Abstract
Climate change, with elevated temperatures throughout the year, affects many stages of the reproductive growth and development of olives as well as oil quality at harvest. Although olive (Olea europaea L.) is well adapted to the environmental conditions of the Mediterranean Basin, agricultural techniques and breeding through selection programs will have to adapt to these climate change, threatening to worsen in the near future. Defining the pathways controlling high fruit productivity and oil quantity and quality, despite elevated temperatures and sub-optimal growing conditions, is important for coping with current and predicted climate changes. As breeding programs aiming to address these crucial changes may take several decades, an urgent need to designate specific olive cultivars that are more resistant to high temperatures emerges.
Highlights
The picture emerging from a review of recent studies may be seen as foretelling agricultural techniques and future breeding and selection programs, designating specific olive cultivars that are more resistant to high temperatures
Climate change occurring in the last decade and threatening to worsen in the future, with elevated temperatures throughout the year, affect many stages of the reproductive growth and development of olives as well as oil quality at harvest [1]
We found that fruit development is affected by elevated temperature regardless of the time of occurrence during this process, while oil accumulation and quality are most affect when the high-temperature events occur after pit hardening
Summary
The picture emerging from a review of recent studies may be seen as foretelling agricultural techniques and future breeding and selection programs, designating specific olive cultivars that are more resistant to high temperatures. Climate change occurring in the last decade and threatening to worsen in the future, with elevated temperatures throughout the year, affect many stages of the reproductive growth and development of olives as well as oil quality at harvest [1]. Defining the pathways controlling high fruit productivity and oil quantity and quality, despite elevated temperatures and sub-optimal growing conditions, is important for coping with current and predicted climate change. The effect of high temperature environments on olive oil yield and quality is of increasing concern. As global changes increase in intensity, studying these effects and processes in depth, defining sustainable varieties and finding. Agronomy 2021, 11, 1492 studying these effects and processes in depth, defining sustainable varieties and finding ways to to overcome overcometemperature temperatureelevation elevationbecomes becomesa aworldwide worldwideconcern. Flowering, fruit development, oil accumulation, and oil quality
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