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2012 | 60 | 3 |

Tytuł artykułu

Effects of saline-alkaline stress on early growth strategy and colonization success of Flaveria bidentis ( L.) Kuntze (Asteraceae ) - a new exotic plant in Northern China


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Flaveria bidentis, an annual grass native to South America, has invaded into many countries all over the world, including South Africa and Egypt in Africa, Britain and France in Europe, Japan in Asia, and Australia. In China, this plant species has been widely distributed in Hebei province since 2001 of its first discovery in Tianjin. In salinized soil of northern China, F. bidentis has formed mono dominant communities owing to its opportunistic characteristics. In this study, we investigated germination rate, germination energy, germination index and vigor index in response to different saline-alkaline stresses. Lengths of seedling, hypocotyl, and radicle were also examined. During germination process, germination rate, germination energy, germination index, and vigor index decreased due to higher salinity and alkalinity (pH). Hypocotyl elongation was stimulated at low salinity and alkalinity, but decreased with increasing salinity and alkalinity. The lengths of radicle and seedling were inhibited sharply with increasing salinity and alkalinity. These results suggest that a reciprocal enhancement between salt stress and alkaline stress was a characteristic feature during seed germination of F. bidentis. Ungerminated seeds resumed to germinate after transferred to distilled water, indicating that seeds remained viable during their exposure to saline-alkaline stresses. Stepwise regression analysis indicated that the effects of salinity, alkalinity (pH), and buffer capacity on seed germination and seedling growth were significantly different in magnitude. Salinity and alkalinity (pH) were the dominant factors in seed germination and seedling growth of F. bidentis respectively. burther, the results of this study suggest that F. bidentis has developed excellent adaptative strategy in its early stage of life cycle which partially explains its current invasion success in northern China.








Opis fizyczny



  • College of Life Sciences, Nankai University, Tianjin 300071, China


  • Baskin Y. 2002 – A plague of rate and rubbervines, the growing threat of species invasion Washington, DC: Island Press.
  • Croser C., Renault S., Franklin J., Zwiazek J. 2001 – The effect of salinity on the emergence and seedling growth of Picea mariana, Picea glauca, and Pinus banksiana – Environ. Pollut. 115: 9–16.
  • D’Antonio C.M., Vitousek P.M. 1992 – Biological invasions by exotic grasses, the grass/fire cycle and global change – Annu. Rev. Ecol. Syst. 23: 63–87.
  • Dodd G.L., Donovan L.A. 1999 – Water potential and ionic effects on germination and seedling growth of two cold desert shrubs – Am. J. Bot. 86: 1146–1153.
  • El Samad H.M.A., Shaddad M.A.K. 1996 – Comparative effect of sodium carbonate,sodium sulphate, and sodium chloride on the growth and related metabolic activities of pea plants – J. Plant Nutr. 19: 717–728.
  • Guan B., Zhou D., Zhang H., Tian Y., Japhet W., Wang P. 2009 – Germination responses of Medicago ruthenica seeds to salinity, alkality, and temperature – J. Arid Environ. 73: 135–138.
  • Khan M.A., Ungar I.A. 1984 – The effect of salinity and temperature on germination of polymorphic seeds and growth of Atriplex triangularis Wild. – Am. J. Bot. 71: 481–489.
  • Kong C.H., Hu F. 2001 – Allelopathic and the application – Beijing: China Agricultural Press, pp. 100–101.
  • Kubien D.S., von Caemmerer S., Furbank R.T., Sage R.F. 2003 – C4 photosynthesis at low temperature: a study using transgenic plants with reduced amounts of rubisco – Plant Physiol. 132: 1577–1585.
  • Lauchli A., Luttge U. 2002 – Salinity in the soil environment (In: Salinity Environment– Plants–Molecules, Ed. K.K. Tanji) – Boston: Kluwer Academic Publisher, pp. 21–23.
  • Levin J.M. 2000 – Species diversity and biological invasion: relating local process to community pattern – Sci. 288: 852–854.
  • Li R.L., Shi F.C., Fukuda K. 2010 – Interactive effects of various salt and alkali stresses on growth, organic solutes, and cation accumulation in a halophyte Spartina alterniflora (Poaceae) – Environ. Exp. Bot. 68: 66–74.
  • Liu Y.Y., Wang H., Yu F.M., Li S.J. 2009– Effects of salt stress on Limonium bicolor seed germination – Chin. J. Ecol. 28: 1794 –1800 (in Chinese, English summary).
  • Mack R.N., Simberloff D., Lonsdale W.M., Evans H., Clout M., Bazzaz F.A. 2000 – Biotic invasions: causes, epidemiology, global consequences, and control – Ecol. Appl. 10: 689–710.
  • Powell A.M. 1978 – Systematics of Flavaria (Flaveriinae–Asteraceae) – Ann. Mo. Bot. Gard. 65: 590–636.
  • Promial K., Kumar S. 2000 – Vigna radiate seed germination under salinity – Biol. Plantarum. 43: 423–426.
  • Qu X.X., Huang Z.Y., Baskin J.M., Baskin C.C. 2008 – Effect of temperature, light and salinity on seed germination and radicle growth of the geographically widespread halophyte shrub Halocnemum strobilaceum – Ann. Bot. 101: 293–299.
  • Ren Y.P., Jiang S., Gu S., Wang Y.Z., Zheng S.X. 2008 – Advances in Flaveria bidentis (L.) Kuntze, a new exotic plant – J. Trop. Subtrop. Bot. 16: 390–396 (in Chinese, English summary).
  • Shi D.C., Wang D.L. 2005 – Effects of various salt-alkaline mixed stresses on Aneurolepidium chinense (Trin.) Kitag – Plant Soil. 271: 15–26.
  • Shi R.H. 1992 – Agricultural Soil Analysis 2ed. – Beijing: Agriculture Press, pp. 122–126.
  • Stohlgren T.J. 2002 – Beyond theories of plant invasions: lessons from natural landscapes – Comments Theor. Biol. 7: 355–379.
  • Tobe K., Li X.M., Omasa K. 2004 – Effects of five different salts on seed germination and seedling growth of Haloxylon ammodendron (Chenopodiaceae) – Seed Sci. Res. 14: 345–35
  • Weber E., Sun S.G., Li B. 2008 – Invasive alien plants in China: diversity and ecological insights – Biol. Invasions, 10: 1411–1429.
  • Williamson M.H. 1996 – Biological invasions – Chapman and Hall, London. Yang Y.L. 2005 – Studies on the technology models and effects for ecological reconstruction in the coast area with heave soil salinity – take Tianjin coast as an example – China Agricultural University. Beijing, pp. 14–22 (in Chinese, English summary).
  • Yuan Z.N., Shi F.C. 2009 – Ecological adaptation strategies in alien species: effects of salinity, temperature and photoperiod on Spartina alterniflora Loisel. seed germination – Pol. J. Ecol. 57: 677–684.
  • Zhang F.J., Li J.Q, Xu X.Y., Guo A.Y., Hu J.R., Du S.X., Wan F.H. 2009 – Influence of environmental factors on seed germination of Flaveria bidentis (L.) Kuntze – Acta. Eco. Sin. 29: 1947–1953 (in Chinese, English summary).

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