The Effect of Light Wavelength and Wind Speed on the Growth of Bean Plants
We studied the effect of light wavelength and wind speed on the growth of bean plants. For light wavelength, we used a high value of 700-nm red light, and a low value of 450-nm blue light. For wind speed we used a high value of 8 mph and a low value of 0 mph. The standard values were 400-700-nm white light and a wind speed of 4 mph. We constructed three boxes and partitioned each box into two sections: a section that was exposed to a fan and an area that was enclosed from most air current. We planted six Blue Lake Bush Bean seeds into each of our growing trays and placed each tray into its respective box. We then covered each box with a different color light filter and proceeded to water the plants every day. We measured the height of each plant for 15 days and then used a two-factor Design of Experiment to statistically analyze the data. We found that both light wavelength and wind speed affected the growth of the bean plants, and that there was a significant interaction between the two variables. We did encounter some error during the procedure of this experiment, but these sources of error had very little effect on our results. In conclusion we found that light wavelength and wind speed both had an effect on the growth of bean plants, and that there was a large interaction between the variables.
Research Done By:
Bob Uhl
Lake Shore
Justin Wideman
Lake Shore
Warren Consolidated Schools