Radish And Colard Lab
Radish and Collard lab
Intro
Purpose: To see if the population density affect the growth (mass) and germination of individuals of two species growing alone and in mixed species groups. Hypothesis: If planted like treatment 1 (8 collards) and 4 (8 radish) then it will have a higher mass and a greater germination percentage. If the plant is planted with a smaller population density and has intraspecific competition then the radish and collard will have higher germination percentages and mass averages.
Constants: Pots, temperature, soil, seeds, amount of light, water
Independent Variable: Type of seed planting
Control: Treatment 1 and 4
Constants: Pots, temperature, soil, seeds, amount of light, water
Dependent Variable: Mass of radish and collards, …show more content…
The first error was that even though one person watered all the plants, some pots could have received more water than others. Secondly, due to the fact that different groups were given different treatments the seeds were not planted in the same way. It can be seen in the pictures that some of the groups clumped the seeds together. Especially the groups that had to plant 64 seeds had trouble planting the seeds in a certain way. Also there could have been error in the number of seeds planted because there could have been a miscount. The seeds also could have been crushed or had a malfunction already before being planted. Also due to the inconsistency of the planters some seeds could have been planted deeper than others. Lastly, when measuring the mass all the soil was not removed from each plant. This added weight to these plants. However, overall the errors were human made errors. However, there are solutions to some of these errors. The first solution is that each day the plants are watered the amount of water added to each pot is measured out. The second solution is that before planting the seeds measure out the amount of soil placed under the seeds then put in the seeds. Afterwards, measure out the amount of soil put in on top making sure the seeds are planted with the same depth. Lastly, in order to get a more accurate mass average measure out the weight of the soil and pot before the seeds have grown. Then, after 10 days of allowing the plant to grow subtract the new mass with the old mass, and this will be the mass of the plants
Intro
Purpose: To see if the population density affect the growth (mass) and germination of individuals of two species growing alone and in mixed species groups. Hypothesis: If planted like treatment 1 (8 collards) and 4 (8 radish) then it will have a higher mass and a greater germination percentage. If the plant is planted with a smaller population density and has intraspecific competition then the radish and collard will have higher germination percentages and mass averages.
Constants: Pots, temperature, soil, seeds, amount of light, water
Independent Variable: Type of seed planting
Control: Treatment 1 and 4
Constants: Pots, temperature, soil, seeds, amount of light, water
Dependent Variable: Mass of radish and collards, …show more content…
The first error was that even though one person watered all the plants, some pots could have received more water than others. Secondly, due to the fact that different groups were given different treatments the seeds were not planted in the same way. It can be seen in the pictures that some of the groups clumped the seeds together. Especially the groups that had to plant 64 seeds had trouble planting the seeds in a certain way. Also there could have been error in the number of seeds planted because there could have been a miscount. The seeds also could have been crushed or had a malfunction already before being planted. Also due to the inconsistency of the planters some seeds could have been planted deeper than others. Lastly, when measuring the mass all the soil was not removed from each plant. This added weight to these plants. However, overall the errors were human made errors. However, there are solutions to some of these errors. The first solution is that each day the plants are watered the amount of water added to each pot is measured out. The second solution is that before planting the seeds measure out the amount of soil placed under the seeds then put in the seeds. Afterwards, measure out the amount of soil put in on top making sure the seeds are planted with the same depth. Lastly, in order to get a more accurate mass average measure out the weight of the soil and pot before the seeds have grown. Then, after 10 days of allowing the plant to grow subtract the new mass with the old mass, and this will be the mass of the plants