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Effect of gibrel, a potassium salt of gibberellic acid, on microbial activities in soil

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Summary

From respiration studies with a neutral sandy loam soil, it appears that Gibrel can speed up decomposition of native and added organic matter. The results with Gibrel treatments alone indicate the gibberellic molecule may be rapidly decomposed by soil microbes. Evidence is presented to show that this moiety stimulates nitrogen fixation byAzotobacter in the soil. The critical range for these effects of Gibrel appeared to be 5 to 50 ppm. These results were obtained with a single soil type. It remains to be investigated if similar indications would occur with other soil types where some factors of microbial environment may be quite different.

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References

  1. Bollen, W. B., Soil respiration studies on the decomposition of native organic matter. Iowa State Coll. J. Sci.15, 353–374 (1941).

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  2. Brian, P. W., Elson, G. W., Hemming, H. G. and Radley, Margaret, The plant-growth-promoting properties of gibberellic acid, a metabolic product of the fungusGibberella fujikuroi. J. Sci. Food Agr.5, 602–612 (1954).

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  3. Lu, K. C., Gilmour, C. M., Zagallo, A. C. and Bollen, W. B., Preliminary investigation of gibberellic acid effects on soil microorganisms. Nature (London)181, 189–190 (1958).

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  4. Marth, P. C., Audia, W. V. and Mitchell, J. W., Effects of gibberellic acid on growth and development of plants of various genera and species. Botan. Gaz.118, 106–111 (1956).

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  5. Martin, W. P., Distribution and activity ofAzotobacter in the range and cultivated soils of Arizona. Arizona Agr. Expt. Sta. Tech. Bull.83 (1940).

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Authors and Affiliations

  1. Department of Bacteriology, Oregon Agricultural Experiment Station, Corvallis

    K. C. Lu & W. B. Bollen

Authors
  1. K. C. Lu
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  2. W. B. Bollen
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Additional information

Technical Paper No. 1070. Oregon Agricultural Experiment Station, Corvallis.

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Lu, K.C., Bollen, W.B. Effect of gibrel, a potassium salt of gibberellic acid, on microbial activities in soil. Plant Soil 9, 318–324 (1958). https://doi.org/10.1007/BF01343829

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  • DOI: https://doi.org/10.1007/BF01343829

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