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A uniform decimal code for growth stages of crops and weeds
Author(s) -
LANCASHIRE PETER D.,
BLEIHOLDER H.,
BOOM T. VAN DEN,
LANGELÜDDEKE P.,
STAUSS R.,
WEBER ELFRIEDE,
WITZENBERGER A.
Publication year - 1991
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1991.tb04895.x
Subject(s) - decimal , scale (ratio) , biology , sunflower , code (set theory) , field (mathematics) , agriculture , agronomy , agricultural engineering , computer science , mathematics , arithmetic , programming language , ecology , engineering , physics , set (abstract data type) , quantum mechanics , pure mathematics
Summary A 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.