliquum (Vell.) Morong

Júnior, Manuel Tomaz Ataíde and Barros, Daniella Inácio and Nunes, Helber Veras and Abreu, Higor Ângelo de and Oliveira, Liomar Borges de and Sales, Paulo Victor Gomes and Quirino, Mariana Senna and Damascena, Jossimara Ferreira and Silva, Lorrayne Martins da and Silva, Lara Alves Valério da and Araújo, Geovana Bispo de and Santos, André Ferreira dos and Ribeiro, Evandro Alves (2022) Overcoming Seed Dormancy of Enterolobium contortisiliquum (Vell.) Morong. Journal of Scientific Research and Reports. pp. 7-14. ISSN 2320-0227

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Abstract

The use of new methods may facilitate the production of seedlings for reforestation since the seed market is scarce and seedlings take time to be produced. The Earpod tree is a native species that can be used for the floristic recomposition of the biome and with the possibility of using wood for commercial purposes. In this sense, the present work aimed to evaluate different methods of overcoming dormancy of the Enterolobium contortisiliquum (Vell.) Morong. Seven treatments were performed with 5 replications: T0: control, T1: mechanical scarification with a rasp, T2: mechanical scarification with welding electric appliance, T3: mechanical scarification with cutting pliers, T4 y T5: chemical scarification with sodium hydroxide 30% for 25 minutes and 30 minutes, respectively, and T6: immersion in 100°C water for 7 minutes. The following variables were evaluated: percentage of emergence, emergence speed index (ESI), the height of seedlings, number of leaves per seedling, stem diameter, and length of a root system. The mechanical scarification method with cutting pliers was the most efficient, with an emergence percentage of 96% and plant emergence speed indexes of 9.79. The treatments, chemical scarification with sodium hydroxide 30% for 30 and 25 minutes, and control showed low efficiency in overcoming dormancy, with an emergence percentage of 2, 6, and 4% and emergence rates of 0.14, 0.37 and 0.24.

Item Type: Article
Subjects: Eurolib Press > Multidisciplinary
Depositing User: Managing Editor
Date Deposited: 05 Jan 2023 06:43
Last Modified: 18 Sep 2023 10:57
URI: http://info.submit4journal.com/id/eprint/712

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