The Effect of Sodium Chloride on Pennisetum clandestinum

Overview

Objectives The objective of this study was to discover a concentration of sodium chloride in water that would negativity effect Pennisetum clandestinum without harming other turf grass. Methods I built a temperature and lighting controlled greenhouse to grow 36 specimens of Pennisetum clandestinum and 36 lawn grass turf samples. Each sample received the same amount of water and light. I introduced different concentrations of sodium chloride in water once all samples were established. My controls did not receive any sodium chloride in their water solution. I measured the mass of each sample after finishing my experiment to determine the effect of the different concentrations of sodium chloride in water. Results I found that concentrations of 35 grams of sodium chloride and higher per liter of water was effective in controlling Pennisetum clandestinum. Concentrations of 20 grams of sodium chloride per liter of water seemed to have minimal effect on Pennisetum clandestinum growth. Any concentration of sodium chloride had a negative effect on the lawn grass growth. Conclusions My results showed that Pennisetum clandestinum is more tolerant to sodium chloride than my lawn grass. This means that sodium chloride is not effective in controlling Pennisetum clandestinum in lawn grass. My results are still interesting since Pennisetum clandestinum is tolerant to high levels of sodium chloride it may be possible to grow it where conditions are not favorable to other types of grasses.

Competition history

• CSEF 2019 Toxicology · Entry J2121

Resources

• CSEF project summary ↗

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