Biology:BBCH-scale (hop)
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In biology, the BBCH-scale for hops describes the phenological development of Humulus lupulus (hops) using the BBCH-scale. The phenological growth stages and BBCH-identification keys of hops are:
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 |
References
- Rossbauer, G.; L. Buhr; H. Hack; S. Hauptmann; R. Klose; U. Meier; R. Staus; E. Weber (1995). Phänologische Entwicklungsstadien von Kultur-Hopfen (Humulus lupulus L.).. pp. 249–253.
![]() | Original source: https://en.wikipedia.org/wiki/BBCH-scale (hop).
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