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BBCH-scale

The BBCH-scale is a used to identify the phenological development stages of a plant. A series of BBCH-scales have been developed for a range of crop species. Phenological development stages of plants are used in a number of scientific disciplines (crop physiology, phytopathology, entomology, plant breeding) and in the agriculture industry (timing of pesticide application, fertization, agricultural insurance). The BBCH-scale uses a decimal code system, which is divided into principal and secondary growth stages, and is based on the cereal code system (Zadoks scale) developed by Zadoks et al. (1974).
Officially, the abbreviation BBCH derives from Biologische Bundesanstalt, Bundessortenamt and CHemical industry. Unofficially, the abbreviation is said to represent the four agrichemical copies (Bayer, BASF, Ciba-Geigy and Hoechst) that sponsored the initial development of the system.
A downloadable version //www.bba.de/veroeff/bbch/bbcheng.pdf of the BBCH Scales, including illustrations, is avaiable from the BBA//www.bba.bund.de/cln 044/nn 813794/EN/Home/homepage node.html nnn=true (Federal Biological Research Centre for Agriculture and Forestry)
Plant or plant group
Bean
Beet
Bulb vegetable
Canola, rapeseed
Cerealss
Citrus
Coffee
Cotton
Cucurbit
Currants
Faba bean
Grape
Hop
Leafy vegetables forming heads
Leafy vegetables not forming heads
Maize, corn
Musacea
Olive
Other brassica vegetables
Pea
Peanut
Pome fruit
Potato
Rice
Root and stem vegetable
Solaneous fruit
Stone fruit
Strawberry
Sunflower
Weed

References