The time required for 50% of the leaves to float represents the Effective Time (ET50). ET 50 can be determined by graphing the number of disks floating over time, as shown in Figure 3.

Step 1 - we need to calculate the mean number of leaves floating per minute. • Now that you have the mean, let’s graph the results. • What type of graph do we need? Why? • NOTE: these are …

2019年9月2日 · By extrapolating from the graph, the point where 50% of the disks are floating is at about 11.3 minutes. Using the 50% point provides a greater degree of reliability and …

2022年9月12日 · The ET50 is the time it takes for 50% of the leaf disks to float and is a good indicator of the rate of photosynthesis. It was hypothesized that if the concentration of carbon …

graph of the Rate of Photosynthesis using: your chosen variable (x-axis) vs 1/ET50 (y-axis, see p. 69). [You would plot the inverse of the ET50 in order to create a more traditional direct …

A term coined by G. L Steucek and R. J Hill (1985) for this relationship is ET50, the estimated time for 50% of the disks to rise. That is, rate is a change in a variable over time. The time …

2024年8月14日 · To calculate the ET50, divide the total time by the total percent of leaf disks float. How to Calculate ET50? The following steps outline how to calculate the ET50. First, …

This creates a seemingly backward graph when plotting your ET50 data across treatments, as shown in Figure 8a. To correct this representation and make a graph that shows increasing …

1) To design and conduct an experiment to explore factors that affect photosynthesis. capture and stores of energy, and the diffusion of gases across membranes. Experimental Question: What …

Repeated testing of this procedure has shown that the point at which 50% of the disks are floating (ET50) is a reliable and repeatable point of reference. Graph your data for the experiment.