Selected Physical Properties of Jointed Goatgrass (Aegilops cylindrica Host.)

Authors

C. M. Hubbard, University of Nebraska-Lincoln
Curtis L. Weller, University of Nebraska-LincolnFollow
David D. Jones, University of Nebraska-LincolnFollow

Date of this Version

1997

Comments

Published in Applied Engineering in Agriculture VOL. 13(6):747-750. Copyright © 1997 American Society of Agricultural Engineers. Used by permission.

Abstract

Selected physical properties of jointed goatgrass samples collected in western Nebraska and eastern Colorado were determined. Measured properties were spikelet dimensions (length 10.8 ± 0.35 mm; width 2.59 ± 0.25 mm), particle density (0.761 ± 0.016 g/m³), bulk density (351 ± 26.9 kg/m³), terminal velocity (301 ± 25.9 m/min), angle of repose (26.3 ± 0.286°), internal coefficient of friction (0.494 ± 0.007), and equilibrium moisture contents at 10% RH (6.56 ± 1.03% w.b.), 30% RH (7.43 ± 1.21% w.b.), 50% RH (9.01 ± 0.67% w.b.), 70% RH (11.89 ± 0.61% w.b.), and 90% RH (20.39 ± 2.38% w.b.). Jointed goatgrass had substantially lower particle density and bulk density values than those reported in the literature for hard red winter wheat.