ISSN 2285-5785, ISSN CD-ROM 2285-5793, ISSN ONLINE 2285-5807, ISSN-L 2285-5785


Published in Scientific Papers. Series A. Agonomy., Vol. LVI
Written by Olga POSTOLACHI, Svetlana BURŢEVA, Cristina BALŢAT, Tatiana BARBAC, Oleg CHISELIŢA, Serghei MASLOBROD

The influence of metabolites of actinomycetes on some physiological parameters of triticale seeds variety (roots formation, growth of coleoptiles) has been studied. The strains of actinomycetes genus Streptomyces were isolated from various soil samples of R. Moldova with different content of humus. The obtained data showed that the number of roots increased considerably under the influence of metabolites of Streptomyces sp.42 (22.11%, compared with the control – water). The increasing by 36.25, 19.9 and 22.9% of the roots length compared to control was determined after the treatment with metabolites of Streptomyces sp.7, Streptomyces sp. 9 and Streptomyces sp.42 strains. The wet weight of the roots and coleoptiles exceeded 2-3 times and on 11.22-37.76% respectively the control values. Our research showed that the investigated Streptomyces strains are capable to synthesize the substances which stimulate roots forming and development of stems. In summary, the isolated from Moldavian soils strains of streptomycetes can be considered as potential producers of plant growth regulators.

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