|Mcgrath, J Mitchell - Mitch|
Submitted to: Germplasm Release
Publication Type: Germplasm Release
Publication Acceptance Date: 4/2/2000
Publication Date: N/A
Interpretive Summary: This is a germplasm release. No Interpretive Summary is needed.
Technical Abstract: EL51 is a predominantly multigerm sugarbeet line combining extremely high resistance to Rhizoctonia crown and root rot root rot with moderately high resistance to Cercospora leaf spot disease. EL51 was derived from seven F1 plants from a cross of four plants of FC701/5 with a group of 87 plants comprised of 15 mass selected FC701/5 plants and 72 plants from ten families from 1981, 1982, 1983, and 1984 traditional East Lansing germplasm, some with Rhizoctonia resistance breeding history. EL51 is diploid and highly self-sterile. EL51 yielded a sucrose concentration 88 percent of the mean of that of two commercial cultivars ACH185 and HME17 in three tests at Saginaw MI in 1996 and 1997. EL51 had a Rhizoctonia disease index significantly more resistant than resistant checks FC705/1 and FC712 in the 1997 USDA-ARS commercial cultivar evaluation at East Lansing. EL51 had a stand rating of moderately resistant in the 1997 Betaseed summer root trot (Aphanomyces) evaluation at Shakopee MN.