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ISHS Acta Horticulturae 140: Fruit Breeding, XXI IHC

NEED OF COLD TO APPLE SEED GERMINATION

Authors:   C. Thévenot, D. Côme
DOI:   10.17660/ActaHortic.1983.140.4
Abstract:
Apple embryos as those of many Rosaceae are often dormant at the time of harvest. Several weeks treatment at low temperatures (0–4°C) is necessary to give them the capability of germination. Even after a cold treatment non-dormant embryos germinate better at cool temperatures (15–20°C) than at 25 or 30°C. Furthermore a coat inhibition was demonstrated in apple seed germination. Because of such inhibition seed germination needs cool temperatures. This need of cold to breaking of embryo dormancy, germination of non-dormant embryo and seed germination shows that temperature plays an important role in apple seed germination.

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