Seed germination and dispersal in Glaucium flavum Crantz (Papaveraceae)
DOI:
https://doi.org/10.24310/abm.v21i0.8670Keywords:
Glaucium flavum, Papaveraceae, seed dispersal, dormancy, germination, synaptospermyAbstract
Many plant species produce two kind of seeds, dispersed seeds and non-dispersed seeds. Generaly, dispersed seeds have no dormancy while non-dispersed seeds have. In the present paper, this hypothesis is tested with Glaucium flavum seeds, through an experimental framework, which also included inter- and intraindividual variation. Results do not sustain the predictions. Dispersed seeds are more dormant than the others. In this species, dormancy in dispersed seeds must be consider with synaptospermy. Dormancy can be an adaptation to seedling competition.
Downloads
References
BRAUN-BLANQUET, J. -1952- Les Groupements Végétaux de la France Méditerranéenne. C.N.R.S., France.
HARPER, J.L. -1990- Population Biology of Plants. Academic press, London.
HARPER, J.L. et I.H. NAUGHTON -1960- The inheritance of dormancy in inter- and intraspecific hybrids of Papaver. Heredity, 15: 315-320. DOI: https://doi.org/10.1038/hdy.1960.85
MINEAU, H. -1990- Róle des conditions climatiques dans les caractéristiques germinatives de diaspores de Scabiosa atropurpurea: implications dans la reconstitution de la banque de diaspores. Acta Oecologica, 11 (2): 235-243.
MINEAU, H. et S. PUECH -1987- Le mode de germination des diaspores et la resistance des plantes á la sécheresse estivate, chez quelques espéces herbacées colonisatrices de talus routiers. Ecologia Medit., XIII: 43-51.
MINEAU, H. et S. PUECH -1988- La levee des plantules et la resistance á la sécheresse estivate, chez quelques especes herbacées colonisatrices de talus routies. In: Time scales and water process. Proc. 5th Int. Conf. on Medit. Ecosystems, I.U.B.S., Paris. DOI: https://doi.org/10.3406/ecmed.1987.1610
MOWAT, A.B. -1964- G. Miller. Flora Europaea, vol I (Lycopodiaceae to Platanaceae). Cambridge University Press.
OLIVIERI, I. et A. BERGER -1985- Seed dimorphism for dispersal: physiological, genetic, and demographical aspects. In P. Jacquard, G. Heim &J. Antonovics (eds.) NATO ASI Series, Genetic Differentiation and Dispersal in Plants. DOI: https://doi.org/10.1007/978-3-642-70837-4_27
OLIVIER', I., D. COUVET, P.H. GOUYON -1990- The Genetics of Transient Populations: Research at the Metapopulation Level. Tree, 5 (7): 207- 210. DOI: https://doi.org/10.1016/0169-5347(90)90132-W
OLIVIERI, I., M. SWAN, et P.H. GOUYON -1983- Reproductive system and colonizing strategy of two species of Carduus (compositae). Oecologia, 60: 114-117. DOI: https://doi.org/10.1007/BF00379329
SCHAT, H. -1981- Seed polymorphism and germination ecology of Plantago coronopus L. Acta oecologia, 2 (16): 367-380.
SCOTT, G.A. -1962- G. flavum Crantz. Journal of Ecology, 68: 743-754. DOI: https://doi.org/10.2307/2257761
SOKAL, R.R. et F.J. ROHLF -1981- Biometry, the principles and practice of statistics in biological research. 2nd edition, New-York, USA.
SOUSA, W.P. -1984- The role of disturbance in natural communities. Ann. Rev. Ecol. Syst., 15: 353-391. DOI: https://doi.org/10.1146/annurev.es.15.110184.002033
TELENIUS, A. et P. TORTENSON -1989- The seed dimorphism of Spergularia marina in relation to dispersal by wind and water. Oecologia, 80: 206-210. DOI: https://doi.org/10.1007/BF00380152
VAN DER PIJL, L. -1972- Principles of dispersal in higher plants. 2nd Edition, Springer-Verlag, Berlin, Heidelberg, New York. DOI: https://doi.org/10.1007/978-3-642-96108-3
VENABLE, D.L. et L. LAWLOR -1980- Delayed Germination and Dispersal in Desert Annuals: Escape in Space and Time. Oecologia, 46: 272- 282. DOI: https://doi.org/10.1007/BF00540137
VENABLE, D.L. et D.A. LEVIN -1985- Ecology of akene dimorphism in Heterotheca latifolia. I. Akéne structure, germination and dispersal. J. Ecol., 73: 133-145. DOI: https://doi.org/10.2307/2259774
VENABLE, D.L., A. BURQUEZ, G. CORRAL, E. MORALES et F. ESPINOSA -1987- The ecology of seed heteromorphism in Heterosperma pinnatum in Central Mexico. Ecology, 68: 65-76. DOI: https://doi.org/10.2307/1938805
WHITE, P.S. -1979- Pattern, process, and natural disturbance in vegetation. Bot. Rev., 45: 229- 299. DOI: https://doi.org/10.1007/BF02860857
Downloads
Published
How to Cite
Issue
Section
License
All information related to the licensing of published works in Acta Botanica Malacitana and copyright can be found in our Editorial Policy.
How to Cite
1.png)
