Search results for "olive"

Relationship between tree water status and physiology, yield, and fruit quality in the table olive (Olea europaea sativa L.) cultivar ‘Nocellara del …

2012

Although the olive (Olea europaea sativa l.) is considered a xerophytic species, long periods of water stress and high temperatures during summer months can greatly affect plant physiology and productivity. In recent years, the use of plant-based water status indicators have become popular in the study of plant-water relationships and in the design of irrigation programs, particularly midday stem water potential (ψstem). The current trend in the irrigation of olive trees is in the development of Deficit Irrigation (DI) systems whereby the water is applied at a rate which is lower than evapotranspiration needs, resulting in only very small reductions in yield. Rather than working towards min…

ASPETTI ECOFISIOLOGICI, PRODUTTIVITÀ E QUALITÀ DEL PRODOTTO IN UN OLIVETO SUPERINTENSIVO IN SICILIA

2011

Recovery and genotyping ancient Sicilian monumental olive trees

2023

The long-lived and evergreen olive tree dominates the Mediterranean landscape, representing an agroecological and cultural symbol and a genetic heritage of inestimable value. Sicily, for historical, geographical, and cultural reasons, has a very rich and distinctive olive germplasm. In this work, a large survey was conducted to discover, collect, and characterize the genetic diversity of centennial monumental olive trees from historical sites, such as the Greek Temple Valley (Agrigento), ancient gardens, or farmland present in the western part of the island. Trees were chosen based on their height, trunk, stump size, and presumed age; particularly, only olive trees with an age estimated at …

Il settore dell’olivicoltura da tavola in Italia: Situazione e prospettive

2020

Table olive Industry in Italy The Italian table olive industry is almost completely located in the southern regions: Sicily and Apulia together account for about two thirds of the entire national production. “Nocellara del Belice”, “Nocellara etnea”, “Bella di Cerignola”, “Ascolana” and “Itrana” are the leading cultivars, together with a large number of other local traditional varieties, often utilised for a double purpose (table olives and oil production). Although Italy is nowadays largely dependent (more than 50%) on importations from other countries (mainly Spain, Greece and Morocco) the domestic production has been declining in the last thirty years and currently accounts for about 2-3…

From the old agroforestry systems of the modern high-density olive groves: which Carbon sequestration?

2019

Olive tree (Olea europaea L) represents one of the most important evergreen tree species. In Sicily agroforestry systems based on the olive tree, named traditional olive orchard, are common and often are grown together to other tree crops, such as vineyards, or with cereals or forages. This last are usually grown in the interspace between rows and particularly in olive groves were planting density is rather low (less than 200 trees/ha). To increase crop efficiency and to reduce costs of harvesting, by using proper machines, in the last 20 years in the olive industry have been developed new planting systems: Intensive (up to 400 trees/ha), and the Superintensive (up to 2000 trees/ha). Within…

progettazione e impianto dell'oliveto

2011

The establishment of new olive orchards represents the main way to renovate the olive sector in Italy, because they allow high yields and mechanization of cultural practices, particularly harvesting. The design of an olive orchard implies several important choices (area, cultivar, training system, planting density, orientation of the rows, type of trees) which must be made in relation to several factors, such as farm size, type of product that the grower wants to obtain (commercial target), system to mechanize harvesting, kind of cultivation (conventional, integrated or organic). The application of correct techniques for the preparation of the site, disposal of excessive water, execution of…

STUDY ON GAMETIC EMBRYOGENESIS VIA IN VITRO ANTHER AND ISOLATED MICROSPORE CULTURE IN FRUIT CROPS

2014

Fruit breeding is mainly based on both conventional (hybridization, mutation and selection) or biotechnological methods (somatic hybridization, genetic transformation and haploid production). The genetic improvement through the conventional methods is limited by many factors such as fruit trees long juvenile period, high heterozygosity, large size and sexual incompatibility. Haploids and doubled haploids, obtained through gametic embryogenesis have a potential use in fruit crops genetic improvement. The change of the microspores fate from the normal gametopytic pathway towards the sporophytic induction is affected by numerous factors. Genotype, medium composition and stress were considered …

High quality extra virgin olive oil from olives attacked by the olive fruit fly, Bactrocera oleae (Rossi) (Diptera Tephritidae): which is the tolerab…

2017

The infestation due to the olive fruit fly, Bactrocera oleae (Rossi), the key pest in most of world olive groves, has been monitored in six years, from 2004 to 2008 and in 2014, in eight coastal Sicilian olive groves consisting of ‘Cerasuola’ and ‘Nocellara del Belice’ cultivars. Infestation was recorded following the classical sampling method based on olive collection and dissection, in order to count live olive fruit fly instars (eggs, larvae and pupae) and exit holes. Four different infestation indexes, all of them calculated using data recorded at harvest, have been used to assess their relationship with the main three quality parameters of the olive oil obtained from the same olive sam…

La componente suolo nel bilancio del carbonio di un oliveto

2011

The Pattern of Rare Earth Elements Like a Possible Helpful Tool in Traceability and Geographical Characterization of the Soil-Olive System (Olea euro…

2022

The identification of a product, with its geographical origin, is a guaranty of the value of the foodstuff and protection from potential fraud. Extra virgin olive oil is produced or marketed as a single variety or a blend of two or more cultivars, often of different geographic origins. Therefore, to study a possible link between the soil and olive oil, we accounted crucial to analyse the behaviour of olive of different cultivars. We studied Rare Earth Elements (REE) amounts and their relationship to trace their distribution from soil to the olive pulp (Olea europea L.). The results obtained pointed out that the different cultivars of Olea did not drive significant differences in reciprocal …