BRAINCAKEDay Neutral Plants
Day neutral plants are plants whose flowering is not controlled by photoperiod. They flower whatever the lengths of the day and night.
Instead, flowering in day neutral plants is triggered by internal factors, such as the plant reaching a certain age or size (for example a certain number of leaves), or by other environmental factors such as temperature or water availability. Examples include tomatoes, cucumbers and some varieties of strawberry.
Phytochrome is still present in day neutral plants and still controls other responses, such as seed germination and shade avoidance, but the amount of Pfr does not decide when they flower.
Sign in free to see the rest of this lesson, the R.E.C.I.P.E. recall steps and the quiz
BrainCake is free. Make an account in seconds and pick up where this page stops.
Key terms in this lesson
- phytochrome
- A blue-green plant pigment existing in two interconvertible forms sensitive to red and far-red light, controlling responses such as flowering and germination.
More in Chemical Control
- Phytochromes
- Photoperiodism
- Long Day Plants
- Short Day Plants
- Signal Detection
- Discovery
- Photomorphogenesis
- Germination and Photomorphogenesis
All 30 lessons in Chemical Control · All Edexcel A-level Biology topics