Your search for keyword(s) "stipa thurberiana" resulted in 3 record(s).

Title: Thurber needlegrass: Seasonal defoliation effects on forage quantity and quality: Journal: Journal of Range Management; Authors: D. Ganskopp; Date: 1998; Summary: At 14-day intervals one of 7 cohorts of Thurber needlegrass (Stipa thurberiana Piper) plants was defoliated to a 2.5-cm stubble to describe initial growth rates, determine defoliation effects on subsequent regrowth accumulations, relate regrowth potential to available soil moisture, and determine the nutritional value of initial growth and regrowth for livestock. Despite substantial differences in precipitation between 1985 and 1986 in southeast Oregon (77% and 111% of long term average), accumulation rates of Thurber needlegrass were approximately equal, and are strongly ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article

Title: Defoliation of Thurber needlegrass: Herbage and root responses: Journal: Journal of Range Management; Authors: D. Ganskopp; Date: 1988; Summary: Ganskopp conducted a study on the Squaw Butte Experimental Range to determine the response of containerized Thurber needlegrass (Stipa thurberiana) to single defoliations (2.5-cm stubble) throughout the growing season. Thurber needlegrass was most effected by defoliation during the early-boot stage of development with reductions of 63% and 45% in shoot and root biomass, respectively, the first year, and 38%, 34% in the second year. Overall regrowth potential declined as the season progressed and soil water content was gradually depleted. Thus, regrowth exceeded pretreatm ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article

Title: Growth and reproduction of grasses heavily grazed under rest-rotation management: Journal: Journal of Range Management; Authors: R. E. Eckert, and J. S. Spencer; Date: 1987; Summary: Authors determined basal area and frequency of occurrence of native grasses in three big sagebrush-grass communities in Nevada, following 3 years of heavy grazing in a 9-year, rest-rotation grazing system. Thurber needlegrass (Stipa thurberiana) decreased in the grazed plots and increased in the protected plots from 1977 to 1983, Idaho fescue (Festuca idahoensis) and squirreltail (Sitanion hystrix) increased in protected plots in the Wyoming big sagebrush-Idaho fescue (Artemisia tridentata wyomingensis-; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article