Enhancement of organic supplements and local fertilisers in culture medium on growth and development of Phalaenopsis 'Silky Moon' protocorm

6-Benzyladenine (BA), 100 g l -1 potato juice, 2.0 g l -1 peptone, 30 g l -1 sucrose, 1.0 g l -1 activated charcoal and 2.0 g l -1 Phytagel. A local commercial fertiliser, Viking Ship (10N-20P-30K), with or without Saturn fert was used to compare the effects of organic supplements and fertilisers on growth and development of explants. All explants were cultured for 10 weeks. The medium containing 0.75 g l -1 Viking Ship with 1.0 g l -1 Saturn fert provided significant higher number of PLBs per explant (24.4) with new plantlets per explant (8.3) than values (17.0 PLBs and 2.4 new plantlets per explant) obtained from the medium containing 1.0 g l -1