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ISHS Acta Horticulturae 34: Symposium on growth Regulators in Fruit Production

EFFECT OF SADH ON JUVENILITY OF APPLE SEEDLINGS

Author:   H. Jonkers
DOI:   10.17660/ActaHortic.1973.34.18
Abstract:
Seedlings of the apomictic tea crab apple, Malushupehensis Rehd., were sprayed annually for 6 years with the growth retardant SADH (succinic acid-2, 2-dimethylhydrazide) at 0, 500, 2500 and 5000 ppm. There was hardly any promotion of the onset of flowering, though the minimal plant height for flowering was reduced by as much as 50%. It is concluded that SADH, which can promote flower formation in many mature fruit trees, is ineffective as a flowering stimulus for seedlings.

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34_17     34     34_19

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