Check product labels and apply as soon as possible. Nitrogen applications at Feekes 8.0 and later can enhance grain protein levels but are questionable with respect to added yield. Stage 9.0 begins when the flag leaf is fully emerged from the whorl. After flag leaf emergence, army worms can seriously damage yield potential. At this stage, the head is fully developed and can be easily seen in the swollen section of the leaf sheath below the flag leaf.
Wheat is self-pollinating.
Most florets are pollinated before anthers are extruded. Although tillers have developed over a several week period, bloom in a given wheat plant is usually complete four to five days after heading. The grain-fill period of wheat varies somewhat, depending upon climate. After Feekes Stage 10.5.3, remaining growth stages refer to ripeness or maturity of the kernel. Click here to view the PDF of this Fact Sheet.