Publication Date
1993
Description
This study evaluated the longevity of 132 introduced and iiative grass ecotypes seeded on a mountain big sagebrush-bluebunch wheatgrass (Atremisia tridentata ssp. vaseeyana-Agropyron spicatum) site in south• central Idaho. Species were established by direct seeding in 2 randomly replicated plots in 1939. Plantings were evaluated annually for 10 years and then at approximately 10-year intervals until 1991. Intermediate wheatgrass (Agropyron lntermedium), Fairway crested wheatgrass (Agropyron cristatum), and sulcata sheep fescue (Festuca ovina ssp. sulcata) were the primary introductions that persisted throughout the study. Native bluebunch wheatgrass and western wheatgrass (Agropyron smithii) were equally persistent. Considerable variability in longevity occurred among ecotypes of most species. Many common native perennials persisted for approximately 30 years.
Citation
Monsen, Stephen B. and Anderson, Val Jo, "A 52-Year Ecological History of Selected Introduced and Native Grasses Planted in Central Idaho" (2024). IGC Proceedings (1993-2023). 19.
https://uknowledge.uky.edu/igc/1993/session46/19
Included in
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A 52-Year Ecological History of Selected Introduced and Native Grasses Planted in Central Idaho
This study evaluated the longevity of 132 introduced and iiative grass ecotypes seeded on a mountain big sagebrush-bluebunch wheatgrass (Atremisia tridentata ssp. vaseeyana-Agropyron spicatum) site in south• central Idaho. Species were established by direct seeding in 2 randomly replicated plots in 1939. Plantings were evaluated annually for 10 years and then at approximately 10-year intervals until 1991. Intermediate wheatgrass (Agropyron lntermedium), Fairway crested wheatgrass (Agropyron cristatum), and sulcata sheep fescue (Festuca ovina ssp. sulcata) were the primary introductions that persisted throughout the study. Native bluebunch wheatgrass and western wheatgrass (Agropyron smithii) were equally persistent. Considerable variability in longevity occurred among ecotypes of most species. Many common native perennials persisted for approximately 30 years.
