Occurrence and significance of Pyrenophora tritici - repentis in Serbia

Abstract

The occurence, significance and incidence of P.tritici-repentis and disease symptoms in Serbia from 1993 to 1997 have been discussed in this paper for the first time. In 1993, in our country, this species was determined for the first time in the locality of Nikinci, and later in the following localities Rimski Šančevi, Užice, Žednik, Đurđin, Tavankut, Bajmok, Ečka, Erdevik Vajska and Sombor.

Parazit P. tritici - repentis je prvi put utvrđen 1993. godine na uzorcima slame koji potiču iz lokaliteta Nikinci, a tokom proleća na samoniklim biljkama i novoposejanim usevima sorti evropa i francuska. U ostalim lokalitetima Srbije, uzorci su prikupljeni sa različitih sorti i linija pšenice. Prosečne dužine i širine pseudoperitecija su bile 609,0μm x 344,5μm, askusa 239,0μm x 46,5μm, askospora 50,5μm x 21,0μm, a konidija 113,5 x 18,5μm.