Components of fecundity and abortion in a tropical tree, Dahlstedtia pentaphylla (Leguminosae)

• Autor(a) principal: Teixeira,Simone de Pádua
• Data de Publicação: 2006
• Outros Autores: Pereira,Rodrigo Augusto Santinelo, Ranga,Neusa Taroda
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Brazilian Archives of Biology and Technology
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000700007
• topic: Abortion; Atlantic Rainforest; Dahlstedtia pentaphylla; Leguminosae; reproduction

Studies were conducted on pollination and patterns of fruit and seed production to assess the potential factors causing high fruit and seed abortion in Dahlstedtia pentaphylla (Leguminosae) through analyses of relationships between flower position in the inflorescence and ovules and seeds within ovaries and fruits, and flower, fruit and seed abortion. No differences were found in pollination and fruit set as a function of inflorescence position. There was no relationship, neither between degenerating ovules and their position within the ovary, nor between developing seed and fruit position. Maternal resource limitation related to fruits and embryos, due to the high cost of fruit production and seed maturation, was one of the factors that led to a high abortion rate in D. pentaphylla.