Actiunea exometabolitilor de micromicete asupra productivitatii plantelor agricole

Sirbu, T., Academia de Stiinte a Moldovei, Chisinau . Inst. de Microbiologie si Biotehnologie; Maslobrod, S.; Burteva, S.

The influence of exometabolites from micromycetes on the productivity of agricultural crops | Actiunea exometabolitilor de micromicete asupra productivitatii plantelor agricole

2013

Sirbu, T., Academia de Stiinte a Moldovei, Chisinau (Republic of Moldova). Inst. de Microbiologie si Biotehnologie | Maslobrod, S. | Burteva, S.

The aim of the research was to study the influence of exometabolites of the fungus Penicillium sp. 65 on triticale plants (Ingen 93 variety, developed and homologated at the Institute of Genetics and Plant Physiology of the Academy of Sciences of Moldova). Field experiments were conducted with 1 control and 3 experimental variants, each variant having an area of 3 square m, sown with 500 triticale seeds (5 rows and 100 seeds per row). Before sowing the seeds were treated with exometabolite solutions in the following concentrations: 1:100; 1:300; 1:500. During harvesting 20 plants per variant were sampled and the following indices were determined: plant height, number of grain yielding spikes per plant, length of the main spike and obtained yield compared to the control variant. Experimental data showed the stimulatory effect of the exometabolites of the fungus Penicillium sp. 65 on triticale plants. An increase in the average length of the roots by 42.3% and their gross weight by 32.9%, as compared with the control variant, was recorded. To a lesser extent the exometabolites stimulate the increase of length and gross weight of seedlings (12.7% and 37.5% respectively). The number of grain yielding spikes per plant increased by 55.2% and the yield by 32% in the variant where seeds were treated with exometabolite solution in concentration of 1:500.

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