Title

The Effect of Streptomyces griseus at Different Temperatures on the Growth of Brassica rapa in Saline-Sodic Soil

School Name

Spring Valley High School

Grade Level

10th Grade

Presentation Topic

Botany

Presentation Type

Non-Mentored

Abstract

Climate change and saline-sodic soils are current issues in the world. They negatively affect the growth of plants, resulting in issues for living things such as animals that eat plants and need them to survive. The purpose of this experiment was to compare the plant growth of Brassica rapa at different temperatures while being affected by another stress factor, saline-sodic soil. In this experiment, there was a constant concentration of 5% saline in soil but the temperature was 20℃, 30℃, or 40℃. It was hypothesized that in an environment of 40℃ and 5% salt concentration, Brassica rapa growth would grow more rapidly than in an environment of 20℃ because Brassica rapa are grown optimally at 30℃, which is in the summer, and therefore will be used to the fluctuation of 30℃ to 40℃. A hydroponics system was made to grow the plants in this experiment. Each group was then put in soil with 5% salt and a gram-positive bacteria, Streptomyces griseus to remediate the soil. Then each group was put in either 20℃, 30℃, and 40℃ for a week. The results showed that the average heights were 3.807 cm for 20℃, 6.140 cm for 30℃, and 5.617 cm for 40℃. Then, Data were statistically analyzed with a one-way ANOVA test at an alpha value of 0.05. The data was statistically significant, since p-value was <0.001 Therefore, it can be concluded that multifactorial stress factors that include temperature change and saline-sodic soil significantly impacts plant growth.

Location

ECL 103

Start Date

3-25-2023 9:00 AM

Presentation Format

Oral and Written

Group Project

No

COinS
 
Mar 25th, 9:00 AM

The Effect of Streptomyces griseus at Different Temperatures on the Growth of Brassica rapa in Saline-Sodic Soil

ECL 103

Climate change and saline-sodic soils are current issues in the world. They negatively affect the growth of plants, resulting in issues for living things such as animals that eat plants and need them to survive. The purpose of this experiment was to compare the plant growth of Brassica rapa at different temperatures while being affected by another stress factor, saline-sodic soil. In this experiment, there was a constant concentration of 5% saline in soil but the temperature was 20℃, 30℃, or 40℃. It was hypothesized that in an environment of 40℃ and 5% salt concentration, Brassica rapa growth would grow more rapidly than in an environment of 20℃ because Brassica rapa are grown optimally at 30℃, which is in the summer, and therefore will be used to the fluctuation of 30℃ to 40℃. A hydroponics system was made to grow the plants in this experiment. Each group was then put in soil with 5% salt and a gram-positive bacteria, Streptomyces griseus to remediate the soil. Then each group was put in either 20℃, 30℃, and 40℃ for a week. The results showed that the average heights were 3.807 cm for 20℃, 6.140 cm for 30℃, and 5.617 cm for 40℃. Then, Data were statistically analyzed with a one-way ANOVA test at an alpha value of 0.05. The data was statistically significant, since p-value was <0.001 Therefore, it can be concluded that multifactorial stress factors that include temperature change and saline-sodic soil significantly impacts plant growth.