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Alanine Conjugate of Indole-3-butyric Acid Improves Rooting of Highbush Blueberries

Mihaljević, Snježana; Salopek Sondi, Branka (2012) Alanine Conjugate of Indole-3-butyric Acid Improves Rooting of Highbush Blueberries. Plant, Soil and Environment, 58 (5). pp. 236-241. ISSN 1214-1178

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Auxins and their synthetic analogues are commonly used for rooting of cuttings, but their efficiency depends on experimental set-up and, even more importantly, on species or cultivar, and type of explants investigated. In attempt to improve rooting procedure for highbush blueberries (Vaccinium corymbosum L.), we investigated alanine conjugate of indole-3-butyric acid (IBA-Ala) as potential root-promoting compounds and compared with commonly used auxins indole-3-butyric acid (IBA) and indole-3-acetic acid (IAA). The effect of different concentrations of auxins on the rooting of highbush blueberry stem cuttings (var. Bluecrop, Bluetta, Burlington and Jersey) and in-vitro-derived microcuttings (var. Jersey) was investigated. Auxin treatments significantly promoted rooting of all four varieties in comparison to control. The most efficient rooting promoter in all varieties appeared IBA-Ala (provided up to 83%, and 93% of the rooted cuttings and microcuttings, respectively). Furthermore, IBA-Ala caused a vigorous, well-branched root system that resulted in better acclimatization and survival of plants. Results suggest the application of IBA-Ala may be beneficial for rooting of difficult-to-root varieties of blueberry and related species and their practical application in the nursery industry.

Item Type: Article
Uncontrolled Keywords: adventitious root; auxin; microcutting; stem cutting; Vaccinium corymbosum L.
NATURAL SCIENCES > Biology > Botany
Divisions: Division of Molecular Biology
Project titleProject leaderProject codeProject type
Molekularna regulacija biljnog razvitka[200002] Branka Salopek-Sondi098-0982913-2829MZOS
Depositing User: Branka Salopek Sondi
Date Deposited: 12 Oct 2015 15:50

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