Allelopathy Lab Report
Michele Baden
Bio 100 – 05
ALLELOPATHY
INTRODUCTION The purpose of this lab was to observe the effects of chemical warfare among plants. Plant seeds compete with other plants and seeds, for sunlight, and nutrients in order to germinate. In order to win dominance over other seeds, and reduce competition, plants produce and release a chemical in order to prevent other seeds from germination. This type of chemical warfare is referred to as allelopathy. Allelopathy exists in many parts of the plants such as leaves, roots, stems, or fruits, but not limited to just the plants. These toxic chemicals can also be found in the surrounding soil, to prevent other plants or seeds from absorbing proper nutrients to stimulate growth. Groups will test …show more content…
Please notice the attached page for the data of each seed. In the Petri dish labeled “hollycock”, Experiment Group A. the group tested a total number of twenty (20) radish seeds (Raphanus sativus), out of the twenty (20) seeds, there was only a twenty-five (25) percent of germination, and only five (5) seeds had actually germinated. The length of each seed varied in lengths from the shortest, three (3) millimeters to the longest fourteen (14) millimeters. Each length of all twenty (20) seedlings were added up and divided by twenty (20) and the group averaged 2.7 millimeters in length of the germinated seedlings. In the second Petri dish labeled “control”, Experiment Group B, out of the twenty (20) radish seeds tested with just distilled water, a percentage of eighty-five (85) percent of successful germination, and the actual number was seventeen (17) actually germinated. The length of these seeds varied in sized from the shortest of seven (7) millimeters to the longest of ninety-two (92) millimeters. Each length of all germinated seeds from the controlled group were added up and then divided by twenty (20) and the average length of the germinated seedlings is 19.35
Bio 100 – 05
ALLELOPATHY
INTRODUCTION The purpose of this lab was to observe the effects of chemical warfare among plants. Plant seeds compete with other plants and seeds, for sunlight, and nutrients in order to germinate. In order to win dominance over other seeds, and reduce competition, plants produce and release a chemical in order to prevent other seeds from germination. This type of chemical warfare is referred to as allelopathy. Allelopathy exists in many parts of the plants such as leaves, roots, stems, or fruits, but not limited to just the plants. These toxic chemicals can also be found in the surrounding soil, to prevent other plants or seeds from absorbing proper nutrients to stimulate growth. Groups will test …show more content…
Please notice the attached page for the data of each seed. In the Petri dish labeled “hollycock”, Experiment Group A. the group tested a total number of twenty (20) radish seeds (Raphanus sativus), out of the twenty (20) seeds, there was only a twenty-five (25) percent of germination, and only five (5) seeds had actually germinated. The length of each seed varied in lengths from the shortest, three (3) millimeters to the longest fourteen (14) millimeters. Each length of all twenty (20) seedlings were added up and divided by twenty (20) and the group averaged 2.7 millimeters in length of the germinated seedlings. In the second Petri dish labeled “control”, Experiment Group B, out of the twenty (20) radish seeds tested with just distilled water, a percentage of eighty-five (85) percent of successful germination, and the actual number was seventeen (17) actually germinated. The length of these seeds varied in sized from the shortest of seven (7) millimeters to the longest of ninety-two (92) millimeters. Each length of all germinated seeds from the controlled group were added up and then divided by twenty (20) and the average length of the germinated seedlings is 19.35