The effect of plant growth promoting rhizobacteria on Datura stramonium L., Abutilon theophrasti Med., Onopordon acanthium L. and Verbascum thapsus L. seed germination

Abstract

The effects of several bacterial media [Bacillus licheniformis population 1 (MO1); B. licheniformis population 2 (MO2); B. subtilis (MO3); B. megatherium (MO4); humates (MO5)] on seed germination of Datura stramonium L., Abutilon theophrasti Med., Onopordon acanthium L. and Verbascum thapsus L. were tested. Seeds were germinated in Petri dishes containing solutions with different bacterial media. The highest germination percentage in all treatments was recorded for V. thapsus seeds (100.0%). Different treatments had diverse effects (stimulative or inhibitory) on seed germination of D. stramonium [from 5% (MO1) to 13.3% (MO3), with 10.0 % in H20], A. theophrasti [from 28.3% (MO3) to 65.0% (MO5), with 43.3 % in H20] and O. acanthium [from 10.0% (MO2) to 13.3% (MO1 and MO3), with 6.7% in H20], depending on the type of media and weed species.

Testiran je efekat bakterijskih kultura [Bacillus licheniformis populacija 1 (MO1); B. licheniformis populacija 2 (MO2); B. subtilis (MO3); B. megatherium (MO4); humati (MO5)] na klijanje semena Datura stramonium L., Abutilon theophrasti Med., Onopordon acanthium L. i Verbascum thapsus L. Semena su naklijavana u Petri posudama u rastvorima različitih bakterijskih kultura. Najveća klijavost zabeležena je kod semena V. thapsus (100%). Različiti tretmani pokazali su različiti uticaj (stimulativni ili inhibitorni) na klijanje semena D. stramonium [od 5,0% (MO1) do 13,3% (MO3), u H20 10,0%], A. theophrasti [od 28,3% (MO3) do 65,0% (MO5), u H20 43,3%] i O. acanthium [od 10,0% (MO2) do 13,3% (MO1 i MO3), u H20 6,7], u zavisnosti od tipa kulture i vrste korova.