The Effect of IBA (Indol-3-Butyric Acid) Dose Applications on Rooting of Hardwood and Softwood Top Cuttings of White Mulberry (Morus alba L.) and Black Mulberry (Morus nigra L.)

This study was conducted at glasshouse of Citrus and Tropical Research Department in Tartus governorate, and Olive Nursery in Latakia governorate, during 2015 to determine the influence of Indol-3-Butyric Acid (IBA) doses on hardwood and softwood top cuttings of three types of M. alba L. (B-1, B-5, KH-8) and three types of M. nigra L. (M-4, KH-9, KH-1) and one fruitless type (B-3), which spreads in different locations in Tartus, Syria. Hardwood cuttings were prepared during February from one-year-old shoots, and the softwood top cuttings were prepared during August in 2015. The cuttings were treated with different doses of IBA (1000, 2000 and 4000 ppm) in addition to the control application 0 ppm. The cuttings were planted in the glasshouses in order to root.