Abstract—In this research the effect of different concentrations of Indolebutyric Acid, Naphthalene Acetic Acid and the combination of these two regulators on rooting and root growth factors of root and branch grafts of Cordyline terminalis were considered. The graft instances were produces from the mother branches which were planted in greenhouse. This experiments in completely random model framework and with 4 replications and 16 treatments was performed. IBA and NAA regulator in 4 levels include 0, 1000, 2000 and 3000 mg/L and IBA + NAA combination consist of 1000 +1000، 2000+1000، 3000 + 1000، 1000+ 2000، 2000+2000، 3000+2000 ، 1000 + 3000 ، 2000 + 3000 ، 3000+ 3000 mg/L was imposed the end of grafts were put in above solution around 5 seconds and  the factors such as callus percent, the percent of the grafts that have root, moisture weight, dry weight, number and Length of root and number of branch were studied. The results was showed that highest of root fresh weight, root  dry weight, root length and number of branches is regard to the treatment of combined density NAA (2000) + IBA  1000 mg/L that had the meaningful difference in statistical level of 5%. Meanwhile, this treatment was not meaningful on callus percent, percent rooting root number in statistical level of 5%. 
 
Index Terms—Indolebutyric Acid (IBA), Naphthalene Acetic Acid (NAA), Cordyline terminalis

Cite: Parvaneh Rahdari, Mojgan Khosroabadi, Katayun Delfani, and Seyed Meysam Hoseini, "Effect of Different Concentration of Plant Hormones (IBA and NAA) on Rooting and Growth Factors in Root and Stem Cuttings of Cordyline Terminalis," Journal of Medical and Bioengineering, Vol. 3, No. 3, pp. 190-194, September 2014. Doi: 10.12720/jomb.3.3.190-194