Growth stage | Code | Description | 0: Sprouting | 00 | Dormancy: rootstock without shoots (uncut) |
01 | Dormancy: rootstock without shoots (cut) |
07 | Rootstock with shoots (uncut) |
08 | Beginning of shoot-growth (rootstock cut) |
09 | Emergence: first shoots emerge at the soil surface |
1: Leaf development | 11 | First pair of leaves unfolded |
12 | 2nd pair of leaves unfolded (beginning of twining) |
13 | 3rd pair of leaves unfolded |
1 . | Stages continuous till . . . |
19 | 9 and more pairs of leaves unfolded |
2: Formation of side shoots | 21 | First pair of side shoots visible |
22 | 2nd pair of side shoots visible |
23 | 3rd pair of side shoots visible |
2 . | Stages continuous till . . . |
29 | Nine and more pairs of side shoots visible (secondary side shoots occur) |
3: Elongation of bines | 31 | Bines have reached 10% of top wire height |
32 | Bines have reached 20% of top wire height |
33 | Bines have reached 30% of top wire height |
3 . | Stages continuous till . . . |
38 | Plants have reached the top wire |
39 | End of bine growth |
5: Inflorescence emergence | 51 | Inflorescence buds visible |
55 | Inflorescence buds enlarged |
6: Flowering | 61 | Beginning of flowering: about 10% of flowers open |
62 | About 20% of flowers open |
63 | About 30% of flowers open |
64 | About 40% of flowers open |
65 | Full flowering: about 50% of flowers open |
66 | About 60% of flowers open |
67 | About 70% of flowers open |
68 | About 80% of flowers open |
69 | End of flowering |
7: Development of cones | 71 | Beginning of cone development: 10% of inflorescences are cones |
75 | Cone development half way: all cones visible, cones soft, stigmas still present |
79 | Cone development complete: nearly all cones have reached full size |
8: Maturity of cones | 81 | Beginning of maturity: 10% of cones are compact |
82 | 20% of cones are compact |
83 | 30% of cones are compact |
84 | 40% of cones are compact |
85 | Advanced maturity: 50% of cones are compact |
86 | 60% of cones are compact |
87 | 70% of cones are compact |
88 | 80% of cones are compact |
89 | Cones ripe for picking: cones closed; lupulin golden; aroma potential fully developed |
9: Senescence, entry into dormancy | 92 | Overripeness: cones yellow-brown discoloured, aroma deterioration |
97 | Dormancy: leaves and stems dead |