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Studying Parameters Affecting Accumulation of Chilling Units Required for Olive Winter Flower Induction

With global warming, mean winter temperatures are predicted to increase. Therefore, understanding how warmer winters will affect the levels of olive flower induction is essential for predicting the future sustainability of olive oil production under different climactic scenarios. Here, we studied th...

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Autores principales: Engelen, Chaim, Wechsler, Tahel, Bakhshian, Ortal, Smoly, Ilan, Flaks, Idan, Friedlander, Tamar, Ben-Ari, Giora, Samach, Alon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10143890/
https://www.ncbi.nlm.nih.gov/pubmed/37111937
http://dx.doi.org/10.3390/plants12081714
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author Engelen, Chaim
Wechsler, Tahel
Bakhshian, Ortal
Smoly, Ilan
Flaks, Idan
Friedlander, Tamar
Ben-Ari, Giora
Samach, Alon
author_facet Engelen, Chaim
Wechsler, Tahel
Bakhshian, Ortal
Smoly, Ilan
Flaks, Idan
Friedlander, Tamar
Ben-Ari, Giora
Samach, Alon
author_sort Engelen, Chaim
collection PubMed
description With global warming, mean winter temperatures are predicted to increase. Therefore, understanding how warmer winters will affect the levels of olive flower induction is essential for predicting the future sustainability of olive oil production under different climactic scenarios. Here, we studied the effect of fruit load, forced drought in winter, and different winter temperature regimes on olive flower induction using several cultivars. We show the necessity of studying trees with no previous fruit load as well as provide evidence that soil water content during winter does not significantly affect the expression of an FT-encoding gene in leaves and the subsequent rate of flower induction. We collected yearly flowering data for 5 cultivars for 9 to 11 winters, altogether 48 data sets. Analyzing hourly temperatures from these winters, we made initial attempts to provide an efficient method to calculate accumulated chill units that are then correlated with the level of flower induction in olives. While the new models tested here appear to predict the positive contribution of cold temperatures, they lack in accurately predicting the reduction in cold units caused by warm temperatures occurring during winter.
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spelling pubmed-101438902023-04-29 Studying Parameters Affecting Accumulation of Chilling Units Required for Olive Winter Flower Induction Engelen, Chaim Wechsler, Tahel Bakhshian, Ortal Smoly, Ilan Flaks, Idan Friedlander, Tamar Ben-Ari, Giora Samach, Alon Plants (Basel) Article With global warming, mean winter temperatures are predicted to increase. Therefore, understanding how warmer winters will affect the levels of olive flower induction is essential for predicting the future sustainability of olive oil production under different climactic scenarios. Here, we studied the effect of fruit load, forced drought in winter, and different winter temperature regimes on olive flower induction using several cultivars. We show the necessity of studying trees with no previous fruit load as well as provide evidence that soil water content during winter does not significantly affect the expression of an FT-encoding gene in leaves and the subsequent rate of flower induction. We collected yearly flowering data for 5 cultivars for 9 to 11 winters, altogether 48 data sets. Analyzing hourly temperatures from these winters, we made initial attempts to provide an efficient method to calculate accumulated chill units that are then correlated with the level of flower induction in olives. While the new models tested here appear to predict the positive contribution of cold temperatures, they lack in accurately predicting the reduction in cold units caused by warm temperatures occurring during winter. MDPI 2023-04-20 /pmc/articles/PMC10143890/ /pubmed/37111937 http://dx.doi.org/10.3390/plants12081714 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Engelen, Chaim
Wechsler, Tahel
Bakhshian, Ortal
Smoly, Ilan
Flaks, Idan
Friedlander, Tamar
Ben-Ari, Giora
Samach, Alon
Studying Parameters Affecting Accumulation of Chilling Units Required for Olive Winter Flower Induction
title Studying Parameters Affecting Accumulation of Chilling Units Required for Olive Winter Flower Induction
title_full Studying Parameters Affecting Accumulation of Chilling Units Required for Olive Winter Flower Induction
title_fullStr Studying Parameters Affecting Accumulation of Chilling Units Required for Olive Winter Flower Induction
title_full_unstemmed Studying Parameters Affecting Accumulation of Chilling Units Required for Olive Winter Flower Induction
title_short Studying Parameters Affecting Accumulation of Chilling Units Required for Olive Winter Flower Induction
title_sort studying parameters affecting accumulation of chilling units required for olive winter flower induction
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10143890/
https://www.ncbi.nlm.nih.gov/pubmed/37111937
http://dx.doi.org/10.3390/plants12081714
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