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Your search for keyword(s) "pascopyrum smithii" resulted in 5 record(s).

Title: Defoliation increased above-ground productivity in a semi-arid grassland
Journal: Rangeland Ecology & Management
Authors: M. R. Loeser, T. E. Crews, and T. D. Sisk
Date: 2004
Summary: The effects of defoliation in ungrazed, recently grazed, and long-term grazed high elevation grasslands were determined in this study. A single early season defoliation enhanced above-ground production, however, the increased production was composed mainly of squirreltail (Elymus elymoides). A history of defoliation, for one or several growing seasons before clipping, reduced the compensatory response in above-ground production but plant production was still greater in these plots than in undefoliated plots. These results indicate that grazing can enhance plant producti ...
Agrovoc Control Words: Riparian zones, Rangelands, Wildlife
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Title: Drought and grazing: IV. Blue grama and western wheatgrass
Journal: Journal of Range Management
Authors: E. J. Eneboe, B. F. Sowell, R. K. Heitschmidt, M. G. Karl, and M. R. Haferkamp
Date: 2002
Summary: This study, Eneboe et al. tested the theory that grazing, during or after drought, could reduce the recovery of plant communities from drought by measuring the tiller dynamics and plant growth of two dominant grassland species (western wheatgrass (Pascopyrum smithii) and blue grama (Bouteloua gracilis)) in eastern Montana following an imposed severe drought. Tiller recruitment, and tiller density of blue grama and western wheatgrass plants were not negatively affected, and were sometimes enhanced by drought and/or grazing during, and one year followin ...
Agrovoc Control Words: Riparian zones, Rangelands, Wildlife
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Title: Plant biodiversity on shortgrass steppe after 55 years of zero, light, moderate, or heavy cattle grazing
Journal: Plant Ecology
Authors: R. H. Hart
Date: 2001
Summary: Plant biodiversity and evenness on shortgrass steppe range in Colorado were greater in light and moderately grazed pastures than ungrazed or heavily grazed pastures after 55 years of treatment. While preferred grasses western wheatgrass (Pascopyrum smithii), and needle-and-thread (Stipa comata) were present significantly only in the light and ungrazed pastures (0.8-7.2 % of biomass), plains pricklypear (Opuntia polyacantha) dominated the ungrazed pasture, contributing 43% of biomass. Blue grama (Bouteloua gracilis
Agrovoc Control Words: Riparian zones, Rangelands, Wildlife
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Title: Season-long grazing of seeded cool-season pastures in the Northern Great Plains
Journal: Journal of Range Management
Authors: J. F. Karn, R. E. Ries, and L. Hoffmann
Date: 1999
Summary: Karn et al. compared animal gains, and forage production and utilization at two stocking rates (moderate and heavy) on flat and rolling native grasslands with seeded smooth bromegrass (Bromus inermis), western wheatgrass (Pascopyrum smithii), and crested wheatgrass (Agropyron desertorum) pastures grazed season-long by cattle. On all pasture types, cattle spent more time grazing at the heavy stocking rate compared to the low stocking rate, possibly because of the lower forage production, which also reduced average daily gains at th ...
Agrovoc Control Words: Riparian zones, Rangelands, Wildlife
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Title: Clipping and Japanese brome reduce western wheatgrass standing crop
Journal: Journal of Range Management
Authors: M. R. Haferkamp, R. K. Heitschmidet, and M. G. Karl
Date: 1998
Summary: Haferkamp et al. measured the effects of clipping in May or June on western wheatgrass (Pascopyrum smithii) growth and tiller dynamics in plots with and without competition from annual brome (Bromus sp.) species. Plants that were clipped in May had greater tiller density and July regrowth than plants clipped in June, but they also had lower total standing crop and their per tiller weight was less than plants clipped in June. Due to reduced competition, removing Japanese brome (Bromus japonicus) increased standing crop and tiller ...
Agrovoc Control Words: Riparian zones, Rangelands, Wildlife
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