In Vitro Rooting of Orchids with the addition of Indole Butic Acid (IBA) and Activated Charcoal
Fauziyah Harahap1[*], Ermila Hafni Nasution2, Hasruddin1, Syahmi Edi1, Cicik Suriani1, Abdul Hakim Daulae1, Nurul Huda Panggabean1, Anita Kairani1, Diky Setya Diningrat1

Universitas Negeri Medan

Abstract

The beauty of Cattleya sp. lies in the beauty of flowers and the variety of colors. However, the propagation of orchids is very difficult to do naturally because small orchids, no endosperm and takes a lot of time. This study aims to determine the influence of the environmental composition of Cattleya sp. Explosives are taken from Seedling Buds of Cattleya sp.. Orchid. with IBA treatment (0, 0.5 and 1) ppm, activated charcoal (0, 0.5, 1 and 1.5 gr/l). The explosives were cultured on Murashige and Skoog (MS) medium with some combination of IBA (indole butyric acid) and activated charcoal. The results showed that IBA and activated charcoal had no significant effect on the number of roots but had a positive effect on root length. The best root length was found when treating MS IBA 0 ppm activated charcoal 0 gr/l. IBA interaction had a positive effect on leaf number and seedling height. The presence of activated charcoal in the medium can absorb harmful substances in the environment and provide a good physical environment for the seedlings. High concentrations of IBA can also inhibit the growth of seedlings of Cattleya sp.

Keywords: Rooting, Orchid Cattleya sp, IBA, Activated charcoal

Topic: Biology and Biology Education