Superperthrive Lab Report

Observing the Wisconsin Fast-Plants was a monitoring experiment, we were just observers to the natural life cycle of these plants, and we did not influence their growth in any way that would not occur naturally. We took notes and observations about each stage of

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.

Duckweed is a small aquatic plant that is able to grow rapidly, making it the ideal specimen for our experiment. It is hypothesized that altering the amount of light received by duckweed will alter its photosynthetic rate. It is predicted that a lower light intensity will lower the rate of growth in duckweed.

The use of too much fertilizers, and in particular, of fertilizers with high concentrations of nitrogen, has been linked to reduced biodiversity (Xiankai et al. 2010). It becomes necessary to consider the detrimental effects of high concentrations of fertilizer in the reduced spaces. Fertilizers are salts, and therefore high concentrations of fertilizers can deplete the plant from water.

Null Hypothesis – A plant on a window sill does not grow faster than a plant on a living room coffee table

Each quad of soil had 2-3 seeds in it along with either 0, 3, 6, or 9 pellets of fertilizer in each quad to possibly get 4 plants total. Two types of fertilizer exist, organic fertilizer and synthetic fertilizer. Gardeners.com says that, organic fertilizers are made from organic materials. (1) Organic fertilizers also prevent the plant with a better structure, improving the structure of the plant. (2) Synthetic fertilizers are fast-acting fertilizers but also come in different forms such as granule, spike and pellet. (2) This kind of fertilizer is also known for seeing green in the plants quicker and quick-hit of nutrients for the plants. (2) There are advantages and disadvantages of using fertilizer. Plants can have a quick action of growth and are more defined when using fertilizer. (3) But sometimes there is a chance of using the fertilizer to much causing damage to the whole soil ecosystem. (3) Over two weeks we observed the growth of the fast plants and recorded the data of the height. By the end of the two weeks, we also recorded the weight of the fast plants. I hypothesized that each quadrant was going to be different plant growth, with the quadrant of 6 pellets (quadrant C) being the fastest growing plant. My individual results showed that the quadrant with 9 pellets (quadrant D) had the most results with growing in

might affect the fitness of each variant. In other words which factors might increase plant growth, survival,

Figure 1. shows the average leaf mass decomposition rate for invasive species leaves and native species leaves Results Explanation – In the experiment, we found that the invasive species leaves have a isopods faster decomposition rate than the native species leaves. The treatment used in the experiment differentiated only where the 1 gram (each) of the two different types of leaves were used. At the end of the experiment, the leaves had little to no moisture left to them and the 2 isopods were dead. Discussion – 1)

Germination of seeds, and early stages of growth are important determinants in interspecies competition (Mangla et al. 2011). Higher proportions of B. gracilis seedlings to B.rapa will allow B. gracilis to gain an advantage both in germination, and in development of its roots and shoots. B. gracilis can then establish itself and sequester resources (water, sunlight soil nutrients) for growth and survival before B. rapa. Additionally, it was predicted that the mean biomass (root and shoot) of B. gracilis would increase as the ratio of B. gracilis to B. rapa increased. Multiple roots of long length in B. gracilis will be favoured as they can better compete in water and nutrient acquisition against B. rapa (Craine and Dybzinski 2013). Increased ability to acquire nutrients thereby increases the availability of nutrients B. gracillis has to grow, increasing shoot length and thickness. On this basis, the mean height of B. gracilis was predicted to increase as the ratio of B. gracilis to B. rapa increased as

Azolla is unique because it is one of the fastest growing plants on the planet, does not need any soil to grow, and gets its nitrogen fertilizer from the atmosphere. It is called ‘Azolla Superorganism’ because it had a symbiotic relationship with the cyanobacterium Anabaena and these two organisms combine their talents to work together. Their talents are; Azolla’s leaves

Measure and record the height of each plant everyday for 2 weeks. For each day, calculate the growth of each plant by subtracting the measurement at day 0 from the measurement at that day.

The twenty-five tomato plants had an average height of 164.6 mm while the average height of twenty five tomato plants planted with twenty five oat plans was 97.0 mm. When comparing these data points, they produced a t-score of 7.689 and a p-value of 0.000. In comparing the interspecific competition affect on weight, the twenty-five tomato plants had an average weight of 1067.9 milligrams compared to the twenty-five tomato plants also grown with twenty-five oat plants that had an average weight of only 270.5 milligrams. When comparing these data points, they produced a t-score of 7.745 and a p-value of 0.000. Since the p-values are both less than .05, at an alpha level of .05 or less, we can reject the null hypothesis that both height and weight were the same in interspecific competition cases. This means we can accept the alternative hypothesis that interspecific competition affects height and

Since many of the plants followed this pattern, the trend between their mount and growth will be calculated using negative numbers for the plants that went down in weight. The plants that were grown in wood’s average growth in weight was -0.363 grams and their growth in leaf length was -0.05 centimeters. For the plants grown in stones, the average growth in weight was approximately -0.327 grams while the average growth in leaf length was 0 centimeters. Lastly, the average weight growth for the control group in a plant hanger was -0.202 grams and their leaf growth was 0 centimeters. Plants 3 (grown in wood) and 4 (grown in stones) exhibited the largest decrease in weight, losing 0.633 and .607 grams from the first to 36th day. The plants with the least decrease in weight were plants 5 (grown in stones) and 7 (control group), with a loss of 0.145 grams and 0.139 centimeters, respectively. Only three plants increased in their leaf length; plants 1 (grown in wood), 6 (grown in stones), and 7 (control group). Both plants 1 and 6 increases in height by 0.1 centimeters, while plant 7 increased by 0.2

One of the first plant rooting hormones found is auxin indole-3-acetic acid in the same year, Zimmerman and Wilcoxon (1935) discovered that several new synthetic auxins, among them indole-3-butyric acid also promoted rooting. It was demonstrated that auxin indole-3-butyric is very effective in promoting rooting growth in a wide variety of plants, and it is used commercially to root many plant species world-wide (Hartmann et al. 1990). Since its introduction more than 50 years ago, auxin indole-3-butyric has been the subject of hundreds of experiments and articles. Today one can still find varieties and cultivars in almost every type of plant, respond to treatment during only part of the growing season, or produce roots only in a fraction of the treated cuttings. In recent years, several attempts were made to understand the role of auxin indole-3-butyric in the rooting process in plants at the metabolic levee