Fungi of the genus Fusarium on the soybean seed

Abstract

The isolation of fungi of the genus Fusarium was done using seeds of the four most commonly grown soybean varieties in the Vojvodina Province: Afrodita, Ravnica, Balkan and Vojvođanka. The analysis of morphological and growth properties confirmed that the isolates belonged to the following species: Fusarium graminearum, F. semitectum, F. equiseti, F. sporotrichioides, F. acuminatum and F. proliferatum. Pathogenicity of the fungi of the genus Fusarium was tested on the sterile filter paper in the laboratory and the sterile substrate in the glasshouse. All isolates on the filter paper decreased germination and the germ length in the inoculated seeds, and they also caused seed necrosis at a very high percentage. In the greenhouse, all isolates caused greater or lesser deterioration of soybean seedlings and the occurrence of rotten seeds.

Gljive roda Fusarium izolovane su iz semena četiri sorte soje: Afrodita, Ravnica, Balkan i Vojvođanka. Determinacija je izvršena na bazi morfoloških i odgajivačkih karakteristika pri čemu je utvrđeno da izolati pripadaju sledećim vrstama: F. graminearum, F. semitectum, F. equiseti, F. sporotrichioides, F. acuminatum i F. proliferatum. Provera patogenosti ovih gljiva je ispitana na sterilnom filter papiru u laboratoriji i u sterilnom supstratu u staklari. Na osnovu rezultata inokulacionih ogleda utvrđeno je da su svi izolati u manjoj ili većoj meri ispoljili patogenost prouzrokujući trulež semena, nekrozu klice i propadanje ponika ili zaostajanje biljaka u porastu.