Journal articles on the topic 'Grenache (Wine)'

<p style="text-align: justify;"><strong>Aims</strong>: The objective of this study was to investigate the effects of timing of leaf removal on yield components, berry sensory characteristics, composition and sensory properties of Vitis vinifera L. Grenache wines under non-irrigated conditions.</p><p style="text-align: justify;"><strong>Methods and results</strong>: The effects of timing of defoliation (fruit set and veraison) on yield components, berry maturity, wine composition and sensory properties of head trained, non irrigated, Grenache vines grown in Rioja appellation were studied. Leaf removal did not significantly modify total leaf area per vine as well as yield components. Grenache berries from early defoliated vines achieved the highest skin and technological maturity. Wine parameters, such as alcohol content, pH, titratable acidity, tartaric acid and total polyphenol index were unaffected by defoliation. Conversely, early leaf removal carried out at fruit set, significantly reduced the malic acid content of the wine and enhanced its colour intensity. Aroma complexity, mouthfeel, tannin quality and persistence were found to be significantly higher in the wine corresponding to the early leaf removal treatment. This was also the most preferred wine in terms of overall value.</p><p style="text-align: justify;"><strong>Conclusion</strong>: This article shows that timing of leaf removal had a marked effect on berry maturity, wine composition and sensory properties of Grenache wines made from grapes grown under dry-farmed conditions.</p><p style="text-align: justify;"><strong>Significance and impact of study</strong>: The results suggest that the timing of defoliation induces significant changes in Grenache wine composition and its sensory attributes. Late leaf removal was much less effective than early leaf removal in affecting final wine composition and quality. Grenache wine from the early defoliation treatment was rated the most preferred as of global value.</p>

To endure the challenge of climate change, the Australian wine industry could adopt new wine grape varieties more tolerant of these pending conditions. The aims of this study were to (i) generate sensory profiles and (ii) gain knowledge about Australian wine consumers’ liking of Australian and international wines made from selected drought-resistant, red wine grape varieties not traditionally grown in Australia but better suited for a changing Australian climate. A Rate-All-That-Apply (RATA) sensory panel (n = 43) profiled 24 commercial red wines made from 9 purportedly drought-tolerant red grape varieties, plus a single example of an Australian Cabernet-Sauvignon, Grenache and Shiraz wine. A subset of 10 wines was subjected to preference trials with Australian red wine consumers (n = 113) and underwent basic chemical composition measures. Consumers liked all 10 wines, scoring them greater than 5.7 on a 9-point Likert scale. The Fine Wine Instrument (FWI) identified 3 consumer segments (Wine Enthusiasts (WE); Aspirants (ASP) and No Frills (NF)). WE liked the 2 Touriga Nacional and Nero d’Avola wines significantly more than the NF consumers and the Graciano significantly more than the ASP. Correlation tests determined that the WE segment liked wines with aromas of vanilla, sweet taste, jammy, confectionary, vanilla and woody flavours and a non-fruit after taste, and the attributes responsible for the ASP segment's liking of the wines were red colour, jammy and toasty/smoky aromas, jammy and savoury flavours and alcohol mouthfeel and non-fruity aftertaste. NF consumers liked wines with aromas of vanilla, confectionary, jammy and red fruit flavours; smooth mouthfeel and a fruity aftertaste, but disliked wines displaying aromas of cooked vegetables and savoury, bitter taste, flavours of cooked vegetables, forest floor, green pepper and herbaceous, and rough mouthfeel. WE liked wines reminiscent of Cabernet-Sauvignon, Grenache and Shiraz while the ASP and NF consumers had preferences leaning towards wines similar in style to a Shiraz and Grenache, respectively. These findings indicate to wine producers the potential of these new wines in the current Australian market and the possibility that increasing future cultivation of these varieties as a response to climate change might lead to a more sustainable wine industry in the future.

<p style="text-align: justify;"><strong>Aims</strong>: To determine the anthocyanin composition in Carignan and Grenache grapes and wines as affected by vintage, plant vigor and bunch uniformity.</p><p style="text-align: justify;"><strong>Methods and results</strong>: Anthocyanin composition of Carignan and Grenache grapes and wines were analysed by chromatographic techniques considering the influence of two different vigor levels over two vintages. The heterogeneity in the distal parts of the bunch was also taken into account. Warm vintage was better for the accumulation of anthocyanins. However, each variety responsed differently according to vine vigor. Grenache anthocyanin synthesis decreased in low vigor (weak) vines, whereas Carignan anthocyanin content depended on vigor, berry size, rootstock and vintage. In both varieties, but more significantly in Carignan, there was a tendency to accumulate acylated anthocyanins in bottom berries.</p><p style="text-align: justify;"><strong>Conclusion</strong>: Carignan anthocyanin concentration was increased in low vigor plants, where clusters received greater sun exposure, unlike Grenache, where better canopy management in the fruit zone is necessary. Avoiding the poor growing conditions for Grenache in the region and improving the canopy/fruit ratio deserves careful consideration in order to reach optimal anthocyanin content.</p><p style="text-align: justify;"><strong>Significance and impact of the study</strong>: Knowledge of anthocyanin accumulation according to both plant vigor and bunch ripeness is of major importance to determine the optimal harvest date for each cultivar and thus improve the quality of wine.</p>

<p style="text-align: justify;"><strong>Aims</strong>: The aim of this study was to demonstrate the impact of the volatile compounds, arising from glycosidic precursors contained in the berries of Vitis vinifera L.cv Syrah and Grenache noir varieties, on wine aromas from these varieties.</p><p style="text-align: justify;"><strong>Methods and results</strong>: The sensory analysis was used to compare Grenache noir and Syrah wines. The role played by the glycosidic precursors on the future odorant profile of the wines from both varieties was demonstrated in an experiment by increasing their natural content in glycosides. Then, odorant compounds were generated by aging treatments, heating at 45 °C for 3 weeks, preceded or not by enzyme addition, or natural aging for 18 months. The wines were then submitted to a selected and trained panel. Samples were compared using triangular test. Furthermore, a quantitative descriptive analysis was carried out to determine the aroma attributes describing and discriminating the wines from the two varieties.</p><p style="text-align: justify;"><strong>Conclusion</strong>: The glycoconjugates increased the global aromatic complexity, and enhanced the fruity aromas in Grenache wines and the leather or olive aromas in Syrah wines. The use of glycosidase enzymes led to a stewed fruit character in Grenache wines, whereas in Syrah wines, the samples enriched with glycosides differed according to the « terroir ».</p><p style="text-align: justify;"><strong>Significance and impact of study</strong>: This study showed the impact of the glycosidic fraction of the grapes on the varietal aroma of wines. Furthermore, comparisons of the results obtained by both aging techniques highlight the experimental interest of the aging model but also its limits.</p>

<p style="text-align: justify;">Wine contains natural plant phenolic antioxidants that may protect circulating lipoproteins from oxidative damage. By inhibition of the copper-catalyzed oxidation of LDL we determined the activity of thirteen Rhône coast wines exclusively from Syrah and Grenache varieties. About 50 p. cent of the wines were made with a long maceration process. Major monomeric phenolic compounds and procyanidin dimers were analyzed in each sample by HPLC and correlated with relative LDL antioxidant activity. Correlations obtained can be grouped in 3 classes: catechin (r = 0.75), procyanidins, BI, B2, B3 (r = 0.43-0.55), malvidin-3-glucoside and cyanidin (r = 0.43), gallic acid, myreeitin, rutin (r = 0.2-0.4). On the same basis total phenol contents of wines gave a correlation with LDL antioxidant activity of r = 0.72. Comparison, at the same total phenol concentration, with different red California wines shows that antioxidant activity of French Syrah and Grenache range between that of Merlot (56-65 p. cent) and Cabernet Sauvignon (37-45 p.cent). In contrast Syrah wines made with a short extraction process gave lower inhibition of LDL oxidation of 16 p. cent which is less than white Califomia wines averaging 36 p. cent. Activity of each wine phenolic compound can play a role in protecting LDL against oxidation.</p>

The present study aimed to investigate the oenological changes induced by non-Saccharomyces yeasts in three red grape varieties from the Rioja Qualified Designation of Origin. Pilot plants fermentation of three different varieties, were conducted following early inoculations with Metschnikowia pulcherrima and with mixed inoculum of Lachancea thermotolerans-Torulaspora delbrueckii from La Rioja and compared to a wine inoculated with Saccharomyces cerevisiae. The microbiological and physicochemical characteristics of vinifications were analysed. Results showed that most of the variations due to inoculation strategies were observed in Tempranillo just after the alcoholic fermentation, probably because of the better adaptation of the inocula to the must’s oenological properties. Finally, after the malolactic fermentation the inoculation with the mix of Lachancea thermotolerans and Torulaspora delbrueckii caused more changes in Tempranillo and Grenache wines while the early inoculation with Metschnikowia pulcherrima had more effects on Grenache wines. Therefore, the study was aimed to identify the fermentation effects of each inoculation strategy by using different non-Saccharomyces yeasts and different grape varieties.

<p style="text-align: justify;"><strong>Aims</strong>: Grenache noir and Syrah are the predominant grape varieties in the French Rhone valley vineyard. This study aimed at identifying the odorants generated from glycoconjugates extracted from wines made with Grenache noir and Syrah.</p><p style="text-align: justify;"><strong>Methods and results</strong>: Synthetic model wines enriched with glycoconjugates, treated or not with enzymes, were stored at 45 °C for 3 weeks, or at 13 °C for 18 months. Aromas generated were extracted and analyzed by GC-Olfactometry (only samples from accelerated aging) and were further quantitatively determined by GC-MS. Analysis of the extracts allowed to identify 49 odorants, including 27 that could be aglycons, or related compounds, of glycoconjugates from the grapes. In addition, the active compounds were quantified in similar experiments led in conditions of natural aging for 18 months.</p><p style="text-align: justify;"><strong>Conclusion</strong>: The two varieties, Grenache noir and Syrah, were distinguishable by 14 odorant zones. Multivariate analyses (PCA) performed with the amounts of aroma compounds formed during both model and natural aging confirmed the effect of the glycosidase treatment on the acceleration of the aroma compounds formation and on the increase of the varietal differences of the wines.</p><p style="text-align: justify;"><strong>Significance and impact of study</strong>: GC-Olfactometry coupled with GCMS were good techniques to indentify and apreciate the odorants generated from glycoconjugates in the wines of Syrah and Grenache Noir, but in the context of a blend of odors, these techniques showed their limits and did not permit to determine the real impact of a molecule in the global aroma of the wine perceived by the taster. Other methods as additive techniques should be used to complete this study.</p>

The impact of optical berry sorting was investigated using Grenache, Barbera, and Cabernet Sauvignon grapes from Yolo County, California in 2016. Optical sorting parameters were adjusted to remove underripe berries and material other than grapes using color parameters. Wines were made from three treatments, control (no sorting), sort (accepted material), and reject (material rejected by the optical sorter). The rate of rejection was approximately 14.9%, 3.9%, and 1.5% (w/w) for Grenache, Barbera, and Cabernet Sauvignon, respectively. Chemical composition in the finished wines was analyzed by the Adams-Harbertson assay and reversed-phase high-performance liquid chromatography for phenolics, and head-space solid-phase microextraction gas chromatography mass spectrometry for aroma profiling. In general, optical sorting was successful in removing underripe berries and material other than grapes as evidenced by lower ethanol levels and higher concentrations of total phenolics and tannin (due to the inclusion of material other than grapes) in wine made from rejected material. Despite this, no difference in final ethanol content and minimal differences in phenolic composition were observed between control and sort treatment wines for the three varieties studied. Differences were observed in the aroma profiles of the reject treatments for all three varieties compared to sort and control; however, few compounds differed significantly between the sort and control treatments. Descriptive sensory analysis revealed that panelists had difficulty distinguishing aroma, taste, mouthfeel, and color parameters among wines made from different treatments for all three varieties. Thus, optical sorting had minimal impact on wine sensory properties using the varieties and vineyards studied. Optical sorting may be used to differentiate and sort for different ripeness levels using color as a primary criterion; however, the impact on the resulting wine is likely dependent on the initial variability in grape ripeness.

AbstractA substantial oenological literature exists on opinions of experts and neophytes as they relate to opinions about the quality of wines (Ashenfelter and Quandt, 1998; Cicchetti, 2004; Lindley, 2006). These opinions can be contrasted with factual binary questions about wine: Is it oaked? Does it contain sulfites? Is it filtered? Is the grape varietal Cabernet Sauvignon or Cabernet Franc? Syrah or Grenache? Pinot Noir or Gamay? Such factual binary issues are examined within the broader context of the various measures of factual judgment: Overall Accuracy (OA), Sensitivity (Se), Specificity (Sp), Predicted Positive Accuracy (PPA), and Predicted Negative Accuracy (PNA). The resulting biostatistical methodology derives from biobehavioral diagnostic research investigations. The purpose of this report is to apply this methodology to the discipline of oenology to compare wine judgments with wine facts. Using hypothetical examples, wine judges’ classifications of wines as oaked or unoaked were analyzed for their degree of accuracy. The results show that OA is a poor measure of the accuracy of binary judgments relative to Se, Sp, PPA, or PNA. The biostatistics of the problem could have wide-ranging applications in the design of future oenological research investigations, and in scientific research more broadly. (JEL Classifications: C1, L15, Q13)

The evolution of polyphenolic compounds and sensory properties of wines obtained from Grenache grapes, either untreated or treated with pulsed electric fields (PEF), in the course of bottle aging, as well as during oak aging followed by bottle aging, were compared. Immediately prior to aging in bottles or in barrels, enological parameters that depend on phenolic extraction during skin maceration were higher when grapes had been treated with PEF. In terms of color intensity, phenolic families, and individual phenols, the wine obtained with grapes treated by PEF followed an evolution similar to untreated control wine in the course of aging. Sensory analysis revealed that the application of a PEF treatment resulted in wines that are sensorially different: panelists preferred wines obtained from grapes treated with PEF. Physicochemical and sensory analyses showed that grapes treated with PEF are suitable for obtaining wines that require aging in bottles or in oak barrels.

<p>This work studied how different grape maturity levels and cluster treatments affect the color and phenolic composition of Grenache wines. Specifically, five treatments were undertaken at a microvinification scale for three maturity levels : Control (destemmed and crushed grapes), Whole Berry, Whole Cluster, Crushed Cluster and Submerged Cap. The first three treatments were also reproduced with large-scale wine fermentation in oak barrels but only with well-ripened grapes. The results indicated that the total polyphenol index (TPI), anthocyanin and proanthocyanidin concentrations, as well as the mean degree of polymerization were higher in all the treatments when the grapes were riper. Submerged Cap generated maximum color and polyphenolic extraction at the three maturity levels. Whole Berry wines were the most similar to the controls. The presence of stems (Crushed Cluster and Whole Cluster treatments) produced wines with a significantly higher pH at all maturity levels and with lower color intensity when the grapes were less ripe. The presence of stems also significantly increased the TPI in almost all cases.</p>

Grapevine cultivar (Vitis vinifera) and isolate of Eutypa lata influence wood and foliar symptoms of Eutypa dieback. Foliar symptoms of Eutypa dieback developed within 8 months of inoculating young grapevines (cvs. Grenache, Cabernet Sauvignon, and Merlot) in a shadehouse. Isolates of E. lata from various wine regions in southern Australia varied in their ability to colonize inoculated grapevines and induce wood and foliar symptoms. Grapevine cultivars varied for wood and foliar symptom expression but not for mycelial colonization. However, the severity of foliar symptoms was not related to the rate of spread of the fungus in the grapevine. Furthermore, the staining of wood typically attributed to E. lata did not reflect the presence of the fungus because the fungus was detected up to 80 mm beyond the stain. A field trial with mature grapevines revealed significant differences in the rate of spread of wood staining due to E. lata among eight cultivars, with up to 50 mm/year detected in Cabernet Sauvignon and Shiraz grapevines. In the shadehouse, the maximum growth rate of E. lata was recorded to be 115 mm/year for Grenache rootlings. Information from this study may help to optimize management strategies for maintaining productivity of grapevines with Eutypa dieback, thus reducing the economic impact of the disease.

Abstract Climate projections have revealed the perspective of changing the climate of the world's wine regions in the coming decades by diversifying heliothermal resources. Research in the Cotnari winegrowing region over the past decade has shown that the local climate has been affected by such developments especially after 1980. This research continues the series of studies on the climate of the Cotnari winegrowing region through projections of the climatic conditions for the 2020-2100 time period based on the RCP 4.5 scenario. Average annual temperature, warmest month temperature, precipitation during the growing season, length of the growing season and the Huglin, IAOe and AvGST bioclimatic indices for the 2020-2050, 2051-2080 and 2081-2100 time periods indicate the evolution of Cotnari area climate towards suitability for red wines and loss of suitability for the white wines. Climatic suitability classes for wine production, shift between 2020-2100 to the higher, cooler zone of the winegrowing region, narrowing down their surface and disappearing successively at the maximum altitude of 315 m asl. They are further replaced from the lower zone by classes specific to warmer climates. The suitability for white wines, specific to wine region, disappears at the maximum altitude of 315 m asl around 2060, being replaced by climate suitability for the red wine production. The average temperature of the growing season will exceed 19.5°C after 2080, becoming unsuitable for the production of red quality wines of Cabernet Sauvingnon variety. After 2050, in the lower zone of the winegrowing region the warm IH5 class, suitable for Mediterranean varieties such as Carignan and Grenache will install, as compared to temperate IH3 class which characterizes today the lower zone and allows the production of white wines of the local Feteasca albă, Grasa de Cotnari, Frâncușa and Tămâioasa românească varieties. The results suggest the need to develop strategies for adapting the viticulture of the Cotnari area to climate change.

Monomeric and dimeric flavanol glycosides were quantified by UHPLC-MRM in Syrah (SYR) and Grenache (GRE) grapes and in their corresponding wines for the first time. Quantities were extremely variable depending on grape tissue (seeds or skins) and during fermentation. Overall, 22 monomeric and dimeric mono- and diglycosides were determined with concentrations ranging from 0.7 nanograms to 0.700 micrograms per gram of grape tissue, and 0 to 60 micrograms per liter for wines. The evolution of the glycosides’ composition during winemaking suggests that almost all these compounds originate in the grapes themselves and display different extraction kinetics during winemaking. One isomer of the monomeric (epi) flavanol monoglycosides seemed to be biosynthesized by yeasts during wine fermentation. The sharp decrease in concentration of some isomers at the late stages of fermentation or after pressing suggests that some grape glycosidase activities convert these compounds into non-glycosylated flavanols.

<p style="text-align: justify;"><strong>Aim</strong>: To know the effect of the addition of a commercial glutathioneenriched Inactive Dry Yeast (G-IDY) oenological preparation on the <strong>phenolic profile and colour parameters of rosé Grenache wines.</strong></p><p style="text-align: justify;"><strong>Methods and results</strong>: A Control wine (Cont-W) and a wine with the GIDY preparation (G-IDY-W) were industrially manufactured. The evolution of the phenolic composition (anthocyanins and non-anthocyanins) and colour of both types of wines was evaluated during winemaking and their shelf-life (after 1, 2, 3 and 9 months of bottle aging). Results revealed that wines manufactured with the G-IDY preparation showed differences in both their phenolic composition and colour characteristics with respect to the control wines, particularly after 9 months of aging. These differences were more evident in the anthocyanin than in the non-anthocyanin compounds.</p><p style="text-align: justify;"><strong>Conclusions</strong>: The G-IDY wines showed a greater decrease of the anthocyanins from grape origin, probably due to the formation of anthocyanin-polysaccharide complexes, and a higher concentration of some anthocyanin-derived pigments. These changes can be related to the slower colour evolution determined in wines produced using G-IDY preparations.</p><p style="text-align: justify;"><strong>Significance and impact of the study</strong>: The addition of the G-IDY preparation during winemaking modifies the anthocyanin composition of the resulting wines, which seems to provoke a slower colour evolution during their shelf-life.</p>

In the present work, 38 elements were quantified in the different fractions generated by applying amateur winemaking methods. Inductively Coupled Plasma Mass Spectrometry was used as detection technique. Grapes were analyzed and separate metal profiles were also obtained for the skin and seeds. Additional vinification fractions included musts before and after the fermentation process. Meanwhile, solid fractions corresponded to the so-called hat, pressed pomace and the lees obtained after gravitational settling at the tank bottom. Wine was further analyzed. The obtained results revealed a different repartition depending on the particular element and winemaking solid and liquid fraction evaluated. The studies included vinification in presence and in absence of added yeast and grape geographical origin. Principal component analysis helped to discriminate among fractions and to determine the critical elements behaving differently. Finally, a mass balance allowed to unequivocally detect the migration of a given element to the winemaking fractions.

<p style="text-align: justify;">In order for the characterization of terroir in vineyard situations to benefit both viticultural and wine making practices, it is necessary to consider the spatial aspect of the vineyard environment. An exploratory approach at characterising terroir in the Nyons-Valreas Basin (figure 1) considers both the spatial analysis and frequency analysis of the harvest. Data gathered from stereoscopic aerial photographic examination, satellite image processing, land surveys, and the Digital Elevation Model are combined and structured within a Geographic Information System along with the existing soil and geological data (figure 2). The result is a comprehensive soils model applicable to a relatively large area (11,340 ha). The Nyons-Valreas Basin is a neogene and quaternary sedimentary basin, and the soils found there are described by 21 soil landscape units which integrate 15 variables (table I). The area examined is considered to be representative of the surrounding regional diversity. The variables used in characterising terroir include soil types, geomorphology, lithology, stratigraphy, vegetation, land form, and land use. The various viticultural terroirs are regarded as parts of agricultural land consistent with both soil landscapes and harvest/wine responses. Multivariate clustering of the soil landscape units indicates that there exists 7 distinct viticultural terroirs, essentially on the basis of geomorphology and soils (figures 3 and 4, table II). Four distinct terroirs were compared (figures 5 and 6) using data gathered from 14 sites over the course of 15 vintages (1982-1996). Grenache is the grape variety planted at each site, and the variables measured at harvest (pH, sugar content, titratable acidity, the weight of 200 berries, and the sugar/acidity ratio) appear to significantly discriminate the sites examined according to the terroir modeling performed (tables III, IV and V).</p>

<p style="text-align: justify;"><strong>Aims</strong>: The aim of this paper is to study the anthocyanin profile of the monovarietal young red wines from the Appellation of Origin Navarra. Differentiation of wines according to age and grape variety (Tempranillo, Grenache and Cabernet-Sauvignon) was procured using the multivariate statistical methods.</p><p style="text-align: justify;"><strong>Methods and results</strong>: The anthocyanin composition of wines was analysed by HPLC's technology. Then, the data were analysed statistically. In this way, principal component analysis and stepwise discriminant analysis classified correctly samples belonging to the same category. The anthocyanin 3-monoglucosides appeared as key factor in the differentiation of wines according to age. Largest relative concentrations in these anthocyanins were found in the youngest wines. In addition, a separation of wines according to variety is obtained in terms of their relative contents on the anthocyanin acetate derivatives.</p><p style="text-align: justify;"><strong>Conclusion</strong>: A minimum number of anthocyanin compounds made classification of wines according to both age and grape variety possible in this work. Cabernet-Sauvignon is the variety that appeared to differ most from the rest, because it is the one that presents the major levels of the MvAc anthocyanin. The malvidin 3-monoglucoside was variable the highest discriminant power according to age. Using this variable exclusively, 80 % of correct classification was achieved.</p><p style="text-align: justify;"><strong>Significance and impact of study</strong>:The importance of the anthocyanin compounds on the global quality of the young wine (1 or 2 years-old), has driven us to realize this work. It is important to know the evolution that these compounds suffer throughout the years in order to apply new technologies as for example the microoxygenation.</p>

The combination of QTL mapping studies of synthetic lines and association mapping studies of natural diversity represents an opportunity to throw light on the genetically based variation of quantitative traits. With the positional information provided through quantitative trait locus (QTL) mapping, which often leads to wide intervals encompassing numerous genes, it is now feasible to directly target candidate genes that are likely to be responsible for the observed variation in completely sequenced genomes and to test their effects through association genetics. This approach was performed in grape, a newly sequenced genome, to decipher the genetic architecture of anthocyanin content. Grapes may be either white or colored, ranging from the lightest pink to the darkest purple tones according to the amount of anthocyanin accumulated in the berry skin, which is a crucial trait for both wine quality and human nutrition. Although the determinism of the white phenotype has been fully identified, the genetic bases of the quantitative variation of anthocyanin content in berry skin remain unclear. A single QTL responsible for up to 62% of the variation in the anthocyanin content was mapped on a Syrah × Grenache F1 pseudo-testcross. Among the 68 unigenes identified in the grape genome within the QTL interval, a cluster of four Myb-type genes was selected on the basis of physiological evidence (VvMybA1, VvMybA2, VvMybA3, and VvMybA4). From a core collection of natural resources (141 individuals), 32 polymorphisms revealed significant association, and extended linkage disequilibrium was observed. Using a multivariate regression method, we demonstrated that five polymorphisms in VvMybA genes except VvMybA4 (one retrotransposon, three single nucleotide polymorphisms and one 2-bp insertion/deletion) accounted for 84% of the observed variation. All these polymorphisms led to either structural changes in the MYB proteins or differences in the VvMybAs promoters. We concluded that the continuous variation in anthocyanin content in grape was explained mainly by a single gene cluster of three VvMybA genes. The use of natural diversity helped to reduce one QTL to a set of five quantitative trait nucleotides and gave a clear picture of how isogenes combined their effects to shape grape color. Such analysis also illustrates how isogenes combine their effect to shape a complex quantitative trait and enables the definition of markers directly targeted for upcoming breeding programs.

The Priorat and Montsant Appellations of Origin are considered to produce some of the finest wines in the Mediterranean area of Spain. Located in the south of Catalonia (North-East Spain), they account for close to 4000 ha cultivated by more than 1300 vine growers under severe Mediterranean climatic conditions and hence threatened by global warming. In this context, sustainable practices are needed for the optimal use of natural resources in order to ensure the durability of high-quality wine production in the region. In addition, these practices allow this region to maintain high levels of biodiversity, a major characteristic of Priorat and Montsant's agricultural landscape, which represents an important touristic attraction. The Project LIFE Priorant+Montsant, funded by the European Union, proposed the implementation of sustainable practices at a regional scale, in order to achieve remarkable reductions of resource consumption in three axes: 1) Irrigation water management, 2) vine fertilization and 3) synthetic pesticide use. Reductions are achieved by providing the necessary technical support to growers to adopt practices, developing optimized strategies and evaluating the viticulture and winery production processes. After the two first seasons of the project, 2017 and 2018, the objectives of reduction of resources consumption have been successfully achieved. A total of 53 vineyard plots, representing the main grape varieties in the region (Grenache, Carignan, Cabernet Sauvignon and Syrah) were classified in eight sub-areas and monitored for water consumption. From pea-size to harvest (phenological stages), weekly measurements of phenology, water potential and meteorological data were collected. Irrigation recommendations were then given to growers, to avoid water potential below − 1.4 MPa. Overall, more than 50 irrigation recommendations were emitted to growers. The water consumption with the optimized irrigation strategy ranged from 10 to 63 litres per ha, the recommended dose saved 20 to 87% of the irrigation water per year, according to previous general recommendations in this region. Regarding fertilization, soil samples were provided by growers and leave samples were taken from vineyards to assess nutrient levels and develop the corresponding recommendation of fertilization, depending on the analysis results. The analyzed soil samples from the different sub-areas were grouped by the Principal Component Analysis, in which the first and second principal components accounted for 31.6% and 11.8% of the variability and were related to soil texture and nutrient content of soils, respectively. Overall, the recommended doses of organic fertilizers saved more than 20% of the usual chemical fertilizer application in the region. The reduction of pesticide use will be achieved through three actions related to three main pests and diseases of grapevine: optimized formulations against powdery mildew, alternative products to reduce copper use against downy mildew and, increase of surface under mating disruption strategy against grape berry moth Lobesia botrana. Before implementing these actions, no vineyards were managed under mating disruption in the Montsant area and 207 ha have been monitored in 2018 after two years. In the Priorat area, more than 200 ha have also adopted this strategy during the project. This action has saved more than 500 application doses of synthetic insecticides in those vineyards. Within the same scope, several formulations will be proved in the following years in order to assess their effectiveness against powdery and downy mildew in further specific field trials. Candidate products will be introduced in Integrated Pest Management strategies to achieve the desired pesticide reduction levels. The results will represent specific regional strategies for irrigation, fertilization and plant protection, and are extensible to most of the vineyards in Priorat and Montsant, as well as to other vitivinicultural regions which similar conditions. Keywords: Sustainable management, Irrigation, Fertilisation, Pesticides, Priorat-Montsant.

Based on the concepts of homotopy, a novel Grenade Explosion Algorithm, called a homotopy-inspired Grenade Explosion Algorithm (HGEA),is proposed to deal with the problem of global optimization. Proceeding from dependent variables of optimized function,it traces a path from the solution of an easy problem to the solution of the given problem by use of a homotopy--|a continuous transformation from the easy problem to the given one.This novel strategy enables the Grenade Explosion Algorithm (GEA) to improve the search efficiency. Theoretical analysis proves that HGEA converges to the global optimum. Experimenting with a wide range of benchmark functions, we show that the proposed new version of GEA, with the continuous transformation, performs better, or at least comparably, to classic GEA.

<p style="text-align: justify;"><strong>Aims</strong>: Genetic variability in grapevine cultivars may influence their strategy to cope with drought through stomatal regulation of transpiration rate. The aim of the present study was to evaluate the stomatal sensitivity of five cultivars (Ekigaïna, Grenache, Marselan, Mourvèdre, and Syrah) to soil water status and air water vapor pressure deficit (VPD).</p><p style="text-align: justify;"><strong>Methods and results</strong>: Leaf gas exchange and canopy light interception efficiency (ε_i) were evaluated through a wide range of predawn leaf water potential (Ψ_PD) measurements in a field experiment in Southern France. Additionally, greenhouse experiments were carried out to monitor stomatal response to increasing VPD levels. Ekigaïna showed a strong isohydric behavior with the highest decrease in leaf gas exchange in response to soil water stress and VPD. Mourvèdre and Grenache showed a similar but relatively less extreme behavior. These three cultivars showed a constant leaf water status during the day through stomatal regulation and a strong decrease in ε_i. In contrast, Syrah and Marselan displayed anisohydric behavior as they presented a less sensitive stomatal control. Both cultivars showed fluctuating midday leaf water potential and Marselan was the least affected in terms of ε_i.</p><p style="text-align: justify;"><strong>Conclusion</strong>: This study demonstrated that grape cultivars differed in their stomatal response to soil water deficit and VPD. For a given cultivar, a similar stomatal behavior was found in response to both Ψ_PD and VPD.</p><p style="text-align: justify;"><strong>Significance and impact of the results</strong>: Adaptation to drought and viticulture viability in hot and dry environments could be achieved by identifying and breeding cultivars with drought tolerance traits.</p>

<p style="text-align: justify;">Several series of wines were prepared in standard conditions from well defined varieties (Cabernet-Sauvignon, Carignan, Chasselas, Chardonay, Grenache Noir, Riesling, Sauvignon, Syrah et Ugni Blanc) harvested in 1991 in three different regions of production in France (Alsace, Bordeaux and Languedoc). In order to study the influence of the year of production as well, the same varieties grown in Anjou were considered for three different periods of time : 1983, 1984 and 1988. The stable isotope composition of these wines was determined by 2H-NMR spectroscopy ((D/H)_I and (D/H)_II isotope ratios of ethanol) and by Mass Spectrometry for water (²H and ¹⁸O) and ethanol (¹³C). The variations observed for the wines of the different varieties are explained in terms of the climatic conditions (temperature, precipitation and insolation) which governed the regions of production during the vine vegetation cycles considered. It is shown that similar behaviour is observed for the ²H and ¹⁸O contents of the water of musts and wines but they differ from the Craig relationship existing in meteorological waters. The early vine varieties cultivated in the different regions considered give wines with a higher concentration in the heavy isotopes than the later varieties as far as the ethanol (D/H)_I parameter is concerned.</p>

<p style="text-align: justify;">Among other elements of the natural environment, soil greatly influences vine behaviour and berry composition. Its influence is complex, because soil affects vine water and mineral uptake, as well as temperature in the root zone. In this research, investigations were undertaken to assess whether vine development and grape quality potentiel could be linked to specific soil types. 15 dry farmed plots planted with Vitis vinifera L. cv. Grenache noir were studied in 2000 on five soil types of the Southern Côtes du Rhône (France). No clear relationship could be established between soil type, vine growth, yield and berry composition. However, vine water and nitrogen status were related to soil depth. On shallow soils, vine water and nitrogen status were low, which resulted in early shoot growth cessation and moderate yield, as well as high berry sugar and anthocyanin content. Severe water stress is known for affecting negatively berry ripening. Nevertheless, although this study was carried out under dry, Mediterranean conditions, the grapes with the highest potential for making quality red wines were obtained on the soils with the lowest water holding capacity.</p>

The neural networks, which find currently use in the unusually wide range of problems, in such fields as: finance, medicine, geology or physics, were characterized in the article. It was accent, that neural networks are very sophisticated technique of modelling, able to map extremely complex functions. It was noticed particularly, that neural networks had a non-linear character, what very essentially improve the possibilities of their applications. Some previous applications of neural networks were introduced, both in the area of domestic and foreign, including also military applications. The fuse of UZRGM type (Universal Modernized Fuse of Hand Grenades) was characterized, describing his building and way of action, special attention-getting on the tested features during laboratory diagnostic tests. Necessary technical parameters for the first and the second laboratory diagnostic tests, whose purpose was to build two independent neural networks, on the basis of existing test results and undertaken post-diagnostic decisions were designed. A few artificial neural networks were made and finally the best two independent neural networks were chosen. The main parameters of the chosen active neural networks were introduced in the pictures. Concise information, relating to the built artificial neural networks, for the first and the second laboratory diagnostic tests of the fuses of UZRGM type, was presented in the end of the article. In the summary, clearly distinguished are advantages of the applications of the proposed evaluation method, which significantly shortens an evaluation process of new empirical test results and causes complex automatization of an evaluation process of the tested fuses. Keywords: artificial intelligence, neural networks, activation function, hidden neurons, fuse.

The principal objective of the work is to compare among carbon-glass filament wound epoxy matrix hybrid composites with a different fiber ratio made by robotized winding processes and optimize the geometry suitable for the Rocket Propelled Grenade Launcher. ANSYS based finite element analysis was used to predict the axial as well as radial compression behavior. Experimental samples were developed by a robot-controlled filament winding process that was incorporated with continuous resin impregnation. The experimental samples were evaluated for the corresponding compressional properties. Filament wound tubular composite structures were developed by changing the sequence of stacking of hoop layers and helical layers, and also by changing the angle of wind of the helical layers while keeping the sequence constant. The samples were developed from carbon and glass filaments with different carbon proportions (0%, 25%, 50%, 75%, and 100%) and impregnated with epoxy resin. The compressional properties of the tubular composites that were prepared by filament winding were compared with the predicted axial and radial compressional properties from computational modelling using the finite element model. A very high correlation and relatively small prediction error was obtained.

During the summer and fall of 2006, a survey was done to detect European phytoplasmas of quarantine significance in Canadian vineyards. This survey was developed as one of the 2006 import requirements for grapevine nursery stock from Europe. This addresses the increased concerns regarding inadvertent phytoplasma introductions. Grapevines imported in 2006 and established grapevines were observed for symptoms typical of those associated with diseases caused by phytoplasmas on grapevine. Samples were tested from 155 grapevines. One plant, located in the lower Okanagan Valley, British Columbia, tested positive by a modified real-time PCR assay and TaqMan probe targeting the 16S region of the ribosomal RNA gene (1), which detects a wide variety of known phytoplasmas. The sample was further analyzed and found to be positive by conventional PCR with the phytoplasma-specific primers, P1/P7 (3), and Stolbur specific primers, STOL11f2/r1 (2). Additional PCR tests with primers specific to flavescence doree (FD9f/r) (2) and western X disease (P1/W INT) (3) were negative. These phytoplasmas are also known to infect grapevine. The approximate 1,800-bp fragment obtained with P1/P7 was sequenced (GenBank Accession No. EU086529) and found to have 99.7% nucleotide sequence identity to the Stolbur STOL #11 isolate (GenBank Accession No. AF248959) originally isolated from eastern Europe. This was the highest match to any available phytoplasma sequence obtained and indicates that the phytoplasma in the British Columbian sample is an isolate of bois noir, a pest of quarantine significance to Canada. Additional phylogenetic analysis using CLUSTAL W (Lasergene; DNASTAR, Madison, WI) confirmed this result. The presence and identity of the phytoplasma was confirmed from a second tissue sample that was analyzed by PCR and sequenced using the same test procedures as for the first sample, with identical results. The bois noir phytoplasma belongs to the stolbur group (16SrVII) with the principal vector being a cixiid planthopper. Stolbur phytoplasmas cause diseases in other crops, but bois noir disease is caused by a specific member of that group and is the only stolbur phytoplasma known to infect grapevines in Europe. The infected grapevine was from a lot of 1,965 plants of Grenache clone 70 on rootstock 3309 clone 143 that was imported from Europe in 2006. All plants in this importation have been destroyed. This phytoplasma has not been detected in any other grapevines in Canada. Additional import conditions requiring hot water treatment of European vines have been implemented for 2007. Further survey work for phytoplasma in grapevine will continue. References: (1) N. M. Christensen et al. Mol. Plant-Microbe Interact. 17:1175, 2004. (2) X. D. Daire et al. Eur. J. Plant Pathol. 103:507, 1997. (3) C. D. Smart et al. Appl. Environ. Microbiol. 62:2988, 1996.

Background and aims: Wine is a beverage characterized by its pleasant aromatic features. These sensory notes are determined by the specific concentrations of odorous chemical compounds in each wine. Many of these aroma compounds arise directly or indirectly from the grapes, and their formation is affected by both grape metabolism and the viticultural ecosystem. Two studies were done with the 2015 vintage of Vitis vinifera L. cv. Grenache in Denominación Origen Somontano, a wine region of northern Aragon, Spain. In one study, we analysed wine from vineyards with different potentials: high potential, defined by balanced yield and high exposed leaf area (surface foliaire exposée, SFE, expressed in square metres) relative to production (P, expressed as kilograms of grapes) (i.e. high SFE:P ratio); and low potential, defined by unbalanced yield and low SFE:P ratio. In the other study, we analysed wine produced from grapes harvested at different times and therefore at different stages of ripening. The aim was to determine the effects of these variables on the aromatic compound profile of the wines. Methods and results: Concentrations of major aroma compounds were determined by gas chromatography (GC) with flame ionization detection, those of minor and trace aroma compounds by GC–mass spectrometry (MS), and those of pyrazines by thermal desorption–GC coupled with GC–MS. In the first study, wines from high-potential vineyards had higher concentrations of some compounds, such as esters of fermentative origin (isoamyl acetate, ethyl lactate and diethyl succinate), esters of varietal origin (ethyl dihydrocinnamate, methyl vanillate and ethyl vanillate), and terpenols (linalool and geraniol). In contrast, wines from low-potential vineyards had higher concentrations of 3-isopropyl-2-methoxypyrazine, γ-nonalactone and volatile phenols. In the second study, concentrations of varietal compounds such as rotundone and linalool increased with extended maturation. Furthermore, as ripening progressed, the ester to acid ratio for linear fatty acid ethyl esters generally increased while that for branched fatty acid ethyl esters tended to decrease. Acetaldehyde concentration was decreased in wines produced from grapes harvested at the latest date, a result that may be related to increased polyphenol content.Conclusions: The results of these studies provide an approximation of how the aromatic compound profile of a Grenache wine may differ between vineyards with different characteristics.Significance and impact of the study: We suggest explanations for these differences, which may guide the choice of harvest date.

In 2017, the grape and wine industry had an overall economic impact of $13.1 billion within the state of Texas. The majority of grapes grown in Texas are produced within the Texas High Plains American Viticultural Area (AVA). However, vineyards within the Texas High Plains AVA are subject to late spring frosts which can potentially diminish fruit quality, and reduce crop production. To assist in planning and production efforts, Texas High Plains AVA grape growers require information regarding vine secondary bud growth and fruitfulness. Therefore, the objectives of this experiment were to compare the growth and fruitfulness of shoots grown from primary and secondary buds of Vitis vinifera L. ‘Grenache’ and ‘Cabernet Sauvignon’ vines grafted to 110R rootstocks. Vines were planted in an experimental vineyard in 2008. Each year over two consecutive growing seasons (2016 – 2017) vines were exposed to the following treatments: primary bud growth intact, and following bud break allowing primary bud shoot growth to reach 15.0 cm in length then removing primary bud shoots (forcing growth from secondary buds). Gas exchange, growth, fruitfulness, and fruit total soluble solid data were collected each year. Collected data followed similar trends each growing season. Hence, data from each growing season were pooled. Gas exchange data indicate leaves from primary shoots had lower photosynthetic rates, and stomatal conductance when compared to leaves grown on secondary shoots. In addition, ‘Grenache’ leaves had greater gas exchange when compared to ‘Cabernet Sauvignon’ leaves. Pruning weights, vine yield, cluster mass, and total soluble solids were greater for shoots grown from primary buds. ‘Cabernet Sauvignon’ vines had greater pruning weights, but ‘Grenache’ vines had greater crop load (Ravaz Index) and cluster mass. Yield and total soluble solids did not differ between grape cultivars, but the number of clusters from each vine, and berry mass varied with cultivar and bud treatment. In the late spring frost-prone Texas High Plains AVA, cultivar selection continues to be a critical factor for vineyard success. Results indicate decreased yields from all vines with shoot growth only from secondary buds. However, even though ‘Grenache’ and ‘Cabernet Sauvignon’ vines responded differently to bud treatments (‘Cabernet Sauvignon’ vines generally produced a greater number of smaller clusters when compared to ‘Grenache’ vines), for each cultivar overall yield was similar across all bud treatments. Therefore, Texas High Plains AVA and other grape producers now have additional information that may assist them when making critical vineyard management choices.

The quality of wine totally depends on the variety of grape. Grapes are unique among fruits. Ripe, they contain sufficient sugar and an appropriate amount of acid so that when they ferment enough alcohol is produced to make a palatable wine that is protected against imminent spoilage. In present investigation experiment was carried during 2014 to 2016 for 3 year. Treatment performance was observed using Tukey’s mean separation method in 95% percent confidence interval. Under this experiment grape ten variety tested under different characteristics. From the result it is found that number of mature and fruitful cane maximum found in Shiraz variety 39.61 and 22.05. Total soluble Solid (TSS) and acidity is important aspect for wine preparation. Minimum TSS and acidity was found in Shiraz variety 0.62 and 18.5. Highest yield variety was recorded in Grenache. From the study, it is observed that performance of Shriraz variety is most suitable for wine preparation in Malwa plateau.

Climate change has already been affecting the regional suitability of grapevines with significant advances in phenology being observed globally in the last few decades. This has significant implications for New Zealand, where the wine industry represents a major share of the horticultural industry revenue. We modeled key crop phenological stages to better understand temporal and spatial shifts in three important regions of New Zealand (Marlborough, Hawke's Bay, Central Otago) for three dominant cultivars (Merlot, Pinot noir, and Sauvignon blanc) and one potential new and later ripening cultivar (Grenache). Simulations show an overall advance in flowering, véraison, and sugar ripeness by mid-century with more pronounced advance by the end of the century. Results show the magnitude of changes depends on the combination of greenhouse gas emission pathway, grape cultivar, and region. By mid-century, in the Marlborough region for instance, the four cultivars would flower 3 to 7 days earlier and reach sugar ripeness 7 to 15 days earlier depending on the greenhouse gas emission pathway. For growers to maintain the same timing of key phenological stages would require shifting planting of cultivars to more Southern parts of the country or implement adaptation strategies. Results also show the compression of time between flowering and véraison for all three dominant cultivars is due to a proportionally greater advance in véraison, particularly for Merlot in the Hawke's Bay and Pinot noir in Central Otago. Cross-regional analysis also raises the likelihood of the different regional cultivars ripening within a smaller window of time, complicating harvesting schedules across the country. However, considering New Zealand primarily accommodates cool climate viticulture cultivars, our results suggest that late ripening cultivars or extended ripening window in cooler regions may be advantageous in the face of climate change. These insights can inform New Zealand winegrowers with climate change adaptation options for their cultivar choices.

I. First Brexit, then Trump: Has the past year or so ushered in a “wave” (Weisberg), a “barrage” (Desmond-Harris) or a “deluge” (Sidahmed) of that notoriously noxious affect, hate? It certainly feels that way to those of us identified with progressive social and political causes—those of us troubled, not just by Trump’s recent electoral victory, but by the far-right forces to which that victory has given voice. And yet the questions still hanging over efforts to quantify emotional or affective states leaves the claim that there has been a clear spike in hate moot (Ngai 26; Massumi 136-7; Ahmed, Promise 3-8). So let’s try asking a different question. Has this same period seen a rise, across liberal media platforms, in the rhetorical work of “hate-attribution”? Here, at least, an answer seems in readier reach. For no one given to scrolling distractedly through liberal Anglophone media outlets, from The New York Times, to The Guardian, to Slate, will be unfamiliar with a species of journalism that, in reporting the appalling activities associated with what has become known as the “alt-right” (Main; Wallace-Wells; Gourarie), articulates those activities in the rubric of a calculable uptick in hate itself.Before the U.S. Presidential election, this fledgling journalistic genre was already testing its wings, its first shudderings felt everywhere from Univision anchor Jorge Ramos’s widely publicized documentary, Hate Rising (2016), which explores the rise of white supremacist movements across the South-West U.S, to an edition of Slate’s Trumpcast entitled “The Alt-Right and a Deluge of Hate,” which broached the torment-by-Twitter of left-wing journalist David French. In the wake of the election, and the appalling acts of harassment and intimidation it seemed to authorize, the genre gained further momentum—leading to the New Yorker’s “Hate Is on the Rise After Trump’s Election,” to The Guardian’s “Trump’s Election led to Barrage of Hate,” and to Vox’s “The Wave of Post-Election Hate Reportedly Sweeping the Nation, Explained.” And it still has traction today, judging not just by James King’s recent year-in-review column, “The Year in Hate: From Donald Trump to the Rise of the Alt-Right,” but by Salon’s “A Short History of Hate” which tracks the alt-right’s meteoric 2016 rise to prominence, and the New York Times’ recently launched hate-speech aggregator, “This Week in Hate.”As should already be clear from these brisk, thumbnail accounts of the texts in question, the phenomena alluded to by the titular term “hate” are not instances of hate per se, but rather instances of “hate-speech.” The word “hate,” in other words, is being deployed here not literally, to refer to an emotional state, but metonymically, as a shorthand for “hate-speech”—a by-now widely conventionalized and legally codified parlance originating with the U.N. Declaration to describe “violent or violence-inciting speech or acts that “aim or intend to inflict injury, or incite prejudice or hatred, against persons of groups” because of their ethnic, religious, sexual or social affiliation. And there is no doubt that, beyond the headlines, these articles do incredibly important work, drawing connections between, and drawing attention to, a host of harmful activities associated with the so-called “alt-right”—from a pair of mangled, pretzel-shaped swastikas graffiti-ed in a children’s playground, to acts of harassment, intimidation and violence against women, African-Americans, Latinos, Muslims, Jews, and LGBTQ people, to Trump’s own racist, xenophobic and misogynistic tweets. Yet the fact that an emotion-term like hate is being mobilized across these texts as a metonym for the “alt-right” is no oratorical curio. Rather, it perpetuates a pervasive way of thinking about the relationship between the alt-right (a political phenomenon) and hate (an emotional phenomenon) that should give pause to those of us committed to mining that vein of cultural symptomatology now consigned, across the social sciences and critical humanities, to affect theory. Specifically, these headlines inscribe, in miniature, a kind of micro-assessment, a micro-geography and micro-theory of hate. First, they suggest that, even prior to its incarnation in specific, and dangerous, forms of speech or action, hate is in and of itself anathema, a phenomenon so unquestioningly dangerous that a putative “rise” or “spike” in its net presence provides ample pretext for a news headline. Second, they propose that hate may be localized to a particular social or political group—a group subsisting, unsurprisingly, on that peculiarly contested frontier between the ideological alt-right and the American Midwest. And third, they imply that hate is so indubitably the single most significant source of the xenophobic, racist and sexist activities they go on to describe that it may be casually used as these activities’ lexical proxy. What is crystallizing here, I suggest, is what scholars of rhetoric dub a rhetorical “constellation” (Campbell and Jamieson 332)—a constellation from which hate emerges as, a) inherently problematic, b) localizable to the “alt-right,” and, c) the primary engine of the various activities and expressions we associate with them. This constellation of conventions for thinking about hate and its relationship to the activities of right-wing extremist movement has coalesced into a “genre” we might dub the genre of “hate-attribution.” Yet while it’s far from clear that the genre is an effective one in a political landscape that’s fast becoming a political battleground, it hasn’t appeared by chance. Treating “hate,” then, less as a descriptive “grid of analysis” (Sedgwick 152), than as a rhetorical projectile, this essay opens by interrogating the “hate-attribution” genre’s logic and querying its efficacy. Having done so, it approaches the concept of “alternatives” by asking: how might calling time on the genre help us think differently about both hate itself and about the forces catalyzing, and catalyzed by, Trump’s presidential campaign? II.The rhetorical power of the genre of hate-attribution, of course, isn’t too difficult to pin down. An emotion so thoroughly discredited that its assignment is now in and of itself a term of abuse (see, for example, the O.E.D’s freshly-expanded definition of the noun “hater”), hate is an emotion the Judeo-Christian tradition deems not just responsible for but practically akin to murder (John 3:1). In part as a result of this tradition, hate has proven thoroughly resistant to efforts to elevate it from the status of an expression of a subject’s pestiferous inner life to the status of a polemical response to an object in the world. Indeed, while a great deal of the critical energy amassing under the rubric of “affect theory” has recently been put into recuperating the strategic or diagnostic value of emotions long scorned as irrelevant to oppositional struggle—from irritation and envy, to depression, anger and shame (Ngai; Cvetkovich; Gould; Love)—hate has notably not been among them. In fact, those rare scholarly accounts of affect that do address “hate,” notably Ahmed’s excellent work on right-wing extremist groups in the United Kingdom, display an understandable reluctance to rehabilitate it for progressive thought (Cultural Politics). It should come as no surprise, then, that the genre of “hate-attribution” has a rare rhetorical power. In identifying “hate” as the source of a particular position, gesture or speech-act, we effectively drain said position, gesture or speech-act of political agency or representational power—reducing it from an at-least-potentially polemical action in or response to the world, to the histrionic expression of a reprehensible personhood. Yet because hate’s near-taboo status holds across the ideological and political spectrum, what is less clear is why the genre of hate-attribution has achieved such cachet in the liberal media in particular. The answer, I would argue, lies in the fact that the work of hate-attribution dovetails all too neatly with liberal political theory’s longstanding tendency to laminate its social and civic ideals to affective ideals like “love,” “sympathy,” “compassion,” and, when in a less demonstrative humor, “tolerance”. As Martha Nussbaum’s Political Emotions has recently shown, this tradition has an impressive philosophical pedigree, running from Aristotle’s philia (16), John Locke’s “toleration” and David Hume’s “sympathy” (69-75), to the twentieth century’s Universal Declaration of Human Rights, with its promotion of “tolerance and friendship among all nations, racial or religious groups.” And while the labour of what Lauren Berlant calls “liberal sentimentality” (“Poor Eliza”, 636) has never quite died away, it does seem to have found new strength with the emergence of the “intimate public sphere” (Berlant, Queen)—from its recent popular apotheosis in the Clinton campaign’s notorious “Love Trumps Hate” (a slogan in which “love,” unfortunately, came to look a lot like resigned technocratic quietism in the face of ongoing economic and environmental crisis [Zizek]), to its revival as a philosophical project among progressive scholars, many of them under the sway of the so-called “affective turn” (Nussbaum; Hardt; Sandoval; hooks). No surprise, then, that liberalism’s struggle to yoke itself to “love” should have as its eerie double a struggle to locate among its ideological and political enemies an increasingly reified “hate”. And while the examples of this project we’ve touched on so far have hailed from popular media, this set of protocols for thinking about hate and its relationship to the activities of right-wing extremist movements is not unique to media circles. It’s there in political discourse, as in ex-DNC chair Debbie Wasserman Schultz’s announcement, on MSNBC, that “Americans will unite against [Trump’s] hatred.” And it’s there, too, in academic media studies, from FLOW journal’s November 2016 call for papers inviting respondents to comment, among other things, on “the violence and hatred epitomized by Trump and his supporters,” to the SCMS conference’s invitation to members to participate in a pop-up panel entitled “Responding to Hate, Disenfranchisement and the Loss of the Commons.” Yet while the labor of hate-attribution to which many progressive forces have become attached carries an indisputable rhetorical force, it also has some profound rhetorical flaws. The very same stigma, after all, that makes “hate” such a powerful explanatory grenade to throw also makes it an incredibly tough one to land. As Ahmed’s analysis of the online rhetoric of white supremacist organizations should remind us (Cultural Politics), most groups structured around inciting and promoting violence against women and minorities identify, perversely, not as hate groups, but as movements propelled by the love of race and nation. And while left-wing pundits pronounce “hate” the signature emotion of a racist, misogynist Trump-voting right, supporters of Trump ascribe it, just as routinely, to the so-called “liberal elite,” a group whose mythical avatars—from the so-called “Social Justice Warrior” or “SJW,” to the supercilious Washington politico—are said to brand “ordinary [white, male] Americans” indiscriminately as racist, misogynistic, homophobic buffoons. Thus, for example, The Washington Post’s uncanny, far-right journalistic alter-ego, The Washington Times, dubs the SPLC a “liberal hate group”; the Wikipedia mirror-site, Conservapedia, recasts liberal objections to gun violence as “liberal hate speech” driven by an “irrational aversion to weapons”; while one blood-curdling sub-genre of reportage on Steve Bannon’s crypto-fascist soapbox, Breitbart News, is devoted to denouncing what it calls “ ‘anti-White Racism.’” It’s easy enough, of course, to defend the hate-attribution genre’s liberal incarnations while dismissing its right-wing variants as cynical, opportunistic shams, as Ahmed does (Cultural Politics)—thereby re-establishing the wellspring of hate where we are most comfortable locating it: among our political others. Yet to do so seems, in some sense, to perpetuate a familiar volley of hate-attribution. And to the extent that, as many media scholars have shown (Philips; Reed; Tett; Turow), our digital, networked political landscape is in danger of being reduced to a silo-ed discursive battleground, the ritual exchange of terminological grenades that everyone seems eager to propel across ideological lines, but that no one, understandably, seems willing to pick up, seems counter-productive to say the least.Even beyond the genre’s ultimate ineffectiveness, what should strike anyone used to reflecting on affect is how little justice it does to the ubiquity and intricacy of “hate” as an affective phenomenon. Hate is not and cannot be the exclusive property or preserve of one side of the political spectrum. One doesn’t have to stretch one’s critical faculties too far to see the extent to which the genre of hate-attribution participates in the emotional ballistics it condemns or seeks to redress. While trafficking in a relatively simple hate-paradigm (as a subjective emotional state that may be isolated to a particular person or group), the genre itself incarnates a more complex, socially dynamic model of hate in which the emotion operates through logics of projection perhaps best outlined by Freud. In the “hate-attribution” genre, that is, hate—like those equally abjected categories “sentimentality,” “worldliness” or “knowingness” broached by Sedgwick in her bravura analyses of “scapegoating attribution” (150-158)—finds its clearest expression in and through the labor of its own adscription. And it should come as no surprise that an emotion so widely devalued, where it is not openly prohibited, might also find expression in less overt form.Yet to say as much is by no means to discredit the genre. As legal scholar Jeremy Waldron has recently pointed out, there’s no particular reason why “the passions and emotions that lie behind a particular speech act” (34)—even up to and including hate—should devalue the speech acts they rouse. On the contrary, to pin the despicable and damaging activities of the so-called “alt right” on “hate” is, if anything, to do an injustice to a rich and complex emotion that can be as generative as it can be destructive. As Freud suggests in “Group Psychology and the Analysis of the Ego,” for example, hate may be the very seed of love, since the forms of “social feeling” (121) celebrated under the liberal rubric of “tolerance,” “love,” and “compassion,” are grounded in “the reversal of what was first a hostile feeling into a positively-toned tie in the nature of an identification” (121; italics mine). Indeed, Freud projects this same argument across a larger, historical canvas in Civilization and its Discontents, which contends that it is in our very struggle to combat our “aggressive instincts” that human communities have developed “methods intended to incite people into identifications and aim-inhibited relationships of love” (31). For Freud, that is, the practice of love is a function of ongoing efforts to see hate harnessed, commuted and transformed. III.What might it mean, then, to call time on this round of hate-attribution? What sort of “alternatives” might emerge when we abandon the assumption that political engagement entails a “struggle over who has the right to declare themselves as acting out of love” (Ahmed, Cultural Politics 131), and thus, by that same token, a struggle over the exact location and source of hate? One boon, I suggest, is the license it gives those of us on the progressive left to simply own our own hate. There’s little doubt that reframing the dangerous and destructive forms of speech fomented by Trump’s campaign, not as eruptions of hate, or even as “hate-speech,” but as speech we hate would be more consistent with what once seemed affect theory’s first commandment: to take our own affective temperature before launching headlong into critical analysis. After all, when Lauren Berlant (“Trump”) takes a stab at economist Paul Krugman’s cautions against “the Danger of Political Emotions” with the timely reminder that “all the messages are emotional,” the “messages” she’s pointing to aren’t just those of our political others, they’re ours; and the “emotions” she’s pointing to aren’t just the evacuated, insouciant versions of love championed by the Clinton campaign, they’re of the messier, or as Ngai might put it, “uglier” (2) variety—from shame, depression and anger, to, yes, I want to insist, hate.By way of jump-starting this program of hate-avowal, then, let me just say it: this essay was animated, in part, by a certain kind of hate. The social critic in me hates the breathtaking simplification of the complex social, economic and emotional forces animating Trump voters that seem to actuate some liberal commentary; the psychologist in me hates the self-mystification palpable in the left’s insistence on projecting and thus disowning its own (often very well justified) aggressions; and the human being in me, hating the kind of toxic speech to which Trump’s campaign has given rise, wishes to be able to openly declare that hatred. Among its other effects, hate is characterized by hypervigilance for lapses or failings in an object it deems problematic, a hypervigilance that—sometimes—animates analysis (Zeki and Romoya). In this sense, “hate” seems entitled to a comfortable place in the ranks of what Nick Salvato has recently dubbed criticism’s creative “obstructions”—phenomena that, while “routinely identified as detriments” to critical inquiry, may also “form the basis for … critical thinking” (1).Yet while one boon associated with this disclosure might be a welcome intellectual honesty, a more significant boon, I’d argue, is what getting this disclosure out of the way might leave room for. Opting out of the game of hurling “hate” back and forth across a super-charged political arena, that is, we might devote our column inches and Facebook posts to the less sensational but more productive task of systematically challenging the specious claims, and documenting the damaging effects, of a species of utterance (Butler; Matsuda; Waldron) we’ve grown used to simply descrying as pure, distilled “hate”. And we also might do something else. Relieved of the confident conviction that we can track “Trumpism” to a spontaneous outbreak of a single, localizable emotion, we might be able to offer a fuller account of the economic, social, political and affective forces that energize it. Certainly, hate plays a part here—although the process by which, as Isabelle Stengers puts it, affect “make[s] present, vivid and mattering … a worldly world” (371) demands that we scrutinize that hate as a syndrome, rather than simply moralize it as a sin, addressing its mainsprings in a moment marked by the nerve-fraying and life-fraying effects of what has become known across the social sciences and critical humanities as conditions of social and economic “precarity” (Muehlebach; Neil and Rossiter; Stewart).But perhaps hate’s not the only emotion tucked away under the hood. Here’s something affect theory knows today: affect moves not, as more traditional theorists of political emotion have it, “unambiguously and predictably from one’s cognitive processing,” but in ways that are messy, muddled and indirect (Gould 24). That form of speech is speech we hate. But it may not be “hate speech.” That crime is a crime we hate. But it may not be a “hate-crime.” One of the critical tactics we might crib from Berlant’s work in Cruel Optimism is that of decoding and decrypting, in even the most hateful acts, an instance of what Berlant, herself optimistically, calls “optimism.” For Berlant, after all, optimism is very often cruel, attaching itself, as it seems to have done in 2016, to scenes, objects and people that, while ultimately destined to “imped[e] the aim that brought [it to them] initially,” nevertheless came to seem, to a good portion of the electorate, the only available exponent of that classic good-life genre, “the change that’s gonna come” (“Trump” 1-2) at a moment when the Democratic party’s primary campaign promise was more of the free-market same. 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