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Cold and heat requirements of the apricot tree (Prunus armeniaca L.) |
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| Authors: | M V Andrés J M Durán |
| Institution: | 1. Departamento de Producció n Vegetal: Fitoté cnia, Escuela Té cnica Superior de Ingenieros Agró nomos, Universidad Polité cnica, 28040 – Madrid, Spainjmduran@pvf.etsia.upm.es;3. Departamento de Producció n Vegetal: Fitoté cnia, Escuela Té cnica Superior de Ingenieros Agró nomos, Universidad Polité cnica, 28040 – Madrid, Spain |
| Abstract: | SummaryThe cold units (CU) and heat units (HU) required for the flowering of 13 apricot cultivars (Prunus armeniaca L.) cultivated in AbaraÂn (Murcia) have been established. The end of the dormancy period was determined on the basis of the dry-weight increase of the flower buds. The tests in which the dry weight was measured after forcing the flower buds at 208C turned out to be more precise in detecting the beginning of the reactivation phase than those in which they were not forced. |
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