A downloadable version [1] of the BBCH Scales, including illustrations, is available from the BBA [2] (Federal Biological Research Centre for Agriculture and Forestry)
Phenological growth stages and BBCH-identification keys
of oilseed rape (canola)
|
Code
| Description
|
Principal growth stage 0: Germination
|
00 | Dry seed
|
01 | Beginning of seed imbibition
|
03 | Seed imbibition complete
|
05 | Radicle emerged from seed
|
07 | Hypocotyl with cotyledons emerged from seed
|
08 | Hypocotyl with cotyledons growing towards soil surface
|
09 | Emergence: cotyledons emerge through soil surface
|
Principal growth stage 1: Leaf development1
|
10 | Cotyledons completely unfolded
|
11 | First leaf unfolded
|
12 | 2 leaves unfolded
|
13 | 3 leaves unfolded
|
1 . | Stages continuous till . . .
|
19 | 9 or more leaves unfolded
|
Principal growth stage 2: Formation of side shoots
|
20 | No side shoots
|
21 | Beginning of side shoot development: first side shoot detectable
|
22 | 2 side shoots detectable
|
23 | 3 side shoots detectable
|
2 . | Stages continuous till . . .
|
29 | End of side shoot development: 9 or more side shoots detectable
|
Principal growth stage 3: Stem elongation2
|
30 | Beginning of stem elongation: no internodes (“rosette”)
|
31 | 1 visibly extended internode
|
32 | 2 visibly extended internodes
|
33 | 3 visibly extended internodes
|
3 . | Stages continuous till . . .
|
39 | 9 or more visibly extended internodes
|
Principal growth stage 5: Inflorescence emergence
|
50 | Flower buds present, still enclosed by leaves
|
51 | Flower buds visible from above (“green bud”)
|
52 | Flower buds free, level with the youngest leaves
|
53 | Flower buds raised above the youngest leaves
|
55 | Individual flower buds (main inflorescence) visible but still closed
|
57 | Individual flower buds (secondary inflorescences) visible but still closed
|
59 | First petals visible, flower buds still closed (“yellow bud”)
|
Principal growth stage 6: Flowering
|
60 | First flowers open
|
61 | 10% of flowers on main raceme open, main raceme elongating
|
62 | 20% of flowers on main raceme open
|
63 | 30% of flowers on main raceme open
|
64 | 40% of flowers on main raceme open
|
65 | Full flowering: 50% flowers on main raceme open, older petals falling
|
67 | Flowering declining: majority of petals fallen
|
69 | End of flowering
|
Principal growth stage 7: Development of fruit
|
71 | 10% of pods have reached final size
|
72 | 20% of pods have reached final size
|
73 | 30% of pods have reached final size
|
74 | 40% of pods have reached final size
|
75 | 50% of pods have reached final size
|
76 | 60% of pods have reached final size
|
77 | 70% of pods have reached final size
|
78 | 80% of pods have reached final size
|
79 | Nearly all pods have reached final size
|
Principal growth stage 8: Ripening
|
80 | Beginning of ripening: seed green, filling pod cavity
|
81 | 10% of pods ripe, seeds dark and hard
|
82 | 20% of pods ripe, seeds dark and hard
|
83 | 30% of pods ripe, seeds dark and hard
|
84 | 40% of pods ripe, seeds dark and hard
|
85 | 50% of pods ripe, seeds dark and hard
|
86 | 60% of pods ripe, seeds dark and hard
|
87 | 70% of pods ripe, seeds dark and hard
|
88 | 80% of pods ripe, seeds dark and hard
|
89 | Fully ripe: nearly all pods ripe, seeds dark and hard
|
Principal growth stage 9: Senescence
|
97 | Plant dead and dry
|
99 | Harvested product
|
1 Stem elongation may occur earlier than stage stage 19; in this case continue with stage 20
2 Visibly extended internode n develops between leaf n and leaf n+1