Artículo
Abstract:
Observations made in Salta, northern Argentina, for a complete flowering season of five plants from several patches, allowed the authors to conclude: 1. anthesis lasts 9-13 hours and consists of two floral phases, in the last of which the stigma is not receptive; 2. stigma is receptive in the bud when anthers are not dehiscent, hence the flowers are protogynous; 3. nectar is secreted during phase 1 only; 4. the nectar composition fits that of melittophylous plants; 5. rain or drizzle do not affect the nectar composition or pollen viability because they are highly protected but do affect visitation by pollinators; 6. flowers are flag-blossom pollination units with pollen presented on stylar subapical trichomes, adapted to medium-sized hymenopterans, which transfer the pollen on their heads; 7. the ISI and RRS reproductive indeses show that the variety is partially self-compatible, but insect visitation increases reproductive success; 8. individuals of Centris sp. and a breed of Bombus atratus are the most important legitimate visitors because they work on all conspecific plants and suck nectar in few flowers (phase 1) per plant during each visit, while individuals of Bombus opifex, the other breed of B.atratus and Megachile spp. are also legitimate pollinators but less frequent or not constant; 9. some Lepidoptera are nectar robbers because they suck nectar but do not trigger the pollen transfer mechanism.
Registro:
| Documento: | Artículo |
| Título: | Biología floral y sistema reproductivo de Phaseolus vulgaris var. aborigineus (Fabaceae) |
| Autor: | Hoc, P.S.; Amela García, M.T. |
| Filiación: | Fac. de Ciencias Exactas y Naturales, Ciudad Universitaria, Pab. 2, 1428 Buenos Aires, Argentina |
| Palabras clave: | Argentina; Fabaceae; Floral biology; Phaseolus; Reproductive system |
| Año: | 1999 |
| Volumen: | 47 |
| Número: | 1-2 |
| Página de inicio: | 59 |
| Página de fin: | 67 |
| Título revista: | Revista de Biologia Tropical |
| Título revista abreviado: | Rev. Biol. Trop. |
| ISSN: | 00347744 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00347744_v47_n1-2_p59_Hoc |
Referencias:
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- Burkart, A., (1952) Las Leguminosas Argentinas Silvestres y Cultivadas, , Acme, Buenos Aires. 569 p
- Cruden, R.W., Hermann, S.M., Peterson, S., Patterns of nectar production and plant-pollinator coevolution (1983) The Biology of Nectaries, pp. 80-125. , B. Bentley & Th. Elías (eds.). Columbia University, Itaca, Nueva York
- Dafni, A., (1992) Pollination Ecology. A Practical Approach, , Oxford University, Oxford. 250 p
- Debouck, D., (1988) Genetic Resources of Phaseolus Beans, pp. 3-29. , P. Gepts (ed.). Kluwer Academic, Dordrecht, Holanda
- Delgado Salinas, A., Bonnet, A., Gepts, P., (1988) Genetic Resources of Phaseolus Beans, pp. 163-184. , Gepts (ed.) Kluwer Academic, Dordtrecht, Holanda
- Erdtman, G., (1952) Pollen Morphology and Plant Taxonomy. Angiosperms. (An Introduction to Palynology I), , Almquist & Wicksell, Estocolmo. 539 p
- Faegri, K., Van Der Pijl, L., (1979) The Principles of Pollination Ecology, , Pergamon, Oxford. 244 p
- Freyre, R., Ríos, R., Guzmán, L., Debouck, D.G., Gepts, E., Ecogeographic distribution of phaseolus spp. (Fabaceae) in Bolivia (1996) Econ. Bot., 50, pp. 195-215
- Genise, J., Palacios, R.A., Hoc, P.S., Carrizo, R., Moffat, L., Mom, M.P., Agulló, M.A., Torregrosa, S., Observaciones sobre la biología floral de Prosopis (Leguminosae, Mimosoideae). II. Fases florales y visitantes en el distrito chaqueño serrano (1990) Darwiniana, 30, pp. 71-85
- Greissl, R., Vitality analysis of monadic and polyadic pollen grains using optical contrast fluorescence microscopy (1989) Zeiss, Sci. and Techn. Inform., 15, pp. 180-184
- Hoc, P.S., García, M.T.A., Floral biology and reproductive system of Phaseolus augusti (Fabaceae) (1998) Beitr. Biol. Pflanzen, 70. , en prensa
- Mc Gregor, S.E., Insect pollination of cultivated plant crops (1976) U. S. Dep. Agric. Handbook, 496. , 411 p
- Nakamura, R.R., Seed abortion and seed variation within ruits of Phaseolus vulgaris: Pollen donor and resource limitation effects (1988) Amer. J. Bot., 75, pp. 1003-1010
- Osborn, M.M., Kevan, P.G., Lane, M.A., Pollinaton biology of Opuntia polyacantha and Opuntia phaeacantha (Cactaceae) in Southern Colorado (1988) Pl. Syst. Evol., 159, pp. 85-94
- Stanton, M.L., Preston, R.E., A cualitative model for evaluating the effects of flower atractiveness on male and female fitness in plants (1988) Am. J. Bot., 75, pp. 540-544
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Citas:
---------- APA ----------
Hoc, P.S. & Amela García, M.T. (1999) . Biología floral y sistema reproductivo de Phaseolus vulgaris var. aborigineus (Fabaceae). Revista de Biologia Tropical, 47(1-2), 59-67.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00347744_v47_n1-2_p59_Hoc [ ]
---------- CHICAGO ----------
Hoc, P.S., Amela García, M.T. "Biología floral y sistema reproductivo de Phaseolus vulgaris var. aborigineus (Fabaceae)" . Revista de Biologia Tropical 47, no. 1-2 (1999) : 59-67.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00347744_v47_n1-2_p59_Hoc [ ]
---------- MLA ----------
Hoc, P.S., Amela García, M.T. "Biología floral y sistema reproductivo de Phaseolus vulgaris var. aborigineus (Fabaceae)" . Revista de Biologia Tropical, vol. 47, no. 1-2, 1999, pp. 59-67.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00347744_v47_n1-2_p59_Hoc [ ]
---------- VANCOUVER ----------
Hoc, P.S., Amela García, M.T. Biología floral y sistema reproductivo de Phaseolus vulgaris var. aborigineus (Fabaceae). Rev. Biol. Trop. 1999;47(1-2):59-67.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00347744_v47_n1-2_p59_Hoc [ ]
