Full TGIF Record # 98731
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Web URL(s):http://www.wsweedscience.org//wp-content/uploads/proceedings-archive/2004.pdf#page=45
    Last checked: 12/10/2013
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Tarasoff, Catherine S.; Ball, Daniel A.; Frost, Sandra; Mallory-Smith, Carol A.
Author Affiliation:Tarasoff and Mallory-Smith: Crop Science Building, Oregon State University, Corvallis, Oregon; Ball and Frost: Columbia Basin Agriculture Research Center, Oregon State University, Pendleton, Oregon
Title:Seed dormancy and germination characteristics of two alkaligrass species: Puccinellia distans and Puccinellia nuttalliana
Section:Basic science
Other records with the "Basic science" Section
Meeting Info.:Colorado Springs, Colorado: March 9-11, 2004
Source:Proceedings of the Western Society of Weed Science. Vol. 57, 2004, p. 43.
# of Pages:1
Publishing Information:Newark, CA: Western Society of Weed Science
Keywords:TIC Keywords: Seed dormancy; Germination; Poa pratensis; Puccinellia distans; Weed control; Stratification
Abstract/Contents:"Alkaligrass (Puccinellia spp.) is a nuisance weed within Kentucky bluegrass (Poa pratensis) grass seed fields through out the Grande Ronde Valley of Eastern Oregon. However, to plan effective weed management strategies we must first understand basic characteristics of weed seed biology. Basic characteristics of seed dormancy in two alkaligrass grass species (Puccinellia distans and Puccinellia nuttalliana) were analyzed to determine if afterripening (10, 30, 90, 180, and 365 days), stratification (5 days at 5C), potassium nitrate solution, or germination temperature (20C or 30C) had an affect [effect] on germination rates. Results indicated that an afterripening period of at least 365 days was required for both species before any treatment effect was significant. After such time, stratification combined with a germination temperature of 20C yielded the greatest germination results in both species. As well, to understand seasonal germination requirements, day and night temperature combinations were studied using a two-way thermogradient plate. Day and night temperatures on the plate ranged from approximately 5C to 40C at roughly 10C increments. Germination was calculated at 3 day intervals up to a total germination value at day 18. Both species prefered alternating day and nighttime germination temperatures of 10/30C."
Language:English
References:0
Note:"This article appears as abstract only."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Tarasoff, C. S., D. A. Ball, S. Frost, and C. A. Mallory-Smith. 2004. Seed dormancy and germination characteristics of two alkaligrass species: Puccinellia distans and Puccinellia nuttalliana. Proc. West. Soc. Weed Sci. 57:p. 43.
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Web URL(s):
http://www.wsweedscience.org//wp-content/uploads/proceedings-archive/2004.pdf#page=45
    Last checked: 12/10/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
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MSU catalog number: SB 610 .W43 v.49
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