Abstract: The pruning function and the query module are introduced into the L-systems. An L-system model is built on the change of internal resources allocation after plant pruning. Then by emulation experiment a two-dimensional model of plant abstract development process and a three-dimensional model of plant response to pruning are implemented. The experiment shows that this modeling method could make a better simulation on the plant growth change process after pruning. It could also give some reference to research on the virtual agriculture and forestry and virtual gardening.

Key words: computer application, plant modeling, L-system, query module, pruning function