Abstract
Multiple regression equations have been developed to predict the salinity tolerance of Acacia seeds, expressed as the I50 (the concentration of NaCl required to reduce fi nal germination to 50% of the control value in distilled water). Accurate predictions can be made using one or more chemical and biological seed parameters. In this study relationships were drawn among fi nal germination percentage and rate of germination in distilled water, Ca2+ or K+ contents and their ratios to predicted salinity tolerance (I50) of Acacia species. Simulation of the effects of changing fi nal germination, calcium and potassium suggest the possibility of practical application of these results to modify the salinity tolerance of seeds. The predicted I50 increased with increase fi nal germination percentage. Similarly, the higher the rate of germination was the higher the predicted salt tolerance of Acacia species. The Ca2+ content of seeds was found to be positively correlated with I50. Species with higher Ca2+ contents had a higher I50. This suggests that that I50 might be increased by increasing the Ca2+ contents of seeds by pretreatment with calcium salts.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Cerda A, Pardines J, Botella MA, Martinez V (1995). Effect of potassium on growth, water relations and the inorganic and organic solute contents for two maize cultivars grown under saline conditions. J Plant Nutr 18: 839–851.
Greenway H, Munns R (1980). Mechanism of salt tolerance in non-halophytes. Ann Rev Plant Physiol 31: 149–190.
Idris M, Aslam M (1975). The effect of soaking and drying seeds before planting on the germination and growth of Triticum vulgare under normal and saline conditions. Can J Bot 53: 1328–1332.
Lovato MB, Martins PS, Lemos-Filho JP (1994). Germination in Stylosanthes humilis population in the presence of NaCl. Aust J Bot 42: 717–723.
Middleton MR (1995). Data Analysis Using Microsoft Excel 5.0. Duxbury Press/ Wadsworth Publishing, Belomont, CA.
Rehman S, Harris PJC, Bourne WF, Wilkin J (1996). The effect of sodium chloride on germination and the potassium and calcium contents of Acacia seeds. Seed Sci Technol 25: 45–57.
Rehman S, Harris PJC, Bourne WF (1998a). Effects of presowing treatment with calcium salts, potassium salts or water on germination and salt tolerance of Acacia seeds. J Plant Nutr 21: 277–285.
Rehman S, Harris PJC, Bourne WF (1998b). The effect of hardening on the salinity tolerance of Acacia seeds. Seed Sci Technol 26: 743–754.
Rehman S, Harris PJC, Bourne WF (1999). Effect of ageing on the germination and ion leakage of A. tortilis and A. coriacea seeds in distilled water and sodium chloride. Seed Sci Technol 27: 141–150.
Rehman S, Harris PJC, Bourne WF, Wilkin J (2000). The relationship between ions, vigour and salinity tolerance of Acacia seeds. Plant Soil 220: 229–233.
Ryan BF, Joiner BL (1994). Minitab Handbook. Duxbury Press, Wadsworth Publishing, Belomont, CA.
Simon ED (1974). Phospholipids and plant membrane permeability. New Phytol 73: 377–420.
Ungar IA (1996). Effect of salinity on seed germination, growth and ion accumulation of Atriplex patula (Chenopodiaceae). Am J Bot 83: 604–607.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 Springer Science + Business Media B.V.
About this chapter
Cite this chapter
Rehman, S., Khatoon, A., Iqbal, Z., Jamil, M., Ashraf, M., Harris, P.J.C. (2009). Prediction of Salinity Tolerance Based on Biological and Chemical Properties of Acacia Seeds. In: Ashraf, M., Ozturk, M., Athar, H. (eds) Salinity and Water Stress. Tasks for Vegetation Sciences, vol 44. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-9065-3_2
Download citation
DOI: https://doi.org/10.1007/978-1-4020-9065-3_2
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-9064-6
Online ISBN: 978-1-4020-9065-3
eBook Packages: Biomedical and Life SciencesBiomedical and Life Sciences (R0)