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Project description

Influence of sublethal heating and soil moisture components on microbial colonization of weed seeds and nonemerged seedlings; potential for enhanced biological control. (05AW005)
Program UC IPM competitive research grants program
Principal
investigator
J.J. Stapleton, UC IPM, Kearney Agricultural Center
Host/habitat Unspecified
Pest Unspecified Weeds
Discipline Weed Science
Review
panel
Air and Water Quality
Start year (duration)  2005 (One Year)
Objectives Survey and define component effects of sublethal soil heating and soil moisture on microbe-induced mortality of seeds and germinated, but nonemerged, weed seedlings.

Project
Summary
Laboratory microcosm and field studies will be conducted to estimate the influence of sublethal heating and soil moisture components on microbial colonization of weed seeds and nonemerged seedlings. The previously observed phenomenon of biological control of weed propagules in soil subjected to solarization will be explored, with the aim of identifying the responsible microbial antagonists and mechanisms for maximizing and/or amplifying their herbicidal activity in solarized soils.

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