A new tall fescue-novel endophyte combination for the south-central USA
DOI:
https://doi.org/10.33584/rps.13.2006.3072Abstract
Tall fescue use has been limited in the south central USA because of insufficient persistence of endophyte free cultivars and poor animal performance from tall fescue infected with wild-type endophyte. Here we report on the development of a tall fescue - novel endophyte combination with improved adaptation to the south central USA. A tall fescue ecotype from Oklahoma was infected with several novel endophytes. Small plot trials were conducted in Oklahoma and Texas to evaluate grazing tolerance, forage yield, and animal safety. One of the ecotypenovel endophyte combinations (AGRFA 144) had greater persistence and forage yield than Jesup MaxQ® in a number of environments. Lamb weight gains from the new tall fescuenovel endophyte combination were comparable to that of Jesup MaxQ and substantially greater than KY-31 infected with a toxic endophyte. Cultivar release of the new tall fescue-novel endophyte combination in 2008 is anticipated. Keywords: novel endophyte, tall fescue, cultivar
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