The Effects Of Plant Growth Regulators (Naa+Bap) And Explant Types On Propagation Buds Of Asam Gelugur (Garcinia Atroviridis Griff)

The research was aimed to determine the effect rasio combination of Naphthaleneacetic acid (NAA) and 6-Benzylaminopurine (BAP) plant growth regulators and explant types of Asam Gelugur plant (Garcinia atroviridis Griff) and their interaction in the Murashige Skoog (MS) media. This research was conducted in the Tissue Culture Laboratory, Faculty of Agriculture, Universitas Sumatra Utara, Indonesia in February until June 2018. The research was used the completely randomized design with 2 treatment factors with three replications. The first factors is combination of NAA and BAP dosage with nine rates, including G1 (0.2 mg.l-1 NAA + 0.5 mg.l-1 BAP); G2 (0.2 mg.l-1 NAA + 1 mg.l-1 BAP); G3 (0.2 mg.l-1 NAA + 1.5 mg.l-1 BAP); G4 (0.4 mg.l-1 NAA + 0.5 mg.l-1 BAP); G5 (0.4 mg.l-1 NAA + 1 mg.l-1 BAP); G6 (0.4 mg.l-1 NAA + 1.5 mg.l-1 BAP); G7 (0.6 mg.l-1 NAA + 0.5 mg.l-1 BAP); G8 (0.6 mg.l-1 NAA + 1 mg.l-1 BAP); and G9 (0.6 mg.l-1 NAA + 1.5 mg.l-1 BAP). The second factors is the explant types such as apical shoot (E1) and axillary bud (E2). The results were showed that the addition of 0.2 mg.l-1 NAA + 1 mg.l-1 BAP (G2) in the MS media had significant effect on the percentage of bud formed, number of buds, length of buds, and number of leaves. The axillary bud explant (E2) had significant on the number of buds. The interaction of E2G2 had significant on the number of

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