Plant Hormones Lab Report

There are several different types of plant hormones some of which inhibit or promote growth in the plant. There are also synthetic varieties of these plant hormones, specifically the plant hormone auxin which has many different synthetic compounds. There is not much data on the impact that these synthetic hormones have on plants growth rate in pea plants. In order to understand the impacts of synthetic auxin an experiment was conducted using natural auxin, naphthaleneacetic acid, and indolebutyric acid. Three seeds were placed in 4 pots each, one pot functioned as a control group with no added hormone. A hormone solution for each type of auxin was created and added over four weeks. Each of the plants received an equal amount of water, light, and was exposed to equal amounts of light. After collecting the height data in centimeters it was determined that indolebutyric acid had the highest rate of growth of all the plant groups. Based on the data it can be concluded that synthetic auxin has a almost as much of an impact on pea plant growth as natural auxin. However the synthetic auxin naphthaleneacetic acid is not as effective as natural auxin or its counterpart indolebutyric acid.

Introduction Hormones play a foundational role in the …show more content…
This position in the food chain allows plants to sustain life on Earth through agriculture. Plants have many other significant contributions to human life such as providing a source of medicinal properties for pharmaceuticals and other industrial uses (Dunn, 2013). For this reason, it is important to study the nature of plant growth in order to maximize the available resources that naturally grow on Earth. In this experiment a plant growth hormone called auxin and its synthetic counterparts will be tested in order to determine their effectiveness on plant