June 18, 2021 | By Rupp Seeds
Corn has two distinct phases of growth: vegetative and reproductive. Vegetative stages are identified by the number of collars present on the plant. The leaf collar method is generally used for staging vegetative (V) development of corn. When corn seedlings emerge from the soil and no leaf collars have formed, plants are in the VE stage. When the plant has one visible leaf collar, it is in the V1 stage. The leaf collar is a light-colored band located at the base of an exposed leaf blade, near the spot where the leaf blade meets the stem of the plant. Leaves within the whorl, not fully expanded and with no visible leaf collar, are not included in the staging. For example, a plant with three collars would be called a V3 plant; however, there may be five to six leaves showing on the plant. Corn plants generally develop up to the V18 stage before reaching maximum height at tassel emergence (VT) and transitioning into the reproductive (R) stages of growth.
Learn more about how corn develops at each stage including nutrient, water, and environmental impact in this issue of SeedScoop.
Determining Corn Growth Stages