In biology, the BBCH-scale for grapes describes the phenological development of grapes using the BBCH-scale.

The phenological growth stages and BBCH-identification keys of grapes are:

Growth stageCodeDescription
0: Sprouting/Bud development
00Dormancy: winter buds pointed to rounded, light or dark brown according to cultivar; bud scales more or less closed according to cultivar
01Beginning of bud swelling: buds begin to expand inside the bud scales
03End of bud swelling: buds swollen, but not green
05“Wool stage”: brown wool clearly visible
07Beginning of bud burst: green shoot tips just visible
09Bud burst: green shoot tips clearly visible
1: Leaf development 11First leaf unfolded and spread away from shoot
122nd leaves unfolded
133rd leaves unfolded
1 .Stages continuous till ...
199 or more leaves unfolded
5: Inflorescence emerge 53Inflorescences clearly visible
55Inflorescences swelling, flowers closely pressed together
57Inflorescences fully developed; flowers separating
6: Flowering 60First flowerhoods detached from the receptacle
61Beginning of flowering: 10% of flowerhoods fallen
6220% of flowerhoods fallen
63Early flowering: 30% of flowerhoods fallen
6440% of flowerhoods fallen
65Full flowering: 50% of flowerhoods fallen
6660% of flowerhoods fallen
6770% of flowerhoods fallen
6880% of flowerhoods fallen
69End of flowering
7: Development of fruits 71Fruit set: young fruits begin to swell, remains of flowers lost
73Berries groat-sized, bunches begin to hang
75Berries pea-sized, bunches hang
77Berries beginning to touch
79Majority of berries touching
8: Ripening of berries 81Beginning of ripening: berries begin to develop variety-specific colour
83Berries developing colour
85Softening of berries
89Berries ripe for harvest
9: Senescence 91After harvest; end of wood maturation
92Beginning of leaf discolouration
93Beginning of leaf-fall
9550% of leaves fallen
97End of leaf-fall
99Harvested product

See also

References

  • Lorenz, D.H.; K.W. Eichhorn; H. Bleiholder; R. Klose; U. Meier; E. Weber (1994). "Phänologische Entwicklungsstadien der Weinrebe (Vitis vinifera L. ssp. vinifera)". Vitic. Enol. Sci. 49: 66–70.
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