The effect of temperature and genotype on pollen performance in olive (Olea europaea L.)

The utility of electrospun nanofibre mats for in vitro germination of Artabotrys hexapetalus pollen

“…In vitro pollen germination tests are useful for assessing pollen viability and performance independent of the influence of the female reproductive system 1 . The use of liquid or agar-gelled medium with the various ingredients is the most common physical support to germinate pollen in vitro.…”

Respuesta del olivo (Olea europaea L.) ‘Manzanillo’ a la aplicación de biorreguladores y urea foliar y su interacción con altas temperaturas

“…(Fernández-Escobar, Ortiz-Urquiza, Prado & Rapoport, 2008), demonstrating a lower flower formation or lower complete flower formation. All this is reflected in low percentages of fruit set and therefore, in a drastic fall of fruit production (Cuevas & Polito, 1997;Ramírez-Santa Pau, Navarro & Rallo, 2002); in addition, if climatic conditions, especially high temperatures, were unfavorable, fruit set is further reduced showing only PF (Koubouris et al, 2009;Koubouris, Metzidakis & Vasilakakis, 2010;Vuletin et al, 2013), as happened in this study during the second year of the study. As an option, several studies have shown that the artificial pollen application can improve fruit set and olive fruit production, as well as reduce the presence of PF, using the appropriate pollinators (Ayerza & Coates, 2004;Cuevas & Polito, 1997;Koubouris et al, 2010;Navarro, Fimbres, López & Robles, 2010;Navarro & López, 2003Sibbett, Polito & Ferguson, 1992;Taslimpour, Bonyampour & Rahemi, 2008).…”

“…In the case of the Manzanillo variety, in the region of Caborca and in some other olive regions, the production is erratic due to the low percentages of fruit set. This is because the variety has self-compatibility problems (Cuevas & Polito, 1997;Koubouris, Metzidakis & Vasilakakis, 2009;Martin, Ferguson & Sibbett, 2005;Navarro, Grijalva & López, 2003;Vuletin, Perica, Goreta & Poljak, 2013), which is accentuated under high temperatures conditions in the flowering period (Koubouris et al, 2009, Navarro et al, 2003, Vuletin et al, 2013. Therefore, it has been developed the information tending to improve the olive fruit set.…”

“…En el caso del cultivar Manzanillo, en la región de Caborca y en algunas otras regiones olivareras la producción es errática debido a los bajos porcentajes de amarre de frutos. Lo anterior es debido a que este cultivar tiene problemas de autocompatibilidad (Cuevas & Polito, 1997;Koubouris, Metzidakis & Vasilakakis, 2009;Martin, Ferguson & Sibbett, 2005;Navarro, Grijalva & López, 2003;Vuletin, Perica, Goreta & Poljak, 2013), lo cual se acentúa bajo condiciones de altas temperaturas en el periodo de floración (Koubouris et al, 2009;Navarro et al, 2003;Vuletin et al, 2013). Por ello, se ha desarrollado la información tendiente a mejorar el amarre de frutos de olivo.…”

Response of maize and olive to climate change under the semi-arid conditions of southern Spain

“…It is noteworthy that the phenological phases are largely controlled by temperature and day length . During the phenological period of flowering, high temperatures affect the number of flowers per plant, limit the pollen release and diminish the pollen viability, flower fertility and therefore the viable seeds Wheeler et al, 2000;Vuletin Selak et al, 2013). On the other hand, crop growth has been defined as an increase in the size of an individual or organ with time and depends on the capture of resources including CO 2 , radiation, water, N and other nutrients (Sugiyama, 1995;.…”