Class 11 Botany simulations · Plant Growth and Development

Photoperiodism and flowering

Set the day length and see whether a short-day, long-day or day-neutral plant flowers.

Open the simulation

What to notice

Leaves perceive the photoperiod; the flowering signal travels to the shoot apex.

Key relation

Short-day: flowers if day < critical length ; long-day: if day > critical length

Try this

Set the critical length to 12 h and slowly change the day length for each plant type.

What you can change

• Plant type: choose Short-day plant, Long-day plant, Day-neutral plant
• Day length: 6 to 18 h
• Critical day length: 10 to 14 h

More in Plant Growth and Development

• Arithmetic, geometric and sigmoid growth
• Phototropism and auxin

See all Class 11 Botany simulations or every Physica simulation.