Breaking the Dormancy of Liberica Coffee Seeds (Coffea liberica) Using Water Hyacinth Extract Riny Desvayona 1806124793 Department of Agrotechnology, Faculty of Agriculture, Riau University ABSTRACT Farmers of coffee have so far practiced generative propagation. Seed dormancy is a common issue in the production of generative coffee. The length of the germination process undoubtedly affe…