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2009, vol. 60, br. 4, str. 227-236
Uticaj zemljišnih bakterija na klijanje semena viline kosice (Cuscuta campestris Yunck.) i lucerke
Univerzitet u Beogradu, Poljoprivredni fakultet
Sažetak
Za ispitivanje uticaja zemljišnih mikroorganizama (PGPR- Planth Growth Promoting Rhizobacteria) na klijanje semena lucerke (Medicago sativa L.) i viline kosice (Cuscuta campestris Yunck.), koja najčešće parazitira na ovoj gajenoj leguminozi korišćene su bakterijske kulture: Bacillus licheniformis, B. pumilus, B. amyloliquefaciens, B. megatherium ZP6 i A. chroococcum Ps1. Bakterijske kulture B. licheniformis, B. pumilus i B. amyloliquefaciens su izolovane iz stajnjaka; B. megatherium ZP6 iz rizosfere kukuruza; a A. chroococcum Ps1 iz rizosfere pšenice i čuvane su u frižideru na temperaturi od 4°C do upotrebe. Seme viline kosice prikupljeno je tokom avgusta meseca 2008. godine sa useva lucerke na području Šapca. Svakodnevno u periodu od devet dana rađeno je brojanje proklijalih semena. Svi tretmani su rađeni u četiri ponavljanja i ceo ogled je ponovljen dva puta. Na osnovu dobijenih rezultata i statističke obrade podataka, generalno se može konstatovati da su svi ispitivani tretmani: MO1 - B. licheniformis, MO2 - B. pumilus, MO3 - B. amyloliquefaciens, MO4 - B. megatherium ZP6 i MO5 - A. chroococcum Ps1 imali sličan efekat na klijanje semena viline kosice i lucerke. Bakterijske kulture različitih vrsta roda Bacillus su ispoljile različit inhibitorni efekat na klijanje semena viline kosice, dok su uglavnom potpuno (100%) inhibirali klijanje semena lucerke. Suprotno tome, bakterijska kultura sa A. chroococcum Ps1 je stimulativno delovala na klijanje semena obe vrste.
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O članku

jezik rada: srpski
vrsta rada: naučni članak
objavljen u SCIndeksu: 13.04.2010.