Studies on the Quality of Rootstocks in the Viticultural Centre Blaj

The quality of the initial material (graft and rootstock) is determined by theagricultural techniques applied. The study conducted at RSVO Blaj aimed to identify thedegree of maturation of rootstock strings in 2011, correlated with climate factors and the stageof obtaining grafts technology that could influence carbohydrate losses. The material used(string rootstocks grafted at the base, middle, or top) was harvested fresh from plantation, andfrom the silo (silage in November 2011). Keeping the propagating material at optimumhydration avoid losses of carbohydrates by extended hydration before grafting

The Impact of Climatic Factors on the Rootstock Quality, in the Blaj Vineyard Center

Obtaining efficient yields in the wine center Blaj, as well as quality vine grafts is conditioned by a complex of technological and climatic factors. Knowing the maturation degree of the wood contained in the graft and rootstock cords (the content in carbohydrates: soluble sugars and starch) can be considered an important indicator that shows the deployment of the physiological processes taking place during the vegetation period. The quality of the rootstock is determined by the agro technical methods that were used, but the climatic factors from the active vegetation period and the resting period also have an important role

Studies on the Behavior of the Main Grape Varieties for White Wine, in SCDVV Blaj

The grape varieties studied in this paper (Fetească regală, Sauvignon blanc, italian Riesling, Muscat Ottonel, Traminer roz) are the main white wine grape varieties grown in the wine center Blaj, as well as in all the Tarnave vineyards. The objective of the studies and research we performed was to show the ampelographic, agrobiological and technological attributes of the main grape varieties grown at SCDVV Blaj and used for obtaining quality white wines. The grape varieties that were studied are main varieties from the Tarnave vineyard. They were presented in this paper, according to the unique scheme and methodology for the ampelographic description of varieties, created by the International Organisation of Vine and Wine (O.I.V) , in collaboration with the International Union for the Protection of New Varieties of Plants (U.P.O.V) and the International Board for Plant Genetic Resources (I.B.G.R.)

Influence of Thinning Grapes on Vine Block Wintering, in Five Grape Varieties for Red Wines, Cultivated in NW Romania

Five grape varieties for red wines (Pinot noir, Merlot, Cabernet Sauvignon, Syrah andBurgund mare) were tested in 2009-2010, in NW Romania (Rătești wine-growing center), under twotypes of cultural technology: thinning and without thinning grapes. The work of fruit loadstandardization through thinning grapes has been made at the beginning of veraison (third decade ofJuly in 2009 and the first decade of august in 2010). In this study, were made observations regardingtemperatures during the period 2009-2010 and the level of critical temperature during winter, in orderto establish the quantity of carbohydrates (g %) from vine shoots and bud viability (%). Theexperiment was a bifactorial series (cultivar x fruit load standardization) with five grape wine varietiesgrown and two different applied technologies: thinning and without thinning grapes. Regardless of thestandardization of fruit load, Syrah variety distinguished with high carbohydrate values of string,obtained during the two years of testing (15.94 g %) meaning good adaptability of the variety toclimatic conditions in the Rătești wine area. The other four species showed significant differencesfrom the Syrah variety, however, between them, the differences are insignificant. The two variantsanalyzed (thinning and no thinning) had a significant influence on the accumulation of reservesubstances. The string bud viability was high (over 85 %) to all five species tested

Evaluation of Environmental Quality in Vineyards Târnave and Murfatlar

The agrochemical characterization of the grape-growing soils, nutrient monitoring and identification of potential or existing hazardous substances represent another segment of the traceability structure for the quality manual in the grape-growing production. The thorough study of the critical points regarding vine fertilizing, the way it affects the grape-growing environment and the danger of transferring the hazardous substances into the soil-plant-food system is necessary, because it also outlines that using an appropriate fertilizing system can be a way to ensure the removal of negative effects upon wine products ((Dejeu, 2004; Pop, 2003; Iliescu, 1997). Soil, leaf and grape samples from the grape-growing farms situated in the two culture areas were gathered for the study. The farms applied chemical fertilisers on the vines leaves and roots. The concentrations of mineral elements in the soil and plant were dosed using plasma emission spectrometry

Researches Regarding the Agrotehnic Behaviour of Perspective Elites Obtained at Research Station for Viticulture and Enology Blaj

The Research Station for Viticulture and Enology Blaj (SCDVV Blaj), white a long tradition on improving wine grape varieties, was performed intraspecific hybridization and clonal selection in order to obtain new varieties and clones with superior qualities of provenance varieties. The hybrid elites that were tested in the yield trials of SCDVV Blaj were: 5-26 (Traminer roz x Iordană) and 11-26 (Fetească regală x Muscat Ottonel) and from the test field were selected the following clonale elites: 18-11 Pinot gris and 17-49 Fetească regală. These elites have been studied during 2012-2013 period and reported on a reference system consisting from control varieties: Traminer roz 60 Bl., Fetească regală 21 Bl., Pinot gris 34 Bl. The studied hybrid elites had good behavior with good value sugar / acidity / production ratio. Of clonal elites was remark 18-11 from qualitative point of view since has accumulated the greatest amount of sugars, with a good sugar / acidity ratio. Regarding the productivity, it is noted 17-49 clonale elite who obtained the highest yield. Because from clonale elite 18-11 Pinot gris and 5-26 hybrid elite can be obtained superior quality wines (DOC category), with a potential alcoholic over 12.5 % vol. even in less favorable climatic conditions for vine culture, these will be proposed for homologation

Quality Evaluation of Selection Oppenheim 4 Rootstock Clones Used to Produce Grapevine Planting Material, Depending on the Applied Agrotechnics

The implications of various vines practices (trellised or grown flat on the ground) influence the degree of canes maturations. In the present paper are analyzed the implications of various vines practices (using support systems-Romania, without means of support-France) on the maturation degree of canes of different clones belonging Selection Oppenheim 4 Rootstock (SO4) rootstock used in the grafting process. Have been tested rootstock clones of SO4 from France (clones 5, 18, 102, 203, 762) and Romania (clone 4).Carbohydrate content in clones studied recorded values between 13.81-16.07 g%, these values ranking rootstock clones in category sufficiently matured (between 14 to 16 g%) to good matured (over 16g %). By using the support system is obtain a good mature stock with a uniform diameter

Soil Type Influence on Yield Quantity and Quality at Grape Varieties for White Wines Obtained in the Viticultural Centre Blaj

The study was conducted in 2011-2012 at Reasearch Station for Viticulture and Enology (SCDVV)Blaj and aimed the pretability of varieties for quality white wines (Fetească regală 21 Bl, Sauvignon 9 Bl,Traminer roz 60 Bl, Muscat Ottonel 12 Bl and Neuburger 10 Bl) in pedogenesis conditions of entiantrosoland eutricambosol soil from Târnave vineyard. In terms of varieties were conducted observations andmeasurements on bud viability, fertility and productivity elements, production obtained per vine andcrop quality in terms of climatic conditions of the two years analyzed. Fertility and productivity arecorrelated with each other and directly affects the production of grapes. Thus, agro biological value wasdetermined in conditions of the varieties studied in Blaj wine center (2011 and 2012) on the two soiltypes. In terms of lithology, Târnave vineyard is characterized by the predominance of clays, marls andPanonian and Sarmatian gravels (ridges and hillsides) and the loess (Pleistocene and Holocene terraces)of the sediments formed soil formation.We determined the main agrochemical soil fertility parameters(pH, total nitrogen, phosphorus and potassium). Blaj vineyard has a long tradition, especially in thedirection of the cultivation of grapes for the production of quality white wines, while those studied inthis paper, rich assortment of varieties for white wine vineyard Târnave