Pathotype diversity among Algerian isolates of Pyrenophora teres f. teres
Barley Net Blotch caused by Pyrenophora teres f.teres (Ptt) is one of the most important foliar diseases in north western Algeria.The disease could cause appreciable yield losses under favorable environmental Emergency LED Batten conditions.Studies on pathogen variability and distribution of virulence in Ptt are essential to identify effective sour