Please pass along the following position announcement to anyone who may
be interested in weed ecology and ecologically-based weed management
strategies.
Thanks,
Eric
________________________________
<bold><fontfamily><param>Geneva</param><bigger><bigger>POSITION
AVAILABLE
</bigger></bigger></fontfamily></bold><bigger><bigger><underline><fontfamily=
><param>Times</param>M.S.
Assistantship</fontfamily></underline><fontfamily><param>Times</param>,
<underline>PhD. Assistantship</underline>, <bold><italic>or
</italic></bold><underline>Postdoctoral Scientist</underline>
Washington State University, Department of Crop and Soil Sciences,
Pullman, WA.
</fontfamily><bold><fontfamily><param>Geneva</param>PROJECT TITLE
</fontfamily></bold><fontfamily><param>Times</param>The Role of
Microbially-Mediated Decay in Mortality of Annual Grass Weed Seeds
</fontfamily><bold><fontfamily><param>Geneva</param>PROJECT
DESCRIPTION
</fontfamily></bold><fontfamily><param>Times</param>No-till systems
are under investigation in major crop producing regions as a way to
improve soil quality, reduce erosion, and maintain or increase crop
yield and quality. Compared to conventional tillage, no-till may offer
conditions more conducive to microbial decay of weed seeds. Without
inversion tillage, seeds stay near the surface where crop residues,
moisture, and lack of disturbance create an environment that encourages
soil microbial activity. To better understand and perhaps more fully
exploit the relationships between soil microorganisms and weed seed
decay, this project will characterize the role of soil microbes in weed
seed mortality in the field; correlate soil microbial community
characteristics with seed deterioration; and evaluate mechanisms of
deterioration resistance in dormant seeds. We hypothesize that the
seed decay potential of a soil is correlated with soil quality and
microbial community characteristics that will be determined by FAME
profiles and substrate utilization assays. Also, because the hulls
(lemmas, paleas, pericarp, and glumes, when present) of wild oat
(<italic>Avena fatua</italic> L.), jointed goatgrass (<italic>Aegilops
cylindrica</italic> Host.), and downy brome (<italic>Bromus
tectorum</italic> L.) create a specialized physical and chemical
environment surrounding the caryopsis and seed, we hypothesize that
this unique environment harbors symbiotic or saprophytic microorganisms
that may affect decay of these species in the field.
</fontfamily><bold><fontfamily><param>Geneva</param>FOR ADDITIONAL
INFORMATION
</fontfamily></bold><fontfamily><param>Times</param>Send a letter
(email preferred) describing your academic background, research
experience, and interest in this project to: =20
Eric R. Gallandt
PO Box 646420
Washington State University
Pullman, WA 99164-6420
Wk: (509) 335-3385
=46x: (509) 335-8674
Email: gallandt@wsu.edu
</fontfamily></bigger></bigger>
<fontfamily><param>Times</param><bigger><bigger>Eric Gallandt
Asst. Professor,
Weed Ecology & Management
</bigger></bigger></fontfamily>
----------------------------
Crop and Soil Sciences Dept.
Washington State University
PO Box 646420
Pullman, WA 99164-6420
----------------------------
509/335-3385
509/335-8674 (fax)
Gallandt@WSU.edu
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