Effects of Indole-3-Butyric Acid (IBA) and rooting media on rooting and survival of air layered wax apple (Syzygium samarangense) CV Jambu Madu

Abstract

The wax apple or jambu madu, is a non-climacteric tropical fruit from Myrtaceae family and widely cultivated in South East Asia. The limited availability of good quality seedlings of wax apple is the main problem to development of flourish it’s market share in the current fruit industry. Therefore, in order to produce good quality planting materials, a study aimed at optimizing propagation and adventitious rooting technique and survivability of wax apple air layer was conducted. In this study, four different levels of Indole-3-Butyric Acid (IBA) concentration (0, 1000, 1500 and 2000 mg L-1) and three rooting media (sphagnum moss, vermicompost and garden soil) were applied after removal of bark (phloem) on the shoot to determine the effect on rooting and survivability of the wax apple air layer under field conditions. The results showed that the wax apple shoots treated with 2000 mg L-1 IBA produced the significantly higher number of roots, increased length of root, diameter of branch, length of branch, number of leaf and leaf area of air layers. In addition, the highest chlorophyll content and stomatal aperture were recorded in 2000 mg L-1 IBA treatment compared to other treatments including control. Vermicompost medium was better than garden soil and sphagnum moss in respect of rooting and survivability of air layers. The results showed that the combination of 2000 mg L-1 IBA and vermicompost as rooting media give the best combination to root initiation, root number, root length and survival rate (100%) of wax apple air layers. From this study, it can be concluded that 2000 mg L-1 IBA and vermicompost treatment enhance the root initiation, early establishment and survivability of wax apple air layered under field conditions.

The impact of auxin on the vegetative and reproductive growth of carrot (Dacus carota L.)

“…Stimulation of cell division and cell elongation at shoot apex together with an improvement in photosynthetic efficiency is due to the increase activity of exogenously treatment with IBA which finally resulted increased in plant height, leaves length and number of leaves reported in carrot . Increased in number of leaves, leaves length and plant height due to IBA was also observed in apple (Malus pumila) cuttings (Khandaker et al, 2022). Increased in number of leaves, leaves length and plant height due to IBA was also observed in apple (Malus pumila) cuttings (Khandaker et al, 2022).…”

“…Increased in number of leaves, leaves length and plant height due to IBA was also observed in apple (Malus pumila) cuttings (Khandaker et al, 2022). Increased in number of leaves, leaves length and plant height due to IBA was also observed in apple (Malus pumila) cuttings (Khandaker et al, 2022). Floral traits were also positively affected by IBA concentration.…”

Dicationic Ionic Liquids with an Indole-3-butyrate Anion – Plant Growth Stimulation and Ecotoxicological Evaluations

“…A perfect example is the IBA discussed in this study. As a slightly water-soluble substance (200 mg L –1 ), IBA cannot be used at higher concentrations without adding a co-solvent to enhance solubility. − However, to avoid the addition of alcohol or other adjuvants, it was shown in earlier studies that transforming IBA into ammonium salts or binary mixtures contributed to the improvement of this parameter. , For the DILs 1–3 obtained as well, the improvement in solubility of IBA in ionic form was noticed. From the solubility analysis, one can be observed that DILs 1–3 were dissolved at 22, 25, and 20 g L –1 , respectively.…”

Propagation of Cunila galioides Benth.: a Medicinal and Aromatic Species Native to South Brazil

“…According to Fachinello and coauthors [19], it is necessary to carry out tests with each plant species to verify the need to use plant growth regulators to induce rooting and, if necessary, the most suitable concentrations. The group of synthetic plant growth regulators most used to induce rooting is auxins, mainly indole-3-butyric acid (IBA) [20].…”