Influence of Mineral Nutrition on Stock Plant Yield and Subsequent Rooting of Stem Cuttings of Scaevola, New Guinea Impatiens, and Vegetative Strawflower

dc.contributor.advisorBrian E. Whipker, Committee Co-Chairen_US
dc.contributor.advisorPaul V. Nelson, Committee Co-Chairen_US
dc.contributor.advisorFrank A. Blazich, Committee Memberen_US
dc.contributor.advisorJudith F. Thomas, Committee Memberen_US
dc.contributor.authorGibson, James Lloyden_US
dc.date.accessioned2010-04-02T18:35:33Z
dc.date.available2010-04-02T18:35:33Z
dc.date.issued2003-08-14en_US
dc.degree.disciplineHorticultural Scienceen_US
dc.degree.leveldissertationen_US
dc.degree.namePhDen_US
dc.description.abstractCutting yield and rooting performance influenced by stock plant fertilization and how mineral nutrients play a role in the development of adventitious roots are new frontiers in floriculture research. Three experiments identified proper fertilization strategies for stock plants. In Expt. 1 stock plants of New Guinea impatiens and scaevola were fertigated with a factorial arrangement of N and K at concentrations of 100, 200, or 300 mg.L-1. Stock plants should be fertilized with N at 300 mg.L-1 because yield and rooting performance were maximized, while K at 100 mg.L-1 resulted in decreased leaching of K and improved rooting of stem cuttings of New Guinea impatiens. No improvement occurred in cutting production and rooting of scaevola at K concentrations over 100 mg.L-1. In Expt. 2 elemental deficiencies of N, P, K, Ca, Mg, S, Fe, Mn, Cu, Zn, or B were induced in stock plants of 'Florabella Pink' strawflower. Nutrients at an incipient or moderate stage of deficiency that affected rooting quality negatively were P, Ca, and Zn. Low K tissue levels near 1.5% affected rooting positively. In Expt. 3 yield and subsequent rooting of stem cuttings of stock plants of strawflower were recorded when fertilized with K at 0, 29, 59, 117, or 234 mg.L-1. While a threshold level of K at 32 mg.L-1 achieved the highest number of cuttings, rooting was not different with cuttings from stock plants fertilized with K at 59 to 234 mg.L-1. Stock plants of strawflower can be fertilized at 1N:1.1K (N at 217 mg.L-1 and K at 234 mg.L-1) or 2N:1K (N at 217 mg.L-1 and K at 117 mg.L-1) ratios because upper cutting foliage did not exhibit deficiency symptoms and optimal cutting yield and rooting occurred.en_US
dc.identifier.otheretd-08132003-113938en_US
dc.identifier.urihttp://www.lib.ncsu.edu/resolver/1840.16/3741
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectmineral nutritionen_US
dc.subjectfloricultureen_US
dc.subjectpropagationen_US
dc.subjectNew Guinea impatiensen_US
dc.subjectscaevolaen_US
dc.subjectstrawfloweren_US
dc.subjectstock plantsen_US
dc.subjectcuttingsen_US
dc.titleInfluence of Mineral Nutrition on Stock Plant Yield and Subsequent Rooting of Stem Cuttings of Scaevola, New Guinea Impatiens, and Vegetative Strawfloweren_US

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