Bermudagrass–White Clover–Bluegrass Sward Production and Botanical Dynamics

Cool‐season forages dominate pastures in the Appalachian region where midsummer weather conditions often depress productivity. Warm‐season forages can buffer variation in available herbage, but land resources may limit the area dedicated to special‐use crops. A replicated field plot experiment was conducted for 3 yr (1995–1997) in a bermudagrass (Cynodon dactylon L.) stand oversown with Kentucky bluegrass (Poa pratensis L.) and white clover (Trifolium repens L.) to determine the influence of defoliation on productivity, nutritive value, and botanical dynamics of the mixture. Botanical composition changed with defoliation and varied among years. Bermudagrass comprised as much as 55% of the sward in mid‐ and late‐season 1995. By 1997, the proportion was similar to other grasses and rarely exceeded 20%. Maximum instantaneous growth rates occurred later in the growing season in 1995 when bermudagrass was a dominant sward component compared with subsequent years when bermudagrass was