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ARS Home » Research » Publications at this Location » Publication #110646
Title: SPATIAL DESCRIPTION OF A WEED SEED BANK

Author
item VAN DE WOESTYNE, BRAD - UNIV OF ILLINOIS
item BULLOCK, DONALD - UNIV OF ILLINOIS
item SIMMONS, FREDERICK - UNIV OF ILLINOIS
item STOLLER, EDWARD - RETIRED ARS EMPLOYEE
item Wax, Loyd

Submitted to: Weed Science Society of America Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 3/15/2000
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Understanding the ecology of weed seed banks could lead to more efficient and more sustainable weed management systems by enhancing weed control strategies. Previous research has determined weed seed distributions are aggregated across a field and may have spatial structure. The inability to adequately map the spatial distribution of a seed bank at a field level is a problem in seed bank studies. Also, the spatial structure of a seed bank may be dependent on biotic or abiotic factors of the landscape that favor the occurrence of weed seed. The objective of this research is to analyze the spatial distribution of a weed seed bank at a field level and possibly relate the distribution to underlying soil characteristics. Soil samples were taken at georeferenced locations across a 16-hectare field. Weed seed was extracted from the soil samples by direct counting method. A geostatistical analysis is used to describe weed seed bank spatial distribution when classical statistics are invalid. Correlation between weed seed occurrence and soil properties are examined and discussed if valid.