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Plant and Soil

, Volume 135, Issue 1, pp 121–124 | Cite as

Growth promoting effect of Azospirillum brasilense on Casuarina cunninghamiana Miq. seedlings

  • C. Rodríguez-Barrueco
  • E. Cervantes
  • N. S. Subbarao
  • E. Rodríguez-Caceres
Article

Abstract

The growth of Casuarina cunninghamiana seedlings was stimulated when inoculated with Azospirillum brasilense. This resulted in a higher biomass production than in uninoculated controls in the presence or absence of a non-nodulating strain of Frankia.

Increase in whole plant dry weight was due to a significant increase in both shoot and root biomass, which corresponded with a higher total N content of the plants inoculated with Azospirillum. No such effects were observed under inoculation with a non-nodulating Frankia strain. These results suggest that the growth-promoting substances provided by A. brasilense may have enhanced the growth of Casuarina seedlings.

Key words

associative effects Azospirillum Casuarina Frankia 

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Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • C. Rodríguez-Barrueco
    • 1
  • E. Cervantes
    • 1
  • N. S. Subbarao
    • 1
  • E. Rodríguez-Caceres
    • 2
  1. 1.Instituto de Recursos Naturales y AgrobiologiaC.S.I.C.SalamancaSpain
  2. 2.Departamento de MicrobiologiaI.N.T.A.Buenos AiresArgentina

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