IMBIV 05474
INSTITUTO MULTIDISCIPLINARIO DE BIOLOGIA VEGETAL
Unidad Ejecutora - UE
artículos
Título:
Reproductive biology, seed germination and regeneration of Flourensia species endemic to Central Argentina (Asteraceae).
Autor/es:
COSA, M. T.; DELBON, N.; BERNARDELLO G.
Revista:
ADANSONIA. SéR. 3
Editorial:
PUBLICATIONS SCIENTIFIQUES DU MUSEUM, PARIS
Referencias:
Lugar: Paris; Año: 2017 vol. 39 p. 69 - 83
ISSN:
1280-8571
Resumen:
Our objective was to study reproductive biology, seed germination and regeneration, through morphoanatomical and field observations and controlled experiments, to assess reproductive strategies in six rare Flourensia endemic to Central Argentina (F. campestris, F. hirta, F. leptopoda, F. niederleinii, F. oolepis, F. tortuosa). Structure of capitula, flowers, and achenes was described. Capitula were visited by a variety of insects. Achenes required 30-45 days to mature. Fruit set varied significantly among species. Flourensia campestris and F. oolepis were self-incompatible. Seed viability decreased after 19 months and was lost after 32 months. Flourensia oolepis and F. campestris had the highest germination percentages (>60%); the addition of gibberellic acid in 2-months old seeds did not influence germination. The remaining species had lower germination percentages (
