Biochemical aspects of almond microcuttings related to in vitro rooting ability
1997
Caboni, E. | Tonelli, M.G. | Lauri, P. | Iacovacci, P. | Damiano, C. (Ministero delle Risorse Agricole Alimentari e Forestali, Roma (Italy). Inst. de Botanique) | Kevers, C. | Gaspar, T.
Microcuttings of seven genotypes of almond (Prunus dulcis) used as peach rootstocks, showed different rooting ability in vitro. No direct relationship was found between peroxidase activity and total phenol content determined in the whole microcuttings prior to the root inducing treatment, and the rooting ability of these genotypes. However, a positive relationship was found between free indole-3-acetic acid (IAA) level and IAA-aspartate and the rooting response. After transferring into the rooting medium, peroxidase activity of the easiest-to-root genotype increase up to a peak and then declined and the total phenol content showed an opposite trend. These variations did not occur in the most difficult-to-root genotype.
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