Adventitious root formation in Grevillea (Proteaceae), an Australian native species |
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| Authors: | Santi Krisantini Margaret Johnston Richard R Williams Christine Beveridge |
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| Institution: | 1. School of Agronomy and Horticulture and Centre for Native Floriculture, School of Life Sciences, The University of Queensland, Gatton Campus, Qld 4071, Australia;2. School of Integrated Biology and ARC Centre of Excellence for Integrative Legume Research, The University of Queensland, John Hines Building, St Lucia, Brisbane, Qld 4343, Australia |
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| Abstract: | Grevillea (Proteaceae) is a native Australian plant genus with high commercial value as landscape ornamentals. There has been limited research on the culture and propagation of Australian native species. The effect of indole-3-butyric acid (IBA) on the rooting of G.‘Royal Mantle’ and G.‘Coastal Dawn’ in winter, spring and summer was evaluated at University of Queensland Gatton, Southern Queensland in order to determine the rooting ability of this species in different seasons. Both Grevillea cultivars showed seasonal rooting. The more difficult-to-root G.‘Coastal Dawn’ had a reduced response to IBA application than G. ‘Royal Mantle’. Stem and leaf indole-3-acetic acid (IAA) levels were not different between cultivars, therefore rooting ability between the two cultivars does not appear to be due to the differences in endogenous IAA levels. |
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| Keywords: | Auxin Cutting propagation |
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