Spinach Experiment

The reason for the experiment is to see which color from the light spectrum causes plants to grow faster. The prediction was that read light would cause the most growth in plants and that blue light would result in slower growth. The results did not support the hypothesis. Referring to table, one can see that blue caused both the spinach and radish plant to grow the most and that green light cause the plants to grow less.
Spinach is a long-day plant therefore it was able to grow better under a constant light source. This would have aided in the plant growing faster than other forms of plant species. When experimenting with the spinach plant blue light worked exceedingly well in making the plant grow faster with there being a decent amount of variations between the other colors. Blue light has a higher energy in the color spectrum and chlorophyll a and b absorbeds blue light better. Referring to the table, one can see that green caused the least amount of growth. This is because chlorophyll reflects green light, thus causing plants to take the appearance of being green.
Blue, red, and violet all generated results that were very close to one another. The reason behind this could be that chlorophyll a and b absorb these colors in the same way.
Although this experiment did not support the initial hypo these, there were three other experiments that did. The first experiment was performed by Jessica Whorley and Brent Weaver. Their results showed that blue light caused plants to grow a significantly less than red light. The other two experiments were performed be Warsh et al. 2001 and Bahramzadeh et al. 2001. There results also supported that blue light did not cause plants to grow faster. Both of their experiments showed that red caused more growth in plants than blue lights, but theses experiments were conducted in shorter and fewer