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 such as leaves‚
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Abstract The purpose of this lab was to see if radiation has an effect on the cultivated radish seeds that we used. From the observed data that we collected‚ we were able to conclude that when seeds are exposed to radiation‚ it affects how they grow‚ if there is any growth at all. Introduction Radiation is an important environmental abiotic factor for plants‚ and one small section of the electromagnetic radiation spectrum‚ is called the Photosynthetically Active Radiation (PAR)‚ provides
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anticipated. The Tap Water allowed the radish seeds to germinate with in the first 48 hours. In the petri dish labeled tap water‚ 10 out of 10 seeds sprouted into plant growth as seen in Figure 5.1. The radish plant growth within the tap water petri dish grew so well it started to lift the lid off the dish. The results from the Acid Rain (50% vinegar solution) did not allow any radish seeds to germinate. There were never signs of seed germination while observing the seeds over a three week period. In the
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Observation of the germination of Cherry Belle radish seeds in different temperatures Problem: In which temperatures‚ 5°C or 47°C‚ will the cherry belle radish seeds germinate better over a 9 day period? Hypothesis: If temperatures of 5°C and 47°C are used on cherry belle radish seeds to study which temperature will be better for the germination of the seed for 9 days‚ then 47°C will be the best temperature because 5°C would be too cold for the seeds to grow in. The manipulative variable
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http://www.forestry.uga.edu/outreach/pubs/pdf/FOR99-004.pdf http://csip.cornell.edu/Projects/CEIRP/AR/Allelopathy.pdf http://books.google.com/books?id=AHVDtveqlpMC&pg=PA629&lpg=PA629&dq=allelopathic+plant+seed+test&source=bl&ots=hSTdyzvgf8&sig=VarslZVjWohBBHlmuzZzTYvwvn4&hl=en&ei=h6_-TKLLNYSglAfn79zHCA&sa=X&oi=book_result&ct=result&resnum=6&ved=0CEAQ6AEwBQ#v=onepage&q=allelopathic%20plant%20seed%20test&f=false Allelopathy is very a useful
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extracts obtained from mango leaves inhibited seed germination of radish and sand fescue‚ and inhibited seedling growth of root and shoot growth of radish‚ rapeseed‚ sand fescue and crabgrass (Figure 1 and 2). The extract obtained from 0.03 g dry weight of mango leaves inhibited 20 and 50 % germination of radish and sand fescue respectively‚ on day 4 (Figure 2). The extract obtained from 0.03 g dry weight of mango leaves inhibited the root growth of radish‚ rapeseed‚ sand fescue and crabgrass by 9.03
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The Effects of Household Detergent on Germination and Biomass Production of Pinto Beans and Radishes Introduction and Background: Plants are a diverse kingdom that gives vital sources of food‚ energy‚ and oxygen to sustain life on the planet. Plant classification is divided into four major groups including mosses and liverworts‚ ferns‚ conifers‚ and flowering plants. Plants we most commonly identify ourselves with is edible fruits and vegetables. There are a variety of types of vegetables from
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PURPOSE The purpose of my experiment is to determine the effect of acid rain on seed germination. I chose this idea for a project because I have heard that acid rain is becoming a more prominent factor‚ around the world‚ due to pollution. I see reports of this in books and websites I ’ve visited‚ as well as news articles I have read. LITERATURE REVIEW http://www.selah.k12.wa.us/soar/sciproj99/CodySciProj.html The germination test results from glass labeled “Trial 1” (100% water)‚ and “Trial 5” (highest
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added to the radish seeds effects the speed of growth during the six-week time frame of the study. The major variables with this study are proficient communications among the team‚ the seeds‚ soil‚ water concentration‚ fertilizer‚ light exposure‚ temperature of the room‚ consistency of following watering (watering the plant same time every day) and seed depth. All of these variables can affect the germination process in some sense but seed depth is the greatest‚ on the back of the seed packet it states
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competition between plants for water and sunlight will affect their growth. To do this we will set up two pots with soil in them‚ one will have a radish seed inside and the other will have a radish seed surrounded by crest seeds. The independent variable will be the amount of seeds in each pot and the dependent variable will be the height of each radish at the end of the experiment. The constant factors will be the amount of sunlight each pot receives; this will be done by placing both pots by the
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