DESCRIPTION OF VEGETATIVE AND REPRODUCTIVE STAGES

Stage no stage title Abbreviated Description
VE Emergence Cotyledons above the soil surface.
VC Cotyledon Unifoliate leaves unrolled sufficiently so the leaf edges are not touching.
V1 First-node Fully developed leaves at unifoliate nodes.
V2 Second-node Fully developed trifoliate leaf at node above the unifoliate nodes.
V3 Third-node Three nodes on the main stem with fully developed leaves beginning with the unifoliate nodes.
V(n) nth-node n number of nodes on the main stem with fully developed leaves beginning with the unifoliate nodes. n can be any number beginning with 1 for V1, first-node stage.
R1 Beginning bloom One open flower at any node on the main stem.
R2 Full bloom Open flower at one of the two uppermost nodes on the main stem with a fully developed leaf.
R3 Beginning pod Pod 3/16 inch (5 mm) long at one of four uppermost nodes on the main stem with a fully developed leaf.
R4 Full pod Pod 3/4 inch (2 cm) long at one of the four uppermost nodes on the main stem with a fully developed leaf
R5 Beginning seed Seed 1/8 inch (3 mm) long in a pod at one of the four upper-most nodes on the main stem with a fully developed leaf.
R6 Full seed Pod containing a green seed that fills the pod cavity at one of the four uppermost nodes on the main stem with a fully developed leaf.
R7 Beginning maturity One normal pod on the main stem that has reached its mature pod color.
R8 Full maturity Ninety-five percent of the pods that have reached their mature pod color. Five to 10 days away from 15% moisture.


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Corn, Soybean, Wheat, and Alfalfa Field GuideBulletin 827