Germination Lab

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?”).

There are many ways to obtain seeds to grow flowers in the springtime, but not all seeds were created equal. Sunflower seeds, for example, can be bought at a garden store in a packet for $1.5 dollars per 6 gram packet, but they can also be found in bird seed for $3.53 dollars per 10 pounds. This experiment intends to find if the germination of a store bought packet of sunflower seeds matches the germination rate of sunflower seeds obtained from a bag of bird seed. While both seeds will germinate, it is believed that the bird seed will not be as robust in growth as the garden seed, due to the fact that the garden seed is made to be grown, while the bird seed is made for consumption.

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.

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,

Two seeds were planted in the same garden. The arid soil gave the seeds little

Conclusion: I decided to record 4 days of the experiment (for time reasons) and base observations off of the results I viewed during those four days to help me determine what the outcome would be in a week’s time. The results I found were that it took three days to notice the beginning of bean germination when the beans were placed outside in the sunlight, and 4 days to notice a little stem when the beans were placed in room temperature in sunlight. Throughout the four-day

In this experiment, my hypothesis was not supported. The hypothesis stated that acid rain would decrease the rate at which seeds germinate. The hypothesis is rejected due to the data which shows that the average sprout length of the control group is shorter than the experimental group. Although the experimental group grew taller and faster, the control group looked healthier. The control group’s sprouts were greener and stood up taller while the experimental group’s sprouts were a very milky-white green and leaned over some.

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.

For a seed to germinate, it needs to take in water, the water makes the embyo larger and longer. In seeds there are protein storages, like globulins, and as the seed gets older, more of these protein storages are produced. Slowed germination rate (Trials 1 and 2, before at 24 hours for Willow) may have be caused by the salinity (saltiness), as this can alter the amount of nitrogen in the seed (Miransari, M, 2013). ABA also inhibits germination, and for germination to occur there needs to be a decrease in the amount of ABA during the stage of imbibition (the absorption of solvent by a gel), and phase II. The inhibition of germination caused by ABA, can be reversed by gibberellins and ethylene (Weithrecht, K & Muller, K & Leubner-Metzger, G, 2011).

Some factors that affect seed germination are temperature, light and moisture. Most seeds tend to germinate quicker with the presence of water. In my experiment, Pot B did not germinate at the same time as Pot A. This was most likely because Pot B was exposed to more sunlight causing the water to evaporate and leaving the seeds with little

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.