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United States Department of Agriculture

Agricultural Research Service

Title: Registration of Three Maintainer (Ha 444 to Ha 446) and One Restorer (Rha 447) High Oleic Oilseed Sunflower Germplasms

Authors
item Miller, Jerry
item GULYA, THOMAS
item Vick, Brady

Submitted to: Crop Science
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: June 30, 2005
Publication Date: January 1, 2006
Citation: Miller, J.F., Gulya Jr, T.J., Vick, B.A. 2006. Registration of three maintainer (HA 444 to HA 446) and one restorer (RHA 447) high oleic oilseed sunflower germplasms. Crop Science. 46:484-485.

Interpretive Summary: Three maintainer (HA 444, HA 445, and HA 446) and one restorer (RHA 447) oilseed sunflower germplasm lines were developed cooperatively and released by the USDA-ARS, Fargo, ND, and the North Dakota Agricultural Experiment Station, Fargo, ND. These germplasms are available for use by industry and public researchers to create hybrids, parental lines, or germplasms with a mid-oleic (NuSun) (55.0 to 70.0 % oleic fatty acid) or a high-oleic fatty acid composition desired by the food industry. HA 444 was derived from a cross between a USDA high-oleic line and a line with shorter height and lodging resistance. HA 445 was derived from a complex cross involving a short-height line with midge insect resistance, a USDA high-oleic line, and a line with the Pl6 downy mildew resistance. HA 446 was derived from a complex cross involving a short-height line with midge insect resistance, a USDA high-oleic line, a line with the Pl6 downy mildew resistance, and a USDA line with improved sclerotinia head rot resistance. RHA 447 was derived from crossing a USDA line with high-yield, and high-oil characteristics with a USDA line having high oleic fatty acid. Sclerotinia tolerance of these lines was evaluated by planting testcross hybrids that were artificially inoculated and placed under a mist irrigation system. The inoculation and mist irrigation was funded through the Sclerotinia Initiative. These lines provide increased genetic diversity to sunflower industry and public improvement programs.

Technical Abstract: Three maintainer (HA 444, HA 445, and HA 446) and one restorer (RHA 447) oilseed sunflower (Helianthus annuus L.) germplasm lines were developed cooperatively and released by the USDA-ARS, Fargo, ND, and the North Dakota Agricultural Experiment Station, Fargo, ND. These germplasms are available for use by industry and public researchers to create hybrids, parental lines, or germplasms with a mid-oleic (NuSun) (55.0 to 70.0 % oleic fatty acid) or a high-oleic fatty acid composition desired by the food industry. HA 444 was derived from a cross between a USDA high-oleic line and a line with shorter height and lodging resistance. HA 445 was derived from a complex cross involving a short-height line with midge insect resistance, a USDA high-oleic line, and a line with the Pl6 downy mildew [caused by Plasmopara halstedii (Farl.) Berl. & De Toni in Sacc.] resistance. HA 446 was derived from a complex cross involving a short-height line with midge insect resistance, a USDA high-oleic line, a line with the Pl6 downy mildew resistance, and a USDA line with improved sclerotinia [caused by Sclerotinia sclerotiorum (Lib.) de Bary] head rot resistance. RHA 447 was derived from crossing a USDA line with high-yield, and high-oil characteristics with a USDA line having high oleic fatty acid. Sclerotinia tolerance of these lines was evaluated by planting testcross hybrids that were artificially inoculated and placed under a mist irrigation system. The inoculation and mist irrigation was funded through the Sclerotinia Initiative. These lines provide increased genetic diversity to sunflower industry and public improvement programs.

Last Modified: 9/10/2014
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