ISHS Acta Horticulturae 707: VII International Symposium on Modelling in Fruit Research and Orchard Management
PHENOLOGICAL AND CLIMATIC SIMULATION OF THE LATE FROST DAMAGE IN CHERRY AND SOUR CHERRY IN ROMANIA |
| Authors: | E. Chitu, C. Paltineanu |
| Keywords: | climatic accidents, ‘Germersdorf’ cultivar, ‘Crisana’ cultivar, bud burst, green tip, blossom |
| DOI: | 10.17660/ActaHortic.2006.707.13 |
| Abstract:
The probability of late frost damage is estimated for sweet and sour cherry orchards. The probability of damage was calculated as the simultaneous occurrence of a susceptible phenophase and the critical temperature. A database of phenological observations was used for bud burst, green tip, early blossom and petal fall in sweet cherry (‘Germersdorf’ cultivar) and sour cherry (‘Crisana’ cultivar) orchards for a 29 year period (1970-1976, 1982-2003) together with weather data taken from a longer period. The probability of damage exceeded 3% in sweet cherry and 4% in sour cherry for five day periods between March 11 and April 25 in the Pitesti – Maracineni area. To extend the applicability of these studies to areas with no phenological observations, a package of multiple regression equations was developed which could simulate the phenological dynamics until the end of bloom. | |
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