Synergistic effect of benzolinone with IBA and fungicides on the vegetative propagation of ornamental plants, park, and fruit woody species

M. Henselová
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M. Henselová: Comenius University, Faculty of Natural Sciences, Department of Plant Physiology, Bratislava, Slovak Republic

Horticultural Science, 2002, vol. 29, issue 2, 41-50

Abstract: A study was made of the stimulating effect of benzolinone (3-benzyloxycarbonyl-methyl)-2-benzothiazolinone in powder form (P) and its mixture with indole butyric acid (IBA), the biofungicide Supresivit and fungicide Captan 50 WP on the root formation of 17 species of ornamental plants, park and fruit woody species. Under the action of benzolinone, the yield of rooted cuttings in the category of ornamental plants amounted to 44.5% (in the Dianthus sp.) up to 83.7% (in Rosa canina), in the category of park woody species it was from l6.7 (in Magnolia stellata) to 100% (in Forsythia intermedia). In fruit trees represented by two species, viz. Actinidia arguta and cherry rootstocks, the yield was between 20 and 86.7%, and in two allochthonous species Cotoneaster horizontalis and Philadelphus coronarius it was from 96.7 to 100% in rooted cuttings. In the case of herbaceous and semi-lignified cuttings, lower concentrations of benzolinone below 0.1% were more effective, while on the contrary, higher concentrations of 0.1-0.2% proved more effective with lignified cuttings. In the species with difficult root formation, such as Magnolia stellata, Viburnum farreri and Actinidia arguta, benzolinone demonstrably stimulated both the rhizogenesis, and thereby the overall yield of rooted cuttings, and the quality of the root system. In the case of the species with naturally high rooting ability, the positive effect of benzolinone was manifest mainly in the quality of the root system. The synergistic action of the above stimulants on root formation was achieved in two and three-component benzolinone mixtures with IBA and fungicides on the basis of the active ingredients captan and Trichoderma harzianum. The most evident stimulating effects on the rooting of cuttings in Dianthus sp., Ficus schlechteri and the deciduous species Acer saccharinum Pyramidale, Prunus padus Colorata and Prunus kurilensis Brilliant was obtained in three-component mixtures.

Keywords: benzolinone; indole-3-butyric acid (IBA); captan; Trichoderma harzianum; vegetative propagation; ornamental plants; park and fruit woody species (search for similar items in EconPapers)
Date: 2002
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlhor:v:29:y:2002:i:2:id:4459-hortsci

DOI: 10.17221/4459-HORTSCI

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