Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-22T22:34:22.307Z Has data issue: false hasContentIssue false
  • English
  • Français

The role of fluctuations in soil water content on the regulation of dormancy changes in buried seeds of Polygonum aviculare L.

Published online by Cambridge University Press:  22 February 2007

Diego Batlla  and
Roberto Luis Benech-Arnold
Diego Batlla*
Affiliation:
IFEVA/Cátedra de Cerealicultura, CONICET/Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, C1417DSE-, Buenos Aires, Argentina
Roberto Luis Benech-Arnold
Affiliation:
IFEVA/Cátedra de Cerealicultura, CONICET/Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, C1417DSE-, Buenos Aires, Argentina
*
*Correspondence: Fax: +54 11 4524 8039/8053 (ext. 33), Email: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

It has been hypothesized that fluctuations in soil water content may affect the dormancy status of weed seed banks under field conditions. In this paper, we present results showing that fluctuations in soil water content affect the dormancy status of buried seeds of Polygonum aviculare L. stored at dormancy-releasing temperatures. Effects of fluctuations in soil water content on the dormancy status of P. aviculare seeds were evaluated by comparing changes in the range of temperatures and water potentials permissive for germination, and in the sensitivity to fluctuating temperatures, between seeds subjected to a moist soil regime (MS) or to a fluctuating soil water content regime (FS). In comparison to the dormancy release pattern observed for seeds subjected to MS, seeds subjected to FS generally showed an increase in their dormancy level after periods of storage under dry soil conditions, and a decrease in their dormancy level after periods of storage under moist soil conditions. These effects were more pronounced during early stages of the storage period, producing larger changes in the thermal and water potential range for seed germination than in the sensitivity of seeds to fluctuating temperatures. Seeds subjected to FS generally exhibited a lower mean low-limit temperature, lower mean thermal time and hydrotime requirements for germination, and a higher proportion of the seed population with the capacity to germinate in situ, than seeds subjected to MS. The results obtained suggested that fluctuations in soil water content could be an additional factor affecting dormancy and weed emergence patterns under field conditions.

Keywords

buried seedsdormancygerminationPolygonum avicularesoil water contentsoil water content fluctuationsweeds
Type
Research Article
Information
Seed Science Research , Volume 16 , Issue 1 , March 2006 , pp. 47 - 59
Copyright
Copyright © Cambridge University Press 2006

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Adams, R. (1999) Germination of Callitris seeds in relation to temperature, water stress, priming, and hydration–dehydration cycles. Journal of Arid Environments 43, 437–448.CrossRefGoogle Scholar
Allen, P.S., White, D.B. and Markhart, A.H. (1993) Germination of perennial ryegrass and annual bluegrass seeds subjected to hydration–dehydration cycles. Crop Science 33, 1020–1025.CrossRefGoogle Scholar
Anonymous (2000) Welcome to squeak! Available at http://www.squeak.org (accessed 24 November 2000).Google Scholar
Araki, S., Shiozawa, S. and Washitani, I. (1998) An experimental device for studying seed responses to naturally fluctuating temperature of surface soil under a constant water table. Functional Ecology 12, 492–499.CrossRefGoogle Scholar
Baskin, C.C. and Baskin, J.M. (1988) Germination ecophysiology of herbaceous plant species in a temperate region. American Journal of Botany 75, 286–305.CrossRefGoogle Scholar
Batlla, D. and Benech-Arnold, R.L. (2003) A quantitative analysis of dormancy loss dynamics in Polygonum aviculare L. seeds. Development of a thermal time model based on changes in seed population thermal parameters. Seed Science Research 13, 55–68.CrossRefGoogle Scholar
Batlla, D. and Benech-Arnold, R.L. (2004) A predictive model for dormancy loss in Polygonum aviculare L. seeds based on changes in population hydrotime parameters. Seed Science Research 14, 277–286.CrossRefGoogle Scholar
Batlla, D. and Benech-Arnold, R.L. (2005) Changes in light sensitivity of buried Polygonum aviculare L. seeds in relation to cold-induced dormancy loss. Development of a predictive model. New Phytologist 165, 445–452.CrossRefGoogle Scholar
Batlla, D., Verges, V. and Benech-Arnold, R.L. (2003) A quantitative analysis of seed responses to cycle-doses of fluctuating temperatures in relation to dormancy: Development of a thermal time model for Polygonum aviculare L. seeds. Seed Science Research 13, 197–207.CrossRefGoogle Scholar
Batlla, D., Kruk, B.C. and Benech-Arnold, R.L. (2004) Modelling changes in dormancy in weed soil seed banks: implications for the prediction of weed emergence. pp. 245–270. in Benech-Arnold, R.L.;, Sánchez, R.A. (Eds) Handbook of seed physiology: Applications to agriculture. New York, Harworth Press.Google Scholar
Bauer, M.C., Meyer, S. and Allen, P. (1998) A simulation model to predict seed dormancy loss in the field for Bromus tectorum L. Journal of Experimental Botany 49, 1235–1244.Google Scholar
Bouwmeester, H.J. (1990) The effect of environmental conditions on the seasonal dormancy pattern and germination of weed seeds. PhD thesis, Wageningen Agricultural University.Google Scholar
Bouwmeester, H.J. and Karssen, C.M. (1989) Environmental factors influencing the expression of dormancy patterns in weed seeds. Annals of Botany 63, 113–120.CrossRefGoogle Scholar
Bouwmeester, H.J. and Karssen, C.M. (1993a) Annual changes in dormancy and germination in seeds of Sisymbrium officinale (L.) Scop. New Phytologist 124, 179–191.CrossRefGoogle Scholar
Bouwmeester, H.J. and Karssen, C.M. (1993b) The effect of environmental conditions on the annual dormancy pattern of seeds of Spergula arvensis. Canadian Journal of Botany 71, 64–73.CrossRefGoogle Scholar
Bradford, K.J. (1990) A water relations analysis of seed germination rates. Plant Physiology 94, 840–849.CrossRefGoogle ScholarPubMed
Bradford, K.J. (1995) Water relations in seed germination. pp. 351–396. Kigel, J.;, Galili, A. (Eds) Seed development and germination New York, Marcel Dekker.Google Scholar
Dahal, P and Bradford, K.J. (1990) Effects of priming and endosperm integrity on seed germination rates of tomato genotypes. II. Germination at reduced water potential. Journal of Experimental Botany 41, 1441–1453.CrossRefGoogle Scholar
Dahal, P., Bradford, K.J. and Jones, R.A. (1990) Effects of priming and endosperm integrity on seed germination rates of tomato genotypes. 1. Germination at suboptimal temperature. Journal of Experimental Botany 41, 1431–1439.CrossRefGoogle Scholar
Downs, M.P. and Cavers, P.B. (2000) Effects of wetting and drying on seed germination and seedling emergence of bull thistle, Cirsium vulgare (Savi) Ten. Canadian Journal of Botany 78, 1545–1551.CrossRefGoogle Scholar
Dubrovsky, J.G. (1996) Seed hydration memory in Sonoran Desert cacti and its ecological implications. American Journal of Botany 83, 624–632.CrossRefGoogle Scholar
Egley, G.H. and Duke, S.O. (1985) Physiology of weed seed dormancy and germination. pp. 1–165. in Duke, S.O. (Ed.) Weed physiology. Reproduction and ecophysiology. Boca Ratón, USA, CRC Press.Google Scholar
Hegarty, T.W. (1978) The physiology of seed hydration and dehydration and the relation between water stress and the control of germination: a review. Plant, Cell and Environment 1, 101–119.CrossRefGoogle Scholar
Karssen, C.M. (1980/1981) Patterns of change in dormancy during burial of seeds in soil. Israel Journal of Botany 29, 65–73.Google Scholar
Karssen, C.M. (1982) Seasonal patterns of dormancy in weed seeds. pp. 243–270. in Khan, A. (Ed.) The physiology and biochemistry of seed development, dormancy and germination. Amsterdam, Elsevier Biomedical Press.Google Scholar
Karssen, C.M., Derkx, M.P.M and Post, B.J. (1988) Study of seasonal variation in dormancy of Spergula arvensis L. seeds in a condensed annual temperature cycle. Weed Research 28, 449–457.CrossRefGoogle Scholar
Kruk, B.C. and Benech-Arnold, R.L. (1998) Functional and quantitative analysis of seed thermal responses in prostrate knotweed (Polygonum aviculare) and common purslane (Portulaca oleracea). Weed Science 46, 83–90.CrossRefGoogle Scholar
Kruk, B.C. and Benech-Arnold, R.L. (2000) Evaluation of dormancy and germination responses to temperature in Carduus acanthoides and Anagallis arvensis, using a screening system, and relationship with field-observed emergence patterns. Seed Science Research 10, 77–88.CrossRefGoogle Scholar
Michel, B.E. (1983) Evaluation of the water potentials of solutions of polyethylene glycol 8000 both in the absence and presence of other solutes. Plant Physiology 72, 66–70.CrossRefGoogle ScholarPubMed
Ni, B.R. and Bradford, K.J. (1992) Quantitative models characterizing seed germination responses to abscisic acid and osmoticum. Plant Physiology 98, 1057–1068.CrossRefGoogle ScholarPubMed
Radosevich, S., Holt, J. and Ghersa, C (1997) Weed ecology. Implications for management. New York, John Wiley.Google Scholar
Russell, S.J. and Norvig, P. (1995) Artificial intelligence: A modern approach. Englewood Cliffs, New Jersey, Prentice Hall.Google Scholar
Staniforth, R.J. and Cavers, P.B. (1979) Field and laboratory germination responses of achenes of Polygonum lapathifolium L., P. pensylvanicum L. and P. persicaria L. 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
Vincent, E.M. and Cavers, P.B. (1978) The effects of wetting and drying on the subsequent germination of Rumex crispus L. Canadian Journal of Botany 56, 2207–2217.CrossRefGoogle Scholar
Vleeshouwers, L.M. (1997) Modelling weed emergence patterns. PhD dissertation, Wageningen Agricultural University.Google Scholar
Washitani, I. (1987) A convenient screening test system and a model for thermal germination responses of wild plant seeds: behaviour of model and real seed in the system. Plant, Cell and Environment 10, 587–598.CrossRefGoogle Scholar