The influence of lead acetate and actinomycetes on germination and growth of vetch plant (Vicia sativa L.)

The influence of different lead acetate concentrations (10⁻⁵ M, 10⁻⁴ M, 10⁻³ M, 10⁻² M and 2 x 10⁻² M) both with and without presence of actinomycetes on germination and initial growth (root, leaf length and stem height) of vetch plant (Vicia sativa L.) was rated. Different lead acetate concentrations and actinomycetes (Streptomyces sp.) of 5, 7 and 9 breed's types were used totreat vetch plant seeds. It was perceived that high lead acetate concentration of 2 x 10⁻² Mhas inhibitory effect on the studied parameters. Probes with the highest concentrations of lead with the presence of actinomycetes as much as 60% more seeds germinated compared to the probes without actinomycetes. Low lead acetate concentrations have stimulating effect on these processes, as applied in the presence of microorganisms, and in probes without inoculation.