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BBCH-scale (grape)




The BBCH-scale (grape) identifies the phenological development stages of grapes (Vitis vinifera ssp. vinifera). It is a plant species specific version of the BBCH-scale.

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 grape
Code Description
Principal growth stage 0: Sprouting/Bud development
00 Dormancy: winter buds pointed to rounded, light or dark brown according to cultivar; bud scales more or less closed according to cultivar
01 Beginning of bud swelling: buds begin to expand inside the bud scales
03 End of bud swelling: buds swollen, but not green
05 “Wool stage”: brown wool clearly visible
07 Beginning of bud burst: green shoot tips just visible
08 Bud burst: green shoot tips clearly visible
Principal growth stage 1: Leaf development
11 First leaf unfolded and spread away from shoot
12 2nd leaves unfolded
13 3rd leaves unfolded
1 . Stages continuous till . . .
19 9 or more leaves unfolded
Principal growth stage 5: Inflorescence emerge
53 Inflorescences clearly visible
55 Inflorescences swelling, flowers closely pressed together
57 Inflorescences fully developed; flowers separating
Principal growth stage 6: Flowering
60 First flowerhoods detached from the receptacle
61 Beginning of flowering: 10% of flowerhoods fallen
62 20% of flowerhoods fallen
63 Early flowering: 30% of flowerhoods fallen
64 40% of flowerhoods fallen
65 Full flowering: 50% of flowerhoods fallen
66 60% of flowerhoods fallen
67 70% of flowerhoods fallen
68 80% of flowerhoods fallen
69 End of flowering
Principal growth stage 7: Development of fruits
71 Fruit set: young fruits begin to swell, remains of flowers lost
73 Berries groat-sized, bunches begin to hang
75 Berries pea-sized, bunches hang
77 Berries beginning to touch
79 Majority of berries touching
Principal growth stage 8: Ripening of berries
81 Beginning of ripening: berries begin to develop variety-specific colour
83 Berries developing colour
85 Softening of berries
89 Berries ripe for harvest
Principal growth stage 9: Senescence
91 After harvest; end of wood maturation
92 Beginning of leaf discolouration
93 Beginning of leaf-fall
95 50% of leaves fallen
97 End of leaf-fall
99 Harvested product

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.

 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "BBCH-scale_(grape)". A list of authors is available in Wikipedia.
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