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Incidence and Control of Iron Deficiency Chlorosis in Fruit trees in Iran

Published online by Cambridge University Press:  03 October 2008

E. W. Bolle-Jones ,
F. Sanei  and
A. Pahlavani
E. W. Bolle-Jones
Affiliation:
Soil Institute of Iran, Teheran
F. Sanei
Affiliation:
Soil Institute of Iran, Teheran
A. Pahlavani
Affiliation:
Soil Institute of Iran, Teheran
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Summary

Soil analysis on samples taken from apple orchards in Khorasan and quince orchards in Esfahan, suggested that at a sampling depth of 20–45 cm., the critical soil concentration of calcium carbonate at which chlorosis might appear seems to be 14–15 per cent for apple and 39–40 per cent for quince. The incidence of lime-induced chlorosis was accompanied by lowered leaf Ca/K ratios. The application of various iron chelates to chlorotic trees not only benefited yield of apples but also exercised a residual effect in succeeding seasons.

Type
Research Article
Information
Experimental Agriculture , Volume 9 , Issue 3 , July 1973 , pp. 241 - 247
Copyright
Copyright © Cambridge University Press 1973

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References

REFERENCES

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Fisher, R. A. & Yates, F. (1967). Statistical Tables for Biological, Agricultural and Medical Research, 6th Edition, pp. 74–75. Edinburgh: Oliver & Boyd.Google Scholar
Wallace, T. & Hewitt, E. J. (1946). J. Pomol & Hort. Sci. 22, 153.Google Scholar