What is the Difference Between Photoperiodism and Phototropism?
🆚 Go to Comparative Table 🆚Photoperiodism and phototropism are two different responses that plants exhibit in response to light. Here are the main differences between them:
- Photoperiodism is the regulation of physiology or development in response to day length, such as the induction of flowering in response to the duration of light and dark periods. It is a process that controls the development and other responses of plants based on the length of day and night.
- Phototropism is a directional response that allows plants to grow towards, or in some cases away from, a source of light. It involves growth towards or away from a light source, with positive phototropism being growth towards a light source and negative phototropism being growth away from a light source.
- Type of Response: Photoperiodism is not a directional movement, while phototropism is a directional movement.
- Function: Photoperiodism is responsible for the induction of flowering in response to the duration of light in a day, while phototropism results in the differential growth in the elongation zone.
Both photoperiodism and phototropism require photoreceptors to accept light stimuli and are orchestrated by hormones.
On this pageWhat is the Difference Between Photoperiodism and Phototropism? Comparative Table: Photoperiodism vs Phototropism
Comparative Table: Photoperiodism vs Phototropism
Photoperiodism and phototropism are two light-induced processes in plants that serve different functions. Here is a table highlighting the differences between the two:
Feature | Phototropism | Photoperiodism |
---|---|---|
Description | Plant growth towards or away from light | Regulation of flowering and other developmental transitions by day/night length |
Directional | Directional response to light | Not directional, but response to the duration of light and dark periods |
Growth | Induces curvature in plant parts | Induces flowering in plants |
Process | Occurs when light falls on the plant from one direction | Relative length of day and night is referred to as the photoperiod |
Hormones | Regulated by Auxin hormones | Not regulated by Auxin hormones |
Photoreceptors | Carotenoids act as photoreceptors | Different photoreceptors are involved |
Both phototropism and photoperiodism are controlled by hormones, and they share a common source of stimulus, which is light. However, they serve different purposes and function through distinct mechanisms.
Read more:
- Phototropism vs Geotropism
- Photoperiodism vs Vernalization
- Positive vs Negative Tropism
- Phototrophs vs Chemotrophs
- Taxis vs Tropism
- Plant Hormones vs Plant Growth Regulators
- Pteridophytes vs Phanerogams
- Thigmotropism vs Thigmonasty
- Vegetative Propagation vs Spore Formation
- Plants Grown in Light vs Dark
- Floriculture vs Horticulture
- Hydroponics vs Aeroponics
- Flowering vs Nonflowering Plants
- Photosynthesis vs Chemosynthesis
- Photosynthesis vs Photorespiration
- Petiole vs Pedicel
- Hydroponics vs Aquaponics
- Hydroponic vs Soil
- Agronomy vs Horticulture