Pathogen diversity in a Moroccan population of Pyrenophora teres f. teres

This study was conducted to investigate the virulence variability among Moroccan isolates of Pyrenophora teres f. teres , commonly known as the net form net blotch, of barley. Infection responses of 109 single spore isolates of P. teres f. teres collected in 2016 were assessed for their interaction with 12 barley genotypes after inoculation at the seedling stage under controlled conditions. One week following inoculation, each plant’s second and third leaves were rated for disease severity on a numerical reaction scale of 1–10. Plants rated