By David Moseley, Gravois, Kenneth, Foster, Matthew, Price, III, Paul P, Padgett, Guy B., Harrison, Stephen A., Harrell, Dustin L., Labonte, Don R.
LSU AgCenter
New row crop varieties — soybeans, wheat, rice, corn, cotton, grain sorghum, sweet potatoes and sugarcane — are released annually by private companies and university breeding programs. Each variety can vary dramatically in yield potential, agronomic traits such as maturity, and resistance to insects, diseases and environmental stress factors. It is important to note a variety with high yield potential at one location may not be competitive in another location because of a lack of adaptability to different environments, including weather patterns, soil characteristics, disease pressure and cropping systems. Furthermore, a variety achieving a high yield or quality one year may not perform as well the next year at the same location because of yearly changes in the environment, such as rainfall or disease patterns.