Rooted cuttings by IBA (Indole butyric acid) and NAA (Naphthalene acetic acid) in black pepper (piper nigrum) - A case study in Vietnam

Abstract

In order to investigate the effect of IBA (Indole Butyric Acid) and NAA (Naphthalene Acetic Acid) on rooted cuttings, there were two experiments were conducted. The first experiment was two factor experiment where IBA and NAA were applied as different concentrations to main stems (cuttings). There were 14 treatments and 4 replications, including 20 pots/treatment; 1,120 pots in total. Similarly, the second was also two factor experiment consisted of IBA and NAA in different concentrations. The total of 800 pots were divided into 10 treatments and 4 replications. The results showed that application of IBA at concentrations of 5,000 ppm on cuttings showed highest plant parameters in terms of plant and root growth. On the other hand, rooting hanging shoots could be found at lower concentrations of IBA 300 ppm and NAA 400 ppm. It is concluded that IBA and NAA can be used in vegetative propagation to improve success rare and obtain better cutting growth.