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Nutrients in Glycine max amidst Temperature Increase

What effect does temperature have on nutrients in Glycine max?

Supervising teacher

Mrs Laurie Fuhr


Grant Arnold


Carroll High School

Supporting files

  • pdf
    Temperature effects on nutrients in Glycine max

  • This study was completed in order to evaluate the relationship between temperature and content of elements such as potassium, iron, and zinc. Soybean (Glycine max) seeds were grown at two temperatures, 25 and 32 degrees Celsius, and all other variables were kept constant. Plants were monitored for 30 days under constant temperatures before being tested for levels of a variety of elements by Spectrum Analytic laboratory. Notable elements which increased in content when grown in higher temperatures were nitrogen, phosphorus, and potassium. The most notable elements which decreased were iron, calcium, and manganese, along with almost all other micronutrients tested. Micronutrients are smaller quantity nutrients required for growth, as opposed to the three main macronutrients, being N, P, and K. An increase in nitrogen levels in higher temperatures was associated with a shift in almost all other elements to trend downward, especially micronutrients, a relationship affirmed by background research.

    As a result of this study, increased temperature was correlated to a decrease in micronutrient content. The research conducted is a testament to the need to accelerate climate change mitigation and advancements in climate and plant science in order to accommodate the needs of human biology as Earth changes. Decreases in element content of rice for example are significant considering “an estimated 600 million people would be heavily affected by these decreases” (Chen, 2018). Simultaneous decreases in multiple elements in the future, as this study supports, including iron, calcium, magnesium, boron and others, will clearly have a devastating effect on the food industry and thereby humans.