A model of the partitioning of new above-ground dry matter

Abstract

A model for the partitioning of new above-ground dry matter of a vegetative dicotyledonous plant is developed. It assumes two distinct functional components of the stem tissues. One, the primary stem tissue, includes physiologically active tissues such as xylem, phloem and meristematic tissues, and the other, secondary stem tissue, includes the main mechanical structures. The model is used to examine the partitioning of dry matter between leaf and stem tissues, and its behavour is compared with experimental observations. © 1988 Annals of Botany Company.