Search results for "grape"

Remineralization potential of grape seed extract hydrogels on bleached enamel compared to fluoride gel : an in vitro study

2019

Background Remineralizing of bleached enamel is a common procedure that aims to compensate enamel mineral lose. This study aimed to evaluate the remineralization effectiveness of experimentally prepared grape seed extract hydrogels (GSE) compared to fluoride gel on bleached enamel. Material and methods Thirty extracted maxillary incisor were bleached using white smile bleaching agent. Bleached specimens were divided into three groups (10/group) according to the remineralizing agents tested: [GSE 6%, GSE 10%, or fluoride gel]. After bleaching and remineralization procedure, the specimens were stored in artificial saliva at 37°C. Micro-hardness and Energy-Dispersive X-ray and ultra-morphologi…

The sequencing of the complete genome of a Tomato black ring virus (TBRV) and of the RNA2 of three Grapevine chrome mosaic virus (GCMV) isolates from…

2014

The complete genome of a Tomato black ring virus isolate (TBRV-Mirs) (RNA1, 7,366 nt and RNA2, 4,640 nt) and the RNA2 sequences (4,437; 4,445; and 4,442 nts) of three Grapevine chrome mosaic virus isolates (GCMV-H6, -H15, and -H27) were determined. All RNAs contained a single open reading frame encoding polyproteins of 254 kDa (p1) and 149 kDa (p2) for TBRV-Mirs RNA1 and RNA2, respectively, and 146 kDa for GCMV RNA2. p1 of TBRV-Mirs showed the highest identity with TBRV-MJ (94 %), Beet ringspot virus (BRSV, 82 %), and Grapevine Anatolian ringspot virus (GARSV, 66 %), while p2 showed the highest identity with TBRV isolates MJ (89 %) and ED (85 %), followed by BRSV (65 %), GCMV (58 %), and GA…

Precision Management of Fruit Trees

2022

The aim of the Special Issue “Precision Management of Fruit Trees” was to collect new insights to support the adoption of advanced, efficient, and sustainable management techniques in the fruit production sector. Indeed, this is an opportunity offered by the technological innovations adopted using new-generation sensors and implemented through precise management operations. This Special Issue contains 11 scientific articles contributing to our knowledge on the precision management of fruit trees, indicating the high activity of this sector and possibly leading to the application of new techniques/protocols to overcome global and rapidly changing environmental issues. Scalisi et al. [1], in …

EFFECTS OF LIGHT REDUCTION AT BLOOM ON FRUITS SET IN BLACK MAGIC TABLE GRAPES CV IN EARLY AND LATE PRODUCTION CICLES

2013

A shading experiment in ‘Black Magic’ cv was conducted in Sicily to test a new thinning method, aiming to reduce the no. berries/cluster, maximising quality and value of the production. A reduction of intercepted light was imposed at the 65 stage of the BBCH scale (50% cap fall) for 12 days. The soilless greenhouse conditions allowed two growing cycles occurring under different climate conditions, an early (end of March flowering) and a late production cycle (beginning of August flowering). During the shade treatment, net photosynthetic rate was significantly reduced by 82% and 96% in the late and early production cycles, respectively. The sum of flowers and berries dropped in the untreated…

Video of Current Rootstock Use and Rootstocks Needs for the future: SOUTHERN ITALY, SICILY AND ARID MEDITERRANEAN AREAS

2013

Grapevine rootstocks have been an essential component of grape growing for over 150 years as rootstocks can impart desirable characteristics for grapevine growth. This review examined Italian and Sicilian literature on rootstocks, focusing on key issues including updates on needs for the future. Other related issues include the performance of major selection traits associated with salinity, drought, potassium uptake, vegetative growth, grape and wine quality and the propagation of grafted vines. Research on rootstocks started in Italy, and of course in other European Countries, once phylloxera was imported. In Italy, phylloxera was detected in Agrate (north Italy) in August 1879, but it may…

The use of vineyard spectral signatures to identify table grape cultivars

2021

Vineyards have characteristic responses to sunlight. The reflectance values at the different wavelengths are typical of vegetation and define its spectral signature. The aim of this work was to determine the spectral signatures of table grape vineyards located in the production area of Robinvale (Victoria, Australia) in order to identify cultivars in the vineyard. Spectral signatures were detected from images in eight bands from the Worldview 3 platform. Spectral signatures for a representative number of plots were extracted using satellite reflectance images for each cultivar. Spectral signatures were also collected in the field, from the same cultivars, with a FieldSpec® HandHeld 2 portab…

The Viticulture of Lampedusa, a heritage which is disappearing before being known.

2010

The study is focused on the viticulture of the island of Lampedusa, located in the strait of Sicily 113 km from the African coast and 205 km from the Sicilian coasts. It is a study that has no previous recorded documentations. The research was conducted on the island to a various number of vineyard farmers in order to describe cultivation techniques and the grape germplasm utilized. Viticulture is present on several tens of hectares but in recent years is vanishing quickly and currently survives thanks to a small number of old farmers who still practice agriculture. Moreover, the strong competition for land use strongly linked to tourism, makes the survival of farming in general even more p…

Discrimination of hand fresh squeezed and commercial grapefruit juices by electronic nose.

2013

ULTERIORI APPROFONDIMENTI DEGLI EFFETTI DELLA DIMENSIONE DEGLI ACINI SULLA QUALITA’ DELL’UVA NELLA CV CABERNET SAUVIGNON

2012

In this study we reported the results of a second year of study conducted during 2008 season on irrigated Cabernet Sauvignon\ 1103 P vineyard. We addressed the study of whether differences in berry size (within a population of berries from different bunches) would lead to differences in qualitative parameters and whether flowering process can influence berries variability and qualitative parameters. Berries were classified at pea size into two categories according to their equatorial diameter: ≤ 7 mm as small and ≥ 9 mm as large berries. Development of the two berry categories was evaluated from “pea size” (12th June) to harvest (16th September) in terms of berry mass, equatorial berry diam…

Somatic embryogenesis of Vitis vinifera L. (cv Sugraone) from stigma and style culture

2015

Somatic embryo and plant regeneration were induced from stigma and style culture of grapevine (Vitis vinifera L. cv. Sugraone). To obtain somatic embryogenesis, explants were cultured on Nitsch and Nitsch basal medium (NN) supplemented with 88 mM sucrose and various combinations of the auxin β-naphthoxyacetic acid (NOA, 0-10 μM) and the cytokinin 6-benzylaminopurine (BA, 0-9 μM). Growth regulators (BA and NOA) in the culture medium were essential for induction of somatic embryogenesis since explants incubated on hormone-free medium never regenerated somatic embryos. Usually, the regenerated somatic embryos become visible as small white globular structures on the surface of the callus 3-4 mo…