The Effect Of Gibberellic Acid On The Germination Of Seeds

In this experiment we are testing the effect of fertilizer on the speed of plant growth. We prepared a 4 quad cell, 1 control group and 3 experimental groups. So, we had one with no fertilizer, one with three seeds of fertilizer, one with six seeds of fertilizer, and lastly, one with nine seeds of fertilizer. The plants that we grew were called Wisconsin Fast Plants, members of the crucifer family. These plants are small and easy to grow, but for optimal growth they require continuous fertilizer, water, fluorescent light, and temperature between 18 degrees Celsius and 26 degrees Celsius 24 hours a day. Fertilizers are substances that are put into soils to increase the growth of the plant. There are two different types of fertilizers, synthetic

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.

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.

I predict the seeds grown in the light will germinate twice as much as the ones grown in the dark.

We have learned in classes that germination is different for all plants and I want to work with plants

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.

In my experiment, there are many different variables that are being altered and controlled. My independent variable is the type of coffee used including, light, medium, and dark roast, decaffeinated, and gluten free. Following that, my dependent variable is the amount of plant growth. The type of seeds, coffee maker, pot and soil will all be controlled throughout the experiment, as well as the location of growth, and the ratio of water to coffee added daily. I hypothesised that the coffee with the highest pH and most caffeine, or light roast, will display the most growth. This is due to the fact that caffeine contains ingredients like potassium and phosphorous, which are known to enhance plant growth. In fact ,”Many consumers assume that the

We hypothesized that at Miracle-Gro concentration 1, this solution will be the most effective towards the rate of growth because at pure solution, the concentration is so high that the effect will occur sooner than those of lower concentrations, and speed up the life span to expiry of all the plants in the single solution concentration. Because we accept as true, that pure concentration will have the highest rate of growth, we can eliminate this concentration from our second question. We have come up with the presumption that at the concentration of 0.1 solution will allow the plants to be the most successful for the longest period because concentrations less than 0.1 would not appear to have any effect. There would be limiting nutrients within the solution and therefore would have a yield due to the lack of Miracle-Gro

The seed membrane is permeable to water, which is necessary for a seed to germinate. Hydrolysis of polysaccharides in seeds to simple sugars for the germination process is crucial. The permeable seed membrane allows water to enter the seed. For that, “Acidic conditions affect the permeability of seed membrane, thereby, reducing the chances of germination process (Lee 435)”.

The hypothesis that is looking to be proved, if a bean plant is exposed to eight hours of natural light per day, then it’s rate of growth will be higher than a bean plant exposed to eight hours of artificial sunlight per day.

This lab was a success, because it shows what happens with acid rain, and its effect on seed germination. The seeds will actually grow

Allelopathic chemicals can also exist in soil, affecting the surround plants and those planted afterwards. Studies have shown that Leucaena leucocephala, a tree promoted for water conservation and revegetation, contains a toxic amino acid in its leaves and foliage that prevents the growth of other trees but not its own seedlings. Research has also shown that this species reduces the yield of wheat and increases the yield of rice. Other allelopathic plants include mango, box elder, broccoli, and Eucalyptus.

Faster and uniform germination of seed as well as establishment of vigourous crop is of paramount importance in direct-seeded rice crop, which in turn depends on seed germination and vigour per se. Rice being an albuminous seed, it is hypothesized that galactomannan hydrolysing enzymes (viz., β-mannanase, β-mannosidase and α-galactosidase) play important role in loosening of the embryo-surrounding tissue viz., endosperm, which in turn governs the speed of germination. The study was an assessment of this hypothesis, on ten rice genotypes comprising of five early germinating (which have taken less than 30 hours for radicle emergence) and five late germinating (which have taken more than 44 hours for radicle emergence) genotypes. The effect of gibberellins (GA) and Abscisic acid (ABA) on enzyme activity was also subsequently evaluated. The activities of β-mannanase, β-mannosidase and α-galactosidase were present in dry and germinating rice seeds and increased during germination. GA could promote the activities of all the three enzymes that reduced the time taken by the germinating seed to reach the stage of lemma rupture and radicle emergence. On the other hand, ABA had an antagonistic effect on the activities of these enzymes and enhanced the time taken by the germinating seed to reach the stage of radicle emergence. However, no changes were observed with respect to time taken for lemma rupture, which corroborate that lemma rupture could be due to expansion of

The occurrence and the significance of JA and its derivatives have been reported in a large number of plant species. Jasmonates play vital role in various physiological and developmental processes such as floral development (like male and female organ development, embryo development, sex determination, seed germination, seedling development), senescence induction, growth inhibition, tendril coiling, trichome formation, ripening of fruits, potato tuberization, mechanotransduction and fungal arbuscular mycorrhizal association (Santino et al., 2013; Wasternack and Hause, 2013; Wasternack, 2014). Major outcomes of the reports highlighting the significance of JA in general plant growth and photosynthesis are breiefly overviewed hereunder.