Olive Cuttings as Affected by Different Concentrations of Indole Butyric Acid

Abstract

O live (Olea europea) in Pashto language called Zaitoon or Khuna, is the oldest plant cultivated by man in the world, belongs to the family Oleaceae, used for its fruits and oil production (Brito et al., 2019). Olive has been originated from North West Syria, Palestine, Lebanon and Cyprus (Murkovic et al., 2004). Olive is an evergreen tree with a medium to tall size that can gain up to 15 m. It is a vigorous tree having the ability to promptly regenerate if cut or injured above ground. The olives live for hundreds of years with good production. The trees have dark green, leathery, thick and oppositely arranged leaves (Munir, 2009). The oil of olive is known for its nutritive values and other benefits. It is used in cooking and other preparations such as in massaging creams, pharmaceuticals and cosmetics. Olive oil contains polyunsaturated fatty acids, it is an oil source that is free of cholesterol, and has several health benefits (Awan et al., 2012). In Pakistan olive has not been grown for oil production since the 1970s when its first grooves were established, therefore very negligible research studies have been carriedAbstract | 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.

Effect of Organic Manures and IBA on Shoot Growth and Survival Percentage of Dragon Fruit (Hylocereus polyrhizus) Cuttings

“…The highest Diameter of longest shoot (mm) (DAP) per cutting (14.73, 27.36 and 41.61 mm at 30, 60 and 90 days after planting) was noticed with T 6 (Soil + Sand + Vermicompost) + IBA (8500 ppm) and minimum Diameter of longest shoot (mm) (DAP) was recorded in T 0 control (9.33, 17.64 and 27.87 mm at 30, 60 and 90 DAP) treatment. Alam et al (2007) reported maximum shoot diameter with the treatment IBA 4000 ppm. Further, they stated that the increase in shoot diameter in kiwi fruit cuttings might be due to more number of leaves and vigorous root system as a consequence of better carbohydrate production and assimiliation.…”