Effects of different indole-3-butyric acid (Iba) concentrations and rooting media on rooting response of orthosiphon aristatus stem cuttings

Arbai, Aminah (2008) Effects of different indole-3-butyric acid (Iba) concentrations and rooting media on rooting response of orthosiphon aristatus stem cuttings. [Project Paper] (Submitted)

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Abstract

This study was undertaken to evaluate the effects of indole-3-butyric acid (IBA) on induction of root from two-node stem cuttings of Orthosiphon aristatus. The study was conducted at the Horticultural Unit, Universiti Putra Malaysia Bintulu Campus using two rooting media, sand medium and water medium. Five different treatments made up of five different levels of IBA at 0, 500, 1000, 1500, and 2000 ppm were investigated in this study in three replications for each of the rooting medium. The treatments were administered by immersing the basal end of the stem cuttings into the IBA solution for 15 minutes prior to rooting. A total of 20 cuttings were administered for every treatment per replication. Root production was evaluated based on the number of root and length of the longest root for each cutting. Evaluation of rooting was done at 7 days after treatment for the water medium and 10 days for the sand medium followed by three evaluations at every five days intervals respectively. It was found that cuttings planted on sand medium and treated with 500 ppm IBA on average had the longest root but cuttings with treatments of higher IBA concentrations tended to produce more roots. Cuttings rooted in water medium with no IBA application produced the longest root while cuttings treated with higher IBA concentration produced the most roots. The overall results indicated the water medium appeared to be more conducive for rooting of 0. aristatus stem cuttings in term of root length but in term of inducing more roots IBA treatments were very effective especially at the 1500 ppm and 2000 ppm levels in either rooting medium.

Item Type:	Project Paper
Faculty:	Faculty of Agriculture and Food Sciences
Depositing User:	Mr. Azman Mohamad
Date Deposited:	17 Dec 2024 07:27
Last Modified:	17 Dec 2024 07:27
URI:	http://psaspb.upm.edu.my/id/eprint/2316

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