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Effects of mixed inocula of leptosphaeria nodorum and septoria tritici on wheat seedlings






Transactions of the British Mycological Society 70(1): 41-46

Effects of mixed inocula of leptosphaeria nodorum and septoria tritici on wheat seedlings

Two wheat pathogens L. nodorum Mull. and S. triciti Rob. et Desm. were inoculated either singly or together as a spore suspension of varying proportions of each onto 3 wheat cultivars [Summit, Pinnacle and Teal] at the seedling stage. L. nodorum was the more pernicious causing significantly greater leaf damage than did S. tritici. Both pathogens significantly reduced tillering except in the 'Pinnacle' S. tritici combination. L. nodorum was the most efficient leaf colonizer, but S. triciti was more efficient sporulator with regard to the ratio of spores of both pathogens harvested from diseased leaves. Adaptations of S. tritici in response to competition by L. nodorum is discussed in terms of disease spread and inoculum production.

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Accession: 005314599

DOI: 10.1016/s0007-1536(78)80168-5



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