Testing alternative binders for biochar-based seed coatings

“Precision seeding” is a new approach to forest restoration that seeks to place tree seeds in locations to maximize establishment success using drone technology. Coating seeds with biochar – a form of charcoal made from waste materials – is a new innovation in this area, but it is necessary to find the right binding agent to make biochar adhere to seed coats but not interfere with seed germination. Polyvinyl acetate (PVA), a type of white glue, has previously been used, but PVA can inhibit seed germination. The proposed research will test alternative binding agents for this application, examining their effects on physical properties and germinability of coated seeds and establish trials to test this approach in the field. This work will help develop this innovative approach for reforestation and is a main focus of partner Seed the North, a startup company focused on seed-based restoration in northern forests in Canada.

Faculty Supervisor:

Sean Thomas

Student:

Partner:

Seed the North

Discipline:

Life Sciences

Sector:

Manufacturing

University:

University of Toronto

Program: