Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

Copyright © Wydawnictwo Akademii Rolniczej we Wroclawiu, ISSN 1505-0297

Breza-Boruta B. , Paluszak Z. 2003. CHANGES IN POPULATION OF SELECTED BACTERIA IN THE RHIZOSPHERE OF POTATO UNDER DIFFERENT FARMING SYSTEMS, EJPAU 6(2), #05.
Available Online: http://www.ejpau.media.pl/volume6/issue2/agronomy/abs-05.html

ABSTRACT

The research was carried out on farms of the Bory Tucholskie Landscape Park near Tuchola. The aim of the research was to define the quantitative content of bacteria of Pseudomonas (the fluorescent subgroup), Arthrobacter, Azotobacter and the coryneform group in the rhizosphere of potato in different stages of its development. The “Aster” potato was grown in two farming systems: ecological and conventional. Microbiological analysis indicated that the bacteria of the coryneform group were the most numerous, and the next was Arthrobacter spp. More of investigated bacteria were isolated from the rhizosphere of potatoes grown in ecological farming system than in the conventional one. From the results obtained during three year’s study it is evident that the number of potentially antagonistic bacteria increased with the development of vegetation and was the highest in root zone area of the plants in harvest-mature tubers.

Key words: rhizosphere, non-rhizosphere soil, antagonistic bacteria, potato, farming system.

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