The Effect of NAA Concentration and Different Parts of Stem on Growth of Patchouli (Pogostemon cablin Benth.)

The need for patchouli is increasing with the increase of population and the development of the cosmetics industry. The supply of healthy and of high production patchouli cutting is necessary to ensure the optimum of production. The purpose of this study was to determine the effect of NAA concentration and the right parts source of cuttings and the interaction between the two on the growth of patchouli. The study was conducted in the Experimental Field and Plant Physiology Laboratory of the Faculty of Agriculture, Universitas Syiah Kuala, Banda Aceh, in January to April 2019. The study used a factorial randomized block design with a 4x3 factorial pattern with three replications. NAA was applied using Growtone, a brand with an NAA concentration of 3%. Factors studied were Growtone concentration at 0, 4.0, 8.0, and 12.0 g L water, and parts of stem source (shoots, middle, and base). The results showed that the best growth of patchouli cuttings was at Growtone concentration of 4.0 g L water, while the best shoot length and leaf area was found in the treatment of Growtone concentration of 12.0 g L water. Meanwhile, the best growth of patchouli cuttings was found in the stem taken from the shoot’s part. There was no significant interaction between NAA concentration and the source of the different parts of stem on the growth of patchouli.