INVESTIGADORES
ARANIBAR julieta Nelida
artículos
Título:
Breeding system of Bulnesia retama (Gill. EX Hook) Gris. (Zygophyllaceae) in the Central Monte Desert (Mendoza, Argentina).
Autor/es:
GUILLERMO DEBANDI; BERTILDE ROSSI; JULIETA N. ARANIBAR; JOSÉ A. AMBROSETTI; IRIS PERALTA
Revista:
JOURNAL OF ARID ENVIRONMENTS
Editorial:
ACADEMIC PRESS LTD-ELSEVIER SCIENCE LTD
Referencias:
Año: 2002 vol. 51 p. 141 - 152
ISSN:
0140-1963
Resumen:
Reproductive and phenological patterns of Bulnesia retama were analysed in
the N acuna´n Biosphere Reserve. Flowering spanned approximately 4 weeks,
while mature fruits dispersed in 75 days. Six flower stages were determined,
protogyny occurred in early stages, receptive stigmas and nectar production
were detected during stages 14. Pollinator and flower predator behaviors are
described. Mating treatments namely autogamy, geitonogamy, cross-pollination,
and an open pollinated control showed statistical differences in seed and
fruit production. Seed viability was high in all four treatments. Although B.
retama has been considered self-compatible, few seeds were produced by
selfing compared with cross-pollination, suggesting inbreeding depression.