Manipulate light to affect plant growth.

Manipulation should include

• measuring light
• differentiating among color, intensity, and duration
• interpreting daily light integral (DLI) measurements
• defining light saturation and light compensation
• acclimatizing plants
• describing how photoperiodism affects growth
• exploring the use of time clock devices set for night-interruption and day-extension lighting
• exploring the use of black cloth for night extension.

Process/Skill Questions:

• How can a grower regulate light intensity and duration?
• What types of plants must be acclimatized?
• How is the use of LED light changing plant growth?