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2011, vol. 26, br. 1, str. 35-42
In vitro osetljivost vrsta Fusarium graminearum, F. avenaceum i F. verticillioides na karbendazim, tebukonazol, flutriafol, metkonazol i prohloraz
aInstitute for Plant Protection, Croatian Centre for Agriculture, Food and Rural Affairs, Zagreb, Croatia
bUniversity of Zagreb, Faculty of Agriculture, Zagreb, Croatia
cSs. Cyril and Methodius University in Skopje, Faculty of Agricultural Sciences and Food, Skopje, Republic of Macedonia

e-adresadario.ivic@hcphs.hr
Ključne reči: Fusarium; karbendazim; tebukonazol; flutriafol; metkonazol; prohloraz
Sažetak
U istraživanju je ispitan rast 13 izolata Fusarium graminearum, 6 izolata F. avenaceum i 6 izolata F. verticillioides na krompir-dekstroznoj podlozi s dodatkom 0,1, 0,33, 1, 3,3 i 10 mg/l karbendazima, tebukonazola, flutriafola, metkonazola i prohloraza. Za svaki izolat izračunata je srednja efektivna koncentracija (EC50), pri kojoj je prosečni rast izolata bio inhibiran za 50% u odnosu na kontrolu. Prohloraz je bio najučinkovitiji u inhibiciji rasta sve tri vrste, dok je flutirafol pokazao najmanju učinkovitost. Metkonazol je pokazao višu učinkovitost u poređenju s karbendazimom i tebukonazolom. EC50 vrednosti svih izolata na prohlorazu bile su manje od 0,1 mg/l, dok su na flutriafolu varirale između 1,66 i 8,51 mg/l za 18 izolata, ili bile veće od 10 mg/l za sedam izolata. EC50 vrednosti na karbendazimu bile su 0,39-1,41 mg/l za izolate F. graminearum, 0,91-1,35 mg/l za F. avenaceum, te 0,47-0,6 mg/l za F. verticillioides. Na tebukonazolu EC50 vrednosti bile su 0,85-2,57 mg/l za F. graminearum, 0,85-1,58 mg/l za F. avenaceum i 0,22-0,85 mg/l za F. verticillioides, dok su na metokonazolu utvrđene EC50 vrednosti između manjih od 0,1 do 1,66, 0,56 i 0,17 mg/l za F. graminearum, F. avenaceum i F. verticillioides. Prosečne inhibicije rasta različitih Fusarium vrsta i svih Fusarium izolata ukupno na različitim koncentracijama različitih fungicida značajno su se razlikovale. Nisu utvrđene značajne razlike u rastu između izolata unutar pojedinih Fusarium vrsta na niti jednom od ispitanih fungicida, što pokazuje da ne postoji smanjena osetljivost na fungicide kod izolata uključenih u istraživanje.
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O članku

jezik rada: engleski
vrsta rada: naučni članak
DOI: 10.2298/PIF1101035I
objavljen u SCIndeksu: 15.06.2011.
metod recenzije: dvostruko anoniman

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