Glumes are long and narrow with wanting shoulders and acute beaks. Seed is oval with rounded cheek and a short, collared brush. Seed crease is mid-wide and shallow. 555W 555W is a medium maturing, medium height variety with excellent straw strength, marketed by Southern States Cooperative. It is resistant to powdery mildew and moderately resistant to stem rust.
Heads are fusiform, awnletted, yellow, and mid-dense.
566W 566W is a tall, full season, high yielding soft red winter wheat variety marketed by Southern States Cooperative with good disease resistance to many common diseases. It is three days later than Madison in maturity. Jackson is moderately resistant to powdery mildew and has resistance to some races of rust. It is moderately susceptible to Wheat Spindle Streak Mosaic virus, susceptible to SR stem rust, LR leaf rust, and is moderately tolerant to Septoria. It is resistant to stem rust, leaf rust, powdery mildew, and Wheat Spindle Streak Mosaic virus.