Seed Germination Essay

849 words - 3 pages

Seed Germination
Seed germination is the process in which seeds or spores sprout and begin to grow after being dormant for a period of time. The length of dormancy varies depending environmental conditions in which the seed is surrounded by. The environmental conditions that determine when a seed will begin to germinate are the temperature, oxygen, the amount of light, and the supply of water (Germination, accessed 23 February 2010, http://www.answers. com/topic/germination).
For a seed to begin germinating the temperature should be between 25 to 30 degrees Celsius. Radish seeds however prefer to grow in cooler temperatures from10 to 18 degrees Celsius. The seed also requires large quantities of oxygen to start germination which is obtained from the air and soil moisture. If the seed is sown deeply in the soil, the seed will fail to germinate due to the lack of oxygen. Light is needed for germination to begin however some seeds germination is hindered by light (Factors affecting seed germination, accessed 23 February 2010,
The supply of water is the prime requirement for germination as there is no water in a mature seeds embryo. The seed therefore needs to absorb water in order to become active and begin germinating. (Yahya,H, 2010, The Miracle in the seed, accessed 13 march 2010, If a plant is watered with a small amount of water they weaken, which happens when they loose water faster than they gain it from the soil. Before the plant begins to loose strength the stomata pores close up which helps keep the water inside but allows less carbon dioxide to enter the plant. Plants require carbon dioxide to grow, so the growth of the plants will be slowed down because of the lack of water. However if plants get too much water the can not get any air from the soil which is used in respiration. The soil becomes so damp that it encourages disease, causing organisms, which may affect the plant as well as rotting the roots. Lack of nitrogen in the may also cause the leaves to turn yellow and fall off. ( affect _plant_ growth)
The type of soil also affects germination and the growth of the plant. The soil is important as is provides nutrients such as potassium, nitrogen and phosphorus which is essential for their growth and survival. There are many different soils and mixtures that can be used for example (potting mix, garden soil, Mulch and manure) which all contain different ingredients (Plant Nutrients, accessed 10 March 2010, nutrient.htm). A general potting mix contains horticulture sand, composted pine bark, living micro organisms (bacteria, fungi, protozoa), base fertilizer and compost. Potting is a blend of composted organic material suitable for all indoor and outdoor plants. Some...

Find Another Essay On Seed Germination

Does Planting Depth Affect Seed Growth?

985 words - 4 pages When planting a seed, many factors allow the seed to grow and become a plant. To sprout from the ground, and to survive, seeds need water, air, and a certain temperature. Seeds can get water, oxygen, and sun by being placed at the proper planting depth. Planting depth is the depth at which a seed is placed in the soil. If a seed is exposed to these important needs, it goes through a process called germination. According to the Wise Geek article

What are the Effects of Acid Rain on Germination?

1242 words - 5 pages What are the Effects of Acid Rain on Germination What are the Effects of Acid Rain on Germination? PURPOSE The purpose of this experiment was to determine the effect� of acid on seed germination. I became interested in this idea because I know that� acid rain is becoming� a factor in pollution around the world.� I know this from books I've studied and news articles I�ve read. The information gained from this experiment may

Pine Trees of Pennsylvania

1140 words - 5 pages eastern hemlock, which as mentioned previously is commonly used for construction timber and is commonly found in Pennsylvania, is a tree that can be propagated with relative ease through evergreen seed propagation Hemlock Seed Propagation Choose the number of Hemlock seeds you would like to propagate. Begin the process by placing the seeds in a refrigerated environment. The cool air will stimulate germination by simulating the briskness of the

Grade A Lab Report on The Effects of Acid Rain with the Germination of Pea Plants Including 2 data charts

1190 words - 5 pages 12 8.4cm 9/19/2005 12 12 9.4cm These tables show, on different dates, how the seed germination number varied in each setup along with the Average amount of growth. First the Experimental, and then the Control.Growth and Germination Data of Both SetupsSome other results we have that were not numerical were that on 9/16 the Experimental group had no visible embryo; the only growth was the roots (In

The physiology of Carrot seed crops in New Zealand

1190 words - 5 pages later umbrels are of lower seed quality whereas the seeds from the primary umbrel have a higher germination rate and vigour index (Heterogeneity of carrot seeds depending on their position on the mother plant, pp. 27). The seeds from the secondary umbel are also of high quality, superior in seed yield and morphological characteristics (Heterogeneity of carrot seeds depending on their position on the mother plant, pp. 27). It is therefore

Nutrient and Seed Rate Effect on Yield and Yield Contributing Characters of Wheat at Agro-Climatic (subtropical) condition of Faisalabad

2938 words - 12 pages unit-1 area because of sharp rise in temperature during tillering phase of the crop and ultimately decline in the wheat yield ( Soomro and Oad, 2002: Sadeghipour, 2008). In order to mitigate the deleterious effect of late sowing several researchers ( Aslam et al.,2003, Ahmad et al., 2007) suggested to increase the seed rate to compensate the reduction in germination percent and no. of tillers unit-1 area ( Jan et al., 2000). Seed rate is an

Energizer Plant

1272 words - 5 pages where no soil is used. Water mixed with sustenance and a source of light provide the plant with the essential elements needed for its growth. However, while the plant needs no soil, it often needs a growing medium to supply the plant a means of support. Perlite is one of the mediums most often used in seed germination. It is made from volcanic rock and it expands when it has been heated in a furnace to 1500 degrees

Plant Reproduction

751 words - 3 pages blown in the wind and some are carried by animals. Animals don’t eat plants until they are ripe because they taste bad, thus giving the seed enough time to develop so it can make it through the animal. Some seeds are not even eaten they just attach themselves to animals. When Germination starts the seed becomes dormant enabling it to survive for an extended period of time. Some plants like water lilies can survive this way for a thousand years; other plants like sugar maple trees can only last a week. In order for a plant to germinate it must have water, oxygen, and a particular temperature in some cases.

The Mojave Yucca

1275 words - 5 pages tree with dagger-like leaves. This plant species begins as a seed, however seed production in a mature Mojave yucca is dependent upon the site conditions and the availability of its pollinator (USDA Forest Service, n.d.). In conjunction to seed production is pollination, where the female yucca moth, scientifically known as Tegeticula yuccasella, fertilizes the seeds of the plant (Armstrong, 2000). Once the seeds have been formed, germination then

Never Give Up Hope

820 words - 3 pages Germination and Early Growth of Three Angiosperms Instructor: Peter Introduction:         In this experiment, we will observe and record the growing patterns of three different species of angiosperms (corn, bean, mustards) for 11 weeks. At the beginning of the experiment we plant numerous seeds from each species in the same pot. In hopes that at least two of each species would germinate. After

Character Development in Ray Bradbury’s Something Wicked This Way Comes

972 words - 4 pages exhibits this idea perfectly. Throughout the book, Halloway displays his germination. In seed form, Charles Halloway is battling a 24/7 internal brawl he is losing. It is him against his aging self, the old man he believes he is. Halloway glares into the mirror, seeing a fifty-four year old man with “moon-white hair” and a “winter apple face” glaring back. He gazes at his alluring wife, so youthful looking he believes others think she is his

Similar Essays

This File Is My Science Report About Seed Germination Science Research

1850 words - 8 pages affect the water. Considering the waters weren't too far from neutral, you could then assume that the more acidic or basic the water is, the more damage it will give the seed and may even kill it with enough concentration of high or low pH. Even after all of this, the experiment did not support the hypothesis. The normal water did let the beans grow normally, but the acid water didn't stop the bean from growing. The acidic water didn't kill the

The Effect Of Smoke, Ash, And Heat Shock On Seed Germination Of Seven Species Of Semi Arid Rangelands In The Central Zagros Region, Iran

703 words - 3 pages , smoke and ash-stimulated seed germination in genus of Asragalus (Jefferson et al. 2008, Chou et al. 2012), we expected to find a significant increase in the seed germination percentage of Astragalus susianus after fire products. Our results contradicted this prediction; we believe that the reason why we did not find any significant difference in germination between any treatment and the control in Astragalus susianus was the loss of seed dormancy

Seeds Essay

696 words - 3 pages before it has had time to establish its roots or make its own food. Buried deep inside is the tiny plant itself, this is known as the embryo or germ. Tho tiny now, this small thing will grow into a simple flower or a large tree. Attached to the cotyledons are two structures. During germination, beneath the cotyledons is the hypocotyle, the tip pf this is called the radical. The radical is the first to break out of the seed coat and the first true

How Low Can You Go?: Planting Depth

1217 words - 5 pages When planting a seed, many factors permit the seed to grow and become a plant. To sprout from the ground and survive, seeds require water, air, and a specific temperature. Seeds can get water, oxygen, and sun by being placed at the proper planting depth. Planting depth is the depth at which a seed is placed in the soil. If a seed is exposed to these vital needs, it goes through a process called germination. According to the Wise Geek article