BBCH-scale (maize)

The BBCH-scale (maize) identifies the phenological development stages of maize/corn (Zea mays). It is a plant species specific version of the BBCH-scale.

A downloadable version of the BBCH Scales, including illustrations, is available from the BBA  (Federal Biological Research Centre for Agriculture and Forestry)

1 A leaf may be described as unfolded when its ligule is visible or the tip of next leaf is visible 2 Tillering or stem elongation may occur earlier than stage 19; in this case continue with principal growth stage 3 3 In maize, tassel emergence may occur earlier, in this case continue with principal growth stage 5