UV Radiation and Plant Pigmentation

The Objective : The objective was to find out the effects that UV light has on plant growth, development, and pigementation.

Methods/Materials

-Spectrophotometer
-Spinach
-Cuvettes
-DPIP
-Phosphate buffer
-UV Bulb/Lamp
-Distilled water
-Blender
-Cheese Cloth
-Stop watch
-Tissues
-Ice
-Hot plate
-Large Beakers
-Foil

Results

The spinach that was exposed to UV light displayed a lower transmittance than the spinach that was exposed to regular sunlight.

Conclusions/Discussion

My hypothesis was correct because the spinach that was exposed to the UV lamp had a lower transmittance percent compared to the spinach that had been exposed to regular sunlight. This means that the chloroplast became inactive which halts photosynthesis. Therefore, UV light is more degenerative than regular light.

This project tests the effects of UV raditions on plant pigmentation and development.

Science Fair Project done By Lorene J. Chung

 

 

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