For his REU, Ben Lee designed an experiment to test different methods of seed collection and sorting on Galium boreale. In the 2015 fall burn unit of Hegg Lake WMA, he placed six square ten by ten meter plots around patches of Galium. Ben randomly selected three plots to be machine harvested and the other three plots were chosen to be hand harvested. Hand harvesting was conducted by two team members at one time whereas machine harvesting was done by one person using a modified STIHL Shredder Vac. After harvest, Ben randomly selected three plots for machine sorting and the other three for hand sorting. Machine sorting was done using the dockage tester at the Hoffman Grain Elevator and hand sorting was done by pushing seeds through a standard window screen to remove the duff. Ben found no significant difference in efficiency (g/min) between the two harvest methods but did find that machine sorting is significantly more efficient than sorting by hand.
The team at Hegg, close to Ben’s plots
Start year: 2015
Location: Hegg Lake WMA
Products: Ben wrote a report and created a poster that was presented at his school’s (St. Mary’s College of Maryland) summer research symposium. The poster can be found here.
