Avocado rooting promoter (ARP) detection in Laurus nobilis L. and Mangifera indica L. based on gas chromatography.
Becker D., Raviv M., Cossé A., Medina S., Reuveni O.
Author Affiliation: Department of Chemistry, Technion, IIT, Haifa 32000, Israel.
Scientia Horticulturae 48 : 323-328
Abstract : A qualitative analytical method for avocado rooting promoters (ARP) was developed based on gas chromatography (GC) of silylated samples. Leaves of easy- and difficult-to-root clones of L. nobilis and mango were extracted and analysed for ARP components and for ARP-like activity. ARP compounds 1I and/or 2I were detected in leaf extracts of both easy- and difficult-to-root L. nobilis clones. ARP-like activity was higher in the easy-to-root than in the difficult-to-root L. nobilis plants as manifested in the mung bean rooting bioassay. Compounds 1I and/or 2I were found in the easy-to-root mango clone but not in the difficult-to-root one. However, ARP-like activity was similar in the 2 extracts.