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Proceedings of the International Plant Propagator's Society

Vol. 38

Title:
THE USE OF GLYCOLS AS SOLVENTS FOR ROOTING HORMONES

Author:
Howard W. Barnes

pp: 517-520

Abstract:
Cuttings of Malus ‘Snowdrift’, Prunus subhirtella ‘Pendula Plena Rosea’, and P. serrulata ‘Kwanzan’ were subjected to various concentrations of indole-3-butyric acid (IBA) and 1-naphthleneacetic acid (NAA) dissolved in propylene and ethylene glycols; IBA/NAA combinations obtained from Woods Rooting Compound and from Chloromone (indole-naphthylacetamide). Cuttings were rooted in a mist supplied greenhouse with bottom heat during the summer of 1988. Rooting percentage and rooting time indicated no significant differences between glycol preparations and Wood's Rooting Compound. In all cases, auxin-glycol solutions and Wood's Rooting Compound proved to be superior to Chloromone. It is clear that auxin preparations using glycols as solvents are acceptable as liquid quick-dips.

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