Introduction This experiment is designed to test the allelopathy of two different treatments‚ Eucalyptus (Eucalyptus cinerea) and Lemon (Citrus limon). The two treatments will be tested on radish seeds (Raphanus sativus) to investigate the effect of the treatments on the germination of the radish seeds. Allelopathy is the beneficial or harmful effects that one plant has on another plant by the release of chemicals. Allelopathy studies the interactions among plants‚ fungi‚ algae and bacteria
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INTRODUCTION A seed is a fertilized ovule that contains an embryo and transforms it into a new plant through the process of germination. Seeds remain inactive until conditions are right for germination. All seeds need water‚ oxygen‚ and proper temperature in order to germinate. However‚ some seeds require full light or darkness to germinate. According to Holm (1996) seeds have chemical inhibitors that prevent germination. A seed will not grow unless those inhibitors are destroyed by things like
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Bioassay of Radish Seeds Bioassay is a type of scientific experiment used in the development of new drugs and monitoring pollutants. It estimates the potency of a substance‚ by testing its effect on living matter. In other words‚ it determines how much of the substance is needed to poison an individual‚ without testing it on any humans or animals. From here the TC50 of the substance can be adjusted for dealing with humans and animals over plants. In this lab we attempted to find the potency of
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Radish Seed Lab Report Problem: What caffeinated drink (monster‚ coffee‚ or green tea) will the radish seeds grow in the best form over a nine day period? Hypothesis: If the radish seeds put in the dish with the drink Monster‚ then the seeds will grow faster because of the amount of energy given to them. The amount of caffeine in Coffee is much greater than the amount in green tea and Monster‚ but neither coffee nor green tea contains any extra type of an energy booster like the Monster does.
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The purpose of this lab was to investigate how size of seeds impact respiration rate. It was hypothesized that bigger seed will require more oxygen because more energy is needed to sustain the seed’s homeostasis. For this experiment 4 groups was set up with 0.5 mL worth of the following seeds: peas (1) ‚ black beans (1)‚ radish seeds‚ and glass beads (control). The black bean served as the biggest size‚ peas were medium‚ and radish seeds were the smallest. After setting up the microrespirometer and
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In this lab we used radish seeds planted in twelve different pots and three different percentages of isopropyl alcohol (5%‚ 10%‚ & 20%). The first three pots were the controls and they were only given tap water. The second set of three pots were labeled as the low group and they were each given 5% of isopropyl alcohol. The third set of three pots were labeled as the medium group and they were each given 10% of isopropyl alcohol. The fourth set of three pots were labeled as the high group and they
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understory of Eucalyptus trees Possible Hypotheses ? Pattern: very few plants grow in the understory of Eucalyptus trees Hypothesis: leaves exude toxic chemicals that inhibit allelochemicals neighboring plants Today’s Lab: Allelopathy • Allelopathy: is a biological phenomenon by which an organism produces chemicals that influence the growth‚ survival‚ and reproduction of other organisms (i.e. some plants chemically inhibit the germination or growth of competitors) • The word comes
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not only to us‚ but the environment as well‚ it is important to understand the nature of Allelopathy and how it affects plant ecology. According to the Topics in Biology Laboratory Manuel‚ allelopathy refers to “the beneficial or harmful effects of one plant on another plant‚ by the release of chemicals from plant parts in both natural and agricultural systems.” By secretion of biochemical materials‚ allelopathy involves a plant’s ability to inhibit germination or growth of the surrounding germination
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Radish Radishes are only moderately cold hardy and need about 6 weeks of favorable growing conditions to produce sufficient biomass to achieve most potential benefits. Lastly‚ be forewarned that rotting radish residues produce a powerful rotten egg-like odor‚ particularly during winter thaws. Radish Seedlings and Sprouts Radish seeds don’t have to be planted‚ they can be grown in a sprouter and eaten just as you would eat mustard and cress or any other sprouted bean or seed. As some of my
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Michele Baden Bio 100 – 05 ALLELOPATHY INTRODUCTION The purpose of this lab was to observe the effects of chemical warfare among plants. Plant seeds compete with other plants and seeds‚ for sunlight‚ and nutrients in order to germinate. In order to win dominance over other seeds‚ and reduce competition‚ plants produce and release a chemical in order to prevent other seeds from germination. This type of chemical warfare is referred to as allelopathy. Allelopathy exists in many parts of the plants
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