Evaluation of 32 alfalfa (Medicago sativa L.) cultivars for susceptibility to leaf spot diseases, in Lavras, Minas Gerais, Brazil

Souza, P.E. de; Castro, H.A. de; Evangelista, A.R.; Morais, A.R. de

Ciencia e Agrotecnologia 22(4): 419-428


ISSN/ISBN: 1413-7054
Accession: 003130671

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Susceptibility of 32 lucerne cultivars to leaf spot diseases was evaluated under conditions of natural infection. Cultivar Alfagrase was most resistant and the most susceptible was the Triesdouver-luzerne cultivar. The most common leaf spot diseases were summer black stem and leaf spot (Cercospora medicaginis), rust (Uromyces striatus) and Leptosphaerulina leaf spot (Leptophaerulin briosiana [L. trifolii]).