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Keywords:

  • Glycine max (L.) MERR.;
  • BBCH scale;
  • computer;
  • crop;
  • growth stage key;
  • phenology;
  • soybean

Abstract

Following the introduction of the general BBCH scale, the specific BBCH scale for the soybean plant is presented, with crop-specific descriptions and detailed assessment instructions.

The phenological development process of the plant is described in terms of periods (principal growth stages) and steps (secondary growth stages). A two-digit and a three-digit decimal code suitable for data processing in crop production experiments is assigned to each developmental step.