2. Photosynthetic saturation is the maximum rate of photosynthesis. What value of light intensity produced photosynthetic saturation in corn leaves?

Since this is not my area of expertise, I searched Google under the key words "photosynthetic saturation in corn leaves" to get this:

http://www.google.com/search?client=safari&rls=en&q=photosynthetic+saturation+in+corn+leaves&ie=UTF-8&oe=UTF-8

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.

To determine the value of light intensity that produces photosynthetic saturation in corn leaves, you would typically need experimental data. This data can be collected using a photosynthesis measurement instrument such as a photosynthesis-irradiance (P-I) curve system.

To conduct an experiment to find the light intensity that causes photosynthetic saturation in corn leaves, you can follow these steps:

1. Set up a controlled environment: Create a suitable growth chamber or greenhouse with consistent temperature, humidity, and carbon dioxide levels.
2. Prepare corn leaves: Choose healthy corn leaves and remove them from the plant. Make sure to handle the leaves carefully to prevent damage.
3. Acclimate the leaves: Place the leaves in a dark environment for a period of time to ensure they are in a light-adapted state.
4. Set up the P-I curve system: This usually involves using a fluorometer or an oxygen electrode connected to a light source. The instrument will measure the photosynthetic rate under different light intensities.
5. Start with low light intensity: Begin measuring the photosynthetic rate at a relatively low light intensity. Increase the light intensity step by step, allowing the corn leaves to acclimate to each level before taking measurements.
6. Measure the photosynthetic rate: At each light intensity, record the photosynthetic rate. The photosynthetic rate is typically estimated by measuring the oxygen evolution or the electron transport rate using appropriate instruments.
7. Continue increasing light intensity: Gradually increase the light intensity until a maximum photosynthetic rate or saturation is reached. This is characterized by a plateau in the photosynthetic rate, indicating that the leaves are unable to utilize more light energy for photosynthesis.
8. Analyze the data: Plot the photosynthetic rate against the light intensity. Identify the light intensity that corresponds to the point of photosynthetic saturation. This is the value you are looking for.

It is important to note that the precise light intensity required for photosynthetic saturation in corn leaves may vary depending on various factors such as the specific corn variety, leaf age, and environmental conditions. Therefore, conducting careful experiments under controlled conditions is necessary to obtain accurate results.