Abstract:A new method was developed to describe and quantify leaf senescence in a field-grown maize canopy with the purpose of future crop modelling. Leaf shape was analysed using the outlines of over 500 adult leaves from plants grown under diverse culture conditions. Leaf width (λ) taken at regular distances from the ligule (L) allowed the development of leaf-shape equations. These are third-degree polynomials. Thus, four leaf measurements are needed for characterizing leaf shape: maximum width (λm), total length (Lt… Show more
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