Mycopopulation of sunflower grain

Kontrola zdravstvenog stanja zrna i sjemena iznimno je važna zbog moguće pojave novih agresivnijih izolata već prisutnih uzročnika bolesti, pojave novih vrsta patogena, povećanja sjetvenih površina i introdukcije stranih sorta u pokusne i proizvodne svrhe. Tijekom četiri godine (2006., 2007., 2008., 2010.) praćena je pojava mikopopulacije zrna suncokreta iz pokusa posijanog na površinama PIK Vinkovci - Sopot. U pokusu je bilo posijano 15 hibrida 2006. godine, 17 hibrida 2007. godine, 20 hibrida 2008. godine te 14 hibrida 2010. godine. U svim godinama istraživanja i na svim hibridima najčešće su utvrđene gljive iz roda Alternaria (70,83%, 46,16%, 22,86%, 74,96%). Pojava parazitnih gljiva (Diaporthe helianthi, Fusarium spp., Sclerotinia sclerotiorum, Botrytis cinerea, Verticillium sp.) u svim je godinama bila sporadična do slaba.The control of health condition of grains and seeds is extremely important due to possible appearance of new, more aggressive isolates of already present plant pathogens, the appearance of new plant pathogens, the increase in the number of agricultural fields and introduction of foreign plant varieties for experimental and production purposes. Over the period of four years (2006, 2007, 2008, 2010) we monitored mycopopulation of sunflower grain originating from the experiment planted on trial fields of PIK Vinkovci – Sopot. The trial included 15 hybrids in 2006, 17 hybrids in 2007, 20 hybrids in 2008 and 14 hybrids in 2010. In all trial years and on all hybrids the most frequently determined fungal species were of Alternaria genus (70.83%, 46.16%, 22.86%, 74.96%). The incidence of parasitic fungi (Diaporthe helianthi, Fusarium spp., Sclerotinia sclerotiorum, Botrytis cinerea, Verticillium sp.) in all trial years was sporadic to weak