BBCH-scale (strawberry)

The BBCH-scale (strawberry) identifies the phenological development stages of strawberry (Fragaria ananassa). It is a plant species specific version of the BBCH-scale.

Phenological growth stages and BBCH-identification keys of strawberry
Code Description
Principal growth stage 0: Sprouting/Bud development
00Dormancy: Leaves prostrate and partly dead
03Main bud swelling
Principal growth stage 1: Leaf development
10First leaf emerging
11First leaf unfolded
122nd leaf unfolded
133rd leaf unfolded1
1 .Stages continuous till ...
199 or more leaves unfolded
Principal growth stage 4: Development of stolons and young plants
41Beginning of stolon (runner) formation: stolons visible (about 2 cm long)
42First daughter plant visible
43Beginning of root development in first daughter plant
45First daughter plant with roots (ready for planting)
49Several daughter plants with roots (ready for planting)
Principal growth stage 5: Inflorescence emergence
55First set flowers at the bottom of the rosette
56Inflorescence elongating
57First flower buds emerged (still closed)
58Early balloon stage: first flowers with petals forming a hollow ball
59Most flowers with petals forming a hollow ball
Principal growth stage 6: Flowering
60First flowers open (primary or A-flower)
61Beginning of flowering: about 10% of flowers open
65Full flowering: secondary (B) and tertiary (C) flowers open,

first petals falling

67Flowers fading: majority of petals fallen
Principal growth stage 7: Development of fruit
71Receptacle protruding from sepal whorl
73Seeds clearly visible on receptacle tissue
Principal growth stage 8: Maturity of fruit
81Beginning of ripening: most fruits white in colour
85First fruits have cultivar-specific colour
87Main harvest: more fruits coloured
89Second harvest: more fruits coloured
Principal growth stage 9: Senescence, beginning of dormancy
91Beginning of axillary bud formation
92New leaves with smaller lamina and shortened stalk visible
93Old leaves dying, young leaves curling; old leaves of cultivarspecific colour
97Old leaves dead

1 Normally after the three leaf stage the bud development occurs in principal growth stage 5.[1]

References

  1. Meier, U.; H. Graf; M. Hess; W. Kennel; R. Klose; D. Mappes; D. Seipp; R. Stauss; J. Streif; T. van den Boom (1994). "Phänologische Entwick-lungsstadien des Kernobstes (Malus domestica Borkh. und Pyrus communis L.), des Steinobstes (Prunus-Arten), der Johannisbeere (Ribes-Arten) und der Erdbeere (Fragaria x ananassa Duch.)". Nachrichtenbl. Deut. Pflanzenschutzd. 46: 141–153.
  • Meier, U., Bleiholder, H., Buhr, L., Feller, C., Hack, H., Heß, M., ... & Weber, E. (2009). The BBCH system to coding the phenological growth stages of plants–history and publications. Journal für Kulturpflanzen, 61(2), 41-52.
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