a. The bacteria that causes botulism are found in soil‚ water‚ animal guts and dung. When the spores exposed to low oxygen and certain temperature‚ they produce botulinum toxin‚ able to germinate‚ metabolize‚ food sources through an aerobic respiration to produce toxin. The toxin blocks the release of acetylcholine from motor nerve endings causing paralysis symptoms. The botulism either food born‚ eating contaminated home-canned foods where the fermentation takes place. or through abrasion in the
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Introduction Seed germination and growth are influenced by many factors. Some of these are the environment‚ light quality and moisture availability. Other factors which may influence seed germination are a result of the environment surrounding the seed‚ like alleleopathy. In this experiment we are going to study the alleleopathy of garlic. Using the scientific method of inquiry‚ my group and I are experimenting if the volatility of the crushed garlic will affect germination and growth of the radish
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5.5 | 4.5 | 5 | 5 | 5 | 5 | Table 2 Breaking dormancy of Leucaena leucophala seeds Treatment | % Germination | | R E P L I C A T I O N | | 1 | 2 | Average | Rubbing on sandpaper | 0% | 0% | 0% | Clipping | 0% | 1% | 0.5% | Soaking in hot water (50 degrees Celcius) | 0% | 0% | 0% | Control | 6% | 0% | 3 | The experiment has shown that by clipping the seeds perhaps germination of the seed can be attain. Rubbing the seed with sandpaper can break the dormancy as well as it can also
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germinating radish seeds give off a chemical that interferes with the germination of other seeds. A few years ago‚ a group of scientists published a scientific paper that demonstrated that germinating radish seeds have an allelopathic effect upon lettuce seeds. A year later‚ another group of botanists repeated the experiment. The second group claimed that the radish seedlings had no allelopathic effect upon lettuce seed germination or growth. Now it is your turn to determine if radish seedlings do have
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Ministry of Agriculture‚ Govt. of India 86‚ Sector -18‚ Institutional Area‚ Gurgaon- 122015 Website: www.novodboard.org Dr. M.S.PUNIA EXECUTIVE DIRECTOR National Oilseeds & Vegetable Oils Development Board‚ (Ministry of Agriculture‚ Govt of India)‚ FOREWORD India stands at sixth place in the world in energy need and overall demand of crude oil which is expected to rise annually by 5.6% upto 2011. The scenario of rising prices in the world oil market and respective foreign exchange cost are the
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symbioses. Fortunately‚ these mycorrhizal fungi form mutualistic relationships; which will enable the plant to absorb a sufficient amount of water‚ consume nutrients from the soil‚ and prevent pathogens from harming the roots. An experiment on the germination and seed production will be conducted with and without the use of the mycorrhizal fungi to determine its level of influence on the Asclepias californica plant’s progress. The plants will be raised and nursed in a greenhouse. Overall‚ the healthy
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In this lab the peroxidase enzyme is tested in a dormant avocado seed as well as an avocado seed undergoing the process of germination. A gas pressure will be used to test the seeds and see if the peroxidase enzyme is present in either of the seeds. A catalyst is very similar to track spikes. Spikes increase a runner’s speed‚ as a catalyst speeds up the chemical reaction time in a plant. Neither the catalyst nor shoes are changed in these actions. Enzymes are macromolecules that act like catalysts
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on seed germination and after performing this experiment is can be concluded that acid rain has a negative effect on seed germination. When seeds are soaked in an acidic solution the process of germination slows. Acidic solutions‚ while do slow growth of a seed‚ they do not kill the seed. A seed can be dormant for a majority of its lifespan‚ seeds watered with acid solutions stayed in a dormant condition. For example‚ trial three (3) part one (1) and two (2) both experienced germination. Whereas
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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‚ roots‚ stems‚ or fruits‚ but not limited to just the plants. These toxic chemicals can also be found in the surrounding
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Fields with a history of post-planting problems (minor soil crusting‚ temporary flooding‚ soil compaction‚ poorly drained soils). * When low seeding rates are used. * When seed planted is of moderate germination or the germination rate is unknown (note: use of seed of unknown or low germination is strongly discouraged). * When precision of seeding rate‚ fertilizer application and/or herbicide application cannot be assured. * Where Phytophthora is a historical problem‚ in which case a Phytophthoratoleran
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