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Canopy Height Effects on Vaseygrass and Bermudagrass Spread in Limpograss Pastures

Agron. Dep., P.O. Box 110300, Univ. of Florida, Gainesville, FL 32611-0300

View larger version (17K): [in a new window]   Fig. 1. Transect layout and placement of quadrats on each pasture to monitor changes in plant density and frequency.

View larger version (23K): [in a new window]   Fig. 2. Effect of canopy height treatment on change in plant density of vaseygrass in limpograss pastures after 2 yr of grazing (experimental period; linear, P = 0.09; SE = 1.5) and following a subsequent 10-mo rest from grazing (recovery period; linear, P = 0.05; SE = 0.7).

View larger version (31K): [in a new window]   Fig. 3. Effect of canopy height on changes in frequency of occurrence of vaseygrass (quadratic, P = 0.08; SE = 0.1) and bermudagrass (not significant; quadratic, P = 0.21; SE = 0.1) over a 2-yr period.

View larger version (24K): [in a new window]   Fig. 4. Effect of canopy height on changes in ground cover of vaseygrass (linear, P = 0.04; quadratic, P = 0.01; SE = 2.2), limpograss (not significant, P > 0.33; SE = 6.2), and bermudagrass (linear, P = 0.08; quadratic, P = 0.03; SE = 1.3) over a 2-yr period.