El-Torky,, M., Shahein, A., EI-shennawy, O., EI-Fadly, E. (2004). STUDIES ON JOJOBA [Simmondsia chinensis (LINK) SCHNEIDER] 1- IBA-INDUCED ROOTING POTENTIALS.. Journal of Plant Production, 29(12), 7191-7199. doi: 10.21608/jpp.2004.238954
M. G. El-Torky,; A. H. Shahein; Ola A. EI-shennawy; Eman M. EI-Fadly. "STUDIES ON JOJOBA [Simmondsia chinensis (LINK) SCHNEIDER] 1- IBA-INDUCED ROOTING POTENTIALS.". Journal of Plant Production, 29, 12, 2004, 7191-7199. doi: 10.21608/jpp.2004.238954
El-Torky,, M., Shahein, A., EI-shennawy, O., EI-Fadly, E. (2004). 'STUDIES ON JOJOBA [Simmondsia chinensis (LINK) SCHNEIDER] 1- IBA-INDUCED ROOTING POTENTIALS.', Journal of Plant Production, 29(12), pp. 7191-7199. doi: 10.21608/jpp.2004.238954
El-Torky,, M., Shahein, A., EI-shennawy, O., EI-Fadly, E. STUDIES ON JOJOBA [Simmondsia chinensis (LINK) SCHNEIDER] 1- IBA-INDUCED ROOTING POTENTIALS.. Journal of Plant Production, 2004; 29(12): 7191-7199. doi: 10.21608/jpp.2004.238954
1Department of Floriculture, Ornamental Horticulture and Garden Design, Faculty of Agriculture, Alexandria University, Egypt.
2Department of Pomology, Faculty of Agriculture, Alexandria University, Egypt.
Abstract
Two types of cuttings were prepared from the current year's growth of jojoba plants; terminal and sub-terminal. Bases of the cuttings were quickly dipped for 15 seconds in different IBA (indol-3-butyric acid) solutions; zero, 2000, 4000, 6000, 8000 and 10000 ppm. Data showed that all IBA concentrations increased the rooting percentage of the treated jojoba cuttings except the 2000 ppm. The highest values of rooting percentage were obtained when cuttings were treated with 8000 ppm. Rooting percentage was found to increase steadily as IBA concentrations increased from zero to 8000 ppm. Rooting percentage of the terminal cuttings of jojoba were significantly higher than that of sub-terminal cuttings.
All IBA concentrations increased the average root length except the 2000 ppm. The maximum root lengths were obtained at 6000 ppm. in both seasons. Sub- terminal cuttings were found superior to terminal ones although they were not statistically different..
All ISA treatments increased the number of roots of the treated jojoba cuttings. The number of roots per cutting increased steadily as ISA concentrations increased from 4000 to 10000 ppm. The type of cutting have had no remarkable effect on the number of roots produced.
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