A Study on the Effects of Hormone Application on Propagation with Hardwood Cuttings of the Black Mulberry
In this study, the effects of ındol-3-butyric acid (IBA) doses and 150 ppm NAA on rooting of black mulberry (Local Horum cultivar) hard wood cuttings were evaluated. Hard wood cutings of local cultivar Horum black mulberry (Morus nigra) were taken on March 15 2013 and treated with 0, 4000, 6000, and 8000 ppm IBA and 3000 ppm IBA + 150 ppm NAA solutions by quick dip method. These cutings were rooted in a rooting media for 8-10 weeks. At the end of incubation period, the cutting were evaluated. Based on the results of the study, the highest percentage of rooted cuting % 66.7, average number of root per cutting(3 root/cutting), and average root length 43,4 mm were observed in 8000 ppm IBA application. There was no rooting in untreated control. The results of present study showed that 8000 ppm ABI application could be the best growth hormone dose for rooting, number of root, root length and number of usable cuttings for production of Horum Black Mulberry plant. Further study should be done to determine the effects of the doses higher than 8000 ppm IBA on rooting of local Horum black mulberry hard wood cutting.
IBA, cutting, Black mulberry, NAA, hard wood