CENTERFIELD

Probable Area of Adaptation and Limitations

            Centerfield is widely adapted to Oklahoma and combines into one cultivar the primary adaptation zones ascribed to AP502CL (western Oklahoma) and 2174 (central Oklahoma).  It will be primarily positioned for the north central and central portions of the state prone to acquire wheat soilborne mosaic and spindle streak mosaic virus and low pH areas prone to aluminum toxicity.

            Centerfield, like Okfield, will not only appeal to grain-only producers but also to dual-purpose producers who place greater emphasis on winter grazing potential and grain production.  Forage accumulation in the early fall is above-average, but we do not recommend extremely early seeding of Centerfield due to its heat sensitivity during germination (similar to 2174).

Varietal Replacement

Cultivar           Superior attribute of  Centerfield justifying replacement

Above/AP502CL

                        Adaptation range readily extends into central Oklahoma

                        Green-leaf retention

                        Tolerance to leaf rust and stripe rust

                        Large kernel size at substantially higher test weight

                        Later FHS and longer winter grazing potential

                        Recovery from grazing and grain yield in dual-purpose system

Okfield            Tolerance to WSBMV and WSSMV

                        Acid-soil tolerance

                        Leaf rust resistance

                        Test weight

                        Slight improvement in forage accumulation (visual assessment only)

2174                                Imidazolinone resistance

Broader adaptation range into western Oklahoma