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A comparative study of the seed germination biology of a narrow endemic and two geographically-widespread species of Solidago (Asteraceae). 4. Role of soil moisture in regulating 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

Seeds of the narrow-endemic Solidago shortii and of the geographically-widespread S. altissima and S. nemoralis buried in December 1993 were exhumed in June 1995 and given 10 cycles of 1 day wet/5 days dry, 9 of 2/5, 8 of 3/5, 7 of 4/5 and 6 of 5/5 in light at 30/15°C; the control was kept continuously wet during the experiment. Seeds of the three species incubated on wet substrate for 3, 4 or 5 days germinated to ≥47% during the first cycle. On the other hand, seeds kept moist 2 days germinated to only 4–26% in the first cycle, and none kept moist for 1 day germinated. Cumulative germination percentages of seeds of all three species at the end of the final cycle of the 1/5 treatment were 0–4%. In the 2/5 treatment, cumulative germination percentages of S. altissima and S. shortii seeds at the end of the final cycle were 50 and 41%, respectively, but that of S. nemoralis was only 4%. For all three species, cumulative germination percentages were ≥55% at the end of the final cycle of the 3/5, 4/5 and 5/5 treatments. Control seeds of the three species germinated to 85–99% after 2 weeks, and no additional seeds germinated during the remainder of the experiment. High percentages of seeds were viable in the treatments and control at the end of the experiment; however, some seeds of S. nemoralis and S. shortii given 1/5, 2/5 and 3/5 treatments became dormant. The ecological implication of this study is that seeds of the three species will not germinate on the soil surface after brief rainfall events in summer. The germination response of the narrow endemic is similar to that of its two geographically-widespread congeners.

Keywords

Asteraceaeendemismgerminationseed hydration memorysoil moistureSolidago
Type
Ecology
Information
Seed Science Research , Volume 7 , Issue 3 , September 1997 , pp. 303 - 310
Copyright
Copyright © Cambridge University Press 1997

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References

Akalehiywot, T. and Bewley, J.D. (1980) Desiccation of oat grains during and following germination, and its effects upon protein synthesis. Canadian Journal of Botany 58, 2349–2355.CrossRefGoogle Scholar
Allen, P.S., White, D.B. and Markhart, A.H. III. (1993) Germination of perennial ryegrass and annual bluegrass seeds subjected to hydration-dehydration cycles. Crop Science 33, 1020–1025.CrossRefGoogle Scholar
Baskin, C.C. and Baskin, J.M. (1994) Germination requirements of Oenothera biennis seeds during burial under natural seasonal temperature cycles. Canadian Journal of Botany 72, 779–782.CrossRefGoogle Scholar
Baskin, J.M. and Baskin, C.C. (1981) Seasonal changes in germination responses of buried seeds of Verbascum thapsus and V. blattaria and ecological implications. Canadian Journal of Botany 59, 1769–1775.Google Scholar
Baskin, J.M. and Baskin, C.C. (1982) Effects of wetting and drying cycles on the germination of seeds of Cyperus inflexus. Ecology 63, 248–252.CrossRefGoogle Scholar
Baskin, J.M. and Baskin, C.C. (1985) Does seed dormancy play a role in the germination ecology of Rumex crispus? Weed Science 33, 340–343.CrossRefGoogle 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.CrossRefGoogle Scholar
Courtney, A.D. (1968) Seed dormancy and field emergence in Polygonum aviculare. Journal of Applied Ecology 5, 675–684.Google Scholar
Doucet, C. and Cavers, P.B. (1996) A persistent seed bank of the bull thistle Cirsium vulgare. Canadian Journal of Botany 74, 1386–1391.CrossRefGoogle Scholar
Dubrovsky, J.G. (1996) Seed hydration memory in Sonoran desert cacti and its ecological implication. American Journal of Botany 83, 624–632.CrossRefGoogle Scholar
Egley, G.H. (1995) Seed germination in soil: dormancy cycles. pp 529–543in Kigel, J. and Galili, G. (Eds) Seed development and germination. New York, Marcel Dekker, Inc.Google Scholar
Johnson, C.D. and Thomas, A.G. (1978) Recruitment and survival of seedlings of a perennial Hieracium species in a patchy environment. Canadian Journal of Botany 56, 572–580.Google Scholar
Khan, A.A. and Karssen, C.M. (1980) Induction of secondary dormancy in Chenopodium bonus-henricus L. seeds by osmotic and high temperature treatments and its prevention by light and growth regulators. Plant Physiology 66, 175–181.Google Scholar
Ligon, J.T., Elam, A.B. Jr. and Dickson, D.G. (1967) Occurrence of soil moisture deficiency in Kentucky. University of Kentucky Agricultural Experiment Station Bulletin 706.Google Scholar
National Oceanic and Atmospheric Administration (NOAA) (1994a) Climatological data — Kentucky, July 1994. Vol. 89, No. 7, pp 1–32. North Carolina, Asheville, US Department of Commerce, National Environmental Satellite, Data and Information Service, National Climatic Data Center.Google Scholar
National Oceanic and Atmospheric Administration (NOAA) (1994b) Climatological data — Kentucky, August 1994. Vol. 89, No. 8, pp 1–24. North Carolina, Asheville, US Department of Commerce, National Environmental Satellite, Data and Information Service, National Climatic Data Center.Google Scholar
National Oceanic and Atmospheric Administration (NOAA) (1995a) Climatological data — Kentucky, June 1995. Vol. 90, No. 6, pp 1–32. North Carolina, Asheville, US Department of Commerce, National Environmental Satellite, Data and Information Service, National Climatic Data Center.Google Scholar
National Oceanic and Atmospheric Administration (NOAA) (1995b) Climatological data — Kentucky, July 1995. Vol. 90, No. 7, pp 1–36. North Carolina, Asheville, US Department of Commerce, National Environmental Satellite, Data and Information Service, National Climatic Data Center.Google Scholar
National Oceanic and Atmospheric Administration (NOAA) (1995c) Climatological data — Indiana, July 1995. Vol. 100, No. 7, pp 1–36. North Carolina, Asheville, US Department of Commerce, National Environmental Satellite, Data and Information Service, National Climatic Data Center.Google Scholar
National Oceanic and Atmospheric Administration (NOAA) (1995d) Climatological data — Tennessee, July 1995. Vol. 100, No. 7, pp 1–30. North Carolina, Asheville, US Department of Commerce, National Environmental Satellite, Data and Information Service, National Climatic Data Center.Google Scholar
National Oceanic and Atmospheric Administration (NOAA) (1995e) Climatological data — Kentucky, August 1995. Vol. 90, No. 8, pp 1–30. North Carolina, Asheville, US Department of Commerce, National Environmental Satellite, Data and Information Service, National Climatic Data Center.Google Scholar
Roberts, H.A. and Potter, M.E. (1980) Emergence patterns of weed seedlings in relation to cultivation and rainfall. Weed Research 20, 377–386.CrossRefGoogle Scholar
SAS Institute Inc. (1985) SAS user's guide: statistics. Cary, North Carolina.Google Scholar
Staniforth, R.J. and Cavers, P.B. (1979) Field and laboratory germination responses of achenes of Polygonum lapathifolium, P. pensylvanicum, and P. persicaria. Canadian Journal of Botany 57, 877–885.CrossRefGoogle Scholar
Stoller, E.W. and Wax, L.M. (1973) Periodicity of germination and emergence of some annual weeds. Weed Science 21, 574–580.CrossRefGoogle Scholar
Trewartha, G.T. (1968) An introduction to climate. 4th edition. New York, McGraw-Hill Book Company.Google Scholar
Vincent, E.M. and Cavers, P.B. (1978) The effects of wetting and drying on the subsequent germination of Rumex crispus. Canadian Journal of Botany 56, 2207–2217.CrossRefGoogle 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.CrossRefGoogle 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.CrossRefGoogle Scholar
Walck, J.L., Baskin, J.M. and Baskin, C.C. (1997c) A comparative study of the seed germination biology of a narrow endemic and two geographically-widespread species of Solidago (Asteraceae). 3. Photoecology of germination. Seed Science Research 7, 293–301.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