Phase 1 | P-1 | (Starting with sowing, sprouting till formation of cotyledonous leaves and, probably, two or three full-fledged leaves; soil surface is not covered or slightly covered with plants (canopy is less than 10%) |
Phase 2 | P-2 | Crop development stage (from the beginning of quick growth till blossoming, when development rate slows down; by the end of the stage canopy is 70% - 80%) |
Phase 3 | P-3 | Flowering stage or mid-season stage (includes the main period of blossoming and early phase of seed and fruit formation; from effective canopy 70% - 80% till start of fading and falling off |
Phase 4 | P-4 | Ripening stage (when crop develops, ripens and harvest is collected) |