PENGARUH APLIKASI BENZIL AMINO PURIN TERHADAP MULTIPLIKASI TUNAS TALAS (Colocasia esculenta L.) SECARA KULTUR JARINGAN

One way to produce seeds in a short time is through vegetative propagation by in vitro culture. This study aims to determine the effect of the application of a certain concentration of Benzyl Amino Purine (BAP) on the multiplication of taro shoots ( Colocasia esculenta L.). The research conducted at the Laboratory of the Food and Agriculture Security Service of Bogor City, in August 2020 – February 2021. The test was carried out with BAP concentration as a single factor in completely randomized design. Concentration of BAP with 4 treatment levels and one control. The treatments of growth regulators (ZPT) were P0 (Control), Pl (0.5 mg/L BAP + 0.2 mg/L NAA), P2 (1 mg/L BAP + 0.2 mg/L NAA), P3 (1.5 mg/L BAP + 0.2 mg/L NAA), P4 (2 mg/L BAP + 0.2 mg/L NAA). The replications number for each treatment and control level was 4, so that the total experimental units were 20. Observation parameters included height of shoot, number of shoots, leaves, and roots. This research showed that the application of BAP on Murashige and Skoog basic media affected the number of shoots also the roots in the multiplication of taro plants. The P2 was the best treatment in stimulating the multiplication of bentul taro plants in vitro. This treatment could induce shoot height, number of shoots, and leaves while the P1 treatment increased the number of roots.