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Sunday, August 9, 2020 | History

2 edition of Interference in Bromus tectorum L. found in the catalog.

Interference in Bromus tectorum L.

William Franklin Pell

Interference in Bromus tectorum L.

an analysis of individual plant response

by William Franklin Pell

  • 160 Want to read
  • 4 Currently reading

Published .
Written in English

    Subjects:
  • Plant spacing.

  • Edition Notes

    Statementby William Franklin Pell.
    The Physical Object
    Paginationvii, 43 l.
    Number of Pages43
    ID Numbers
    Open LibraryOL16722695M

    Bromus tectorum L. (cheatgrass) in particular. This chapter reaches beyond that spe-ciÞ c ecoregion and individual species to examine the invasion potential, ecosystem threats, and management strategies for the dominant Bromus species within each of Þ ve major ecoregions of the western United States (Table ; Fig. ). Nomenclature: Downy brome, Bromus tectorum L. Key words: Wildfire, climate change, annual grass invasion, invasive species, high-elevation rangelands, cheatgrass. Downy brome or cheatgrass (Bromus tectorum L.) spread across most of the western United States by (Mack ), and now affects at least million hectares (

    Bromus tectorum is one of the most widespread introduced annual grasses in the United States, occurring in all 50 states as well as in most of the Canadian provinces and in parts of Mexico. It is most common where annual rainfall ranges from cm and autumn rainfall ranges from 5 . Bromus tectorum cover was negatively correlated with sagebrush density and positively correlated with perennial basal gap size (S1 File; S2 File). However, Bromus tectorum cover was not significantly correlated with cover of E. elymoides, P. spicata, or P. secunda .

    Because of previous cropping histories, initial weed density was higher in the east than in the west plots. Weed management for east WWF was more intense than for west WWF and reduced Bromus tectorum L. density without a subsequent increase of other species. In contrast, weed management in west WWF was less intense and B. tectorum increased.   Bromus tectorum in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Vernacular names [ edit ] العربية: شويعرة متدلية.


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Interference in Bromus tectorum L by William Franklin Pell Download PDF EPUB FB2

Bromus tectorum has been introduced to southern Russia, west central Asia, North America, Japan, South Africa, Australia, New Zealand, Iceland, and Greenland. It was first found in the United States (where it is known as downy brome or cheatgrass) in in New York and Pennsylvania, by B.

tectorum reached throughout the United States (including Hawaii and Alaska), except for Florida and Clade: Tracheophytes. Plant-plant interactions influence community dynamics and plant establishment. The objectives of this study were to quantify the effects of interference between seedlings of cheatgrass (Bromus tectorum L.) and yellow starthistle and to compare growth of isolated individuals of these species.

Genetic variation in Bromus tectorum (Poaceae): differentiation in the eastern United States. American Journal of Botany 89(4) Colorado State Parks. Downy Brome (Cheatgrass) - Best Management Practices - Weed Profile (PDF | KB). Integrated Taxonomic Information System.

Bromus tectorum. [Accessed ]. Robert E. Blackshaw, Downy Brome (Bromus tectorum) Density and Relative Time of Emergence Affects Interference in Winter Wheat (Triticum aestivum), Weed Science, /SX, 41, 4, (), ().Cited by: Common Name: BROME, CHESS Habit: Annual to perennial : basal and cauline; sheath closed to near top, hairy or glabrous; ligule = 7 mm, membranous, entire to fringed; blade flat to escence: generally raceme- or panicle-like, open to dense; pedicels generally stiff, et: strongly laterally compressed to cylindric; florets ; axis breaking above glumes and.

Effects of three temperature regimes (16/5, 24/11, and 32/16°C day/night temperatures) and two moisture levels on growth, interference and photosynthesis response in Bromus tectorum and Taeniatherum.

Bromus tectorum L. is an accepted name This name is the accepted name of a species in the genus Bromus (family Poaceae). The record derives from WCSP which reports it as an accepted name (record ) with original publication details: Sp.

77 Bromus tectorum L. Bromus tectorum L. is an accepted name This name is the accepted name of a species in the genus Bromus (family Poaceae). The record derives from WCSP (data supplied on ) which reports it as an accepted name (record ) with.

A WEED REPORT from the book Weed Control in Natural Areas in the Western United States Ripgut, red, and downy brome (cheatgrass) 2 of 4 survive in soil 2 to 3 years under field conditions, but some seeds may survive up to 5 years.

Thatch accumulation or shallow burial favors establishment of germinating seeds. Invasive annual grasses, such as cheatgrass (Bromus tectorum L.), have proliferated in dryland ecosystems of the western United States, promoting increased fire activity and reduced biodiversity that can be detrimental to socio-environmental systems.

Monitoring exotic annual grass cover and dynamics over large areas [ ] Read more. Exotic Annual Bromus Invasions: Comparisons Among Species and Ecoregions in the Western United States Matthew L. Brooks, Cynthia S.

Brown, Jeanne C. tion on Bromus species, such as B. tectorum L. (cheatgrass or downy brome), as on other exotic invasive plant species in the USA and elsewhere.

A Google Scholar search of literature on the Bromus genus reveals more t primary research publications in the last century. Moreover, many thousands of seeding, fencing, and. Interference between cheatgrass and yellow starthistle at 3 soil depths. Cheatgrass (Bromus tectorum L.) and yellow starthistle (Centaurea solstitialis L.) have invaded over thousand hectares throughout the Pacific Northwest.

Future management of rangelands dominated by these species will require an understanding of the plant-plant. Stahlman, PW, Miller, SD () Downy brome (Bromus tectorum) interference and economic thresholds in winter wheat (Triticum aestivum).

Weed Sci – Statistics Canada () Estimated areas, yield, production, average farm price and total farm value of principal field crops, in metric and imperial units. Bromus mairei Sennen & Mauricio Bromus nutans St.-Lag. Bromus scabriflorus Opiz Bromus setaceus Buckley Bromus sterilis Láng Bromus sterilis Láng ex Kumm.

& Sendtn. Bromus sterilis f. ponticus () Kuntze Bromus sterilis var. nudus (Klett & Richt.) Kuntze Bromus sterilis var. tectorum (L.) Kuntze Bromus tectorius Dulac Bromus tectorum f. Facilitation and interference of seedling establishment by a native legume before and after wildfire. Oecologia, Vol.Issue.

1, p. (Bromus tectorum L) Fact Book. Washington, DC Federal Interagency Committee for the Management of Noxious and Exotic Weeds.

Young. Bromus tectorum is a ANNUAL growing to 1 m (3ft 3in). It is hardy to zone (UK) 8. The species is hermaphrodite (has both male and female organs) and is pollinated by Wind.

Suitable for: light (sandy), medium (loamy) and heavy (clay) soils, prefers well-drained soil and can grow in nutritionally poor soil. Suitable pH: neutral and basic (alkaline) soils and can grow in saline soils.

Invasive annual grasses, such as cheatgrass (Bromus tectorum) and medusahead (Taeniatherum caput-medusae), are one of the most significant stressors to rangeland ecosystems in the western U.S. Their expansion and dominance across this area are the most damaging ecosystem agents on. Introduction.

Bromus tectorum L. is an invasive winter annual grass that was introduced into the United States from Eurasia in the late 19 th century. While the current distribution of um extends throughout the United States, it is particularly abundant in the Intermountain West [], and it is listed as a Class C noxious weed in the state of Colorado [].

Bromus tectorum L. Canadian Journal of Plant Science Sources of information: Spread by attachment to human clothing or by clinging to hair and fur of livestock. Contaminated grain seed probably was the early method of dispersal.

Seeds can also be dispersed as a contaminant in hay and straw or by mud clinging to machinery. Bromus tectorum provides poor-quality herbage for stock, and its dominance has resulted in a decline in rangeland quality (Fig. 3). Figure 3. Extensive arid steppe in Washington State, USA, dominated by Bromus tectorum which, following fire and grazing, displaces native shrubs (foreground) and grasses.The currently accepted scientific name for cheatgrass is Bromus tectorum L.

(Poaceae) [,,,]. LIFE FORM: Graminoid FEDERAL LEGAL STATUS: No special status OTHER STATUS: As of this writing (), cheatgrass is classified as a noxious weed or weed seed in 2 states in the U.S. and 3. Cheatgrass (Bromus tectorum L), an exotic annual, is a common, and often dominant, species in both the shadscale and sagebrush-steppe communities of the Great Basin imately 20% of the sagebrush-steppe vegetation zone is dominated by cheatgrass to the point where the establishment of native perennial species is nearly Impossible.