Using the data from the chart like the one below from your lab handout, under which 2 colors of light did lettuce plants have the most amount of growth?
Using the data from the chart like the one below from your lab handout, under which 2 colors of light did lettuce plants have the most amount of growth?
Blue
Green
Violet
Orange
Answer (1)
Calculate the average height of lettuce plants under red light: 3 16 + 22 + 17 = 18.33 cm.
Recognize that the average heights for Orange, Green, Blue, and Violet light are missing from the table.
Acknowledge that without the average heights for all colors, it's impossible to determine the two colors with the most lettuce growth.
State that additional data is needed to provide a complete answer.
Explanation
Understanding the Problem The problem asks us to find the two colors of light under which lettuce plants had the most growth, based on the data in the chart. Since the chart only provides individual height measurements for lettuce plants grown under red light, we will assume that the average heights for the other colors (Orange, Green, Blue, and Violet) are provided elsewhere or can be considered as variables if needed. For the red light, we need to calculate the average height of the lettuce plants.
Calculating Average Height for Red Light To find the average height of lettuce plants under red light, we sum the individual heights and divide by the number of plants. The individual heights are 16 cm, 22 cm, and 17 cm. So, the average height is calculated as follows:
( 16 + 22 + 17 ) /3 = 55/3 = 18.333...
Rounding to two decimal places, the average height of lettuce plants under red light is approximately 18.33 cm.
Identifying the Two Colors with Most Growth Since we don't have the actual average heights for lettuce plants under Orange, Green, Blue, and Violet light from the provided table, we cannot definitively determine the two colors of light with the most growth. However, if we assume that the question implies that we should only consider the red light data provided, then we can say that we only have data for red light. To answer the question, we need the average heights for the other colors of light as well. Without that information, we can't determine which two colors resulted in the most growth.
Final Answer Based on the available data, we can only determine the average height of lettuce plants under red light, which is approximately 18.33 cm. To answer the question completely, we need the average heights for lettuce plants under Orange, Green, Blue, and Violet light. Since this information is missing, we cannot identify the two colors of light under which lettuce plants had the most amount of growth. However, if we were given the average heights for all colors, we would simply compare the averages and select the two highest values.
Examples
Understanding how different colors of light affect plant growth is crucial in agriculture and horticulture. For example, greenhouses often use specific wavelengths of light to optimize the growth of vegetables like lettuce. By identifying the most effective light colors, farmers can increase crop yields and improve the nutritional content of their produce. This knowledge is also valuable in designing indoor vertical farms, where light color can be precisely controlled to maximize plant growth in limited spaces. Furthermore, this concept extends to understanding how natural light affects plant growth in different geographical locations and seasons, influencing agricultural practices worldwide.
