International Journal of Horticulture and Floriculture ISSN 2167-0455 Vol. 3 (2), pp. 161-167, September, 2015. © International Scholars Journals
Full Length Research Paper
A study of vegetative propagation by mini-cuttings and their rooting potential of canjerana with different concentrations of IBA
Rousseff Cláudio1, Alencar Eduardo2 and Cláudia Teixeira2
1Department of Crop Science, Faculty of Agriculture, Candido Mendes University, Rio de Janeiro, Brazil.
2Department of Plant Science, Faculty of Agricultural Sciences, Rio de Janeiro, Brazil, Rio de Janeiro, RJ, Brazil.
Corresponding authr. E-mail: rousseff.cláudio@gmail.com
Accepted 22 May, 2015
Canjerana (Cabralea canjerana (Vell.) Martius) is a tree species indigenous to Brazil that when grown and managed in plantation systems are of great ecological and economic importance. Due to the difficulty of producing seminal seedlings, we examine the possibility of vegetative propagation by evaluating the rooting potential of canjerana mini-cuttings with different concentrations of indolbutyric acid (IBA) and substrate combinations. Mini-cuttings were treated with 2000 mg/L of IBA and planted in commercial substrate; coarse sand; carbonized rice husks; and a combination of the two. Apical and nodal mini-cuttings were treated with 0, 1000, 2000 and 3000 mg/L of IBA and planted in a combination of commercial substrate, coarse sand and carbonized rice husks. A mini-clonal hedge was formed with three clones of canjerana to evaluate mini-stump productivity and mini-cutting rooting. The combination of commercial substrate, coarse sand and carbonized rice husks maximized mini-cuttings rooting. Nodal mini-cuttings had higher rooting capability than apical ones. The application of 3000 mg/L of IBA improved rooting differentiation and growth of canjerana mini-cuttings. Canjerana clones differ in rooting capability and survival rates in vegetative propagation systems, but the use of a mini-cutting propagation system is a feasible production technique for this important species.
Key words: Vegetative propagation, miniclonal hedge, mini-cutting rooting, indolbutyric acid.