Abstract
After inoculation of wheat seeds with various bacterial strains germination of plants was usually inhibited at first but growth was stimulated later. After inoculation withPseudomonas putida K 11 producing physiologically active compounds the total number of bacteria increased together with the bacteria: fungi ratio in the rhizosphere. These characteristic were further increased after foliar application of urea due to increased root exudation. Dry mass of upper wheat parts was about 15 — 80 % higher in green-house experiments, in which the plants were treated in the two above ways. More reliable results, were usually obtained by bacterization ofP. putida and foliar application of urea as compared with the situation when the seeds were inoculated without the foliar application or, on the contrary, after foliar application without inoculation of the seeds. Only when urea was applied early and in a soil contaminated with the fungusGaeumannomyces graminis var.tritici (causing “take-all” of the wheat) no favourable results could be detected. In these cases the foliar application without inoculation of the seeds was more successful. Symptoms of the disease of wheat roots caused byG. graminis were less frequently observed after the inoculation of the seeds with the strainP. putida K 11 and after the foliar application of urea.
Similar content being viewed by others
References
Barclay C.A., Crosse J.E.: Population of aerobic bacteria associated with the roots of apple and cherry plant.J.Appl.Bact. 37, 475 (1974).
Bbdnářová M., Staněk M., Vančura V., Veselý D.: Microorganisms in the rhizoaphere of wheat colonized by the fungusGaeumannomyces graminis var.tritici. Folia Microbiol. 24, 256 (1979).
Cook R.J., Rovira A.D.: The role of bacteria in the biological control ofGaeumannomyces graminis by suppressive soil.Soil Biol.Biochem. 8, 269 (1976).
Faull J.L.,Campbell R.: Biological control of “take all” disease of wheat: field trials with bacteria antagonistic to Gaeumannomyees graminis.3rd Internat.Congr.Plant Pathol.München 1978; Abstracts of papers 184 (1978).
Hussain A., Vančura V.: Formation of biologically active substances by rhizosphere bacteria and their effect on plant growth.Folia Microbiol. 19, 468 (1970).
Kerr A.: Summary and synthesis of papers on the soil, the plant root, and the rhizosphere, p. 248 inEcology of Soil-borne Plant Pathogens (K.F. Baker, W.C. Snyder, Eds). Univ.Calif.Press, Bercley, Los Angeles 1965.
Macura J.: Interrelations between microorganisms and plants in the rhizosphere, p. 26 inPlant Microbes Relationships (J. Macura, V. Vancura, Eds). Publ.House Czech.Acad.Sci., Prague 1965.
Mishustin E.N., Yemtsev V.T.: Mikrobiologia. Kolos, Moskva 1978.
Rovira A.D.: Plant root exudates and their influence upon soil microorganisms, p. 170 inEcology of Soilborne Plant Pathogenes (K.F. Baker, W. C. Snyder, Eds.). Univ.Calif.Press, Bercley, Los Angeles 1965.
Seidel D., Wächter V., Mögling R.: Symptomausbildung beiGaeumannomyces graminis var.tritici in Abhängigkeit von der Pflanzenentwicklung. Schaderreger in der industrienlässigen Getreideproduktion. Martm-Luther-Univ. Halle-Wittenberg Wissenseh. Beitr.1978/14, 323 (1978).
Vančura V., Hovadík A.: Composition of root exudates in the course of plant development, p. 21 inPlant Microbes Relationships (J. Macura, V. Vancura, Eds). Publ. House Czech. Acad. Sci., Prague 1965.
Vančura V., Přikryl Z., Kalachová L., Wurst M.: Some quantitative aspects of root exudation. Soil organisms as components of ecosystems.Ecol.Bull. 25, 381 (1977).
Vraný J.: The rhizosphere microflora after foliar application of urea. (In Czech)Rostl.výroba 13, 1277 (1967).
Vraný J.: Reaction of rhizosphere microflora of wheat grown on the soil artificially contaminated withGaeumannomyces graminis (Sacc.) Arx et Olivier to spraying plants with Aminex, Benomyl and urea.Folia Microbiol. 22, 455 (1977).
Vraný J., Vančura V., Macura J.: The effect of foliar application of some readily metabolized substances, growth regulators and antibiotics on rhizosphere microflora.Folia Microbiol. 7, 61 (1962).
van Vuurde J.W.L.,Schippers B.: Bacterial colonization of wheat roots in relation to root infection. 3rdInternat.Congr.Plant Pathology, München 1978; Abstracts of papers 172 (1978).
van Vuurde J.W.L., Tonnyeck A.E.G.: Effect of foliar application of urea on wheat growth in relation to plant age, soil fertility and light intensity.Plant & Soil 50, 473 (1978).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Vraný, J., Vančura, V. & Staněk, M. Control of microorganisms in the rhizosphere of wheat by inoculation of seeds withPseudomonas putida and by foliar application of urea. Folia Microbiol 26, 45–51 (1981). https://doi.org/10.1007/BF02927222
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02927222