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A comparative study of the seed germination biology of a narrow endemic and two geographically-widespread species of Solidago (Asteraceae). 3. Photoecology of germination

Published online by Cambridge University Press:  19 September 2008

Jeffrey L. Walck ,
Jerry M. Baskin  and
Carol C. Baskin
Jeffrey L. Walck*
Affiliation:
School of Biological Sciences, University of Kentucky, Lexington, Kentucky, 40506–0225, USA
Jerry M. Baskin
Affiliation:
School of Biological Sciences, University of Kentucky, Lexington, Kentucky, 40506–0225, USA
Carol C. Baskin
Affiliation:
School of Biological Sciences, University of Kentucky, Lexington, Kentucky, 40506–0225, USA
*
*Correspondence
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Abstract

Regardless of whether or not seeds of the geographically-widespread Solidago altissima and S. nemoralis were exposed to light in autumn, those ‘dispersed’ in autumn (15/°C) or winter (5°C) required 12 weeks of light in winter to germinate to ≥80% in darkness in spring (2 weeks at 20/10°C). On the other hand, seeds of the narrow-endemic S. shortii dispersed in autumn and exposed to ≥2 weeks of light in early winter germinated to ≥77% in darkness in spring, and those dispersed in winter and exposed to ≥6 weeks of light germinated to ≥82%. S. altissima and S. nemoralis seeds not exposed to light during any season germinated to only 0–1% in darkness in spring, whereas S. shortii seeds germinated to 45–56%. Seeds of S. altissima and S. nemoralis kept in darkness in autumn and winter needed a 1-day (14-h photoperiod) light exposure in spring to germinate to ≥75% in darkness, whereas those of S. shortii required only one 5-s exposure. Cold-stratified (nondormant) seeds of S. altissima, S. nemoralis and S. shortii exposed to light with a high far-red/red ratio germinated to significantly higher percentages than dark controls and freshly-matured and lab-stored seeds. Results of this study suggest that a soil seed bank of S. shortii should be smaller and be depleted at a faster rate than those of S. altissima and S. nemoralis, and portions of the seeds of the three species can germinate in the far-red-enriched light under plant canopies.

Keywords

Asteraceaeendemismfar-red lightgerminationphotoecologyseed bankSolidago
Type
Ecology
Information
Seed Science Research , Volume 7 , Issue 3 , September 1997 , pp. 293 - 302
Copyright
Copyright © Cambridge University Press 1997

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References

Baskin, J.M. and Baskin, C.C. (1971) The possible ecological significance of the light requirement for germination in Cyperus inflexus. Bulletin of the Torrey Botanical Club 98, 25–33.Google Scholar
Baskin, J.M. and Baskin, C.C. (1972) The light factor in the germination ecology of Draba verna. American Journal of Botany 59, 756–759.Google Scholar
Baskin, J.M. and Baskin, C.C. (1985a) The light requirement for germination of Aster pilosus seeds: temporal aspects and ecological consequences. Journal of Ecology 73, 765–773.Google Scholar
Baskin, J.M. and Baskin, C.C. (1985b) Does seed dormancy play a role in the germination ecology of Rumex crispus? Weed Science 33, 340–343.Google Scholar
Baskin, J.M. and Baskin, C.C. (1989) Physiology of dormancy and germination in relation to seed bank ecology. pp 53–66in Leck, M.A., Parker, V.T. and Simpson, R.L. (Eds) Ecology of soil seed banks. San Diego, Academic Press, Inc.CrossRefGoogle Scholar
Beimborn, W.A. (1970) Establishment ecology of gray goldenrod (Solidago nemoralis Ait.). MS Thesis, Rutgers University, New Brunswick, New Jersey.Google Scholar
Beimborn, W.A. (1973) Physical factors affecting establishment of Solidago nemoralis on the New Jersey Piedmont. PhD Thesis, Rutgers University, New Brunswick, New Jersey.Google Scholar
Buchele, D.E., Baskin, J.M. and Baskin, C.C. (1989) Ecology of the endangered species Solidago shortii. I. Geography, populations, and physical habitat. Bulletin of the Torrey Botanical Club 116, 344–355.Google Scholar
Buchele, D.E., Baskin, J.M. and Baskin, C.C. (1991) Ecology of the endangered species Solidago shortii. II. Ecological life cycle. Bulletin of the Torrey Botanical Club 118, 281–287.CrossRefGoogle Scholar
Cone, J.W., Jaspers, P.A.P.M. and Kendrick, R.E. (1985) Biphasic fluence-response curves for light induced germination of Arabidopsis thaliana seeds. Plant, Cell and Environment 8, 605–612.CrossRefGoogle Scholar
Cornelius, R. (1990) The strategies of Solidago canadensis L. in relation to urban habitats. I. Resource requirements. Acta Oecologica 11, 19–34.Google Scholar
Fenner, M. (1980a) Germination tests on thirty-two east African weed species. Weed Research 20, 135–138.CrossRefGoogle Scholar
Fenner, M. (1980b) The induction of a light requirement in Bidens pilosa seeds by leaf canopy shade. New Phytologist 84, 103–106.CrossRefGoogle Scholar
Fenner, M. (1985) Seed ecology. London, Chapman and Hall.CrossRefGoogle Scholar
Górski, T. (1975) Germination of seeds in the shadow of plants. Physiologia Plantarum 34, 342–346.Google Scholar
Hilton, J.R. (1982) An unusual effect of the far-red absorbing form of phytochrome: photoinhibition of seed germination in Bromus sterilis L. Planta 155, 524–528.CrossRefGoogle Scholar
Holm, R.E. (1972) Volatile metabolites controlling germination in buried weed seeds. Plant Physiology 50, 293–297.CrossRefGoogle ScholarPubMed
McArthur, J.A. (1978) Light effects upon dry lettuce seeds. Planta 144, 1–5.Google Scholar
Milberg, P., Andersson, L. and Noronha, A. (1996) Seed germination after short-duration light exposure: implications for the photo-control of weeds. Journal of Applied Ecology 33, 1469–1478.Google Scholar
Pons, T.L. (1984) Possible significance of changes in the light requirement of Cirsium palustre seeds after dispersal in ash coppice. Plant, Cell and Environment 7, 263–268.CrossRefGoogle Scholar
Root, R.A. (1971) Selected aspects of the ecophysiology of Solidago canadensis: the phytotoxicity of the species and its role in old-field ecosystems. PhD Thesis, Miami University, Oxford, Ohio.Google Scholar
Salisbury, F.B. and Ross, C.W. (1992) Plant physiology. 4th edition. California, Belmont, Wadsworth Publishing Company.Google Scholar
SAS Institute Inc. (1985) SAS user's guide: statistics. Cary, North Carolina.Google Scholar
Sauer, J. and Struik, G. (1964) A possible ecological relation between soil disturbance, light-flash, and seed germination. Ecology 45, 884–886.Google Scholar
Scopel, A.L., Ballaré, C.L. and Sánchez, R.A. (1991) Induction of extreme light sensitivity in buried weed seeds and its role in the perception of soil cultivations. Plant, Cell and Environment 14, 501–508.Google Scholar
Scopel, A.L., Ballaré, C.L. and Radosevich, S.R. (1994) Photostimulation of seed germination during soil tillage. New Phytologist 126, 145–152.CrossRefGoogle Scholar
Silvertown, J. (1980) Leaf-canopy-induced seed dormancy in a grassland flora. New Phytologist 85, 109–118.CrossRefGoogle Scholar
Smith, H. (1982) Light quality, photoperception, and plant strategy. Annual Review of Plant Physiology 33, 481–518.CrossRefGoogle Scholar
Smith, H. (1995) Physiological and ecological function within the phytochrome family. Annual Review of Plant Physiology and Plant Molecular Biology 46, 289–315.Google Scholar
Thompson, K., Band, S.R. and Hodgson, J.G. (1993) Seed size and shape predict persistence in soil. Functional Ecology 7, 236–241.Google Scholar
Valio, I.F.M., Kirszenzaft, S.L. and Rocha, R.F. (1972) Germination of achenes of Bidens pilosa L. I. Effect of light of different wavelengths. New Phytologist 71, 677–682.CrossRefGoogle Scholar
van der Valk, A.G. (1974) Environmental factors controlling the distribution of forbs on coastal foredunes in Cape Hatteras National Seashore. Canadian Journal of Botany 52, 1057–1073.Google Scholar
VanDerWoude, W.J. and Toole, V.K. (1980) Studies of the mechanism of enhancement of phytochrome-dependent lettuce seed germination by prechilling. Plant Physiology 66, 220–224.Google Scholar
Vleeshouwers, L.M., Bouwmeester, H.J. and Karssen, C.M. (1995) Redefining seed dormancy: an attempt to integrate physiology and ecology. Journal of Ecology 83, 1031–1037.Google Scholar
Voesenek, L.A.C.J. and Blom, C.W.P.M. (1996) Plants and hormones: an ecophysiological view on timing and plasticity. Journal of Ecology 84, 111–119.Google Scholar
Voser-Huber, M.L. (1983) Studien an eingebürgerten Arten der Gattung Solidago L. Dissertationes Botanicae 68, 1–97.Google Scholar
Walck, J.L., Baskin, J.M. and Baskin, C.C. (1997a) A comparative study of the seed germination biology of a narrow endemic and two geographically-widespread species of Solidago (Asteraceae). 1. Germination phenology and effect of cold stratification on germination. Seed Science Research 7, 47–58.Google Scholar
Walck, J.L., Baskin, J.M. and Baskin, C.C. (1997b) A comparative study of the seed germination biology of a narrow endemic and two geographically-widespread species of Solidago (Asteraceae). 2. Germination responses of buried seeds in relation to seasonal temperature cycles. Seed Science Research 7, 209–220.Google Scholar
Wallis, A.L. Jr. (1977) Comparative climatic data through 1976. North Carolina, Asheville, US Department of Commerce, National Oceanic and Atmospheric Administration, Environmental Data Service, National Climatic Data Center.Google Scholar
Werner, P.A., Bradbury, I.K. and Gross, R.S. (1980) The biology of Canadian weeds. 45. Solidago canadensis L. Canadian Journal of Plant Science 60, 1393–1409.Google Scholar