Source: OHIO STATE UNIVERSITY submitted to NRP
GENOTYPE BY ENVIRONMENT EFFECTS ON WEED SEEDBANK PERSISTENCE IN THE NORTH CENTRAL REGION
Sponsoring Institution
Agricultural Research Service/USDA
Project Status
COMPLETE
Funding Source
USDA COOPERATIVE AGREEMENT
Reporting Frequency
Annual
Accession No.
0409312
Grant No.
(N/A)
Cumulative Award Amt.
(N/A)
Proposal No.
(N/A)
Multistate No.
(N/A)
Project Start Date
Mar 1, 2005
Project End Date
Nov 30, 2005
Grant Year
(N/A)
Program Code
[(N/A)]- (N/A)
Recipient Organization
OHIO STATE UNIVERSITY
(N/A)
WOOSTER,OH 44691
Performing Department
(N/A)
Non Technical Summary
(N/A)
Animal Health Component
30%
Research Effort Categories
Basic
60%
Applied
30%
Developmental
10%
Classification

Knowledge Area (KA)Subject of Investigation (SOI)Field of Science (FOS)Percent
2161510114010%
2161820114010%
2162300114080%
Knowledge Area
216 - Integrated Pest Management Systems;

Subject Of Investigation
1510 - Corn; 1820 - Soybean; 2300 - Weeds;

Field Of Science
1140 - Weed science;
Goals / Objectives
To determine the relative influence of genotype and environment, and burial method, on the persistence of weed seeds in the soil seedbank.
Project Methods
Quantify persistence of seeds of two economically important weeds in the North Central Region, giant foxtail and velvetleaf, in relation to accession (Hickory Corners, MI, and Wooster, OH), burial location (Hickory Corners, MI, and Wooster, OH), and burial method (soil cor vs. buried bag).

Progress 03/01/05 to 11/30/05

Outputs
4d Progress report. This report serves to document research conducted under a specific cooperative agreement between ARS and Ohio State University. Additional details of research can be found in the report for the parent project 3611-22000-018-00D, entitled Biologically and Ecologically Based Knowledge for Integrated Weed Management Systems. Research was conducted in Wooster, OH, to determine the relative importance of weed seed genotype, burial location and burial method on annual persistence of seeds in the soil seedbank. Data on weed seedling germination were collected and seed samples were sent to the ARS Invasive Weed Management Unit for seed recovery and viability testing. This research is important because weed seeds are the main source of recurrent weed infestations in agricultural fields, yet the sources of variation in seed longevity in the soil are still unclear. The results of this research will help support efforts by the Invasive weed management research unit to develop approaches for reducing weed seed longevity in the soil.

Impacts
(N/A)

Publications