Search results for "vit.C"

Adoption of practices of environmental sustainability in viticulture: first suggestions from Canton of Ticino

2018

The paper investigates the practices of environmental sustainability implemented in viticulture to minimize the negative impact of agricultural operations on the environment. Through the use of an electronic questionnaire, developed on a theoretical approach based on the Stakeholders Theory and the Theory of Planned Behaviour, and sent to a sample of wineries of the Canton of Ticino, the research pursues a triple aim: (i) to understand which are the main practices and initiatives of environmental sustainability adopted at firm level; (ii) to identify the main stakeholders that affect the choices of managers and owners to orient the firms towards the adoption of practices aimed at greater en…

Analysis of the energetic flows through the sebal application to the assessment of the actual evapotranspiration in a Napa Valley vineyard California…

2009

The use of water resources is constantly growing in agriculture industry and the reduction of the this resource is due by both anthropogenic and climate factors. Under this perspective it is necessary to develop monitoring systems able to forecast the consumption of water. The knowledge of the actual water demand of a crop is therefore strategic for the rational use of resources and to improve the quality of the crop production. Recent applications of remote sensing in agriculture provide a valuable contribution to release this purpose, besides the integration of remotely sensed data with measures retrieved by meteorological stations allows the development of models able to estimate the act…

FERTILITY DECLINE IN AN ANTRHROPOGENIC SOIL Subjected since many years to intensive viticulture.

2004

Enzyme contribution of non-Saccharomyces yeasts to wine production

2015

The fermentation of grape must to produce wine is a biologically complex process, carried on by yeasts and malolactic bacteria. The yeasts present in spontaneous fermentation may be divided into two groups, the Saccharomyces yeasts, particularly S. cerevisiae, and the non-Saccharomyces yeasts which include members of the genera Rhodotorula, Pichia, Candida, Debaryomyces, Metschtnikowia, Hansenula and Hanseniaspora. S. cerevisiae yeasts are able to convert sugar into ethanol and CO2 via fermentation. They have been used for thousands of years by mankind for the production of fermented beverages and foods, including wine. Their enzymes provide interesting wine organoleptic characteristics. β-…

Principal Parameters of Grape Ripening and Wine Fermentation

2008

Using the ARP-03 for high-resolution mapping of calcic horizons

2013

A b s t r a c t. The aim of this work is to present a fast and cheap method for high-resolution mapping of calcic horizons in vineyards based on geoelectrical proximal sensing. The study area, 45 ha located in southern Sicily (Italy), was characterized by an old, partially dismantled marine terrace and soils with a calcic horizon at different depths. The geoelectrical investigation consisted of a survey of the soil electrical resistivity recorded with the Automatic Resistivity Profiling-03 sensor. The electrical resistivity values at three pseudo-depths, 0-50, 0-100 and 0-170 cm, were spatialized by means of ordinary kriging. A principal component analysis of the three electrical resistivit…

Identification of Acremonium isolates from grapevines and evaluation of their antagonism towards Plasmopara viticola

2015

Some endophytic fungal genera in Vitis vinifera, including Acremonium, have been reported as antagonists of Plasmopara viticola. Endophytic Acremonium isolates from an asymptomatic grapevine cultivar Inzolia from Italy were identified by morphological features and multigene phylogenies of ITS, 18S and 28S genes, and their intra-specific genomic diversity was analyzed by RAPD analysis. Culture filtrates (CFs) obtained from Acremonium isolates were tested in vitro for their inhibitory activity against the P. viticola sporangia germination. Among 94 isolates, 68 belonged to the Acremonium persicinum and 26 to the Acremonium sclerotigenum. RAPD analysis grouped the A. persicinum isolates into 1…

RVVS 2013

2013

Non-supersymmetric black-hole solutions in N=2,D=4 supergravity

2013

254 páginas. Tesis Doctoral del Departamento de Física Teórica, de la Universidad de Valencia.

In the literature: March 2016

2016

The way clones resistant to anti-EGFR (Epidermal Growth Factor Receptor) inhibition evolve in non-small cell lung cancer is far from being determined. In an international cooperative effort led by investigators at Johns Hopkins Hospital in Baltimore, the origin of acquired resistance mediated by the EGFRT790M mutation has been further elucidated. That mutation, recognised as gatekeeper and present in about 60% of pretreated cases with anti-EGFRs, could occur either from the selection of previously existing EGFR790M cell clones or by the evolution of originally EGFR790M-negative drug-tolerant cells. In a series of elegant experiments, the authors show that these drug-tolerant cells have a di…