Biologia

, Volume 62, Issue 5, pp 562–564 | Cite as

Salinity and salt composition effects on seed germination and root length of four sugar beet cultivars

  • Ali Asghar Jafarzadeh
  • Nasser Aliasgharzad
Article
  • 279 Downloads

Abstract

Salinization is one of the most important factors affecting agricultural land in the world. Salinization occurs naturally in arid and semiarid regions where evaporation is higher than rainfall. Sugar beet yield declines with an increase in salinity, but the sensitivity to salts varies with salt composition in water and sugar beet growth stage. The aim of this study was to determine the effect of water salinity levels and salt composition on germination and seedling root length of four sugar beet cultivars (PP22, IC2, PP36, and 7233). The experiments were undertaken with irrigation water with two salt compositions (NaCl alone and mixture of MgSO4 + NaCl + Na2SO4 + CaCl2) in three replicates. Thirteen salinity levels with electrical conductivity (EC) of the irrigation water ranging from 0 to 30 dS/m were applied to each cultivar in both experiments. Seed germination percentage and seedling root length growth were determined in 13 days. Statistical analysis revealed that germination and root length were significantly affected by salt composition, cultivars and salinity levels. Regardless of salt composition, seed germination and seedling root length were significantly affected by the irrigation water with EC up to 8 dS/m and 4 dS/m, respectively. Except for cultivar PP22, the adverse effect of salinity of the irrigation water on seed germination and seedling root length was higher for NaCl alone than for the salt mixture, which refers to lower salt stress in field conditions with natural salt composition.

Key words

germination root length salinity salt composition sugar beet 

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References

  1. Aliasgharzad N. 2001. The abundance and distribution of arbuscular mycorrhizal fungi in saline soils of the Tabriz Plain and their inoculation effects on the improvement of salt tolerance in onion and barley. Ph.D thesis, University of Tehran, I.R of Iran.Google Scholar
  2. Bonilla I., El-Hamdaoui A. & Bolanos L. 2004. Boron and calcium increase Pisum sativum seed germination and seedling development under salt stress. Plant Soil, 267: 97–107.CrossRefGoogle Scholar
  3. Burger F. & Čelková A. 2001. Soil salinization in Danubian Lowland from the standpoint of crop tolerance to soils. Acta Hydrologica Slovaca 2: 284–293. (in Slovak)Google Scholar
  4. Draycott A.P. 1972. Sugar Beet Nutrition. Applied Science Publishers, London.Google Scholar
  5. El Lateef E.M.A., Hall J.E., Lawrence P.C. & Negm M.S. 2006. Cairo-East Bank effluent re-use study 3 — Effect of field crop irrigation with secondary treated wastewater on biological and chemical properties of soil and groundwater. Biologia 61(Suppl. 19): S240–S245.CrossRefGoogle Scholar
  6. Epstein E. & Rains D.W. 1987. Advances in salt tolerance. Plant Soil 99: 17–29.CrossRefGoogle Scholar
  7. FAO 1994. Land degradation in South Asia. Its severity, cause and effects upon the people. World Soil Resources Reports, No. 78.Google Scholar
  8. Harris F.S. & Pitman D.W. 1918. Soil factors affecting the toxicity of alkali. J. Agr. Res. USA. 15: 287–319.Google Scholar
  9. Harris F.S. & Pitman D.W. 1919. Relative resistance of various crops to alkali. Utah Agr. Expt. Sta. Bul. No.168.Google Scholar
  10. Hillel D. 1998. Environmental Soil Physics. Academic Press, San Diego, 771 pp.Google Scholar
  11. Jafarzadeh A.A. & Aliasgharzad N. 2001. Effect of soil salinity on different onion cultivars germination. In: Proc of 3rd Int. Conference on Land Degradation, Rio de Janeiro, Brazil, S7–046.Google Scholar
  12. Mohammadian R. 1995. Effect of seeds depreciation on germination, growing and settlement of seven sugar beet cultivars under salinity stress. MSc Thesis. Faculty of Agriculture, Tabriz University.Google Scholar
  13. Rhoades J.D., Kandiah A. & Mashali A.M. 1992. The use of saline waters for crop production. FAO irrigation and drainage paper 48. Food and Agriculture Organization of the United Nations, Rome.Google Scholar
  14. Stewart J. 1898. Effect of alkali on seed germination. Utah Agr. Expt. Sta. 9th Annual Report, pp. 26–35.Google Scholar
  15. Volkmar K.M., Hy Y. & Steppuhn H. 1998. Physiological responses of plants to salinity: A review. Can. J. Plant Sci. 78: 19–27.Google Scholar
  16. Wannamaker M.J. & Pike L.M. 1987. Onion responses to various salinity levels. J. Am. Soc. Hort. Sci. 112: 49–52.Google Scholar

Copyright information

© Institute of Botany, Slovak Academy of Sciences 2007

Authors and Affiliations

  • Ali Asghar Jafarzadeh
    • 1
  • Nasser Aliasgharzad
    • 1
  1. 1.Department of Soil Science, Faculty of AgricultureUniversity of TabrizTabrizI.R. of Iran

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