Keywords
light
temperature
utricle
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Abstract
Five patterns of seed germination in the sedges of the genus Carex are presented, based on the literature data and the results of the authors' own research. They include the pattern of C. acutiformis, C. arenaria, C. remota, C. flava and C. communis. These patterns were constructed on the basis of seed specific requirements for development, such as stratification, temperature, dormancy and time of germination. Majority of sedges follow the pattern of C. acutiformis or C. remota. In both cases, stratification and either high or low temperature are essential for seed germination. Seeds that start to germinate early (C. remota pattern) are characterized by the absence of the distinct peaks of germination, as opposed to the C. acutiformis pattern with the germination peak in March. Our long-term investigations, conducted on the group of individuals in controlled conditions, revealed significant differences in seed size and the ability of seeds to germinate depending on the age of mother plants. We postulate that mother plant age is a new factor that should be considered in the construction of seed germination patterns.
References
Aponte C., Kazakis G., Ghosn D. & Papanastasis V. P. 2010. Characteristics of the soil seed bank in Mediterranean temporary ponds and its role in ecosystem dynamics. Wetl. Ecol. Manag. 18: 243-253.
Baskin C. C. & Baskin J. M. 1998. Seeds - Ecology, Biogeography, and Evolution of Dormancy and Germination. 49-63 pp. Academic Press, San Diego.
Baskin C. C., Chester W. E. & Baskin J. M. 1996. Effect of flooding on annual dormancy cycles in buried seeds of two wetland Carex species. Wetlands 16: 84-88.
Berg R. Y. 2009. Embryo sac, endosperm, and seed of Nemophila (Boraginaceae) relative to taxonomy, with a remark on embryogeny in Pholistoma. Am. J. Bot. 96(3): 565-579.
Brändel M. & Schütz W. 2005. Temperature effects on dormancy levels and germination in temperate forest sedges (Carex). Plant Ecol. 176: 245-261.
Budelsky R. A. & Galatowitsch S. M. 1999. Effects of moisture, temperature, and time on seed germination of five wetland Carices: implications for restoration. Restor. Ecol. 7: 86-97.
Cain M. L., Milligan B. G. & Strand A. E. 2000. Long-distance seed dispersal in plant populations. Am. J. Bot. 87(9): 1217-1227.
Davitashvili N. & Karrer G. 2010. Taxonomic importance of seed morphology in Gentiana (Gentianaceae). Bot. J. Linn. Soc. 162: 101-115.
Egawa C., Koyama A. & Tsuyuzaki S. 2009. Relationships between the developments of seedbank, standing vegetation and litter in a post-mined peatland. Plant Ecol. 203: 217-228.
Egorova T. 1999. The sedges (Carex L.) of Russia and adjacent states (within the limits of former Ussr). 772 pp. Missouri Garden Press, St. Petersburg, St.-Louis.
Fagündez J., Juan R., Fernández I., Pastor J. & Izco J. 2010. Systematic relevance of seed coat anatomy in the European heathers (Ericeae, Ericaceae). Plant Syst. Evol. 284: 65-76.
Jankowska-BŁAszczuk M. 2000. Zróżicowanie banków nasion w naturalnych i antropogenicznie przekształconych zbiorowiskach leśych. Monog. Bot. 88: 1-147.
Kettenring K. M. & Galatowitsch S. M. 2007. Temperature requirements for dormancy break and seed germination vary greatly among 14 wetland Carex species. Aquat. Bot. 87: 209-220.
Kettering K. M., Gardner G. & Galatowitsch S. M. 2006. Effect of light on seed germination of eight wetland Carex species. Ann. Bot. 98: 869-874.
Kobayashi M. & Kamitani T. 2000. Effects of surface disturbance and light level on seedling emergence in a Japanese secondary deciduous forest. J. Veg. Sci. 11: 93-100.
Kudoh H. & Whigham D. F. 2001. A genetic analysis of hydrologically dispersed seeds of Hibiscus moscheutos (Malvaceae). Am. J. Bot. 88(4): 588-593.
Kükenthal G. 1909. Cyperaceae-Caricoideae. In: A. Engler (ed.). Das Pflanzenreich, IV. 20, 824 pp. Wilhelm Engelmann, Leipzig.
Leck M. A. & Schütz W. 2005. Regeneration of Cyperaceae, with particular reference to seed ecology and seed banks. Perspect. Plant Ecol. Evol. Syst. 7: 95-133.
Lembicz M., Olejniczak P, Żukowski W. & Bogdanowicz A. M. 2010. Effect of mother plant age on germination and size of seeds and seedlings in the perennial sedge Carex secalina (Cyperaceae). Flora 206(2).
Lu L., Fritsch P. W., Bush C. M., Dong L., Wang H. & Li D. 2010. Systematic implications of seed coat diversity in Gaultherieae (Ericaceae). Bot. J. Linn. Soc. 162: 477-495.
Morris A. B., Baucom R. S., Cruzan M. B. 2002. Stratified analysis of the soil seed bank in the cedar glade endemic Astralagus bibullatus: evidence for historical changes in genetic structure. Am. J. Bot. 89(1): 23-36.
Ne'Man G., Ne'Mman R., Keith D. A. & Whelan R. J. 2009. Does post-fire plant regeneration mode affect the germination response to fire-related cues? Oecologia 159: 483-492.
Özcan T. 2008. Analysis of the total oil and fatty acid composition of seeds of some Boraginaceae taxa from Turkey. Plant Syst. Evol. 274: 143-153.
Phartyal S. S., Godefroid S. & Koedam N. 2009. Seed development and germination ecophysiology of the invasive tree Prunus serotina (Rosaceae) in a temperate forest in Western Europe. Plant Ecol. 204: 285-294.
Reznicek A. A. 1990. Evolution in sedges (Carex, Cyperaceae). Can. J. Bot. 68: 1409-1432
Schütz W. 1997a. Are germination strategies important for the ability of cespitose wetland sedges (Carex) to grow in forests? Can. J. Bot. 75: 1692-1699.
Schütz W. 1997b. Primary dormancy and annual dormancy cycles in seeds of six temperate wetland sedges. Aquat. Bot. 59: 75-85.
Schütz W. 1998. Seed dormancy cycles and germination phenologies in sedges (Carex) from various habitats. Wetlands 18(2): 288-297.
Schütz W. 2000. Ecology of seed dormancy and germination in sedges (Carex). Perspect. Plant Ecol. Evol. Syst. 3(1): 67-89.
Schütz W. 2002. Dormancy characteristics and germination timing in two alpine Carex species. Basic Appl. Ecol. 3: 125-134.
Simons A. M. & Johnston M. O. 2000. Variation in seed traits of Lobelia inflata (Campanulaceae): sources and fitness consequences. Am. J. Bot. 87(1): 124-132.
Yamada T., Imaichi R. & Kato M. 2001. Developmental morphology of ovules and seeds of Nymphaeales. Am. J. Bot. 88(6): 963-974.
Każmierczakowa R. & Zarzycki K. (eds.). 2001. Polska czerwona księga roślin. Paprotniki i rośliny kwiatowe, wyd. 2, 664 pp. PAN, Instytut Botaniki im. W. Szafera, Instytut Ochrony Przyrody, Kraków.
Żukowski W., Lembicz M., Olejniczak P., Bogdanowicz A., Chmiel J. & Rogowski A. 2005. Carex secalina (Cyperaceae), a species critically endangered in Europe: from propagule germination to propagule production. Acta Soc. Bot. Pol. 74: 141-147.