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Interspecies Variation of Forage Nutritive Value and Nonstructural Carbohydrates in Perennial Cool-Season Grasses

^a Univ. of Florida, IFAS-NFREC, 155 Research Rd., Quincy, FL 32351
^b USDA-ARS, Grazinglands Res. Lab., 7207 W. Cheyenne St., El Reno, OK 73036

View larger version (48K): [in this window] [in a new window]   Fig. 1. Variation of nonstructural carbohydrate concentrations among 13 entries of perennial cool-season grasses at the preheading stage. Grass entries from 1 to 13 are ‘Carmine’, ‘Dovey’, ‘Kentucky 31’, and ‘Maximize’ tall fescue; ‘Felina’ and ‘Hykor’ festulolium; ‘Lincoln’, ‘Lincoln YD’, ‘NE B1-2-C0’, and ‘NE B1-4-C2’ smooth bromegrass; ‘Jose’ tall wheatgrass; and ‘Luna’ and ‘Manska’ intermediate wheatgrass, respectively.

View larger version (19K): [in this window] [in a new window]   Fig. 2. Cluster analysis similarity of 13 perennial cool-season grass entries from tall fescue (‘Kentucky 31’, ‘Maximize’, ‘Dovey’, and ‘Carmine’); festulolium (‘Hykor’ and ‘Felina’); tall wheatgrass (‘Jose’); intermediate wheatgrass (‘Manska’ and ‘Luna’); and smooth bromegrass (‘Lincoln’, ‘Lincoln YD’, ‘NE B1-2-C0’, and ‘NE B1-4-C2’) in nonstructural carbohydrate concentrations at the preheading stage.

View larger version (28K): [in this window] [in a new window]   Fig. 3. Forage crude protein (CP), neutral detergent fiber (NDF), and acid detergent fiber (ADF) concentrations of perennial cool-season grasses at preheading stage in 2004 and 2005. Grass entries from 1 to 13 are ‘Carmine’, ‘Dovey’, ‘Kentucky 31’, and ‘Maximize’ tall fescue; ‘Felina’ and ‘Hykor’ festulolium; ‘Lincoln’, ‘Lincoln YD’, ‘NE B1-2-C0’, and ‘NE B1-4-C2’ smooth bromegrass; ‘Jose’ tall wheatgrass; and ‘Luna’ and ‘Manska’ intermediate wheatgrass, respectively.