nanometers). The longest wavelengths visible the human eye are red (700 nanometers). Each plant is affected differently by the changing wavelengths of light. The purpose of this experiment is to test the effects of different wavelengths on raphanus sativus (radish). The hypothesis is that wavelengths below 450 nanometers will increase raphanus sativus growth and wavelengths above 650 nanometers will decrease raphanus sativus growth. However‚ the data slightly supported that both wavelengths below 450 and wavelengths
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COLPLANT Prof. Lagoke‚ S. T. O.‚ Prof. Adigun J. A. and Dr. (Mrs) Olorunmaiye‚ P. M. COURSE CONTENT: Weed definition‚ classification‚ and economic importance.Weed biology: reproduction‚ mechanism of weed seed dissemination‚ prolificity‚ survivability‚ persistence and colonisation. Seed viability‚ dormancy. Germination‚ adaptability to environment growth and feeding habits. Parasitic weeds. Weed management: prevention‚ eradication and control. Methods of weed control: cultural‚ chemical‚ biological
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germination of seeds Research: A seed is the reproductive unit of a plant that contains a mature ovule with an embryo. The seed is made up of the seed coat hard shell over the seed‚ two cotyledons‚ fleshy membranes that store food‚ an epicotyl‚ which forms the primary shoot‚ the radicle‚ the primary root of the seed‚ and the hypocotyl‚ the stem of the epicotyl. When the seed is triggered by water to sprout‚ a process called germination begins. Germination refers to the sprouting of a fungal seed or‚ more
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CHAPTER I INTRODUCTION A BACKGROUND OFTHE STUDY The radish is an edible root vegetable of the Brassicaceae family that was domesticated in Europe in pre-Roman times. They are grown and consumed throughout the world. Radishes have numerous varieties‚ varying in size‚ color and duration of required cultivation time. There are some radishes that are grown for their seeds; oilseed radishes are grown‚ as the name implies‚ for oil production. The most commonly eaten portion is the napi form tap root
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we compared the amount of germinated Raphanus sativus’ in normal and frigid temperatures. My group and I predicted that more seeds in the normal temperature atmosphere would germinate‚ rather than the seeds in the frigid condition. The experiment starts with two petri dishes‚ and we filled each dish with fifty radish seeds. We made our first observations about the seeds that we see. We labeled one petri dish “Control‚” and the other was labeled “Experimental.” The experimental petri dish was put
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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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on Seed Germination The reproductive cycle of a plant is a process of constant development. It begins with gamete formation‚ and after several other steps leads into germination. During germination a mature seeds beings the formation of a seedling (Freeman 2011). However‚ before germination the seed is in a state of dormancy‚ therefore the seed must have a favorable environment to disrupt the dormancy (Freeman 2011). There are several indications for the seed to being germination. All seeds require
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have chosen to examine the effects of acidic and basic environments on radish plants (Raphanus sativus)‚ by implementing varying pH levels of buffer solution into the soil. We have allotted a total of four days (Tuesday‚ April 10‚ 2012- Friday April 13‚ 2012) to examine the effects of acid rain. Purpose: To investigate the effect of implementing buffer solutions of varying pH levels in soil on the growth in height of radish plants (Raphanus sativus). Independent Variable: The varying levels of
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conditions may affect plant growth. Seeds deliver energy for germination and initial growth until plants begin to photosynthesise and create their own glucose for further development. Aim/Purpose - To demonstrate the effect of environment on phenotype 2To formulate a hypothesis about the effect of environment on phenotype To design and conduct a controlled experiment to demonstrate the effect of one environmental factor on a plant phenotype. Hypothesis- Radish plants that is grown in sunlight
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Sustainability has been defined as “meeting the needs of the present generation without compromising the ability for future generations to meet their own needs”. Sustainable development comes down to three core features of environmental protection‚ economic development and social progress. To improve sustainability around the world people have been encouraged to reduce their ‘footprint’ on the planet. There are key strategies to reduce the human ‘footprint’ on the globe‚ some of these are recycling
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