Tropical Grasslands (1988) Volume 22, 5056
EFFECT OF STOCKING RATE ON THE LOCATION OF STORAGE CARBOHYDRATES IN THE STUBBLE OF TROPICAL GRASSES
M.B. ADJEI, P. MISLEVY and R.L. WEST
University of Florida Agricultural Research and Education Center, Ona, Florida 33865 U.S.A.
Yearling steers (240 kg initial liveweight) were rotationally grazed (2 wk grazing, 4 wk rest) at 3 stocking rates (SR) of 7.5 (low), 10 (medium) and 15 (high) head/ha, on 3 stargrasses: 'UF-5' and 'McCaleb' (Cynodon aethioplcus Clayton and Harlan) and 'Ona' Cynodon nlemfuensis Vanderyst var. nlemfuensis); and at the medium SR only on 'Transvala' digitgrass (Digitaria decembens Stent.) and 'Pensacola' bahiagrass (Paspalum notatum Flugge). Grazing commenced in early June 1976 and 1977 and continued for 168 days each year at the University of Florida Agricultural Research and Education Center, Ona, Florida on the sandy siliceous hypermethic family of aeric Haploquods. Total non-structural carbohydrate (TNC) concentration was monitored weekly during summer and autumn in 3 stubble regions; roots/crown (5 cm root + 2.5 cm crown), lower stubble (2.5 cm–10 cm) and upper stubble (> 10 cm).