Study on some microbial genera associated to different wheat varieties (Triticum aestivum L.) in a Red Ferralitic soil

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Annia Hernández

Abstract

The predominant bacterial genera were studied
in the rhizosphere of four wheat varieties (Triticum aestivum L.)
grown in a Red Ferralitic soil. The chemoattraction of some
rhizobacteria was also evaluated toward root exudates of this
crop. The Espermospher Model was used for the isolation
and collector tubes and the chemotaxis camera modified for
the evaluation of the chemotactic effect of those radical
exudates. Results demonstrated that in Gang and Caete
varieties, Pseudomonas is a dominant population,
Pseudomonas (Burkholderia) cepacia being the most strongly
attracted species by those root exudates at 14 days and 40
minutes of exposure. In Culiacam and Antisama varieties,
Azospirillum is the predominant genus in the rhizosphere, this
species being the most strongly attracted by radical exudates
at 14 days and 60 minutes of exposure. This investigation
allows fertilizer application based on predominant microbial
genera of wheat rhizosphere, strengthening its activity without
altering soil biology.

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How to Cite
Hernández, A. (2013). Study on some microbial genera associated to different wheat varieties (Triticum aestivum L.) in a Red Ferralitic soil. Cultivos Tropicales, 23(2), 15–20. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/655
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Original Article