Accelerated Aging Essay

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.

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

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 first lab was conducted to analyze how germination affects the rate of cellular respiration in lima beans compared to dormant seeds. In order to

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.

The third source of uncertainty would be the ruler used to measure the seeds. The uncertainty of the ruler used was ±.05 cm. The next step for this experiment would be to allow more time for the growth of the seeds. Therefore, instead of focusing on the germination of the seeds, one could also study the flowering of the plant and observe whether the value of pH continues to affect the growth. To ensure less uncertainty, the 2 batches of seeds could start on the same day to allow the same allow the same amount of sunlight.

The results collected from this experiment were expected to have most of the seeds sprouting on the first couple of days, and then have this number gradually grow smaller resulting in a graph similar to Fig. 7. However, most of the graphs do not show this trend, and because they do not show any pattern (Look at Fig. 5 for confirmation) it can be concluded that the data collected either does not have enough information, or the experiment is flawed. Because of this Fig. 5 and Fig. 6 are not going to be used. However, since some of the graphs are interpretable they will be used to find as much information as is possible. The results collected do not support the hypothesis. This is proven in almost all the graphs. For example, when looking at fig. 7 it can be seen that 500ppm of Gibberellic Acid did have the most germinations early on, however, these were quickly overtaken by all of the other concentrations. For the hypothesis to correct, it would be expected for the 500ppm of Gibberellic Acid to be noticeably quicker than the other concentrations. Fig. 8 also confirms that 500ppm of Gibberellic Acid does not improve the germination speed of the seeds, as all the concentrations had the same results. When all

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.

To test for differences in seed germination, plant survival to reproduction and pollen viability between

The process of seed germination is dependent on both environmental and internal, hormonal factors. Controlled by a number of mechanisms necessary for growth and development, seed germination rely on interactions between plant hormones, genes, and the environment it is surrounded by (Miransari and Smith, 2013). Just as germination is a complex, developmental phase, so is senescence. Involving both degenerative and nutrient recycling processes, senescence is the final stage of growth and development (Zhang and Zhou, 2012). A kind of programmed cell death, senescence can be induced by both environmental and internal factors (Zhang and Zhou, 2012).

Seed germination is a process that induces the embryonic stage of the seed to mature and give rise to plants that are seen outdoors today. Germination can be defined as, “to cause a seed to begin to grow” according to the Merriam-Webster’s Learners Dictionary. The germination of the seed is a process in which the cells inside the seed increase in size, forcefully pushing out of the seed to become roots and shoots to grow and push out of the seed for elongation to happen. The root of the seed serves many purposes: it transports water and minerals to feed the plant itself and it also serves as reinforcement for the plant by anchoring it to the soil and securing its location. The shoot is everything that ascends from the soil, which also has a very crucial role that plays into a large factor for the feeding and growing of the plant. As the shoot begins to grow, it gives rise to many important factors that allows the plant to grow and nourish it.

The purpose of the project was to determine whether Eucalyptus globulus had an effect on the germination of radish seeds. It was hypothesized that Eucalyptus globulus would have a negative effect on the germination of the seeds and their growth.

Some rapid-maturing cultivars can obtain the 150 mm they need from water retained in soils at the end of the normal growing season

The Seeds of Mung bean, wheat, and silver beet were tested in environments of differing salinities to note down if high salinity environments were worse for the seeds. It was found that generally lower concentrations were better for germination then higher concentrations. Despite this, the hypothesis was not completely supported as in wheat and silver beet the second concentration had a higher rate of germination than the control and in all instances the highest concentration had a higher germination rate than the second highest concentration.

While compared with DI400, DI550-DI700-DI900 increased Tleaf by 2.4, 4.0, and 5.7%, respectively. Hence the relatively increase in Tleaf caused by elevated CO2 concentrations was higher under DI than under RI. Leaf temperature was highly correlated with Tr under most conditions (Pallas et al., 1967). And it was obvious to see that the higher Tr was shown in the markedly lower Tleaf, and vice versa, namely the so called transpiration cooling effect (Pallas et al., 1967). So when the elevated CO2 concentration reduced Tr, the Tleaf increased. Also with decrease in soil water in DI condition, Tr was decreasing; meanwhile, Tleaf rose more remarkable than that only under elevated CO2 conditions. As that Tr cannot be ignored in the changes of Tleaf (Cook et al., 1964; Gates, 1964), and Tr changes was more pronounced under DI, so as to the changes of Tleaf.