Garden with Insight v1.0 Help: Plant params flowering group
Heat unit index when vegetative phase ends: The heat unit index at which the purely vegetative phase of growth ends and
floral induction is possible.
Heat unit index when reproductive allocation started: The heat unit index at which allocation of
new biomass (dry weight) to reproductive plant parts (reproductive meristems, inflorescences, flowers, and
fruits) began (if it has begun).
Floral induction minimum temperature: The lowest
temperature at which photothermal units are accumulated for floral induction. If the air temperature is
below this number, flowering is delayed.
Floral induction optimal temperature: The best temperature
for accumulation of floral induction photothermal units. Flowering will occur the fastest (according to
temperature) if the air temperature is at this number.
Floral induction maximum temperature: The highest temperature at which photothermal units
are accumulated for floral induction. If the air temperature is above this number, flowering is delayed.
S Curve - effect of hours of darkness on fraction of floral induction day: Fraction of floral induction day (Y)
accumulated based on the hours of darkness (X) in that day. For short-day (long-night) plants the curve
increases; for long-day (short-night) plants the curve decreases; for day-neutral plants the curve is flat.
Floral induction photothermal units required: The number of photothermal units (accumulated
days of optimal temperature and photoperiod) required to trigger (induce) the reproductive state. Days
accumulate according to the optimal temperature and the floral induction S Curve for photoperiod.
Floral initiation thermal units required: The number of thermal units (accumulated days of
optimal temperature) required to carry out the switch from vegetative to reproductive mode and the
creation of reproductive meristems. The optimal temperature for
growth is used for the optimal temperature.
Biomass allocation to flowers and fruits at maturity, by weight: The fraction by weight of the total plant
biomass (dry weight) that the plant will attempt to allocate to reproductive structures (inflorescences, flowers and fruits) at maturity, if flowering occurs.
Fruit biomass daily decay fraction at plant maturity, by
weight: Amount of the plant's total fruit biomass (dry weight) decaying each day at maturity. The
daily decay fraction rises linearly from zero (at halfway between the first reproductive allocation and plant
maturity) to this daily fraction (at maturity).
Vernalization requirement: Whether this plant's
flowering is accelerated ('speeds things up') or allowed ('necessary') by a period of time when air
temperatures are cold. The second-year flowering of many biennial plants such as onions and carrots
depends on vernalization.
Vernalization minimum temperature: The highest temperature at which vernalization (facilitation of flowering by cold temperatures) occurs. Typically around
zero degrees C.
Vernalization optimal temperature: The best temperature for vernalization (facilitation of
flowering by cold temperatures). Typically around two or three degrees C.
Vernalization maximum temperature: The highest temperature at which vernalization
(facilitation of flowering by cold temperatures) occurs. Typically around five degrees C.
Vernalization thermal units required: Thermal days required to complete vernalization
(facilitation of flowering by cold temperatures). Since one thermal day represents one full day at the
optimal vernalization temperature, the fastest vernalization needs this number of days to complete.
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