title: A simple apparatus for measuring hardness of agar and Gelrite plates.
abstract: A simple apparatus for measuring hardness of Gelrite and agar plates, that can be easily fabricated, is described. It gives reproducible results comparable with those obtained with expensive commercial equipment. It has been successfully used to improve enumeration ofThiobacillus ferrooxidans andT. thiooxidans on solid media plates.
authors.affiliation: Biotechnology for Minerals & Fossil Fuels, National Institute for Biotechnology and Genetic Engineering, P.O. Box-577, Jhang Road, Faisalabad, Pakistan.
authors.forename: A M
authors.initials: AM
authors.lastname: Khalid
authors.forename: T M
authors.initials: TM
authors.lastname: Bhatti
authors.forename: M
authors.initials: M
authors.lastname: Shoukat
authors.forename: G
authors.initials: G
authors.lastname: Qadir
authors.forename: M N
authors.initials: MN
authors.lastname: Hayat