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Published online 25 July 2006
Published in Crop Sci 46:1898-1912 (2006)
© 2006 Crop Science Society of America
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Grazing Influences on Mass, Nutritive Value, and Persistence of Stockpiled Jesup Tall Fescue without and with Novel and Wild-Type Fungal Endophytes

J. C. Burnsa,*, D. S. Fisherb and G. E. Rottinghausc

a USDA-ARS and Dep. of Crop Science and Dep. of Animal Science, North Carolina State Univ., Raleigh, NC 27695
b USDA-ARS, Watkinsville, GA 30677
c Veterinary Medical Diagnostic Lab., Univ. of Missouri, Columbia, MO 65211


Figure 1
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  		Fig. 1. (A) Changes in ergovaline concentrations (near-infrared reflectance [NIR] predicted) of grazed (October defoliation only) and stockpiled Jesup with the wild-type endophyte for canopy (SE = 35.6 µg kg–1) and for the leaf (SE = 22.1 µg kg–1), stem (SE = 126.2 µg kg–1), and dead (SE = 10.4 µg kg–1) fractions, and (B) the proportion of the tall fescue mass that is leaf (SE = 6.1%), stem (SE = 2.3%), and dead (SE = 6.9%) tissue (mean of three replicates and 3 yr).

 

Figure 2
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  		Fig. 2. (A) Year differences (Years 2 and 3) in ergovaline concentrations (near-infrared reflectance [NIR] predicted) of the grazed (October defoliation only) and stockpiled Jesup with the wild-type endophyte for the canopy, (B) the associated ergovaline concentrations, and (C) proportions of the tall fescue in leaf, stem, and dead fractions (mean of three replicates).

 




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