Student Research Reports
A Comparative Study of Soil Quality Affecting the Density and Growth of Beach Morning Glory (Ipomoea pes-caprae) and Sea Bean (Canavalia rosea) Along the Mangrove Forest Edge at Laem Yong Star, Trang Province
Organization(s):Wichienmatu
Country:Thailand
Student(s):Miss Aphitchada Aiadkoed
Miss Natcha Thingha
Miss Sirisa Wongwun
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Educator(s):Thamonwan Bunchuay
Contributors:Mrs.Kwanjai Kanjanasrimek
Mrs.Sutreera Thacheen
Report Type(s):International Virtual Science Symposium Report
Protocols:Soil Moisture - Gravimetric, Soil Particle Density, Soil pH, Soil Temperature
Presentation Poster:
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Language(s):English
Date Submitted:03/05/2025
This research aims to compare soil quality affecting the density of Beach Morning Glory (Ipomoea pes-
caprae) and Sea Bean (Canavalia rosea) along the mangrove forest edge. The study examines the physical
characteristics of the soil, pH level, temperature, moisture content, and the density of both plant species,
which serve as indicators of soil quality in different study areas.The findings indicate that Beach Morning
Glory and Sea Bean have similar average values. The average soil moisture content for Beach Morning
Glory is 10, while for Sea Bean, it is also 10. The average soil temperature for Beach Morning Glory is
21.33°C, and for Sea Bean, it is 21.83°C. The average pH value for Beach Morning Glory is 6.33, whereas
for Sea Bean, it is 6.39. The average plant density of Beach Morning Glory is 8.33, while for Sea Bean, it
is 8.67.The soil quality in the areas where Beach Morning Glory and Sea Bean grow is similar. The
moisture content is the same, the temperature differs slightly, the pH levels are nearly identical, and the
plant density varies slightly. Overall, the soil quality in these areas does not show significant differences.
Therefore, the pH level, temperature, and moisture content do not significantly affect the plant density and
growth of Beach Morning Glory and Sea Bean.