Decomposition of yellow ipê [Handroanthus chrysotrichus (Mart. ex DC.) Mattos] seeds in the litter (serrapilheira)




Seed bank, Germination, Handroanthus chrysotrichus, Yellow-Ipê, Temperature


Studies aiming to understand native species seeds permanence in the seed bank of a forest may enhance the knowledge about forest ecology and the ecological restoration of degraded and/or disturbed environments. Therefore, the work aimed to evaluate Handroanthus chrysotrichus reproductive strategy in a forest environment. The seeds collected from the parent plants were sorted, classified, and categorized as: a) Viable; b) Predated; c) Aborted; d) Dark; e) Undefined. In the field, the seeds had the following treatments: a) seeds under litter; b) seed under the ground. Monthly experiment consisted of the following treatments: a) C - Control; b) SLP - seeds stored in the litter and that are predated; c) SLD - seeds stored in the litter and show signs of decomposition; d) SLI - seeds stored in the litter and thar are intact; e) SSP - seeds stored in the soil and that are predated; f) SSD - seeds stored in the soil and that show signs of decomposition; and g) SSI - seeds stored in the soil and that are intact. For the statistical analysis of the results, the non-parametric Kruskal-Wallis and the Chi-Square tests were used. The Handroanthus chrysotrichus (Mart. ex DC) Mattos species is an “R” strategist plant; The high decomposition and predation of its seeds, when dispersed in the soil or litter, prevent its permanence in the seed bank; The investment of the species in seeds with polyembryony is a survival strategy.

Biografia do Autor

Anna Hester Marotti Magalhaes

Bachelor in Biological Science, Federal University of Itajubá, Itajubá, Brazil.

Kévila Kelma Nascimento Silva dos Passos, Universidade Federal de Itajubá

Graduanda em Ciências Biológicas licenciatura (UNIFEI) e em Licenciatura em Música ( UNIFEI). Com curso de "Introduction to Family Engagement in Education", Havard University - EdX, HAVARD, Estados Unidos. Atualmente é membro no Projeto Semeando Cientistas da Universidade Federal de Itajubá e membro do NEFTI - Projeto Práticas Inclusivas no Ensino de Ciências e da Universidade Federal de Itajubá.

Katiúcia Dias Fernandes

PhD in Environment and Water Resources. Institute of Natural Resources, Federal University of Itajubá, Itajubá, Brazil.

Hisaias de Souza Almeida

PhD in Ecosystems Ecology, Federal University of Alfenas. Professor at the Natural Resources Institute, Federal University of Itajubá, Itajubá, Brazil.






Original Scientific Article