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United States Department of Agriculture

Agricultural Research Service

Title: Performance of Sugarbeet Cyst Nematode Resistant Cultivars and a Search for Sources of Resistance

Authors
item Lewellen, Robert
item Pakish, Linda

Submitted to: American Society of Sugarbeet Technologists
Publication Type: Proceedings
Publication Acceptance Date: April 3, 2005
Publication Date: July 1, 2005
Citation: Lewellen, R.T., Pakish, L.M. 2005. Performance of sugarbeet cyst nematode resistant cultivars and a search for sources of resistance. American Society of Sugarbeet Technologists, March 2-5, 2005, Palm Springs, California. p. 122-123.

Interpretive Summary: Sugarbeet cyst nematode (SBCN) is a major problem of sugarbeet worldwide. Sugarbeet hybrids and lines with resistance to SBCN were evaluated in field trials at Brawley and Salinas, CA. These trials were under nondiseased and SBCN/rhizomania conditions. Resistance to SBCN was derived from both Beta procumbens and other sources. At Brawley under high SBCN populations and low to moderate rhizomania, hybrids with SBCN resistance had sugar yields from 170 to 230% higher than the SBCN susceptible-resistant commercial checks. SBCN eggs + larvae counts were about five times higher from the commercial checks as compared to counts from either source of SBCN resistance. Germplasm lines developed at Salinas and released as C927-4, CN12, CN72, and others showed promise as sources of resistance to SBCN. Progeny families are being evaluated and screened in greenhouse and field tests for high levels of resistance.

Technical Abstract: Sugarbeet cyst nematode (SBCN) is a major problem of sugarbeet worldwide. Sugarbeet hybrids and lines with resistance to SBCN were evaluated in field trials at Brawley and Salinas, CA. These trials were under nondiseased and SBCN/rhizomania conditions. Resistance to SBCN was derived from both Beta procumbens and other sources. At Brawley under high SBCN populations and low to moderate rhizomania, hybrids with SBCN resistance had sugar yields from 170 to 230% higher than the SBCN susceptible-resistant commercial checks. SBCN eggs + larvae counts were about five times higher from the commercial checks as compared to counts from either source of SBCN resistance. Germplasm lines developed at Salinas and released as C927-4, CN12, CN72, and others showed promise as sources of resistance to SBCN. Progeny families are being evaluated and screened in greenhouse and field tests for high levels of resistance.

Last Modified: 10/22/2014
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