2.3. Source of Materials
2.3.1 Growth Substrates
Three agro-waste materials were used as substrates in
this study. These include plantain (Musa paradisiaca,
AAB Group) leaves, cotton (Gossypium sapiens) wastes
and maize (Zea maize) husk. Plantain leaves and maize
husks were collected from the University of Port Harcourt
teaching and research farm, while cotton waste was
obtained from Atlantic textile mills in Lagos, Nigeria.