Does extra carbon dioxide (CO2) stimulate duckweed growth?
Projects and Laboratory Exercises This is a collection of ideas and links to sites with suggested experiments. Some of the links provide complete packages of materials, including protocols, data sheets and report formats. Others are more sketches of projects or suggestions. Many of them involve counting fronds to measure population growth, but many other biological or chemical parameters can easily be investigated using these plants. Two examples are plant dormancy and the growth and function of roots. Right: Spirodela collected from a wetland. • See inside the plant: A simple method of clearing and staining duckweeds will allow students to visualize the hidden structures of the frond using a magnifier or microscope.