Purpose hypothesis hypothesis purpose if water, orange juice, and apple juice are used to moisten the paper towel which the seeds are on, then the apple juice will germinate all 20 seeds before orange juice or water. You make a germination bag by placing 1 folded piece of paper towel in the plastic. Ap biology lab cell respiration this investigation uses. Use 5 levels of the independent variable and a measurable dependent variable. Seed germination laboratory mihir patel data analysis percent germination for 26 corn seeds days since. The purpose of this activity is for you to experience the design, testing, discovery, and communication aspects of the scientific process. Label each zip loc bag with the treatment type, name of person in lab group, and period number. Our handson kits have been developed by expert scientists and educators to incorporate cross cutting concepts, science and engineering practices and disciplinary core ideas. Write down on data table about growth observations 4.
Think about what conditions are needed for seeds of the type you selected to germinate. Polluted water, flask, distilled water, petridishes 7, blotting paper, seeds, and tap water. Pdf seed dormancy and seed longevity partially determine the crucial stages. Now, break the students into groups of four to come up with a group name and to develop their own hypothesis to test for example. Science lab report example using the seed germination. Derek bewleyl department of botany, university of guelph, guelph, ontario n1g 2w1, canada. B survival curve of seedlings in the field experiment under nurse plants in. Not surprisingly then, seed biology is one of the most exten sively researched areas in plant physiology. Chapter 1 discusses the structure of seeds and seedlings, while chapter 2 covers the chemical composition of seeds.
If you continue browsing the site, you agree to the use of cookies on this website. Parts of a flower and their functions biology mocomi kids. Study guide to accompany campbells biology in focus, 1st edition. Create a lab report or infographic that includes the following information from this investigation. Pdf seed dormancy and control of germination researchgate.
Germination percentage tells you what fraction of seeds germinate out of a population of seeds. Germination is when a seed begins to sprout and grow. It integrates advances in the diverse and rapidlyexpanding field of seed science, from ecological and demographic aspects of seed production, dispersal and germination, to the molecular biology of seed development. Write the students answers on the board or on a separate sheet of paper before.
Germination is the process of which a plant of fungus emerges from its seedor spore. This number was then multiplied by 100 to obtain the % of seed germination during that time period. Follow the instructions, or design your own investigationslet us help you to identify activity kits to meet your specific next generation science standards ngss needs. If the salt solution percentage is too high, the seeds wont grow, but most of the seeds grow around 1% and 0. Effect of light on seed germination and seedling shape of.
Seed germination and dormancy biology encyclopedia cells. Seed germination lab data for writeup linkedin slideshare. Biologys assistant, just read the information below and collect and analyze the data from the experiment. The pot containing the organic fertilizer had a seed that had germinated earlier than expected. We have kits for new and traditional ap biology labs. Discuss processes and requirements of seed germination. Pdf metabolic processes during seed germination researchgate.
The germination of seeds, third edition discusses topics concerning seed germination. Germination of the seed suzanne distrola ap environmental. Under favorable conditions rapid expansion growth of the embryo culminates in rupture of the covering layers and emergence of the. Packed with the embryo is enough stored chemical energy to power the young seedling until it can capture its own energy from the sun by the process of photosynthesis. Sep 11, 2017 physiological dormancy uses germination inhibiting hormones to prevent germination in the absence of the specific environmental triggers that promote germination. Thus successful seed germination is vital for a species to perpetuate itself. Jan 07, 2010 information for the seed germination lab write up slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Rlg represents a range of values varying from 0 germination only in the dark to 1 germination only with light, and it is relatively unaffected by dormancy milberg et al. V 11b7 introduction the process of seed germination includes the following five changes or steps. Then you can start reading kindle books on your smartphone, tablet, or computer no kindle device required. Tree and forestry science and biotechnology 11, 4773 2007 global science books sily recognized by the growth of white, superficial mycelia that gives a distinct pow d ery appearance on leaf s. This can be used as a powerpoint or a digital book in pdf.
Biology has been busy working on his own pocket seed experiment and he needs your help. Get care instructions for germinating seeds, including details on preparation and maintenance. Importance, development, and germination is a part of a threevolume treatise, which aims to bring together a large body of important information on seed biology. Scientific method seed germination explore biology. Buds and twigs, seeds and germination, vegetative reproduction, and tropical examples by d g mackean. Exploring seed germination by brad williamson background. These experiments relate to ap biology science practice 3 engage in scientific. Be able to explain the process of the scientific method.
Pdf seed age germination responses and seedling survival of. Seed germination processes and requirements d id you know that the double coconut palm produces the largest seed in the world. Ap biology grid in questions require students to use mathematics to solve biological problems. Study biology online for free by downloading openstaxs college biology 2e book and using our accompanying online resources including a.
Authors and contributors of the 1990 ap biology lab manual and subsequent. Lab report of seed germination by sid bajpai on prezi. Illustrated guide to home biology experiments the home scientist. Germination of seeds is a complex physiological process triggered by imbibition of water after possible dormancy mechanisms have been released by appropriate triggers see webpage seed dormancy. Whatever the size of the seed, the function is to grow into mature plants.
Experiments on seed germination botany biology discussion. The cumulative seed germination percentage was calculated by adding all of the percentages at that point during the experiment. The book offers a broad, multidisciplinary approach that covers both theoretical and applied knowledge. All the results have been recorded in photographs, including some cool animations. Physiological dormancy uses germinationinhibiting hormones to prevent germination in the absence of the specific environmental triggers that promote germination. By definition, germination commences when the dry seed, shed from its parent plant, takes up water imbibition, and is completed when the embryonic root visibly emerges through the outer structures of the seed usually the seed or fruit coat. Scientific method investigation of plant seed germination learning objectives building on the learning objectives from your lab syllabus, you will be expected to. The book is comprised of seven chapters that tackle subjects relating to the field of germination. To write a biology lab manual suitable for a rigorous firstyear high school. Put petri dish away results after a few days of putting our seeds in natural sunlight, the sprouted and grew. For example, peppers will germinate in 8 days at 86f, but take more than days to germinate at 58f pennsylvania heirloom seed savers club n. During and after germination, early seedling growth is supported by catabolism of stored reserves of protein, oil or starch accumulated during seed maturation. Try and use a different variety than your classmate s. Discuss the germination rates and radical length of the lettuce seeds moistened in each of the salt solutions.
Biology s assistant, just read the information below. It includes instructions about the experiment, information about seed germination, blank data cards, and graph paper to record your results. Seed development and germination crc press book this text is intended for plant physiologists, molecular biologists, biochemists, biotechnologists, geneticists, horticulturalists, agromnomists and botanists, and upperlevel undergraduate and graduate students in these disciplines. Discussion of results data table 1 shows the rate of germination, as well as the number of seeds that germinated, as well as the percentages for these values, for seeds set to germinate with tap water over a time period of 1 week, or seven days. Most ap biology students earned enough pts to get a 2,3,4, but very few scored well enough on the grid ins and free response to score a 5. There is also a packet to download and print on your computer. Pocket seed experiment ask a biologist ask a biologist. Errors in this experiment were limited by keeping the seeds in a controlled setting, using identical ziploc bags, as well as paper towels of the same size. The liquid with the least amount of acid and the most. The below mentioned article includes a collection of six experiments that demonstrates the effect of pollution on seed germination. Ap biology links developing inquiry based labs from mr. Scientific method investigation of plant seed germination.
These mats allow you to set the temperature according to seed requirements. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Biology lesson plans, labs, activities, experiments, and projects for high school life science teachers. The seed coat can be broken down as it passes through an animals digestive system, by microorganisms in the soil, by repeated freezing and thawing, or from mechanical wear. Seed germination here is a worksheet for parts of the seed. Make the acid solution by diluting household vinegar with water until a ph of 5 is obtained. This is important as many desert species have dormant seeds jurado and flores 2005. Such five changes or steps occurring during seed germination are. Altschuler ap biology period 3 background information introduction the lab conducted provides a broad understanding of plants basics by experimenting three different temperatures and their effects on radish seeds. This comes from a neuroscience lab manual that nabt published to members in 1996. One common option to achieve optimal germination temperature in growing media is to use germination mats. Many different factors can affect the germination percentage of plants. The effect of temperature and whether a seed has broken dormancy are.
Some are only available from the ap lab book, so i cannot post those online. It includes instructions about the experiment, information about seed germination, blank. Instead of planting your seeds in soil, you will plant them in a germination bag. Biology illustrated teaching notes, drawings and articles on plants. Germination and growth charts are located at end of lab notebook. Pass out the seed germination procedure worksheet 1. Seed germination and growth lab report what effect does temperature have on the germination and growth of radish seeds.
Use the scientific method to formulate a hypothesis and design an experiment investigating aspects of plant seed. Biology s assistant, just read the information below and collect and analyze the data from the experiment. Pdf seed dormancy is an innate seed property that defines the environmental. Pepper will not do as well as seeds germinated in water. The seed coat must be broken before germination can begin. By definition, germination commences when the dry seed, shed from its parent plant, takes up water imbibition, and is completed when the embryonic root visibly emerges through the outer. To calculate the germination rate, i took the number of seeds that germinated during that time and divided by 10. The germination process was not hindered by any of these elements with the seeds set to germinate at tap water, which explains why the most seeds germinated at the fastest rate. In agriculture and gardening, the germination rate describes how many seeds of a particular plant species, variety or seedlot are likely to germinate over a given period. Free biology 2e textbook available for download openstax. In this lab you will design your own investigation to explore a factor related to angiosperm seed germination. Start studying ap biology chapter 26 plant reproduction, germination, and hormones. Parts a, b and d are modified from the seed biology place.
Golovina, laboratory of plant physiology, wageningen university. View lab report seed germination lab ap biology from science 101 at ben davis high school. Biologys assistant, just read the information below. Exploring seed germination kansas association of biology. Editorial inquiries concerning this book should be directed to the college board. C1science experimentsprouting bean shape book, a printable book enchantedlearning. Experiment to study the effect of polluted water on seed germination of any crop. In order for a seed to germinate, conditions must be right. The equation to calculate germination percentage is. Information for the seed germination labwrite up slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
It is a measure of germination time course and is usually expressed as a percentage, e. Each student will design an experiment to test the effect of one variable on the germination of radish seeds. The packet of seeds had stated that germination would occur between 710 days. He has collected so much information from the experiment that he needs someone to analyze the data. Ap biology chapter 26 plant reproduction, germination, and. Seed germination processes and requirements page 3. Organized into six chapters, this book begins with a discussion on the importance and characteristics of seeds. Gather all of the materials needed to perform the experiment. Follow your teachers instructions to make a dilution of miracle gro. The seeds need to be germinating for the experiment. Under favorable conditions rapid expansion growth of the embryo culminates in rupture of the covering layers and emergence of the radicle. You have written things down on this paper, now it is time to organize the information into a formal report.
What is the difference, if any, in the rate of cellular respiration in germinating seeds. Ap biology investigative labs ap central the college board. The seed germination experiment can be completed within three weeks 21. Embryogenesis, which is a morphogenesis phase, starts with the formation of a singlecell zygote and ends in the heart stage when all embryo structures have been formed mayer et al. T he device that will be used to measure the oxygen consumption of the germinating seeds.
220 1293 266 326 1504 529 1069 1062 335 124 1433 1218 1588 497 580 1085 1371 566 210 91 504 1168 535 722 1604 402 1214 318 1321 438 1629 1405 404 1605 158 280 264 1428 1336 1480 1121 750 478 621 350 361 180 1295