Inflorescence architecture of olive

Floral Biology: Implications for Fruit Characteristics and Yield

“…Competition for resources among flowers in olive is reported in many studies (Suarez et al, 1984;Cuevas et al, 1994;Lavee et al, 1999;Seifi et al, 2008;Rapoport & Rallo, 1991;Cuevas et al, 1995). Rugini and Pannelli (1993) showed that fruit set increases when shoot development is mechanically or chemically slowed down, further supporting the hypothesis that competition drives fruit set.…”

“…Conditions that affect competition among flowers/fruits or that decrease available resources, usually result in increased abortion and decreased fruit set. Among such conditions are: N deficiency, foliar diseases and low leaf-tobud ratio, (Petri, 1920;Morettini, 1951;Uriu, 1953Uriu, , 1959Fernandez-Escobar et al, 2008); water stress (Melis, 1923;Brooks, 1948;García Gálvez, 2005); insufficient light (Bottari, 1951;Dimassi et al, 1999); adverse climactic conditions and high yield in previous year (Rallo et al, 1981;Rapoport & Rallo, 1991;Lavee, 1996;Cuevas et al, 1994); abundant flowering in current year (Reale et al, 2006); and unfavorable inflorescence position in the canopy (Cuevas & Polito, 2004;Seifi et al, 2008). Aborted flowers do not contain starch, suggesting a link between nutrient availability and pistil abortion (Reale et al, 2009).…”

“…Aborted flowers do not contain starch, suggesting a link between nutrient availability and pistil abortion (Reale et al, 2009). Removing part of the inflorescences reduces drastically the ovary abortion in olive (Seifi et al, 2008).…”

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

“…En este tercer ciclo de producción, se tuvieron poco más del 62 % de los días del periodo de floración, con temperaturas máximas superiores a los 27 °C (Cuadro 4); en cambio, en el segundo ciclo todos los días se tuvieron temperaturas máximas superiores a 27 °C (Bradley, Griggs & Hartmann, 1961;Fernández-Escobar, Gómez-Valledor & Rallo, 1983), afectando seguramente el proceso de floración y en particular la viabilidad y la germinación del polen, el crecimiento del tubo polínico y la fecundación (Cuevas, Pinillos & Polito, 2009;Fernández-Escobar et al, 2008) reflejándose finalmente en valores nulos de amarre de frutos y la abundancia de FP (Cuadro 4), tal como lo señalan algunos autores (Ayerza & Coates, 2004;Cuevas & Polito, 1997;Koubouris et al, 2010; 8-9 days (mean of 8.5) with maximum temperatures higher than 27 °C, respectively. This occurrence of high temperatures in an early, intermediate or late phase is very important, since it has been found that in the case of 'Manzanillo' the percentage of perfect or hermaphrodite flowers is significantly lower at the end of the flowering period, so that staminate flowers are more abundant (Seifi, Guerin, Kaiser & Sedgley, 2008). In fact, these authors report that the first flowers that open in the inflorescences of 'Manzanillo' are the terminals and regularly these flowers are perfect, and they have a greater persistence of the petals.…”

Nutritional and Proteomic Profiles in Developing Olive Inflorescence

“…The lateral axes may in turn branch, resulting in a tertiary branched panicle (Weis et al, 1988;Seifi et al, 2008;Ganinoa et al, 2011).…”