Technical Abstract: Interest is increasing in utilizing less productive agricultural land often associated with periods of limited irrigation, soil salinity, and low fertility as an alternative source of forage to public grazing. In 1999, 28 cloned parents and half-sib families of meadow bromegrass were planted in a randomized complete block design to evaluate genetic variation for dry matter yield (DMY) (harvests 1 to 5), forage quality under repeated defoliation (harvests 1, 3, and 5), and to investigate intercharacter correlations. Narrow-sense heritability estimates and their standard errors for DMY at harvests 2, 3, and 4 were 0.89 plus or minus 0.32, 0.59 plus or minus 0.28, and 0.53 plus or minus 0.29, respectively, However, at harvests 1 and 5, standard errors of the heritability estimates for DMY were equal to or greater than the estimates. All heritability estimates for crude protein (CP) were at least twice their standard errors at harvests 1, 3, and 5. High narrow-sense heritabilities at harvest-5 for acid detergent fiber (ADF) suggest that selection on forage harvested later in the growing season might be more efficient than selection on forage harvested earlier in the season. Combined across years and within harvests, narrow-sense heritability estimates and standard errors for neutral detergent fiber (NDF) were 0.66 plus or minus 0.29, 0.47 plus or minus 0.30, and 0.71 plus or minus 0.28, respectively. Based on correlations, it seems reasonable to assume that selection for increased DMY will increase ADF and NDF and decrease CP and in vitro true digestibility (IVTD) in this population.