Influence of temperature and rainfall on timing of olive (<i>Olea europaea</i>) flowering in southern Italy

Bonofiglio, Tommaso; Orlandi, Fabio; Sgromo, Carlo; Romano, Bruno; Fornaciari, Marco

doi:10.1080/01140670809510221

Cited by 49 publications

(24 citation statements)

References 18 publications

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“…The influence of the meteorological parameters on both pollen emission and pollen dispersion have been widely studied (Recio et al 1996(Recio et al , 1997Galán et al 2001Galán et al , 2005Orlandi et al 2002Orlandi et al , 2010Díaz de la Guardia et al 2003;Vázquez et al 2003;Bonofiglio et al 2008). According to the present study, accumulated variables of temperature and precipitation since the start of the pre-flowering period have been shown to be two of the main factors affecting olive pollen levels.…”

Section: Discussionmentioning

confidence: 48%

“…Therefore, wind activity could be other reason to explain the high amounts of pollen registered in Alcalá la Real, which clearly received pollen grains in periods in which there was not effective flowering in the around area. Although meteorological parameters have a clear effect on the olive pollen season, several studies have demonstrated that the olive tree reproductive development is also conditioned by the satisfaction of certain chilling and heat requirements, which differ geographically (Wielgolaski 1999;Orlandi et al 2005;Galán et al 2005;Bonofiglio et al 2008Bonofiglio et al , 2009). Hence, it would be interesting to be able to widen the present study and to relate the altitudinal fluctuations observed in the olive pollen season with different bioclimatic parameters and, therefore, should be considered in subsequent researches.…”

Section: Discussionmentioning

confidence: 99%

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Altitudinal fluctuations in the olive pollen emission: an approximation from the olive groves of the south-east Iberian Peninsula

Mendías

Valenzuela

2011

Aerobiologia

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The possible existence of altitudinal fluctuations in the seasonal behaviour of the olive pollen emission was studied. Three pollen volumetric samplers distributed in olive groves all over the altitudinal cliseries of the province of Jaén (south-east Spain) were used. Pollen emission data were recorded during a 3-year period (2007)(2008)(2009). This research has revealed the effect of altitude on consecutive olive pollen season in the province of Jaén. The first pollen grains were detected in the olive growing areas located within the area of the Guadalquivir River, where are found the lowest levels of altitude into the province. A notable delay in the pollination season of the olive groves located at higher altitudes was observed. Geographical fluctuations on both daily pollen concentrations and number of critical days were also detected. Accumulated variables of temperature and precipitation since the start of the pre-flowering period have been shown to be two of the main factors affecting olive pollen levels. The fluctuations observed in the olive pollen season may similarly occur in the case of other allergenic plant species such as cypress (Cupressaceae), plane tree (Platanaceae) or grasses (Poaceae). Furthermore, and for the clinical consequences of the findings presented in this study, we believe that it would be advisable to install a microaerobiological network permanently in the province of Jaén.

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Section: Discussionmentioning

confidence: 48%

Section: Discussionmentioning

confidence: 99%

Altitudinal fluctuations in the olive pollen emission: an approximation from the olive groves of the south-east Iberian Peninsula

Mendías

Valenzuela

2011

Aerobiologia

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“…To examine the relationship between climate and a determined phenological event, the correlation between the values of meteorological parameters registered during the specific period and the starting dates of phenological manifestation were calculated (Jaagus and Ahas 2000;Ahas and Aasa 2006;Emberlin et al 2007;Bonofiglio et al 2008). In our study, to determine the pre-flowering period that greatly influences the olive flowering date, the mean temperature values (calculated in 7 determined pre-flowering periods) were correlated to the flowering dates expressed in days from January 1st (SF and FF).…”

Section: Determination Of the Relationships Between The Flowering Datmentioning

confidence: 99%

Evidences of olive pollination date variations in relation to spring temperature trends

et al. 2009

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Airborne pollen concentration patterns reflect flowering phenology of a given species, and it may be a sensitive regional indicator in climate change studies. This paper presents the relationship between a strategic biological event, such as olive flowering, and the air temperature trend, registered over a large scale in the Umbria region. The aim of the study was to determine relationships between phenological behaviour (flowering) of olive trees and the air temperature trend in the Umbria region. The phenological data on flowering phase were registered indirectly through an aerobiological monitoring technique. The obtained results showed a strong relationship between phenology and thermal trend. This characteristic was confirmed from results of correlations between temperature (mean temperature from 1st March) and flowering dates, especially that of full flowering (r = -0.9297). Moreover, the results showed an advance trend of 6, 8 and 10 days, respectively of start, full and end of flowering dates. The advance of the recorded flowering time in this period is to ascribe mainly to the increase of mean temperature and above all to that registered in months of May and June.

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“…For the olive, as for many other crops, flowering is a key phenological stage since the sensitivity to extreme events related to heat and water stress during this period significantly affects the final oil yield (Ayerza and Sibbett, 2001;Rapoport et al, 2012). Traditionally, olive flowering date has been estimated by pollen capturing (Galán et al, 2005;Bonofiglio et al, 2008;Avolio et al, 2012;Orlandi et al, 2013) or by simulation models based on phenological observations (Orlandi et al, 2005a). In this sense, different approaches have been considered for flowering date simulation.…”

Section: Introductionmentioning

confidence: 99%

Impact of changes in mean and extreme temperatures caused by climate change on olive flowering in southern Spain

Gabaldón-Leal

Ruiz‐Ramos

Rosa

et al. 2017

Intl Journal of Climatology

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Due to the severe increase projected in future temperatures and the great economic and social importance of olive growing for vast agricultural areas in the Mediterranean Basin, accurate climate change impact assessment on olive orchards is required. The aim of this study is to assess the flowering date and the impact of mean and extreme temperature events on olive flowering in southern Spain under baseline and future climate conditions. To that end, experimental data were obtained from ten olive genotypes: six well‐known olive cultivars in the region, one cultivar, ‘Chiquitita’, obtained via conventional breeding, and three wild olives from the Canary Islands. A site‐specific model calibration was conducted resulting in satisfactory performance with an average error of 2 days for flowering date estimation under baseline and future climate conditions, and a RMSE equal to 5.5 days in the validation process. The outputs from 12 regional climate models from the ENSEMBLES European project with a bias correction in temperature and precipitation were used. Results showed an advance in the olive flowering dates of about 17 days at the end of the 21st century compared with the baseline period (1981–2010), and an increase in the frequency of extreme events around the flowering period. A spatial analysis of results identified the areas in southern Spain that are most vulnerable to climate change impact caused by the lack of chilling hours accumulation (areas located on the Atlantic coast and the south‐eastern coast) and by the occurrence of high temperatures during the flowering period (areas located in the north and north‐eastern areas of the Andalusian region).

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Influence of temperature and rainfall on timing of olive (Olea europaea) flowering in southern Italy

Cited by 49 publications

References 18 publications

Altitudinal fluctuations in the olive pollen emission: an approximation from the olive groves of the south-east Iberian Peninsula

Altitudinal fluctuations in the olive pollen emission: an approximation from the olive groves of the south-east Iberian Peninsula

Evidences of olive pollination date variations in relation to spring temperature trends

Impact of changes in mean and extreme temperatures caused by climate change on olive flowering in southern Spain

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