Explain The Correct Water Level For Germination

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

Our data recorded shows that the germinating peas did consume more oxygen than the non-germinating or the glass beads alone and that the cooler temperature did slow down the consumption of oxygen in the germinating peas. In both water baths the atmospheric pressure seemed to increase causing our reading to raise in our glass beads and non-germinating peas. This direct relationship in reading leads us to believe that the oxygen consumption in the non-germinating peas was minimal if any at all.

Germination is the stage of plant growth through which a seed becomes a seedling plant. First, the seed begins to absorb water and the radicle root emerges from the seed coat and into the water. Then, the primary roots grow, the cotyledons move above ground, the stem begins to grow, and leaves develop. The process is complete when the first leaves open and the cotyledons fall off (The Learning Garden 2001).

When planting a seed, many factors allow the seed to grow and become a plant. To sprout from the ground, and to survive, seeds need water, air, and a certain temperature. Seeds can get water, oxygen, and sun by being placed at the proper planting depth. Planting depth is the depth at which a seed is placed in the soil. If a seed is exposed to these important needs, it goes through a process called germination. According to the Wise Geek article, “What is Germination?”, “Germination is a process in which a seed or spore awakens from dormancy and starts to sprout.” (“What is Germination?”).

Add three seeds to the potting mix and cover seeds with little remaining potting mix. After the addition of the potting mix, use a dropper filled with water and water each cell until water drips from the wick. Then place the quads on a watering tray under the fluorescent light bank. Each cell should have an equal distance from the light bank. Quads should be three inches below the fluorescent light; the light should also be left on all day. Make sure all wicks are in contact with the mat that sits on the watering tray. Also watch out for the watering system regularly throughout the experiment. After four to five days record plants in the quads, giving their phenotypes in a table for each cell removed all but the strongest plant.

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.

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).

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.

Most seeds need enough water to moisten them but not soak them. After the seed coat breaks it begins to grow roots and emerges from the ground. If the soil is not moist enough it can deprive the seed from the nutrients needed to grow, which are oxygen, water, and proper temperature. If the soil is too moist it can cause the seed to drown from lack of oxygen and eventually rot. If this happens the seed will not be able to germinate.

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.

Seed should generally not be planted deeper than ½ inch, with smaller-seeded species seeded at ¼ inch. For best results, cultipack after broadcasting seed to assure good seed-to-soil contact.

Both Heat treated groups 1 & 2 had seeds that germinated within 3-4 days of receiving this heat treatment. This averaged the amount of 66.5% of the total seeds germinated. In contrast both Control groups that were not subjected to any form of heat treatment but were still soaked in cold water did not show signs of germination at all within the 10 days time limit.

After reviewing different examples of how pH affects other types of plants and seeds and the scientific information of acid rain, it is now clear that the optimum pH for plant growth is between 5.5 and 7. It is also evident that acidic solution affects the growth rate, in which the pH’s with a low value slow down the growth process. There were a low number of seeds germinated in the pH of 1.65 and 2.11 due to the fact that seeds do not germinate efficiently at acidic solutions. However, they do germinate at solutions of between 5.5 and 6.5. There is a chance that there was a decline at pH 5 (the anomaly) due to the fact that it could