Following the introduction of the general BBCH scale, the specific BBCH scale for the peanut plant is presented providing crop-specific descriptions and detailed assessment instructions.The phenological development process of the peanut plant is described by periods (principal growth stages) and steps (secondary growth stages). A 2-digit decimal code suitable for data processing in crop production experiments is assigned to each developmental step.

Following the introduction of the general BBCH scale, the specific BBCH scale for the upland cotton plant is presented which provides crop-specific descriptions and detailed assessment instructions.The development process of the plant is described by periods (principal growth stages) and steps (secondary growth stages).A 2-digit decimal code suitable for data processing in crop production experiments is assigned to each step of development.

SummaryThe extended BBCH scale is a system for a uniform coding of phenologicaliy similar growth stages of all mono‐ and dicotyledonous plant species, based on the well known cereal code of Zadoks et al. (1974). The BBCH key is it decimal system, with 10 principal growth stages and up to 10 secondary ones, starting with seed germination, sprouting of perennials, progressing through leaf production and extension growth to flowering and senescence. Therefore, it can also be a suitable tool to define the growth stages of different weed species. To encourage further use of the BBCH scale in weed research, definitions of the codes have been more closely adapted to weeds. Possible problems are discussed and guidelines for correct use are given.

Following the introduction of the general BBCH scale, the specific BBCH scale for the soybean plant is presented, with crop-specific descriptions and detailed assessment instructions. The phenological development process of the plant is described in terms of periods (principal growth stages) and steps (secondary growth stages). A two-digit and a three-digit decimal code suitable for data processing in crop production experiments is assigned to each developmental step.

Mit den ausfuhrlichen kulturspezifischen Beschreibungen sind die speziellen Skalen fur Zwiebel-, Wurzel-, Knollen-, Blattgemuse und sonstige Kohlarten als Ergunzung zur ,,Allgemeinen BBCH-Skala zu verstehen. Die phanologische Entwicklung wird in Entwicklungsphasen (Makrostadien) unterteilt, und jede Phase in starker differenzierte Entwicklungsschritte (Mikrostadien). Jedem Entwicklungsschritt wird ein zweistelliger Code zugeordnet. Zur genaueren Beschreibung spezifischer Stadien wird uber die Einfuhrung der Mesostadien, die als weitere Ordnungszahlen die Makrostadien unterteilen, eine Alternative angeboten.Phenological growth stages of vegetable crops.I. Bulb vegetables, root vegetables and green vegetablesThe detailed crop specific description of the phenological growth stages of several vegetable crops are supplementary of the general BBCH scale. The phenological development of the vegetable is divided into growth phases (principal growth stages), each phase is subdivided into growth steps (secondary growth stages). A two-digit decimal code is assigned to each growth stage. For a more detailed description of specific stages a three-digit code is offered as an alternative. The insertion of the third digit allows to further divide principal growth stages. The deriving intervals are named mesostages, they cover a range of secondary growth stages.

Mit den ausfuhrlichen kulturspezifischen Beschreibungen sind die speziellen Skalen fur Fruchtgemuse und Hulsenfruchte als Erganzung zur Allgemeinen BBCH-Skala zu verstehen. Die phanologische Entwicklung wird in Entwicklungsphasen (Makrostadien) unterteilt und jede Phase in starker differenzierte Entwicklungsschritte (Mikrostadien). Jedem Entwicklungsschritt wird ein zweistelliger Code zugeordnet. Zur genaueren Beschreibung einzelner Entwicklungsabschnitte wird uber die Einfuhrung der Mesostadien, die als weitere Ordnungszahlen die Makrostadien unterteilen, eine Alternative angeboten. Phenological growth stages of vegetable crops II. Fruit vegetables and pulses The detailed crop specific description of the phenological growth stages of vegetable fruits and pulses are supplementary of the general BBCH scale. The phenological development of the vegetable is divided into growth phases (principal growth stages), each phase is subdivided into growth steps (secondary growth stages). A two-digit decimal code is assigned to each growth stage. For a more detailed description of specific stages a three-digit code is offered as an alternative. The insertion of the third digit allows to further divide principal growth stages. The deriving intervals are named mesostages, they cover a range of secondary growth stages.

SummaryA universal scale (to be known as the BBCH scale) using a decimal code for the description of the growth stages of most agricultural crops and weeds is proposed. The scale and codes are based on the well‐known Zadoks code for cereals.Developmentally similar growth stages of different crops are given the same codes. The general scale provides a framework within which more specific scales for individual crops may be constructed. The uniformity of the scale makes it easy to remember and use in agricultural practice and simplifies storage and retrieval in a computer system.A description of the general scale is given followed by specific scales for cereals, rice, maize, oilseed rape, field beans, peas and sunflower. Comparisons with scales currently in use are given where appropriate.

Atraves do novo codigo BBCH, em sua forma generalizada, coloca-se a disposicao uma escala decimal que permite a codificacao uniforme dos estadios de desenvolvimento fenologicamente identicos das plantas, abrangendo as mais variadas especies cultivadas e silvestres. Os macro- e micro-estadios baseiam-se, conscientemente, na escala para cereais de Zadoks et al. (1974), com o objetivo de e evitar maiores alteracoes neste sistema de codificacao ha muito utilizado. Logicamente, este tipo de escala nao permite a reproducao detalhada de todos os estadios especificos de cada tipo de planta, mas elaboraram-se as definicoes de tal maneira generalizadas, que o uso do codigo BBCH sera possivel universalmente. Desta maneira, o codigo BBCH representa uma contribuicao importante para a unificacao e racionalizacao dos sistemas de pesquisa na agricultura. Para facilitar ainda mais a sua aplicabilidade e utilidade na pratica, tenciona-se criar e publicar, em breve, codigos especificos congruentes para as mais importantes culturas e grupos de plantas.