Introduction
In this experiment, radish seeds were exposed to several different kinds of solutions (salt, soap, vinegar, fertilizer, distilled water) to test how different environmental pollutants affect seed germination. Because there are several kinds of solutions being tested in this experiment, there is more than one hypothesis. The hypotheses for this experiment are as follows: The use of fertilizer solution increases radish seed germination and growth. The use of salt solution decreases radish seed germination and growth. The use of soap solution decreases radish seed germination and growth. The use of vinegar solution decreases radish seed germination and growth. Distilled water increases radish seed germination and growth. My prediction
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Next, place filter paper into the top of the petri dish. Using a pipette, pour 5ml of a solution onto the filter paper, making sure that it is completely soaked. Then, spread 10 radish seeds evenly across the filter paper. Place a second piece of filter paper on top of the seeds in the petri dish. Again, using a pipette, soak the second piece of filter paper with 5ml of a solution. Put the bottom piece of the petri dish onto the top piece. Move the petri dish to an area where it cannot be disturbed. Repeat procedure with each solution. When the procedure has been completed with each solution, stack the petri dishes and tape them together. Let the petri dishes sit for seven days. After seven days, open the petri dishes and examine the seeds. Record the data in a table. Repeat procedure seven …show more content…
The seeds soaked in the salt solution did not have any change in appearance while the seeds exposed to the vinegar solution generally appeared to become darker in color and shriveled. For the 10% fertilizer solution only one replication produced germination (6 out of the 10 seeds in the petri dish germinated). The seeds that did not germinate for the 10% fertilizer solution appeared darker in color. Seeds exposed to distilled water (control) had germination across every replication group and produced some fairly large sprouts. The 10% soap solution seeds also had germination in every replication group, but the size of the sprouts were not as large as the ones in the control group. Figure 1 on page 4 is a table that shows the number of seeds germinated across all replications, including the different concentrations of the solution. Figure 2 on page 4 is a bar graph showing the number of seeds germinated across the replications for the following solutions:10% Salt, 10% Vinegar, 10% Soap, 10% Fertilizer and Distilled
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 experiment was begun by obtaining four 8 oz. Styrofoam cups and punching a hole through the bottom of them. This hole was for water entry or excess water drainage. Moistened soil was packed to the 1/2 full line in the cup along with 3 fertilizer pellets The cups were labeled the following: Rosette-H20, Rosette-GA, Wild-Type-H2O, and Wild-type- GA.(Handout 1) A small wooden applicator stick was obtained a moistened at the tip with water from the petri dish labeled ‘water.’ This was to be able to attract the seed to the applicator in order to place the seed from its original container into
Before, I started I made a prediction for the experiment. I thought the salt on top of the seed and inside the paper towel would soak up water and dehydrate the seed and make the paper towel go dryer
The purpose of this experiment is to observe the effects of Sodium Chloride (NaCl) on the germination rate of Wisconsin Fast Plants.
The results observed do not correspond with the outcome predicted by the hypothesis. Despite the nature of the subjects of the experiments, no substantial growth was observed. Only one seed of the 36 planted germinated, and it could only survive for a period of a week. The one seed that germinated reach a height of 1.2 cm. Table 1 presents the average growth observed in each quad. Each quad had a total of 12 seeds. No seeds were removed during the course of the experiment.
Firstly, for the setup of the experiment, two styrofoam cups were filled with two inches worth of standard, fertilized garden soil, next four seeds from from the garden seed, and the bird seed were placed an inch deep in separate cups. The seeds were blindly labeled, with one being labeled group A and one being labeled group B. This was so as to efficiently conduct a double blind experiment. The seeds were watered with approximately a teaspoon of water per day, and kept in a sunny windowsill. They were left in the windowsill for two weeks, and watered daily.
This then not only prevents the germination of the seed; however, if the plant were to initially germinate, it would be unable to grow any further, as without enough water, photosynthesis, nutrient transfer, or transpiration would be unable to occur; therefore, the plant would be unable to sustain (Growing Anything,
1. Take a paper towel and cut out two circles that are the same size as the base of the petri dishes.
The low-density radish-collard mix pots contained four seeds of radishes and four seeds of collards. The high-density radish-collard pots contained 32 seeds of each species. While our group replicated this 3x2 design four times to total 24 posts, we incorporated the whole class data. Therefore, there were 16 replicates for each treatment. For each pot, we filled soil up until about one inch from the top. We placed the seeds in the pot and piled on around 2 or 3 cm of soil on top. In 3 species levels, seeds were spaced as evenly as possible. In the mixed species pot, the two species were alternated so that each one had the same access to space and nutrients at the other. For each pot, we wrote down our section number, group name, and the contents of the pot. Our group worked at the first bench in the greenhouse and also contained our pots that were spread out evenly in four rows. Our pots stayed in the greenhouse for about five weeks, captured as much sunlight as they could, and got their water source from sprinklers that automatically came on twice a
This experiment began on the first day of lab by planting 12 total seeds from the F1 generation in six individual cells. Potting soil was added until each cell was a little
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)
Take the bowl of water and the paper towels. Submerge your hand in the water, then pat the paper towel with your hand, to dampen the towels before planting but not to the point where the towels are soaked. Do this for each group of seeds soaked in the solutions (5).
"Electromagnetic Radiation." )(7) In this experiment electromagnetic rays from a microwave will be used to determine if this type of radiation affects the germination of radish
The third step that was taken was germinating the seeds. Two sets of paper towels were used to germinate the
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.