Lincoln Peas Lab Report

The experiment was begun by obtaining four 8 oz. Styrofoam cups and punching a hole through the bottom of them. This hole was for water entry or excess water drainage. Moistened soil was packed to the 1/2 full line in the cup along with 3 fertilizer pellets The cups were labeled the following: Rosette-H20, Rosette-GA, Wild-Type-H2O, and Wild-type- GA.(Handout 1) A small wooden applicator stick was obtained a moistened at the tip with water from the petri dish labeled ‘water.’ This was to be able to attract the seed to the applicator in order to place the seed from its original container into

For my seed experiment I had decided to see what the effect of sprinkling salt on a radish seed would be. So for my control group I had set six (6) cherry radish seeds in between a damp paper towel and then closed it within a Ziploc bag. For my experimental I had set it up the exact same way as the control group but I would sprinkle salt on top of seeds before I zipped up the baggie. I sprinkled the salt on the experimental seeds and dampened the paper towel once every day. Each bag was stored in the light and at room temperature (~70° F.)

Germination is the stage of plant growth through which a seed becomes a seedling plant. First, the seed begins to absorb water and the radicle root emerges from the seed coat and into the water. Then, the primary roots grow, the cotyledons move above ground, the stem begins to grow, and leaves develop. The process is complete when the first leaves open and the cotyledons fall off (The Learning Garden 2001).

The germination process begins when water and oxygen are pulled into the seed by the seed’s coating. The embryo’s cells grow bigger as water and air

Round seeds (R) are dominant to wrinkled seeds (r), and yellow seeds (Y) are dominant

This then not only prevents the germination of the seed; however, if the plant were to initially germinate, it would be unable to grow any further, as without enough water, photosynthesis, nutrient transfer, or transpiration would be unable to occur; therefore, the plant would be unable to sustain (Growing Anything,

Therefore, I was correct in my hypothesis that dark will have an effect on the germination of radish seeds. Also, I was very close in predicting that the seeds grown in the light will germinate twice as much as the seeds grown in the dark; the control seeds grew a little less than double the size of the experimental seeds. Ultimately, my experiment proved that light is a very important factor in the growth of any plant. However, I’ve learned that seeds grown in the dark will germinate, though slowly, as

Two seeds were planted in the same garden. The arid soil gave the seeds little

Conclusion: I decided to record 4 days of the experiment (for time reasons) and base observations off of the results I viewed during those four days to help me determine what the outcome would be in a week’s time. The results I found were that it took three days to notice the beginning of bean germination when the beans were placed outside in the sunlight, and 4 days to notice a little stem when the beans were placed in room temperature in sunlight. Throughout the four-day

Osmosis is defined as the tendency of water to flow through a semipermeable membrane to the side with a lower solute concentration. Water potential can be explained by solutes in a solution. The more positive a number is more likely it will lose water. Therefore should water potential be negative the cell the less likely it will lose water. In using potatoes the effects of the molarity of sucrose on the turgidity of plant cells. According to Clemson University, the average molarity of a White potato is between .24 M and .31 M when submerged in a sorbitol solution. This experiment was conducted with the purpose of explaining the relationship found between the mass in plants when put into varying concentrations of sucrose solutions. Should the potatoes be placed in a solution that contains 0.2M or .4M of sucrose solution it will be hypotonic and gain mass or if placed in .6M< it will be hypertonic and lose mass instead. Controlled Variables in this lab were: Composition of plastic cups, Brand of Russet Potatoes, Brand of Sweet Potatoes and the Temperature of the room. For independent variable that caused the results recorded it was the different Sucrose concentrations (0.0M, 0.2M, 0.4M, 0.6M, 0.8M, 1M). The dependent variable was the percentage change from the initial weighs to the final. The cup with .4 molarity was the closest to an isotonic solution and was used as the control group for the lab. Water potential is the free energy per mole of water. It is

Describe the process of germination and plant growth you observed in the lab activity for a dicot plant.

In the article “Seed” William DiMichele discusses the development of seeds. A seed is a part of a plant, that is capable of creating another plant. Inside a plant's ovules, seeds are created. A seed can either be categorized by enclosed or naked, this is based on whether or not they are based on angiosperms or gymnosperms. Inside a seed, the embryo is where the plant grows, the food storage system provides nutrients, and the seed coat protects the internals of the seed. Seeds are created through sexual reproduction, through plant spores acting as reproduction cells. The movement of a seed can be influenced by many outside forces such as wind, water, animals, or people. After seeds

Abstract: The purpose of this experiment was to identify the internal concentration of potato cells when soaked in solutions with different sucrose concentrations. During this experiment, potato tuber segments were soaked in solutions containing 0 M, 0.1 M, 0.2 M, 0.3 M, 0.4 M, and 0.5 M of sucrose for one hour. After the allotted time, the potato segments that were soaked in the 0.5 M solution (the highest concentration) decreased in mass, and the segments soaked in the 0 M solution (the lowest concentration) increased in mass. Therefore, the alternative hypothesis was supported because the concentration of sucrose in the solution affected the percent change in mass of the potato segments.

The results of the experiment demonstrate that if Acacia decurrens seeds are subjected to the heat treatment by placing the seeds in boiling water and leaving them in that same water for a period of 24 hours, then the rate at which the seeds germinate will be affected. It can be suggested that this increased germination rate occurs because the boiling water, by which the seeds were soaked in, breaks down the hard coating on the outside layer of the seed, thus allowing the seedling to penetrate through the coating and begin the germination process. This controlled

Low germination rates reduce crop density, which results in indirect yield loss. Late emergence can result in poor plant performance and a direct yield loss [4], because roots are inadequately established and have less access to water and nutrients during later stages of vegetative and reproductive growth. Our knowledge of the regulation of seed germination has developed greatly in recent times, yet understanding of the genetic and mechanical basis for seed vigour differences is limited. By enhancing the seedling vigour trait, the agricultural industry might attain a remarkable advancement and increment in plant development. Seed vigour contributes directly to the economic success of commercial crops (Finch-Savage, 1995) and seed companies therefore need to have the means to obtain a reliable estimate of seed vigour in order to be able to supply growers with seed lots of high vigour.This will increase the margin of profit by reducing cost of production and increasing productivity. Thus, seed vigour, if enhanced, will result in substantial savings. Keeping in view the above information, this paper will be beneficial in determining the genetic and mechanical basis of seed vigour.