Effects of substrate, phenological cutting stage, and auxin concentration on rooting of Cotinus obovatus Raf.
MetadataShow full item record
A study was conducted to determine the effects of substrate, phenological stage of cuttings and auxin concentrations on the rooting of Texas smoke tree (Cotinus obovatus Raf). Softwood, semi-hardwood and hardwood cuttings were treated with either a 0 mg/L (ppm) 5000 mg/L (ppm), 10000 mg/L (ppm), or 15000 mg/L (ppm) potassium salts of indolebutyric acid (K-IBA) and placed in either 50% peat: 50% perlite or 100% perlite rooting substrates. Cuttings were placed under an intermittent mist system in a greenhouse for 8 weeks. Softwood cuttings rooted in both substrates but the 50% peat : 50% perlite substrate produced better quality-rooted cuttings. Softwood cuttings peaked at 8,000 to 10,000 mg/L (ppm) K-IBA. Semi-hardwood and hardwood cuttings rooted only in the 100% perlite substrate. In 100% perlite substrate the optimal concentration for semi-hardwood cuttings was approximately 12000 mg/L (ppm) K-IBA. while hardwood rooting was maximized at 15000 mg/L (ppm) K-IBA or more.
DescriptionDue to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to email@example.com, referencing the URI of the item.
Includes bibliographical references (leaves 17-18).
Denny, Geoffrey Carlile (2000). Effects of substrate, phenological cutting stage, and auxin concentration on rooting of Cotinus obovatus Raf.. Texas A&M University. Available electronically from