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Fifteen introduced and native warm-season perennial grasses were evaluated for yield, yield distribution, and quality in south-central Oklahoma. These grasses have production potential for forage and/or biofuel. Each was harvested one to four times per year. “Alamo” switchgrass (Panicum virgatum) had a two-year average dry matter yield of 17690 kg ha−1. Over 1/3 of this production occurred in May with a crude protein (CP) range of 97–115 g kg−1. Alamo’s high yield potential and early spring growth make it attractive for spring forage production and fall biomass production. Other grasses with two-year average dry matter yields over 11200 kg ha−1 and 1/3 of yearly production occurring early in the growing season that have potential dual purpose use include “Selection 75” kleingrass (Panicum coloratum), “Midland 99” bermudagrass (Cynodon dactylon), johnsongrass (Sorghum halepense), “Carostan” flaccidgrass (Pennisetum flaccidum), and “Ermelo” weeping lovegrass (Eragrostis curvula).

Yield, Yield Distribution, and Forage Quality of Warm-Season Perennial Grasses Grown for Pasture or Biofuel in the Southern Great Plains