Influence of cercospora on yield and root quality of sugar beet varieties in 2014

Abstract

Cercospora leaf spot is the most important disease of sugar beet in Serbia. In 2014 an extremely favourable climate conditions have caused to come to a strong infection with the pathogen causing regrowth of new leaves. In such conditions, expression of different levels of resistance of sugar beet varieties was evaluated. The aim of this study was to determine the correlation between the level of resistance to cercospora and yield and root quality of sugar beet varieties. The results showed a high correlation of resistance to cercospora and sugar content, while between resistance to cercospora and root yield there was no correlation. On the basis of this study we can conclude that in the agroecological conditions of Serbia, preference should be given to sugar beet varieties more tolerant to the fungus Cercospora beticola Sacc.

Cerkospora predstavlja ekonomski najznačajnije oboljenje lista šećerne repe u Srbiji. U 2014. godini izuzetno povoljne klimatske prilike uslovile su da dođe do jake infekcije ovim patogenom izazivajući retrovegetaciju šećerne repe. U takvim uslovima došlo je do ispoljavanja različitog nivoa otpornosti sorata šećerne repe. Cilj istraživanja je bio da se utvrde korelacije između nivoa otpornosti prema cerkospori i prinosa i kvaliteta korena sorata šećerne repe. Rezultati su pokazali visoku povezanost otpornosti prema cerkospori i sadržaja šećera, dok između otpornosti prema cerkospori i prinosa korena nisu utvrđene korelacije. Na osnovu ovih rezultata možemo zaključiti da u agroekološkim uslovima koji su vladali u Srbiji prošle godine, prednost imaju sorte šećerne repe visokog stepena otpornosti prema gljivi Cercospora beticola Sacc.