The objective of this research was to define the relationship between endophyte (Acremonium coenophialum) infestation level of tall fescue (Festuca arundinacea) seed lots and a seedling disease caused by Rhizoctonia zeae. Seeds were planted in soilless medium or medium amended with R. zeae cultures, and number of seedlings per three 5.0-cm cores was determined. In a preliminary experiment, percentage of loss (61%) was greater for Forager (a low-endophyte cultivar) than for a Kentucky 31 seed lot with an 85% endophyte infestation level (32%) (.)
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Katrina Gwinn (1992) studied this question.