Section 6
Chapter 5,242

Effect of girdling on flowering and on levels of endogenous growth regulators in embryonic shoots of scotch pine grafts pinus sylvestris

Wesoly, W.

Acta Physiologiae Plantarum 7(4): 171-180


ISSN/ISBN: 0137-5881
Accession: 005241424

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Branches of 15-year-old grafts representing three clones underwent girdling. A varying influence of girdling on fructification was observed. Increase in endogenous gibberellin content in embryonic shoots 48 hours after treatment was most distinct in the less polar gibberellins at levels Rf 0.4-0.6 and 0.8-1.0. Clones were found to exert a stronger influence on endogenous auxins content than girdling.

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