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A simple technique to evaluate the effect of mechanical stress on root growth

Published online by Cambridge University Press:  27 March 2009

M. R. Chaudhary
Affiliation:
Department of Soils, Punjab Agricultural University, Ludhiana, India
G. C. Aggarwal
Affiliation:
Department of Soils, Punjab Agricultural University, Ludhiana, India

Summary

A simple technique to evaluate accurately the effect of mechanical stress on root growth has been developed. The roots are allowed to grow against a predetermined pressure in the chamber of a pressure-plate apparatus. The root growth was studied against the applied pressures of 0, 2, 4, 6, 8 and 10 bar. A relationship of the form Y = aXb was observed between the rate of root elongation (Y) and applied pressure (X).

Type
Research Article
Copyright
Copyright © Cambridge University Press 1984

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References

Barley, K. P. (1962). The effect of mechanical stress on growth of roots. Journal of Experimental Botany 13, 95110.CrossRefGoogle Scholar
Barley, K. P., Farrell, D. A. & Greacen, E. L. (1965). The influence of soil strength on the penetration of a loam by plant roots. Australian Journal of Soil Research 3, 6979.CrossRefGoogle Scholar
Barley, K. P. & Greacen, E. L. (1967). Mechanical resistance as a soil factor influencing the growth of roots and underground shoots. Advances in Agronomy 19, 143.CrossRefGoogle Scholar
Gill, W. R. & Miller, R. D. (1956). A method for study of the influence of mechanical impedance and aeration on the growth of seedling roots. Soil Science Society of America Proceedings 20, 154157.CrossRefGoogle Scholar
Goss, M. J. (1974). Effect of mechanical impedance on root. Ph.D. thesis, University of Reading.Google Scholar
Grable, A. R. (1966). Soil aeration and plant growth. Advances in Agronomy 18, 58106.Google Scholar
Greacen, E. L., Farrell, D. A. & Cockraft, B. (1968). Soil resistance to metal probes and plant roots. Transactions of 9th International Congress of Soil Science, vol. VI, pp. 769779.Google Scholar
Huck, M. G. (1970). Variation in tap root elongation rate as influenced by composition of soil air. Agronomy Journal 62, 815818.CrossRefGoogle Scholar
Kramer, P. J. (1969). Plant and Soil Water Relationships: a Modern Synthesis. New York: McGraw-Hill.Google Scholar
Pfeffer, W. (1893). Druck- und Arbeitsleistung durch Wachsende pflanzen. Abhandlungen der Königlich Sächsischen Gesellschaft (Akademie) der Wissenschaften 20, 233474.Google Scholar
Richards, L. A. (1948). Porous plate apparatus for measuring moisture retention and transmission by soil. Soil Science 66, 105110.CrossRefGoogle Scholar
Taylor, H. M. & Bruce, R. R. (1968). Effect of soil strength on root growth and crop yield in the Southern United States. Transactions of the 9th International Congress of Soil Science, vol. I, pp. 803812.Google Scholar
Taylor, H. M. & Ratliff, L. F. (1969). Root growth pressure of cotton, peas and peanuts. Agronomy Journal 61, 398402.CrossRefGoogle Scholar
Taylor, H. M., Roberson, G. M. & Parker, J. J. Jr, (1966). Soil strength root penetration relations for medium to coarse-textured soil materials. Soil Science 102, 1822.CrossRefGoogle Scholar