Suppression of annual Bromus tectorum
by perennial Agropyron cristatum Roles of soil nitrogen availability and biological soil space.
Its stereo hyperspectral machine vision system allows the iron goat to be species-selective, so it can target invasive species like Bromus tectorum
(a noxious weed that invades grassland communities and displaces native plants), which often thrive in disturbed areas.
seed germination: between-population and between-year variation.
Three noxious species listed by the Idaho Department of Agriculture included Bromus tectorum
(Cheatgrass), Lepidium latifolium, and Linaria vulgaris (USDA, NRCS 2012).
Common name Scientific name Class Life cycle * Downy brome Bromus tectorum
Grass WA London rocket Sisymbrium irio Broadleaf WA Creeping thistle Circium arvense Broadleaf CP Yellow goats-beard Tragopogon dubius Grass SP Field bindweed Convolvulus arvensis Broadleaf CP Bermudagrass Cynodon dactylon Grass CP Foxtail barely Hordeum jubatum Grass SA Dandelion Taraxacum officinale Broadleaf SP Quackgrass Agropyron repence Grass CP Russian knapweed Acroptilon repens Broadleaf CP lambsquarters Chenopodium album Broadleaf SA Plantain Plantago spp.
For example, Evans and Young (1970) found that placing seeds of the annual Bromus tectorum
(cheatgrass) below 5 or 10 cm of herbaceous leaf litter increased fall and early spring emergence by 4- to 5-fold in a field experiment in the Great Basin Desert of western Nevada.
Correlation between molecular markers and adaptively significant genetic variation in Bromus tectorum
(Poaceae), an in breeding annual grass.
Noxious Downy brome Bromus tectorum
Invasive Field bindweed Convolvulus arvensis Noxious Field sowthistle Sonchus arvensis Noxious Garlic mustard Alliaria petiolate Invasive Hoary cress, whitetop Cardaria draba Noxious Japanese honeysuckle Lonicera japonica Invasive Japanese knotweed Polygonum cuspidata Invasive Johnsongrass Sorghum halepense Noxious Kudzu Pueraria montana Invasive var.
The research at El Reno focused on bermudagrass, Cynodon dactylon, alone and with a scattering of senescent downy brome, Bromus tectorum
, and yellow bristlegrass, Setaria glauca.
This grows in sites at higher elevations, together with the grasses Bromus tectorum
, alkali grass (Distichlis spicata), dropseed (Sporobolus airoides), and different species of prickly pear (Opuntia).
, a biotic cause of ecosystem impoverishment in the Great Basin.
The three most common dominant herbaceous species were Artemisia tridentata (big sagebrush), Gutierrezia sarothrae (snakeweed), and Bromus tectorum
(downy chess grass); and the three most common dominant overstory and understory species were Juniperus monosperma (one-seed juniper), d.