Location: Sunflower and Plant Biology ResearchTitle: Registration of oilseed sunflower maintainer germplasm HA 489, with resistance to the banded sunflower moth
|WRONSKI, ADAM - Former ARS Employee|
Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 2/5/2020
Publication Date: 5/15/2020
Citation: Wronski, A.R., Prasifka, J.R., Grove, M.S., Koehler, B.D., Misar, C.G., Underwood, W., Hulke, B.S. 2020. Registration of oilseed sunflower maintainer germplasm HA 489, with resistance to the banded sunflower moth. Journal of Plant Registrations. 14:197-202. https://doi.org/10.1002/plr2.20030.
Interpretive Summary: In the Northern Plains, the banded sunflower moth is a yearly pest of sunflower. It is also present in the Central and Southern Plains, as well. The larvae feed on the developing kernels and frequently consume the entire kernel before exiting the hull. This results in significant losses for both oilseed and confectionery types. Typically, the insect is controlled with insecticide applications, and these are typically applied every year. The goal of our work was to produce, through conventional breeding techniques, a sunflower with genetic resistance to the banded sunflower moth. As a result, we released HA 489, the first sunflower line shown to have excellent resistance to banded sunflower moth over multiple environments.
Technical Abstract: The banded sunflower moth, Cochylis hospes Walsingham is one of the most pervasive insect pests of the sunflower (Helianthus annuus L.) in North America, in large part due to its ability to overwinter in cold climates. The goal of this research is to provide germplasm containing resistance to infestation by the banded sunflower moth while retaining valuable agronomic traits, such as imidazolinone herbicide tolerance, high yield, and high fatty acid (e.g., high oleic acid) content, along with suitable agronomic performance for the northern Great Plains climate and other similar climates where the banded sunflower moth is prevalent. ‘HA 489’ (Reg. No. _____; PI 691858) is a maintainer inbred germplasm developed by pedigree selection and testcross evaluation that can fill this need. HA 489 has high oleic acid composition, exhibits tolerance to imidazolinone, and provides resistance to banded sunflower moth infestation. This line was released by the USDA-ARS, Fargo, ND, to fill the need for sources of host-plant resistance to important insect pests.