USG 3120


At a Glance

USG 3120 is a high-yielding, early maturity soft red winter wheat. It is an awned, medium-tall plant with very good resistance to leaf blotch, stripe rust, leaf rust and powdery mildew. It is susceptible to soil-borne mosaic virus.


It has excellent winter hardiness and standability. It has a short vernalization requirement and flowers early. This variety has a wide area of adaptability with strong test weights per bushel.


In 2007, USG 3120 was evaluated at six locations (Arkansas, Florida, Georgia, Louisiana, North Carolina and Virginia) in a regional nursery (Gulf Atlantic Wheat Nursery). From 2007 to 2009, USG 3120 was evaluated in the Georgia Small Grain State Performance Trials. It also was evaluated in 2008 in the Uniform Southern Wheat Nursery in 21 locations.


USG 3120 was developed by Drs. Jerry Johnson, G. David Buntin and James Buck, (participating scientists include Dan Bland, Steve Sutton and John Youmans) at the University of Georgia Agricultural Experiment Station in Griffin, Ga. USG 3120 is a wheat variety that is protected under the Plant Variety Protection Act, which means it can only be sold by individuals licensed by the University of Georgia Research Foundation (UGARF) and Georgia Seed Development (GSD). Sold by UniSouth Genetics.


Dr. Jerry Johnson

Dr. Jerry Johnson

Dr. Jerry W. Johnson is a Professor Emeritus at the University of Georgia in the Department of Crop and Soil Science where he has been leading the successful small grain breeding program and educating UGA graduate students since 1977.

Born in Perry, Ga., Dr. Johnson was raised on a family farm growing peanuts, cotton, corn, and swine. Prior to his appointment at UGA, Dr. Johnson was the small grain breeder at the University of Maryland. 

His research focuses on the development of small grain cultivars and germplasm with superior productivity, disease and insect resistance, and milling and baking quality. He has released or co-released more than 33 small grain cultivars. The program identifies, incorporates and evaluates potential cultivars for their agronomic suitability and capacity to resist economically important pests such as leaf rust, powdery mildew, and Hessian fly. This research also emphasizes the identification and utilization of marker-assisted selection of genes resistant to important diseases and insects.

Dr. Johnson, named a Fellow in the American Society of Agronomy and the Crop Science Society of America, is the recipient of numerous state and national awards, including the Georgia Crop Improvement Association Superior Service Award (1993), Georgia Superintendent Friend of Education Award, American Society of Agronomy Career Research Award - Southern Branch (2000), University of Georgia Alumni Association Outstanding Faculty Award (2003), and Georgia Seedsmen Association Outstanding Service Award (2009).

Dr. Johnson graduated from Purdue University with a M.S. and a Ph.D. in Plant Breeding and Genetics. He earned a B.S. degree in Agronomy from the University of Georgia and an associate degree from Abraham Baldwin Agricultural College.


  • University of Georgia
  • The Department of Crop and Soil Science