Root induction of Phalaenopsis amabilis with various types and concentration of banana extract by in vitro

Root induction is an important step in plant propagation vitro. stimulation can occur the presence of hormones auxin and gibberellins which be obtained from other plants, one bananas. The research aims to determine effect various species concentrations banana extract on Phalaenopsis amabilis root was conducted Laboratory Tissue Culture Alifa Agricultural Research Center (AARC), Medan, North Sumatera, May until July 2020. used a Factorial Completely Randomized Design (CRD) with 2 factors, first factor type 3 levels, consisting Ambon, Raja, Kepok. second concentration (C) 4 50 g/l, 100 150 200 g/l. results showed that had significant number roots, but bananas interaction no