The Effect of Caffeine on Plant Growth

In my experiment, I needed to have five tomato plants that were all roughly the same size. I also needed five different liquids to water them with; I chose to use soda, salt water, tap water, carbonated water, and river water. I then needed five different pots each with

The effects of caffeine, especially caffeinated coffee, on human performance have been widely studied. Another study has been conducted to

Have you ever wondered how energy drinks, acidic juices and water affect plant growth rates? You’ve probably never wondered about that because it is not that common. So get ready to learn!

Coffee has an effect on more than just the brain, caffeine also affects a person calcium level. Calcium is good for a person’s bones and teeth. Calcium is used tom send signals between neighbouring molecules. Caffeine may trigger the plants to release a lot of calcium inside themselves and this could have a major effect on the growth of a plant.

The figure 5 represents the wet weight from the control and experimental groups. The data shows that cabbages weigh more than onions for pot #3 and #4. For pots #2 and #5, tomatoes weigh more than cabbages. For the control groups, 4 cabbages (pot #2) weigh more than 8 cabbages (pot #6).

Coffee does not actually slow down the growing process. Caffeine stimulates the nervous system. There are actually many vitamins in coffee that help cellular growth.

It was hypothesized that if bean plants were planted in four different brands of soil (Jiffy, Miracle-Gro, Scotts, and Vigoro), then the bean plant in Vigoro-the most expensive soil-would grow the tallest. The experiment supported the hypothesis. The hypothesis was supported because the plant in Vigoro had a growth average of 5.74 cm at the end of week 4, the highest amount of growth out of the four brands of soil. This indicates that Vigoro was the brand that caused the best amount of plant growth in the bean plants. Vigoro Organic and Natural soil contains a 0.09% Nitrogen and 0.06% Phosphate content (“Vigoro” n.d.). Both of these components are vital in a plant’s growth. Plants require nitrogen, and phosphorus to be supplemented by soil (“Plant” n.d.).

However, we wondered how fast it would take place over the course of seven days. We eventually came to the conclusion that coffee had the stimulant of caffeine within it and could possible stunt the growth of the duckweeds. Then on Day 3, we noticed a trend: the plants were growing roots, which was a good sign as they continued to do so until the end. We also noticed the unexpected color and mixture of the coffee changing within in each beaker. The coffee began to turn green and murky, a oily film even began to develop over the top of it. As the days increased our group took notice of the dissolved plants within bigger concentrations. On Day 5, we then began to notice a few unexpected dead duckweeds in higher toxicity levels. We discussed and reasoned since coffee includes many different ingredients, such as; potassium and phosphorus the duckweeds would increase in growth (Caffeine Informer Staff, 2017). Many of the duckweeds formed roots and began to expand in size which was a result of the coffee mixture. We also realized caffeine is a chemical stimulant and can enhance the biological process not only in humans but in plants at a stable rater: however, it can also kill plants due to the increase in acidity, which is toxic to the plants. When humans have caffeine it stimulates our central nervous system but due to the ingredients within it, it has a similar yet

This same substance makes the used coffee grounds an excellent fertilizer. If you mix used coffee ground with the soil you are going to use for planting, you will speed up the growth of the microbes in the soil. The nitrogen will provide the plant with nutrients as well.

The study “Caffeine levels and Plant Mortality” explains how caffeine can affect plant mortality during germination. In the study, high doses of caffeine reacted with the plants causing plant death. In the article scientists

INTRODUCTION In this experiment, a combination of solid/liquid extraction and liquid/liquid extraction will be used to extract caffeine from tea leaves. After “crude” caffeine is obtained, the caffeine will then be purified through the process of sublimation. DATA AND CALCULATIONS MASS OF CRUDE CAFFEINE: ______0.0189g______________ APPEARANCE OF CRUDE CAFFEINE (color, etc.): ____forest/olive dark green color, slightly yellow_______________ MELTING POINT OF CRUDE CAFFEINE: ___171.8° C-209°C____________ MASS OF SUBLIMATED CAFFEINE: ____0.0073g_____________________ APPEARANCE OF SUBLIMATED CAFFEINE (color, etc.): __on centrifuge “cold finger”: dark brown color, not dry powder_________ __in flask: off-white color, dry powder, more

The purpose of this research is to find out how nutrients, such as phosphorus and nitrogen affect plant growth. To find out how the plants are affected by growth in the different nutrient treatments. With the results found, what does this suggest about how people should fertilize the soil in which people grow food crops. Using the species of grass rye, the research investigates the effect of the absence of nitrogen and phosphorus.

Method: Fill the pots with soil. Plant the seeds into the pots. There will be four pots for each type of plant; 12 total. One pot is the control. The three other will be, one containing a low concentration of coffee ground mixed with water, the next containing a bit higher concentration of coffee ground mixed with water, and the last with the highest concentration of coffee ground mixed with water. Water the plants with regular water until they

All plants have caffeine enzymes. These enzymes are members of N-methyltransferases. When leaves drop off plants that contain caffeine, this will fertilize the soil with caffeine. (Grant, 2016) The amount of caffeine that the soil is contaminated with will determine the growth of the plant. Too much caffeine in the soil may have a bad effect on the plants growth and structure. Caffeine affects the ability for plants to photosynthesize and collect it’s nutrients. (Grant, 2016) Caffeine increases the biological process in plants. Caffeine may increase the pH level in the soil which may be toxic to some plants because of the acidity in the soil. Caffeine may also keep insects off the plants. (Grant, 2016)

Question- Do Lima beans grow faster when they are watered with sugar water rather than tap water?