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ARS Home » Plains Area » Fargo, North Dakota » Edward T. Schafer Agricultural Research Center » Sunflower and Plant Biology Research » Research » Publications at this Location » Publication #122166
Title: REGISTRATION OF FIVE FERTILITY RESTORER SUNFLOWER GERMPLASMS

Author
item Miller, Jerry
item Gulya Jr, Thomas
item Seiler, Gerald

Submitted to: Crop Science
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 10/31/2001
Publication Date: 1/1/2002
Citation: MILLER, J.F., GULYA JR, T.J., SEILER, G.J. REGISTRATION OF FIVE FERTILITY RESTORER SUNFLOWER GERMPLASMS. CROP SCIENCE. 2002. V. 42 (3). P. 989-991.

Interpretive Summary: Five sunflower fertility restorer germplasm lines were developed and released by the USDA-ARS, Fargo, ND, and the North Dakota Agricultural Experiment Station, Fargo, ND. RHA 417, also known as 'Sunburst' (PI 600000), is characterized by hybrids that have shorter height, high yield, and high seed oil content. This line is extremely short in height, and has profuse branching controlled by a recessive gene. RHA 418 produces hybrids that are tolerant to the sunflower midge, one of the most devastating insect pests of sunflower. RHA 419 and RHA 420 were derived from interspecific crosses between cultivated sunflower and Helianthus argophyllus. The H. argophyllus accession was collected along a sandy beach near Daytona, FL. RHA 428 was derived from an interspecific cross between cultivated sunflower and a wild Helianthus annuus accession, PI 413157. RHA 419, RHA 420, and RHA 428 provide resistant to prevalent North American races of downy mildew and to metalxyl resistant strains of these races. The germplasm lines are available for use by sunflower industry and public researchers to create hybrids, parental lines, or improved germplasms.

Technical Abstract: Five sunflower (Helianthus annuus L.) fertility restorer germplasm lines were developed and released by the USDA-ARS, Fargo, ND, and the North Dakota Agricultural Experiment Station, Fargo, ND. RHA 417, also known as 'Sunburst' (PI 600000), is characterized by hybrids that have shorter height, high yield, and high seed oil content. This line is extremely short in height, and has profuse branching controlled by a recessive gene. RHA 418 produces hybrids that are tolerant to the sunflower midge (Contarinia schulzi), one of the most devastating insect pests of sunflower. RHA 419 and RHA 420 were derived from interspecific crosses between cultivated sunflower and Helianthus argophyllus. The H. argophyllus accession was collected along a sandy beach near Daytona, FL. RHA 428 was derived from an interspecific cross between cultivated sunflower and a wild Helianthus annuus accession, PI 413157. RHA 419, RHA 420, and RHA 428 provide resistant to prevalent North American races of downy mildew (Plasmopara halstedii) and to metalxyl resistant strains of these races. The germplasm lines are available for use by sunflower industry and public researchers to create hybrids, parental lines, or improved germplasms.