Involvement of the auxin-cytokinin homeostasis in adventitious root formation of rose cuttings as affected by their nodal position in the stock plant.

ABSTRACT:

Main conclusion

Enhanced levels of indole-3-acetic and raised auxin to cytokinin ratios in the stem base contribute to the positive acropetal gradient in rooting capacity of leafy single-node stem cuttings of rose. Cuttings excised from different nodal positions in stock plants can differ in subsequent adventitious root formation. We investigated the involvement of the auxin-cytokinin balance in position-affected rooting of Rosa hybrida. Leafy single-node stem cuttings of two rose cultivars were excised from top versus bottom positions. Concentrations of IAA and cytokinins were monitored in the bud region and the stem base during 8 days after planting using chromatography-MS/MS technology. The effects of nodal position and external supply of indole-butyric acid on rooting were anal

SUBMITTER: Otiende MA 

PROVIDER: S-EPMC8421306 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature