Search results for " Peach"

Carbon sequestration potential of Italian orchards and vineyards

2017

From 2004 to 2012 carbon (C) fluxes between the soil-vegetation system and the atmosphere in apple, grape, olive and orange orchards planted in different Italian regions were measured. Above-ground net primary productivity (ANPP) ranged from 4 (olive) to 9 (apple) Mg C ha-1. Alley grass contribution to total ANPP significantly varied among the systems, reaching a maximum of 60% in vineyards. The harvest index ranged from 46% for apple, to 58% for orange, 60% for grape and 41% for olive, while abscised leaves accounted for 30% of ANPP, on average. Soil respiration fluxes ranged from 6 (orange) to 10 (grape) Mg C ha-1. Results indicate the potential of these fruit crop to sequester atmospheri…

Fresh-cut storage of fruit and fresh-cuts affects the behaviour of minimally processed Big Bang nectarines ( Prunus persica L. Batsch) during shelf l…

2018

Abstract Nectarine can be minimally processed to successfully produce ready-to-eat fresh-cuts fruit. The aim of this work was to study the combined effect of the ripening stage of cold stored fruit before processing and the length of the storage period of fresh-cut slices after minimal processing, on the behaviour of minimally processed “Big Bang” nectarines during shelf life. ‘Big Bang’nectarine slices obtained from fruit stored at 1 ± 0.5 °C (RH = 90%) for 1 d, 10 d and 15 d were stored for 0, 3, 5, 7, 12 d. at 5 °C. At the end of each storage period, visual quality, color (L*, a* and b*), phenols and carothenoids content, TSS, TA were measured together with in-package CO2 and O2. Despite…

A survey of carbon sequestration potential of orchards and vineyards in Italy

2016

Orchards and vineyards are important land use types in Southern Europe. In spite of their potential to sequester atmospheric C and to mitigate climate change, relatively little is known regarding the influx and outflux of C in these systems. The aim of this work is to provide data on the C budget, including net primary production (NPP), C removal through production, and C sequestration potential for the vineyards and the main fruit tree species (apple, citrus, olive, and peach) grown in Italy. Standing biomass and NPP were measured, and net ecosystem exchange and net C balance assessed directly, through either eddy covariance technique, or considering NPP and heterotrophic respiration. Abov…

CHARACTERIZATION AND DEVELOPMENT OF DIFFERENT METHODS TO EXTEND THE SHELF LIFE OF FRESH-CUT FRUIT

2017

La frutta di IV gamma è un prodotto altamente deperibile, con una shelf-life molto corta (5-7 giorni) influenzata dalle numerose variabili che entrano in gioco accelerando la senescenza del prodotto. Il suo alto valore aggiunto può giustificare l’utilizzo di soluzioni di conservazione più o meno costose. I metodi attualmente esistenti sono numerosi, spaziano dal dipping in sostanze naturali o sintetiche, all’utilizzo di packaging attivi, all’impiego di atmosfere modificate, ecc. Queste metodiche di conservazione incidono in maniera diversa sui costi finali del prodotto ma soprattutto sulla conservazione dello stesso e sul mantenimento della sua qualità lungo tutto il periodo di shelf-life. …

Responses of Prunus ferganensis, Prunus persica and two interspecific hybrids to moderate drought stress

2003

Prunus ferganensis (Kost. & Riab) Kov. & Kost, a close relative of the cultivated peach (Prunus persica (L.) Batsch.), is native to arid regions of central Asia and may possess traits valuable for improving drought tolerance of commercial peach varieties. One distinguishing feature of P. ferganensis is its prominent, elongated, unbranched leaf venation pattern, which behaves as a simple recessive trait in segregating populations of P. ferganensis x P. persica hybrids. To understand whether this trait could be used as a marker in breeding for drought tolerance, we investigated the association between leaf morphological and physiological parameters related to drought response in P. ferganensi…

Prove di controllo di Ceratitis capitata (Wiedemann) in pescheti, aranceti e clementineti biologici

2011

Tests to control Ceratitis capitata (Wiedemann) in organic peach, orange and clementine orchards. The Mediterranean Fruit Fly, Ceratitis capitata (Wiedemann), is considered the key pest of several fruit species in organic farming. Experiments for the control of this pest have been carried out in organic peach orchards (in 2009 on a medium-late ripening cultivar, ‘Bella di Bivona’; in 2011 on a very early ripening one, ‘San Pedro’) testing nets, spinosad and pyrethrum (year 2009), in orange citrus groves (cv. Navelina, early ripening period), comparing spinosad, kaolin and bentonite (years 2009 and 2010) and in a clementine grove (cv. Monreal), using kaolin and bentonite. The very early ripe…

Antioxidant activity in solution and biological membranes of seven cultivars of Sicilian peach (Prunus Persica, L. Mill).

2008

Comportamento agronomico di quattro nuovi portinnesti ibridi pesco x mandorlo in un impianto ad alta densità in Sicilia

2009

The present study was aimed to evaluate the agronomic behavior of different rootstocks, recently licensed by the Dipartimento di Coltura e Difesa delle Specie Legnose of the University of Pisa, and tested in a high density planting system (2220 trees/ha). Trials were carried out in an experimental orchard established by the Dipartimento di Colture Arboree of the University of Palermo and located in Sicily (Sciacca – Agrigento – 150 m a.s.l.). The observations were carried out on clonal rootstocks: I.S. 5/8 (Polluce); I.S. 5/19 (Castore); I.S. 5/23; I.S. 5/29 and GF 677 grafted at dormant bud with the low chill requirement cultivar “Tropic Snow”. The orchard was established in 2004, trees we…

CHANGES IN ASCORBIC ACID CONTENT IN FRESH CUT SICILIAN YELLOW-FLESH PEACHES

2015

The traditional yellow-flesh peach cultivars 'Settembrina' and 'Ottobrina' di Leonforte ripen respectively during the first 10 days of September, and the first 10 days of November, in Sicily, Italy. During pit hardening, fruit are covered with a paper bag in order to protect them from Mediterranean fruit fly. To understand their behaviour in terms of postharvest maintenance and suitability for minimal processing, 'Settembrina' and 'Ottobrina' di Leonforte were processed (i.e., cleaned, washed, peeled, cut, dipped and packed) to obtain fresh-cut peaches. Fresh cut slices were stored in perforated or bi-oriented polystyrene bags, after soaking in either a 2% ascorbic acid and 1% calcium lacta…

Propagation techniques and nursery management for the production of certified peach plants in Europe

2022

The propagation of fruit trees, particularly peaches, nectarines and canning clingstone, has reached highly specialized levels since the 1960s. Over the years, the classic seed rootstocks have been replaced by numerous rootstocks produced in vitro, expanding the range of technical solutions for the different soil and climatic growing conditions of several areas. Thanks to the new genotypes from international breeding programs, it was thus possible to renew the cultivated varietal platform several times. Propagation techniques have also undergone an evolution, adopting solutions aimed at shortening nurseries’ production cycles by using June budding or micrografting. Finally, there are differ…