Concepts of modelling carbon allocation among plant organs

摘要: The simulation of carbon allocation among plant organs is one the weakest features crop growth models. This paper briefly discusses five concepts modelling partitioning: 1. Descriptive allometry, proposing a predetermined ratio between (relative) rates organs; 2. Functional equilibrium, an equilibrium root and shoot activity; 3. Canonical modelling, mathematical approach based on only qualitative understanding process; 4. Sink regulation, to be determined by sink strengths different 5. Transport resistance, calculating transport from source through resistance its utilization in organs. These are ordered increasing complexity. Pros cons of the discussed. most appropriate concept will depend species studied aim research.