Agronomy and Horticulture Department


Date of this Version



Published in Crop Science (May-June 1990) 30: 759.


NP30 sudangrass [Sorghum bicolor (L.) Moench] [formerly S. sudanense (Piper) Staph] (Reg. no. GP-238, PI 535774) is a low-dhurrin, random-mating population developed cooperatively by the USDA-ARS and the Nebraska Agricultural Research Division. The population was released in April 1989. NP30 was synthesized from 85 S1 families selected from a total of 757 families that were evaluated for regrowth potential. The germplasm sources evaluated included 50 S1 families from the NP25(3) sudangrass population, 90 from NP28(2), 284 from NP29(4), 200 from NP31(5), 50 from NP32(5), and 83 S1 families from miscellaneous breeding lines low in dhurrin. The 85 S1 families selected for superior regrowth were derived from only two of the above sources with 42 S1S being selected from NP29 and 43 S1S from NP31. Both NP29 and NP31 carried the ms3 gene for genetic male-sterility.