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United States Department of Agriculture

Agricultural Research Service


Location: Sunflower and Plant Biology Research

2009 Annual Report

1a. Objectives (from AD-416)
To expand testing of experimental sunflower germplasm beyond the Red River Valley into areas where sunflower is currently produced on a large scale. This project will concentrate on efforts such as insect resistance and drought resistance, which are currently difficult to study in our current field testing capacity.

1b. Approach (from AD-416)
We plan to expand testing of germplasm for yield and other characteristics, such as insect resistance, disease resistance, and drought tolerance, by initiating work at additional field sites including but not limited to Carrington, ND, Prosper, ND, and Highmore, SD. The germplasms tested will contain genes for high yield, high oil, and special traits such as high oleic acid constitution, Sclerotinia resistance, downy mildew resistance, rust resistance, and resistance to various insect pests including the sunflower moth, the banded sunflower moth, the red sunflower seed weevil, the stem weevil, and the Dectes stem borer. Many of these special traits cannot be tested at our current work sites because the sites lack consistent infestation, a problem that would be overcome by additional testing sites. These sites are also more typical of the sunflower production region. The funding discussed in this agreement will support this research by providing assistance to defray increased travel costs, additional supply costs, and costs associated with a full-time Term technician and part-time student to help manage the additional sites and workload.

3. Progress Report
This year, we have expanded yield trials of experimental, pre-release germplasm from one location to five locations in North Dakota and South Dakota. In 2008 and 2009, experimental hybrids were evaluated at all stages at Casselton, ND. In 2009, we added experimental hybrid evaluation for banded sunflower moth resistance at Prosper, ND, and red sunflower seed weevil resistance at Highmore, SD. We also made experimental hybrids using individuals from the Native American landrace Hopi as parents and evaluated them at both Orient, SD, and Carrington, ND. Near-release advanced sunflower germplasm lines were also evaluated at Carrington, ND. Progress on these evaluations will be given in presentations to the National Sunflower Association, as well as in peer-reviewed journals. Release of germplasm will also follow from this work. The ADODR monitors research progress by quarterly meetings with the Cooperator’s personnel and by site visits to field plot locations.

4. Accomplishments

Last Modified: 10/18/2017
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