Growth and yield of potato plants inoculated with rhizosphere bacteria |
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Authors: | J. Vraný A. Fiker |
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Affiliation: | (1) Institute of Microbiology, Czechoslovak Academy of Sciences, 142 20 Prague 4;(2) Central Agricultural Control and Testing Institute, station Filipov, 286 01 Čáslav, Czechoslovakia |
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Abstract: | Pot and field experiments on small plots were carried out to study the effect of isolates ofPseudomonas fluorescens-putida bacteria, applied to potato tubers, on the growth response of potato plants. Inoculation of tuber pieces with the isolates in pot experiments caused a better growth of young potato plant (111 % increase). The effect depended on the viable count in the bacterial suspension and on growth conditions of the plants. Inoculation of potato seed pieces before planting in field experiments caused a 4 –30 % improvement in plant growth and tuber yield. The complex action of inoculation with rhizobacteria apparently caused changes in the microflora colonizing the roots and stolons, which in turn brought about a better growth and yield. |
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