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
ABSTRACT Factors affecting germination are numerous and well studied (soil nutrient composition, water availability, temperature, etc). Others, such as seed size and its effects on the duration of seed germination have been largely unstudied. In this study, seeds from the plants P. vulgaris and L. culinaris were studied to observe any differences in the duration of germination, with P. vulgaris being the larger seed species. The data revealed that seeds from the L. culinaris took a shorter period
Introduction: Seed germination is a process where the quiescence seed imbibed with water, the seed radical elongates and breaks through the seed coat surrounding the embryo. However, most of the plant seeds do not germinate immediately and they under goes period of dormancy. These dormant seeds are normally dehydrated, containing inactive enzymes and resistant to unfavorable condition. These characteristic allowed the seed to be dispersed before germination occur and survive adverse environmental
Purpose: The overall purpose of this lab was to demonstrate how the salt concentration in water affects the germination of seeds and how it affects the seeds while they attempt to grow and sprout into grass. Hypothesis: If different amounts of salt water is added to 6 seeds, then the container of dirt with the water with the lowest concentration of salt will have the most seeds germinated and the tallest blades of grass. Variables and Controls: IV: Salt concentration of the solution DV1= Number
perfect conditions. In the field of botany, this phenomenon is known as “physiological seed dormancy” (will be referred to as PSD from here on out). In plain language, PSD is like a “hibernation” stage that occurs after seed maturation but before germination. After the seeds of a mother plant mature, they respond to environmental cues that signal the end of the growing season is near and begin PSD (hibernation). If the seed did not enter this dormancy phase, it would attempt to grow as soon as it
Optimal pH Levels for Radish Seed Germination Question Do radish seeds germinate best in neutral, acidic or alkaline solutions? Introduction Germination is the reestablishment of metabolic processes in a seed after a period of dormancy. The germination process varies for different seed varieties. Generally, germination begins when water causes the outer covering of the seed to loosen. The uptake of water by the seed triggers the release of hormones needed for respiration, protein synthesis,
Effect of Acid Rain on Germination A seed is formed from the ovule of a flower as a result of fertilisation, and is then dispersed from the parent plant. If the seed lands in a suitable place, it will germinate. Germination is the growth of the embryo inside the seed, eventually growing into a mature plant. CONDITIONS NEEDED FOR GERMINATION OXYGEN - is used for aerobic respiration, which provides the energy for many chemical changes involved in the food reserves and making the new
The purpose of the project was to determine whether Eucalyptus globulus had an effect on the germination of radish seeds. It was hypothesized that Eucalyptus globulus would have a negative effect on the germination of the seeds and their growth. Before a seed can germinate it must first shed the seed coat, a protective outer layer that protects the seed from parasites, injury, and unfavorable temperatures. Inside the seed coat is the embryo which contains the root and first leaves of the plant,
thermometer in each day. (23’C) Additional heat may decrease or increase the growth of roots. Light Seeds are placed in transparent petri dishes at the same time and exposed to the same light level. This allowed to reduce inaccuracy between groups. Time Germination and growth of roots are measured at lunch period between 12.30 pm.-13.00 pm for each trial In order to make a more accurate measurement. Volume of Water By using graduated cylinders. Equal amount of water will provide more accurate results.
The Effect of Acid Rain on Germination of Cress Seeds Aim: to investigate that how the acid rain affects the germination of cress seeds. The factors that effect the germination of seeds are: · Temperature · Acid rain · Oxygen · Water I will just see what effect does the acid rain have on germination of seeds. Apparatus: · Petri dish (11) · Cress seeds (20 11) · Sulphuric acid (70cm³) · Distilled water · Measuring Syringes (11) · Beakers · Filter paper
The Effect of Sodium Chloride Concentration in Growing Medium on the Growth and Total Germination of Cress Seeds Scenario There are a number of things that can influence how/if a plant grows and germinate. These include; · Amount and intensity of sunlight. · CO2 concentration of the air. · Temperature and humidity of the atmosphere. · PH of the water and soil. · Salt concentration of the soil and water. · Quality of the soil, i.e. Minerals and nutrients. · Use of
substances affect the germination of plants. As I know that sunflower seeds have a fairly short germination span, they will allow me to carry out this experiment more accurately as germination deviations will be clearly identifiable. For this reason my aim is to determine whether varying concentrations of alcohol and/or tobacco effect or prevent the germination of sunflower seeds. My research question is, “Does alcohol and/or tobacco negatively effect sunflower seed germination?” I hypothesise that
rate at which they germinated, if germination took place at all. Every day for a week, a log was kept with the conditions/environment the seeds were kept in and to see if any changes had occurred. The results of the experiment showed that the Buckwheat seeds grew best with a lower concentration of salt. INTRODUCTION Salt and the effects it has on plants in the germination of seeds has been studied for years. There are various factors involved in seed germination like water intake and salinity. Osmosis
The Effect of Different pH Levels on the Growth of Sunflower Seeds Purpose: The purpose of this experiment is to see how germination is affected by differing pH levels in water. Background Information: In order to germinate and grow, seeds require oxygen, water, and the correct temperature. Once seedlings appear, they will also require light and carbon dioxide. The amount of water a plant receives is very crucial in their growth and survival. If a plant receives too much water, the roots will literally
(0.00 to 0.73 mol/L) on the Germination Rates of Raphanus sativus seeds. Introduction: Research Question: What impact does different sucrose concentrations (0.00 to 0.73 mol/L) have on germination and subsequent growth of Raphanus sativus seeds? Background information: Germination experiments are typically completed in many high school science classes; such as in the prerequisite to IB biology, where students analyze the effect of salinity or radiation on germination rates. Many scholarly publications
Seed Germination and Temperature Introduction Seed Germination is the process by which an organism grows from a seed into a plant such as an angiosperm or gymnosperm. Temperature is a factor that can highly effect the germination of a plant. Squash is recognized in the family Cucurbitaceae. Squash come in different varieties, usually distinguished as being “winter” or “summer” squash (Maynard, 2003). It is actually said that summer squash is harvested when the fruits are immature (New World Encyclopedia
Seed yields and seed quality (germination and vigor) may be unpredictable due to growing conditions and 2. Market demand for certain crops may vary significantly from one year to the next. 2.0 METHODS OF SEED STORAGE. Several methods have been adopted in storing seed. Some of these methods
water would affect the root growth of cucumber seeds. Plants need the right components in an environment to grow; they need light, oxygen, water, temperature, nutrients and minerals to through germination. Plants will only germinate when they are in the right environment best suited for their needs. Germination is the process, in which plant embryos start to grow after a period of dormancy, when a plant is dormant it is in a sleep state in which it can survive the worse types of conditions and won’t
whether or not allelopathy was the factor contributing toward succession in abandoned agriculture land. The researchers conducted laboratory bioassays and compared the results to the field. Looking at leaf extracts, long term successional data, germination rates in the lab, and field observations to conclude that goldenrod succession was not due to allelopathic effects. Furthermore, the inhibitor chemicals have more of an impact in control settings and not in the field, which was within their native
germinating. Also, air getting into the bags and drying out the towel faster could have been prevented by making sure the bag was closed. Lastly, the seeds did not get put in the bag exactly like the previous time which could have affected the germination. To improve this lab, measuring out the same amount of solution for each pH could have made it more accurate. To further this experiment we could have had another set of seeds in the same pH solutions but in the sun to see