Full TGIF Record # 98720
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Web URL(s):http://www.wsweedscience.org//wp-content/uploads/proceedings-archive/2004.pdf#page=36
    Last checked: 12/10/2013
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Wilson, David W.; Miller, Stephen D.
Author Affiliation:University of Wyoming, Laramie, Wyoming
Title:Influences of tillage in crop systems on grass weed seed viability
Section:Weed and agronomic crops
Other records with the "Weed and agronomic crops" Section
Meeting Info.:Colorado Springs, Colorado: March 9-11, 2004
Source:Proceedings of the Western Society of Weed Science. Vol. 57, 2004, p. 34.
# of Pages:1
Publishing Information:Newark, CA: Western Society of Weed Science
Keywords:TIC Keywords: Tillage; Seeds; Weed Seeds
Abstract/Contents:"A reliable and accurate means of studying the effects of tillage on weed seed viability was begun in September of 2001. The study used microchip tracking methods with a string grid system to relocate each of 160 tagged mesh packets of 100 weed seeds. This method allows packets to move freely in the field, simulating seed movement in soil during tillage. The viability of wild oats and feral rye in a wheat/sunflower/millet crop rotation under five types of reduced tillage were compared to laboratory stored controls. The five tillage treatments included a no-till field and the use of an Australian prickle chain, a rod weeder, a field cultivator and a disk harrow in four other fields. Packets were placed one meter apart perpendicular to the direction of tillage and 10 meters apart in the direction of tillage. All fields were tilled from south to north after weed packet implantation and prior to winter wheat seeding. No additional tillage has occurred on the fields since the initial application other than soil movement due to planting operations. The movement of recovered packets was recorded at time of recovery (September 2002 and 2003) followed by tetrazolium chloride viability testing of the samples. Results from the second year of a four year study showed significant differences between the tillage treatments and the stored control, but no significant differences between the types of tillage treatment used for either weed species. The viability of feral rye ranged between 0 to 2 percent across tillage treatments, with a laboratory stored control viability of 47 percent. The viability of wild oat ranged between 3 to 8 percent across tillage treatments, with a laboratory stored control viability of 43 percent. No-till treatments had viabilities of 1 percent for feral rye and 8 percent for wild oats in the second year. The movement of packets varied from 0 to 68 cm horizontally and 0 to 15 centimeters vertically in the soil profile. [Paper Number 29]"
Language:English
References:0
Note:"This article appears as abstract only."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wilson, D. W., and S. D. Miller. 2004. Influences of tillage in crop systems on grass weed seed viability. Proc. West. Soc. Weed Sci. 57:p. 34.
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Web URL(s):
http://www.wsweedscience.org//wp-content/uploads/proceedings-archive/2004.pdf#page=36
    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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