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Paper Information

Journal:   IRANIAN JOURNAL OF MEDICINAL AND AROMATIC PLANTS   July-August 2016 , Volume 32 , Number 3 (77) #M00571; Page(s) 417 To 427.

A study on propagation methods of Lavandula stricta Del.

* Horticultural Sciences Department, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
Lavandula stricta Del. is a native aromatic plant in Iran from Lamiaceae family, traditionally used in the treatment of rheumatic pain, nausea, and flu. In order to investigate the common propagation methods in this plant, two experiments were designed to evaluate the effect of different treatments on seed germination and rooting of cuttings at the Gorgan University of Agricultural Sciences and Natural Resources. The first experiment was carried out in a factorial experiment based on a completely randomized design (CRD) with three replications, and two factors were included as follows: Gibberlic acid (0, 250, 500 and 750 ppm) and chilling (chilling at 4 ° C for 24 and 48 hours and chilling at-18 ° C for 24 and 48 hours). The second experiment was carried out in a factorial experiment based on a complete randomized blocks design with three replications and three factors including indole butyric acid (0 and 250ppm), two types of cutting and three types of medium (cocopeat + perlite, perlite+sand and cocopeat+sand). Then, rooting percentage, root length and root number were measured. According to the results of the first experiment, chilling treatments caused to the reduced germination percentage, seed vigor, plumule and radicle length. In addition, gibberellic acid reduced all seed growth properties but increased the root length. In the second experiment, results showed that the highest rooting (60%) was obtained in the medium containing perlite+sand and 250 ppm ABA.
Keyword(s): Lavandula stricta Del.,gibberlic acid,chilling,rooting,auxine,medium
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