Aspectos fenológicos, ecológicos e de produtividade do biribá (Rollinia mucosa (Jacq.) Baill.)

Abstract

Resumo São apresentados dados sobre fenologia, ecologia e produtividade do Biribá (Rollinia mucosa (Jacq.) Baill.). A floração e início de frutificação ocorrem, na região de Manaus, na época de menos precipitação. Foram encontradas quatro espécies de besouros da família Chrysomelidae visitando as flores. A produção de frutos foi equivalente, em média, a aproximadamente. 32% da produção de flores, apresentando correlações significativas entre o número de flores e os outros parâmetros de produção.

The diversity and evolution of pollination systems in Annonaceae

“…), and A. mucosa Jacq. (Falcão et al ., 1981; Webber, 1981a, 1992; Murray & Johnson, 1987; Gottsberger, 1989b; as R. mucosa Jacq. and R. jimenezii Saff.).…”

“…All these species are reported to be protogynous, with a 2‐day receptive cycle. The stigmas are shed before anther dehiscence in A. mucosa to prevent autogamy (Falcão et al ., 1981; Webber, 1981a, 1992), whereas in A. exsucca there appears to be some overlap between the pistillate and staminate phases (Webber, 1981a, 1992). The possibility of geitonogamy is reduced by synchronous dichogamy in A. mucosa (Murray & Johnson, 1987), in which only a small proportion of trees in a population bear pistillate‐ and staminate‐phase flowers concurrently.…”

“…The possibility of geitonogamy is reduced by synchronous dichogamy in A. mucosa (Murray & Johnson, 1987), in which only a small proportion of trees in a population bear pistillate‐ and staminate‐phase flowers concurrently. All species studied are visited by small diurnal or crepuscular beetles in Chrysomelidae, Nitidulidae and/or Staphylinidae (Falcão et al ., 1981; Webber, 1981a, 1992; Murray & Johnson, 1987; Jürgens et al ., 2000). The beetles are attracted to the flowers by a yeasty or (alcoholic) fruity scent and are rewarded with pollen as food.…”