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Centipedegrass—Diversity and Vulnerability

USDA-ARS, Univ. of Georgia Coastal Plain Exp. Stn, Tifton, GA 31793-0748

^* Corresponding author (forage{at}tifton.cpes.peachnet.edu)

The genus Eremochloa consists of eight species of which only centipedegrass [E. ophiuroides (Munro) Hack.] is cultivated for turf. In the USA, the genetic base for this species is narrow because most of the Centipedegrass grown originates from a single accession introduced as seed from China as a result of a plant exploration trip by Frank Meyer in 1916. Introduction of Centipedegrass from the area of origin, central to southern China, has been limited and sporadic. Morphological variation has been increased in this species by irradiating seed with gamma radiation and by developing a random mating population among 31 foreign introductions and 24 domestic selections. A systematic germplasm collecting expedition in the area of origin is needed for this species.

Received for publication March 4, 1994.