Fig. 3 Early (<1000 GDD, solid bars), late (>1000 GDD, open bars), and total (solid and open bars combined) digestible dry matter (DDM) production in the spring of 1992 for small grain cultivars (A) interseeded into bermudagrass sod or (B) seeded in monoculture. Bars containing or followed by the same letter are not significantly different (P < 0.05) according to Duncan's test. Root mean square errors for early, late, and total production, respectively, were 35, 149, and 166 for interseed and 251, 249, and 221 for monoculture
