Abstract
SUSCEPTIBILITY of plants to fungi causing root-rot is known to be conditioned by the rhizosphere microflora1,2. Changes in this microflora can result from derangement in plant metabolism caused by either foliar treatment with chemicals3, fungal infection of the roots2 or even systemic infection by plant viruses4. Therefore, it seems possible to stimulate artificially the multiplication of specific micro-organisms in the rhizosphere by selective plant treatment, such as foliar application of nutrients, designed to act directly on the plant without affecting the soil. Work on these lines, apart from a recent report5, has received little attention. Observations on sprayed tea plants reported here support the basic concept of changing the pattern of the rhizosphere microflora by foliar sprays.
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References
- 1
Timonin, M. L., Soil Sci., 52, 395 (1941).
- 2
Katznelson, H., and Richardson, L. T., Sci. Agric., 28, 293 (1948).
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Halleck, F. E., and Cochrane, V. W., Phytopath., 40, 715 (1950).
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Lakshmi-Kumari, M., Mem. Indian Bot. Soc. (in the press).
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Ramachandra-Reddy, T. K., Phytopath. Z., 36, 286 (1959).
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Rovira, A. D., Plant and Soil, 11, 53 (1959).
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Katznelson, H., Rouatt, J. W., and Payne, T. M. B., Nature, 174, 1110 (1954).
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RAM, C. Foliar Application of Nutrients and Rhizosphere Microflora of Camellia sinensis . Nature 187, 621–622 (1960) doi:10.1038/187621a0
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Further reading
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Foliar Spray of Urea and Rhizosphere Microflora of Corn (Zea mays L.)
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