Effects of different colors of light on the photosynthesis rate.
Physiological factors that affect photosynthetic rates
Our results indicated that photosynthesis occurred fastest at 100 watts for both plants. This was inconsistent with our hypothesis. There were several possible problems with our experiment. We only ran one trial for each plant under the various light intensities due to time constraints. This made it impossible for us to run a statistical test. If more trials were available, we could have run a linear regression analysis to see if there was a significant linear correlation between intensity of light and rate of photosynthesis. Another problem is that 100 watts may have not been intense enough. The slope of the shade plant seemed to be decreasing as intensity increased, and the slope of the sun tolerant plant seemed to be increasing. If we had used higher intensities of light, perhaps these trends in the slope would have continued and the shade plant's slope would have started to decrease, allowing us to fail to reject our hypothesis. The spike in photosynthesis for the shade tolerant plant could indicate that they are not accustomed to sudden changes in light intensity. The slow rise in the photosynthesis rate for the sun tolerant plant could indicate that it is more equipped to maintain homeostasis in sudden intensity changes.
04/01/2018 · Measuring the rate of photosynthesis ..
Effect of different colors of light on the rate of photosynthesisThe effect of different lights on plant growth: incandescent light, fluorescent light, sunlight and black light.
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Under these conditions, the light reactions of photosynthesis are maximized,and photosynthetic rate is limited either by the Supply of CO2to supply the photosynthetic dark reactions, or by the turnover rate ofthe photosynthetic enzymes.
How do C3,C4, and CAM photosynthesis compare? | …
At higherlight intensities there is less of an increase In photosynthetic rate perunit increase in light intensity, and eventually photosynthesis reacheslight saturation at the highest light intensities used in the experiment.
Photosynthesis Lab | Photosynthesis | Light
This is achieved by measuring the gradient of the O2response which, when the X axis of your graphs is presented in min, willgive a rate in % O2 per min.