Across
- 3. – Reduces stem length, increases branching, promotes stem strength, improves leaf and flower color.
- 5. – How we organize light (based on wavelengths).
- 8. – A pigment that uses blue and red light for photosynthesis; appears green.
- 9. – The light we see; a small segment of energy given off by the sun, used in photosynthesis.
- 11. – A pigment that uses blue and green light for photosynthesis; appears purple or red.
- 12. – What wavelengths are measured in.
- 13. – Refers to the strength or amount of light produced; measured in lumens.
- 14. – The process of plants grown in almost complete darkness, characterized by: slower growth, thin leaves, small flowers, dull colors, and stem stretching.
Down
- 1. – Plants unaffected by photoperiod.
- 2. – Begin flowering when nights are more than 12 hours long (night > day).
- 4. – Begin flowering when nights are less than 12 hours long (night < day).
- 6. – Promotes seed germination, seedling growth, stem elongation, and flowering.
- 7. – A plant’s response to light duration/length.
- 10. – Triggers a “shade avoidance” response: stems stretch and weaken, leaves thin and widen, breaks seed dormancy, induces photoperiod responses.
