Evaluation of Propagation of Chinese Hibiscus (<i>Hibiscus rosa-sinensis</i>) through Stenting Method in Response to Different IBA Concentrations and Rootstocks

Abstract

Stenting is a vegetative propagation method, based on cutting and grafting in one action. The question addressed in this study is whether indole-3-butyric acid (IBA) concentration is able to impress success of Chinese hibiscus propagation when grafted onto two kinds of rootstocks. The used IBA concentrations include: 0, 1000, 3000 and 5000 ppm and two cultivars of Hibiscus syriacus ("Blue Stain" and "Jeanne d'Arc"), which have been used as rootstock. Results indicated that, all the cultivars were superior for most of the measured parameters when IBA treatments were used compared to control plants except for average of the longest root size. The highest healing percentage resulted in stentlings (plant which has been propagated by stenting method) with 5000 ppm of IBA treatment. All IBA treatments significantly increased rooting percentage compared with the control plants. Stentlings that were treated with 3000 and 5000 ppm of IBA, produced the greatest leave number. In Chinese hibiscus/"Jeanne d'Arc" combination, higher root number and dry weight of roots were observed. Interactions of kinds of rootstock and IBA concentration showed that the highest healing percentage was obtained in "Blue Stain" in concentration of 5000 ppm and the highest root number were seen in stentlings with "Jeanne d'Arc" in 3000 ppm and "Jeanne d'Arc" in 5000 ppm.

Iron Chelate Improves Rooting in Indole-3-Butyric Acid-Treated Rosemary (Rosmarinus officinalis) Stem Cuttings

“…Results confirm that the application of IBA improves rooting in R. officinalis cuttings, in line with previous results obtained in this plant species [30][31][32][33], as well as in many other woody plants [7][8][9][10][11][12][13][14][15][16][17][18]. Data shown here indicate that when Fe supplementation is not used, an IBA concentration of 1000 mg L −1 appears to be adequate for R. officinalis, since higher IBA concentrations (2000-3000 mg L −1 ) do not provide any supplementary advantage.…”

“…Endogenous IAA can be readily oxidized in plants by peroxidase, but IBA is quite stable and is only slowly transported from the site of application at the base of the cuttings, resulting in a localized IAA production [6]. Exogenous IBA application has been shown to have positive rooting effects in many woody plant species, including Citrus medica [7], R. damascena [8], Hibiscus rosa-sinensis [9], Olea europaea [10,11], Zizyphus jujuba [12], Tilia rubra [13], Eucaliptus spp. [14,15], Sterculia foetida [16], Castanea spp.…”

Study of indole butyric acid (IBA) effects on cutting rooting improving some of wild genotypes of damask roses (Rosa damascena Mill.)

“…Control cuttings were dipped in 1.5 % (V/V) aqueous ethanol for the same time. The cuttings were planted at depth of 3 cm on planting medium in the greenhouse equipped with an intermittent mist system (scheduled for two-minute spray every 45 minutes from 7:00 A.M. to 8:00 P.M. daily and twice operation around midnight to maintain (Izadi and Zarei, 2014) an average relative humidity of the greenhouse in 70% ± 5%) (Izadi and Zarei, 2014). The environment temperature of cuttings was 22−24 °C and the bed temperature was 24−27 °C.…”

Response of black mulberry onto white mulberry rootstock to stenting (cutting-grafting) techniques and IBA concentrations

“…Cutting and grafting is accomplished simultaneously in this technique (Karimi, 2011;Babaie et al, 2014;Pourghorban et al, 2019). It is a valuable technique in propagating of many plant species such as conifers, apple, plum, pear (Hartman et al, 2002), pomegranate (Karimi, 2011), roses (Park and Jeong, 2012;Izadi et al, 2013;Pourghorban et al, 2019), Chinese hibiscus (Izadi and Zarei, 2014), weeping fig (Babaie et al, 2014). However, it is not known about mulberry plants response to different stenting methods.…”

“…On the other hand, adventitious root initiation and formation through stenting method depends of several factors, including environmental conditions and the physiological condition of rootstocks (Park and Jeong, 2012;Izadi and Zarei, 2014;Karimi and Nowrozy, 2017). The effect of exogenous auxins (particularly IBA) has been proven for root induction and root formation in many cutting of plants (Hartman et al, 2002;Babaie et al, 2014;Chater et al, 2017).…”