REACTIONS OF LENTIL ACCESSIONS FROM 25 DIFFERENT COUNTRIES TO AUSTRALIAN ISOLATES OF ASCOCHYTA-LENTIS

488 lentil (Lens culinaris) accessions from 25 different countries wer e evaluated in glasshouse tests for resistance to three Australian iso lates of Ascochyta lentis. Disease symptoms on the different accession s ranged from small flecks (resistant) to extensive lesions on both le aves and stems with death of some plants (highly susceptible). No acce ssion was found with complete resistance to ascochyta blight. The 488 accessions showed differential resistance to all three isolates of A. lentis and could be divided into five resistance groups. 26 accessions originating from Greece (I), Pakistan (23) and Turkey (2) were resist ant to all three isolates, while 142 accessions showed variable reacti ons and 320 accessions were susceptible to all three isolates. These r esults demonstrate there is considerable variation in lentil germ plas m for resistance to A. lentis.