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United States Department of Agriculture

Agricultural Research Service

Title: Registration of Eight Maintainer (Ha 393, Ha 394 and Ha 402 to Ha 407) and Seven Restorer (Rha 395 to Rha 401) Sunflower Germplasm Lines

Authors
item Miller, Jerry
item GULYA, THOMAS

Submitted to: Crop Science
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: May 31, 1997
Publication Date: N/A

Interpretive Summary: Eight oilseed sunflower maintainer germplasm lines and seven oilseed sunflower restorer germplasm lines were developed cooperatively by USDA- ARS and the North Dakota Agricultural Experiment Station. These lines provide diversity in agronomic, morphologic, oil content, and rust resistance characteristics for use in sunflower breeding and hybrid development programs. HA 393 to RHA 396 were developed through a reciprocal full-sib selection scheme utilizing Verticillium wilt and Downy Mildew resistant synthetics. RHA 297 was developed by crossing a U.S. line with a germplasm derived from the Grain Crops Research Institute, South Africa. RHA 297 is resistant to the most common races of rust in the U.S., providing genetic diversity to hybrids for this economically important disease. RHA 398 to RHA 401 were derived from crosses of U.S. restorer lines with germplasms obtained through Office of International Cooperation and Development (OICD) exchanges with Yugoslavia, Russia, Australia, and South Africa. HA 402 to HA 407 were derived from crosses of U.S. maintainer lines with germplasms obtained through OICD exchanges with France, Bulgaria, Argentina, South Africa, and Russia. Hybrids with these released lines provide significant increases in oil content. Hybrids with RHA 400, RHA 401, HA 402, HA 405, HA 406, and HA 407 had significantly more lodging resistance than check hybrids.

Technical Abstract: Eight oilseed sunflower (Helianthus annuus L.) maintainer germplasm lines and seven oilseed sunflower restorer germplasm lines were developed cooperatively by USDA-ARS and the North Dakota Agricultural Experiment Station. These lines provide diversity in agronomic, morphologic, oil content, and rust resistance characteristics for use in sunflower breeding and hybrid development programs. HA 393 to RHA 396 were developed through a reciprocal full-sib selection scheme utilizing Verticillium wilt and Downy Mildew resistant synthetics. RHA 297 was developed by crossing a U.S. line with a germplasm derived from the Grain Crops Research Institute, South Africa. RHA 297 is resistant to the most common races of rust in the U.S., providing genetic diversity to hybrids for this economically important disease. RHA 398 to RHA 401 were derived from crosses of U.S. restorer lines with germplasms obtained through Office of International Cooperation and Development (OICD) exchanges with Yugoslavia, Russia, Australia, and South Africa. HA 402 to HA 407 were derived from crosses of U.S. maintainer lines with germplasms obtained through OICD exchanges with France, Bulgaria, Argentina, South Africa, and Russia. Hybrids with these released lines provide significant increases in oil content. Hybrids with RHA 400, RHA 401, HA 402, HA 405, HA 406, and HA 407 had significantly more lodging resistance than check hybrids.

Last Modified: 9/10/2014
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