Olive Cuttings as Affected by Different Concentrations of Indole Butyric Acid.

To study the effect of different concentrations of indole butyric acid (IBA) on olive cuttings, a greenhouse study was conducted, at Agricultural Research Institute, Tarnab during the growing season 2016. Completely randomized design (CRD) was used with four treatments that were replicated three times. The IBA concentrations used were (T1: control, T2: 1000 mgL^-1, T3: 2000 mgL^-1, T4: 3000 mgL^-1). Data were recorded on days to 50% sprouting, number of sprouts cutting^-1, sprouts length cutting^-1, number of leaves cutting^-1, days to rooting, and survival percentage. Significant differences (P=0.01) were observed among olive cultivar treated with different IBA concentrations for days to 50% sprouting, days to rooting, and survival percentage, while non-significant differences were observed for the number of leaves cutting^-1, number of sprouts cutting^-1 and sprouts length cutting^-1. The cuttings treated with IBA @ 3000 mgL^-1 took fewer days to sprout (25.00), and rooting (46.66), showed high value for the number of sprouts cutting^-1 (3.33), and survival percentage (39.67), while the maximum number of leaves cutting^-1 (7.33), and maximum sprout length cutting^-1 (5.00) was recorded with IBA @1000 mgL^-1 and 2000 mgL^-1 respectively. As most of the studied parameters had improved by IBA @ 3000 mgL^-1, therefore it can be used effectively as propagating material for olive cuttings. [ABSTRACT FROM AUTHOR]