Some research has shown that elevated CO2 concentrations may determine plant productivity by affecting plant physiological processes, and ecosystem structure and functions such as photosynthesis ( Xu et al. 1987). However, other researchers have conducted experiments that found other results. Two plants, …show more content…
This is what we intend to do in our experiment to fill in the knowledge gaps concerning the correlation between the photosynthesis and respiration rates to the amount of CO2 a plant has been grown in.
The objective of our research was to determine how the rate of photosynthesis and respiration are affected by growing Brassica rapa FAST PLANTS in high and low CO2 concentrations. I hypothesized that the rate of photosynthesis and the rate of respiration will not have a significant difference in correlation to the concentration of CO2 that B. rapa was grown in because the stomatal density of the same plants grown in high and low CO2 concentrations did not have a significant difference (VanLaan et al. 2016 …show more content…
The low CO2 concentration had a higher photosynthesis rate of less than 2% difference than the higher CO2 photosynthesis rate (Figure 1), (t=.059, df=88, P=0.953). The difference in means of the rates of respiration of B. rapa plants grown in high and low CO2 concentrations was so small that it could be due to sampling error alone. The low CO2 had a lower rate of respiration of less than 13% difference (Figure 1), (t=0.458, df=88, P=0.648).
Discussion
The purpose of our experiment was to compare the rate of photosynthesis and respiration of Brassica rapa in ambient carbon dioxide concentrations, but grown in variable CO2 concentrations. The results we concurred from this experiment were the same as we had hypothesized, the variable growth conditions of the B. rapa plants had no significant difference on the rates of respiration and