Phenological changes in olive (Ola europaea L.) reproductive cycle in southern Spain due to climate change
Journal Title: Annals of Agricultural and Environmental Medicine - Year 2015, Vol 22, Issue 3
Abstract
Introduction. Modifications of crop species phenology due to a changing environment are of interest because of their impact on fruit set and final harvest. Pre-flowering and flowering phenophases in olive groves at different sites of southern Spain were examined, in order to chart potential trends and determine major correlations with weather-related parameters, especially temperature and water availability. The high prevalence of olive pollen allergy in the Mediterranean population makes this study highly relevant. Materials and methods. Ten sites in Cordoba province (Spain) during a 17-year period (1996–2012). BBCH phenology scale. Meteorological data from 1960 were analyzed; data from 1996 included on modeling analysis. Linear Mixed Models (LMMs) were developed, combining phenological and meteorological data. Results. Since 1960, local spring temperatures have increased 1.5ºC, the number of spring rainfall days has fallen 11 days, total rainfall has declined 150 mm. Despite phenological differences between sites, attributable to altitude, phenological development during the season followed a similar pattern. Flowering dates advanced 2 days, while inflorescence emergence was delayed 24 days. Trend slopes revealed differences, an earlier period (1996–2002) with a sharp flowering advance of 15 days, and a later period (2003–2012) characterized by a gradual advance and a high bud emergence delay of 22 days. Conclusions. LMMs was revealed as an appropriate technique for phenology behaviour analysis displaying both fixed and random interactions. Cultivars grown in the study province are adapted to climate with a synchronized response, although climate change is affecting theolive reproductive cycle in southern Spain; therefore, the timing of pollen release, with subsequent consequences on allergic population as phenological changes, could have impacts on flowering period and pollen production. Further investigation is required of the implications for crop production in Mediterranean ecosystems.
Authors and Affiliations
Herminia Garcia-Mozo, Jose Oteros, Carmen Galan
Keywords
Related Articles
- EP ID EP80986
- DOI -
- Views 141
- Downloads 0
Level of DNA damage in lead-exposed workers.
Lead plays a significant role in modern industry. This metal is related to a broad range of physiological, biochemical and behavioural dysfunctions. The genotoxic effects of lead have been studied both in animals and hum...
The toxic effect of permethrin and cypermethrin on engorged Ixodes ricinus females
introduction. [i]Ixodes ricinus[/i] tick is of great medical and veterinary importance and has a wide range of geographical distribution. The study presents the effect of permethrin (Per) and cypermethrin (CM) on engorge...
Leisure time physical activity of young women from the Carpathian Euroregion in relation to the Body Mass Index
Carpathian Euroregion gathers the population of 5 countries, including Poland, Slovakia, Hungary and Romania- the European Union members, as well as Ukraine. Young women are statistically less involved in high-intensity...
Pulmonary lymphangitic carcinomatosis in the course of gastric cancer – Case report
Pulmonary lymphangitic carcinomatosis is a special type of diffuse metastasis of carcinoma in the lymphatic vessels of the lungs. Lymphangitic carcinomatosis is commonly observed in malignancies of the breast, lung, panc...
The effect of fish oil supplementation of pigs maternal diet during pregnancy and lactation, and the effect of fish oil addition to formula milk on gene expression and fatty acids composition in small intestine, liver and muscle of offspring
Introduction: The supplementation of preterm infant formulas with n-3 fatty acids is now well accepted, while the benefits of adding n-3 fatty acids to formula milk for term infants remains controversial.Objective: To in...