Submitted to: Annual Beet Sugar Development Foundation Research Report
Publication Type: Experiment station
Publication Acceptance Date: 5/1/2004
Publication Date: 6/30/2004
Citation: Bates, C., Davenport, J., Bird, G.W., McGrath, J.M., Lewellen, R.T. 2004. Sugar beet seed germplasm testing of resistance to sugar beet cyst nematode. 2003 Annual Beet Sugar Development Foundation Research Report. p.D17-20. Interpretive Summary:
Technical Abstract: The cyst nematode Heterodera schachtii is responsible for approximately 90% of all nematode related sugar beet damage. This experiment was an initial test into the development of an SBCN assay in the greenhouse whereby selections for further breeding could be performed. A small number (perhaps as few as 16) of breeding lines appear to be resistant to SBCN, but no commercial cultivars are marketed at this time. Four of these were tested to evaluate various assay strategies. Clear differences were observed between individuals and germplasm lines in response to SBCN infection, particularly by eight weeks after infection. One line was shown to have uniform resistance to sugar beet cyst nematode. Apparent segregation was evident for two others as expected. A susceptible line was variable, but counts of cyst and white females were higher than with other germplasm. This test will be useful in characterizing sources of resistance and in breeding enhanced germplasm with resistance to the sugarbeet cyst nematode.