ECOTOXICITY AND PHYTOTOXICITY OF PLANT PROTECTION PRODUCTS TO RHIZOSPHERE FUNGI AND WINTER WHEAT SEEDLINGS

• Main Authors: Anna Daria Stasiulewicz-Paluch, Urszula Wachowska
• Format: Article
• Language: Polish
• Published: Polish Society of Ecological Engineering (PTIE) 2015-11-01
• Series: Inżynieria Ekologiczna
• Subjects: fungicides; plant growth stimulator and regulator; chitosan; soil; Acremonium spp; yeasts
• Online Access: http://www.journalssystem.com/ie/EKOTOKSYCZNOSC-I-FITOTOKSYCZNOSC-SRODKOW-OCHRONY-ROSLIN-WOBEC-GRZYBOW-RYZOSFEROWYCH-I-SIEWEK-PSZENICY-OZIMEJ,60603,0,2.html

Registration of plant protection products involves the analysis of their effects on soil microorganisms. The residues of plant protection products penetrate the soil, but their impact on fungi remains scarcely researched. In this study, the influence of selected plant protection products on the abundance of rhizosphere-dwelling fungi and the growth of winter wheat seedlings was evaluated under greenhouse conditions. The analysed plant protection products had an inhibitory effect on the growth of filamentous fungi in the rhizosphere, whereas yeasts were resistant to those products applied to soil. Tebuconazole exerted the strongest suppressive effect on the growth of filamentous fungi, and propiconazole was characterized by the greatest phytotoxic activity against winter wheat seedlings. Azoxystrobin had the weakest ecotoxic and phytotoxic effects, and its application to soil usually led to a rapid increase in the counts of fungi of the genus <i>Acremonium</i>.