The Effect of Salt Concentration on Grass Growth

all treatments contain the same type of soil, are planted in the same size of pan, are exposed to the same amount of sunlight, and are maintained at the same temperature throughout the course of the experiment. ON THE TEST there will be a number of related questions about this section not just the question shown below.

In the dishes, I dropped the appropriate treatment into the center, where the marks were made. Next, I closed the petri dishes, taped them up, and let them sit at room temperature for a week. Then I opened them up to take two measurements. The first measurement was the number of seeds germinated. The second measurement was to measure the seedling lengths.

The hypothesis behind this experiment is that the Gibberellic acid has a positive growth effect on the plant and causes it grow larger in height.

For my seed experiment I had decided to see what the effect of sprinkling salt on a radish seed would be. So for my control group I had set six (6) cherry radish seeds in between a damp paper towel and then closed it within a Ziploc bag. For my experimental I had set it up the exact same way as the control group but I would sprinkle salt on top of seeds before I zipped up the baggie. I sprinkled the salt on the experimental seeds and dampened the paper towel once every day. Each bag was stored in the light and at room temperature (~70° F.)

The purpose of this experiment is to observe the effects of Sodium Chloride (NaCl) on the germination rate of Wisconsin Fast Plants.

2. What do you think would happen if you watered your houseplants with salt water?

The results obtained are non-conclusive. More research is necessary in order to fully understand the effects of Nitrogen in the development of Fast Plants seeds and the soil. It is recommended that original is repeated. However, only one fertilizer should be added per quad, rather than mixing the fertilizer used for the control with the fertilizer being studied. For future studies it is also recommended to maintain a record of the pH of the soils before, during, and after the experiment in order to understand the impact of fertilizers on the

Factors that may have affected the accuracy of the readings, may have been that the observations and recordings of all abiotic data was collected from one area rather than multiple sites within the area. The students involved in data collection, had no previous experience in the use of certain equipment such as the soil thermometer and refractometer, therefore, results may have varied significantly due to inadequate/improper use of equipment.

If saltwater is applied to a plant, the plant would shrivel up and die. This is a result of the water moving out of the cells in order to try to balance the concentration of solute compared to inside the cell. The water movement out of the cell would cause the cell to shrink and the lack of water would eventually cause the plant to die.

51) A botanist wanted to see if a new strain of corn could germinate in soil that was too salty for regular corn. She conducted a study on the germination success of seeds from the new strain that were exposed to various levels of salty soil, from zero to normal (100mg/L) to high (200 mg/L) to very high (400 mg/L) to normally lethal (800 mg/L)

Plants need specific conditions to grow. In this experiment plant will be put in hypertonic solutions. Three out of the six plant will be watered with a salt and water solutions. Watering the plants in the solution will place them in a hypertonic solutions, making the water leave the cells to diffuse (in this case) the salt. “Photosynthesis is the process in which plants use water, carbon dioxide, and light energy to make glucose and oxygen.”(PHOTOSYNTHESIS). If water is needed for

The hypothesis that was being tested was if the salt facility was leaking salt, then the crops will not grow. The hypothesis was supported by the data gathered because it proves that the seeds in the sites located near the salt facility did not grow at all, but the other seeds did when they were not affected. Site B and D’s seeds did not even sprout and they were located either by the salt facility or slightly downstream. Site Cand E was farther down the river and was not affected by the salt. Site A was completely before the storage facility and was not affected in anyway since it was the control of the

The second step of the experiment was to soak the seeds in water overnight. This action was made to prepare the seeds for germination and making them more softer and less rigid. The seeds were placed in a bowl and were covered by tin foil. It was set up on the refrigerator to minimize any outside interference that may come to it. After a full night of absorbing the water, the seeds were ready to start the next stage.

Purpose: To see the effect of an acid introduced during seed germination, on the length of the plant roots. Also shows how salt can affect the seed germination. Acid can be introduced to seeds during germination if there is acid rain. Knowing the results of acid rain on seed germination will help us understand how to grow pants better, and how to have more successful germination. Salt can be introduced into a seed during germination because salt is put on roads and the salt builds up and can contaminate the soil. Knowing the effects of salt on seed germination will allow us to know for sure if the salt is affecting the plants growth or not.

The plants that grow in saline soils have diverse ionic compositions and a range in concentrations of dissolved salts (Volkmar et al., 1998). These concentrations fluctuate because of changes in water source, drainage, evapo-transpiration, and solute availability (Volkmar et al., 1998). Due to these varying conditions, plant growth depends on a supply of inorganic nutrients, and this level of nutrients varies in time and space (Maathius and Amtmann, 1999). Either extreme condition concerning nutrients results in deficiency or toxicity in plants, and this is demonstrated by salt tolerance (Maathius and Amtmann, 1999). These conditions vary according to the plant species and growth conditions. Little is known about the genetic basis for diversity of salt tolerance in plants, and this could be partly explained through the definitions given for salinity.