Bbch

Compendium of Growth Stage Identification Keys for Mono- and Dicotyledonous Plants
Extended BBCH scale
2nd Edition1997 electronic version elaborated by M. Enz and Ch. Dachler, Novartis

a joint publication of

BBA BSA IGZ IVA AgrEvo BASF Bayer Novartis
ISBN 3-9520749-3-4

The code has been jointly by – German Federal Biological Research Centre for Agriculture and Forestry (BBA) – GermanFederal Office of Plant Varieties (BSA) – German Agrochemical Association (IVA) – Institute for Vegetables and Ornamentals in Grossbeeren/Erfurt, Germany Members of the BBCH working group H. Bleiholder BASF AG Landwirtschaftliche Versuchsstation Carl-Bosch-Strasse 64 D-67117 Limburgerhof Mrs. C. Feller Institut für Gemüse und Zierpflanzenbau Theodor-Echtermeyer-Weg 1 D-14979 Grossbeeren M. HessHoechst Schering AgrEvo GmbH IFD, K 607 D-65926 Frankfurt/Main U. Meier Biologische Bundesanstalt für Land- und Forstwirtschaft Messeweg 11/12 D-38104 Braunschweig T. van den Boom Bayer AG Landwirtschaftszentrum Monheim Alfred-Nobel-Strasse 50 D-51368 Leverkusen-Bayerwerk Peter D. Lancashire Bayer UK Limited Crop Protection Business Group Eastern Way Bury St. Edmunds, Suffolk IP 32 7AH, UK Mrs. L.Buhr Biologische Bundesanstalt für Land- und Forstwirtschaft Stahnsdorfer Damm 81 D-14532 Kleinmachnow H. Hack Industrieverband Agrar (IVA) Theodor-Storm-Weg 2 D-51519 Odenthal Mrs. R. Klose Bundessortenamt Osterfelddamm 80 D-30604 Hannover R. Stauss Ministerium für ländliche Räume, Landwirtschaft, Ernährung und Tourismus des Landes Schleswig-Holstein Düsternbrooker Weg 104 D-24105 Kiel (formerlywith Ciba-Geigy Ltd, CH-4002 Basel) Mrs. E. Weber BASF AG Landwirtschaftliche Versuchsstation Carl-Bosch-Strasse 64 D-67117 Limburgerhof Philipp Munger BASF Corporation Consumer Products & Life Science Division Agricultural Research Station 10181 Avenue 416, Dinuba CA 93618, USA

General Scale Cereals, Rice, Maize Oilseed rape, Faba bean, Sunflower Beta beets Potato Fruits Citrus GrapevineSoybean, Cotton, Peanuts Hop Vegetable crops I Vegetable crops II Weeds BBCH-Publications

The extended BBCH-scale
Hack et al., 1992

The extended BBCH-scale is a system for a uniform coding of phenologically similar growth stages of all mono- and dicotyledonous plant species. It results from teamwork between the German Federal Biological Research Centre for Agriculture and Forestry (BBA), theGerman Federal Office of Plant Varieties (BSA), the German Agrochemical Association (IVA) and the Institute for Vegetables and Ornamentals in Grossbeeren/Erfurt, Germany (IGZ). The decimal code, which is divided into principal and secondary growth stages, is based on the well-known cereal code developed by ZADOKS et al. (1974) in order to avoid major changes from this widely used phenologicalkey.The abbreviation BBCH derives from Biologische Bundesanstalt, Bundessortenamt and CHemical industry. The basic principles of the scale – The general scale forms the framework within which the individual scales are developed. It can also be used for those plant species for which no special scale is currently available. – Similar phenological stages of each plant species are given the same code. –For each code, a description is given, and for some important stages, drawings are included. – For the description of the phenological development stages, clear and easily recognised (external) morphological characte-ristics are used. – Except where stated otherwise, only the development of the main stem is taken into consideration. – The growth stages refer to representative individual plantswithin the crop stand. Crop stand characteristics may also be considered. – Relative values relating to species- and/or variety-specific ultimate sizes are used for the indication of sizes. – The secondary growth stages 0 to 8 correspond to the respective ordinal numbers or percentage values. For example stage 3 could represent: 3rd true leaf, 3rd tiller, 3rd node or 30% of the final length or size...