Soyez le premier à aimer ceci
Abstract: A study on peach was carried out in order to evaluate the impact of higher temperatures during the early development of the fruit until its maturity. The analysis was done on the vegetative growth, tree production and fruit quality. 35 trees were placed in 3 compartments of greenhouse and 5 others remained outside. We compared 3 levels of temperature +0°C, +2°C and +5°C. The trees were distributed on 8 treatments (Orchard, +0°C/+0°C, +0°C/+2°C, +2°C/+0°C, +0°C/+5°C, +5°C/+0°C, +2°C/+2°C, +5°C/+5°C). The study has shown that temperature lead to a decrease of fruit set and wide variations of water potential. The higher temperature leads to an acceleration of the vegetative cycle which consists on earlier budbreak and an higher growth rate. The increase of temperature has also lead to a large advance in the harvest date. However, no significant effect was observed on the final vegetative growth, on the fruit size at harvest and on brix level.