Garden with Insight
Garden with Insight v1.0 Help: floral initiation
Floral initiation is the stage of plant reproductive development in which plant meristems (buds) are converting to the creation of reproductive structures.
For many plants there are distinctly different requirements for the progress of this stage than for the
induction or triggering of flowering that starts the initiation process going. Floral initiation can be
affected by temperature (and by temperature ranges over the day, not just mean temperature), by water stress, and
by nutrient availability (more of some nutrients speeds up floral initiation, and more of other nutrients
slows it down).
In this simulation floral initiation is modeled using the most common determinator of the speed of floral
initiation -- temperature. Thermal units are accumulated towards a
floral initiation threshold (a parameter) in the same way photothermal
units are accumulated for floral induction. Note that we use the same
minimum, optimal and maximum temperatures for floral induction and
initiation; this simplification is unrealistic but qualitatively reasonable. Once the floral initiation threshold is reached the
plant moves into the phase of allocation of resources to floral structures
(inflorescences, flowers and fruits).
Note that we do not simulate pollination; we assume pollination to be perfect in each plant.
How it works: