lï¬'t'ï¬tm tie Es'tlttl'ios' Fotosintdtt'ros _v Biorgttti'nit'os t'C'EFUBfj, ... However. the ï¬our failed to develop properly without mixing with control ï¬our because the rate of mixing was insufï¬cient ..... cuitiy'ar which would prot-ide a more suitable back-.