Effects of rooting media and indole-3-butyric acid (IBA) concentration on rooting and shoot development of Duranta erecta tip cuttings

Abstract

Duranta erecta is popularly grown as an ornamental plant in tropical and semi-tropical gardens. Current demands for the shrub have prompted the need for effective propagation methods. In this study, the influence of indole-3butyric acid (IBA) hormone concentration and media on rooting of D. erecta propagated from tip cuttings under greenhouse conditions were investigated. IBA hormone was used in three concentrations (2500, 5000, and 7500 ppm) and 0 ppm was the control. The study consisted of three media types (river sand, pine bark, a mixture of peat and perlite at a 1:1 ratio). The experiment was arranged in a 3×4 factorial layout in Randomized Complete Block Design replicated 3 times. Cutting survival, root length and number, shoot length and number were analysed. There was no interaction (P>0.001) between IBA concentration and media for all the measured parameters. The results showed that the optimum concentration of IBA is 5000 ppm, beyond which were inhibitory in all parameters except on root length. Type of media influenced survival and shoot number with pine bark giving the highest but did not affect root number, root length and shoot number.

The Impact of Dates and IBA Treatment on the Root Ability of Semi-Hard Wood Cuttings of Three Olive (Olea europaea L.) Cultivars

“…IBA has a significant influence on rooting capacity and is an important auxin for the regulation of adventitious root formation; furthermore, it is a stimulant hormone, as evidenced by the fact that IBA-treated cuttings have higher rooting percentages, more roots, and longer root lengths than untreated cuttings [14,16]. Consistent with other research [15,17], we found that pretreatment with IBA improved rooting in stem cuttings. This is due to the fact that the chemical accelerates rooting and stimulates adventitious root growth [18,20].…”

“…Auxins have the biggest impact on rooting [14]. The most common auxin used for rooting olive cuttings is indole butyric acid [15,16]. Using indole butyric acid (IBA), a growth regulator, as a pretreatment for plant cuttings to facilitate their propagation has been commonplace [12].…”

Shoot position, cutting types and auxin treatments influence rooting response on Tecoma stans

“…IBA at 4000 ppm induced maximum rooting and produce high quality planting stock in Swietenia macrophylla (Azad and Matin, 2015). While for Duranta erecta 5000 ppm was the best for rooting and furthers than that the inhibitory effects on the rooting was apparent (Shiri et al, 2019). IBA treated cuttings produced higher rooting percentage, number of roots and root length than untreated cuttings revealing a strong IBA influence on rooting ability of stem cuttings in Swietenia macrophylla (Azad and Matin, 2015).…”

Influence of indole butyric acid on root and shoot growth in dragon fruit (Hylocereus undatus) stem cuttings

“…IBA plays significant role in enhancing rooting process (root hair elongation, later root development and formation of adventitious roots) by involving in physiological process of cell division, cell enlargement and interaction with other hormones through different mechanisms (Zimmerman and Wilcoxon, 1935;Gehlot et al, 2014). Madhavan et al (2021), Sabatino et al (2014), Rahbin et al (2012) and Shiri et al (2019) reported enhancement of root length with the use of IBA in grapes, night jessamine (Cestrum nocturnum), silver germander (Teucrium fruticans) and Duranta errecta respectively. In Dragon fruit, Seran and Thiresh (2015) observed longest root length in cutting treated with 8000 ppm and 6000 ppm IBA.…”