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Definition of maize phytomer. A phytomer consists of a leaf (green wireframe), a sheath (yellow wireframe), an internode (red wireframe) enclosed by the sheath, a node and the appendage (blue wireframe) grown on the node. Pj is the ear phytomer, Pj–5 is a nodal root phytomer and Pj+5 is the tassel phytomer.
