A stock plant etiolation treatment was tested to improve rooting of the important cherry rootstock Gisela-5. To create the etiolation effect, at the beginning of the growing season, banding (blanching) was initiated on stock plants by placing black plastic tape at the base of new shoots for 6 or 10 weeks. Cuttings were excised so that the banded area was at the cutting base. IBA was applied at two concentrations (5 and 10 mm) to the cutting base following wounding and cuttings were placed in perlite (100%) rooting medium under mist. The rooting percentage, number of roots per cutting and root length were measured 4 weeks after planting. Banding and duration significantly stimulated rooting of leafy softwood cuttings. The highest rooting percentage (80.0%) was obtained on cuttings banded for 6 weeks and treated with 5 mm IBA.
determine the cutting type by testing the effects of gradient concentrations of indole-3-butyric acid (IBA) and cutting positions on rooting performance and, second, to investigate the effects of the collection times of cuttings on rooting performance and to
roots at the points of soil contact with the stems ( Marler and Cruz, 2017b ). The synthetic auxin IBA was among the first plant hormones used for enhancing root formation on plant stems ( Cooper, 1935 ). Since the introduction of IBA more than 70 years
Abstract
The genus Quercus comprises a major group of woody landscape plants that differ widely in root system morphology and recovery from transplanting (2, 6). Quercus alba has a coarse root system and is more difficult to transplant than the more fibrous-rooted Quercus rubra (2).
cuttings were taken from branch tips of 25- to 50-year-old trees vs. 1-year-old trees. When the cuttings taken from the 1-year-old trees were treated with a 1000 mg·kg −1 powder form of indole-3-butyric acid (IBA) (ROOTONE®; Ferti-lome Co., Bonham, TX
stimulation of root development and increases uniformity of rooting. This in turn results in the propagating of new plants in a shorter period of time and low cost. IBA is one of the most effective and widely used auxins in vegetative propagation ( Blazich
intensity and subsequent 8-h dark condition in a growth chamber at 23 ± 1 °C. They were sub-cultured every 3 weeks. Table 1. Proliferation treatments containing different concentrations of benzyl amino purine (BAP) and indole butyric acid (IBA) for the HS314
., 1976 ). This is promising and suggests that auxin may also initiate callus and rooting in stem cuttings for R. columnifera . In a study of Grindelia , another member of the Asteraceae Bercht. & J. Presl family, cuttings were exposed to IBA in various
-butyric acid (IBA) is often used for rooting in commercial operations ( De Klerk et al., 1999 ) and is available in various formulations, concentrations, and application methods. IBA can be delivered to cuttings in talc or dissolved in alcohol to be used
Cathey, 2004 ). Wall germander can be propagated from cuttings without adding auxin, but rooting is more rapid and uniform with the application of 1000–3000 ppm IBA ( Dirr and Heuser, 2006 ). Auxins are a class of plant growth regulators that affect many