engleski

Influence of bacterium Pseudomonas fluorescens on the pathogen of root rot Rhizoctonia solani, storage period and elements of sugarbeet yield and quality

The influence of sugar beet seed inoculation with the bacterium Pseudomonas fluorescens and treatment with the fungicide Thiram– 42– S with and without seed inoculation aiming to control the root decay agents Rhizoctonia solani was studied during a 2 – year trial on two soil types (Mollic Gleysols and Eutric Cambisols). The influence of the treatments on parameters of sugar beet yield and quality such as root yield, sugar content, sugar in molasses, sugar yield as well as percentage of the infected and decayed plants as a consequence of parasitic fungi infestation will be described. Values of investigation parameters depended on soil types, hybrids (tolerant and sensitive) and investigation years. The highest average of investigated parameters in both investigation years were obtained on Mollic Gleysols in the variant of the seed inoculated with Pseudomonas fluorescens bacterium (variant 2). On Eutric Cambisols the highest average of these parameters were obtained in the variant of the seed treated with fungicide Thiram 42 – S (200 ml/100 kg seed) + inoculated with Pseudomonas fluorescens bacterium (variant 3).

sugar beet ; root decay ; R. solani ; P. fluorescens ; storing period ; yield ; quality

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