Strukturni pokazatelji grozda i bobice klonova sorte Burgundac crni i njihov uticaj na hemijske karakteristike vina

Research were carried out in the vineyard of Experimental field “Radmilovac” at Faculty of Agriculture in Belgrade and included 3 Pinot Noir clones: R4, 115 and 667. For the purpose of research the structural indicators of grape and berries by are selected ten vines of each clone. Wine of the clones was prepared by procedure microvinification. Of all the tested clones, clone R4 had the best relationship structure of the bunch (bunch stem - 3.91%, and berries - 96.09%) and the highest concentration of total phenolic compounds. A strong correlation between the skin in the berries and the total phenolic compounds in all wine was founded.Istraživanja su obavljena na OD “Radmilovac” Poljoprivrednog fakulteta Univerziteta u Beogradu i obuhvatila su tri klona sorte Burgundac crni: R4, 115 i 667. Za ispitivanja strukturnih pokazatelja grozda i bobice odabrano je po 10 čokota svakog klona. Vino od klonova je spravljeno postupkom mikrovinifikacije. Od svih ispitivanih klonova, klon R4 je imao najpovoljniji odnos strukture grozda (ogrozdina - 3,91%; bobice - 96,09%), kao i najveću koncentraciju ukupnih fenolnih jedinjenja u vinu. Kod ispitivanih klonova je utvrđena jaka korelaciona zavisnost između udela pokožice u bobici i količine ukupnih fenolnih jedinjenja u vinu

YIELD AND QUALITY OF MÜLLER-THURGAU CLONE GM11 OF NIS GRAPE GROWING REGION

This paper presents the results of research variety Müller-Thurgau, clone 11 Gm, in order to determine quality indicators and the possibility of expansion in the vineyards of Southern Serbia. In terms of Nis grape growing region of the test are the most important agro technological and economic characteristics of the clone 11 Gm compared to the standard variety Müller-Thurgau. The test clone exhibited significant differences in yield and quality of grapes

THE CHARACTERISTICS OF FRUITFULNESS OF SOME INTERSPECIES GRAPEVINE CULTIVARS

The results of important agro-biological and technological characteristics of three grapevine interspecies cultivars (Medina, Gecej Zamatos, and Kristala) are presented in this study. The following parameters were monitored: the total number of developed shoots, the number of fertile shoots, the number of bunch per vine, grape yield, fertility coefficient, the average bunch weight, yield per hectare, bunch and berry structural indicators and grape quality expressed through the content of sugar in must. Statistically significant differences were determined between the examined varieties regarding following characteristics: the number and yield of bunches per vine, structural indicators of berries and sugar content in must. The analysis of the obtained results related with the analyzed grape varieties in the agro-ecological conditions of Northern Bosnia showed that those varieties can successfully be cultivated in similar or identical agro-ecological conditions

QUALITY AND ANTIOXIDANT PROPERTIES OF PINOT NOIR GRAPEVINE VARIETY UNDER AGROECOLOGICAL CONDITIONS OF VRŠAC IN SERBIA

This research was focused on the antioxidant properties of grape variety Pinot Noir in the period from 2009-2011 in Vojvodina (location Vršac - 45o 8' 40,80" N; 21º 24' 7,97" E, 199 m a. s. l.). Pinot Noir variety was grown on Berlandieri x Riparia Kober 5BB rootstock, at a distance of 3 x 0.8 m. Mechanical properties of bunch and berry, quality and chemical properties of grapes were analyzed. The contents of monomeric and polymeric anthocyanins in grape berry skin were 11.68 and 94.67 mg of malvidin-3-glucoside/g. Correlative relationship between phenolic content and antioxidant activity of berry skin was r = 0.754, n = 18, p <0.0005. Quality and antioxidant activity of Pinot Noir grape variety was determined to be high under the agroecological conditions of Vršac in Serbia

Mehanizovani postupci pripreme i obrade komposta od rezidbenih ostataka voćarsko-vinogradarske proizvodnje

This paper is part of research about the effects of mechanized process of fragmentation of pruning residues on the composting process. Compost, as a form of organic fertilizer, requires specific production treatment depending on the form of biomass. Pruning residues from fruit-vine production can be translated into quality organic fertilizer, but it is necessary to coordinate mechanized treatment of biomass and technology of composting process with microbiological processes for organic matter decomposition.Rad predstavlja deo istraživanja uticaja mehanizovanih procesa usitnjavanja rezidbenih ostataka na proces kompostiranja. Kompost kao vid organskog đubriva zahteva specifičan tretman proizvodnje u zavisnosti od vida biomase. Rezidbeni ostaci iz voćarsko-vinogradarske proizvodnje se mogu prevesti u kvalitetno organsko đubrivo, ali je potrebno uskladiti mehanizovane procese obrade biomase i tehnologiju kompostiranja sa mikrobiološkim procesima razlaganja organske materije

SOME IMPORTANT AGROBIOLOGICAL AND TECHNOLOGICAL CHARACTERISTICS OF PROMISING GRAPEVINE GENOTYPES OBTAINED FOR RED WINE PRODUCTION

This paper describes some important properties of five new grapevine genotypes (8533, 7912, 15212, 13283 and 14558) created for red wine production. Yield, mechanical properties of bunch and berry, and quality properties of grapes were analyzed. Genotype 7912 had a high yield (2.75 kg vine-1). The high contents of anthocyanins in grape berry skin were found in the genotypes 8533, 13283 and 15212 (10.65; 10.36; 10.07 mg/sample). Quality of grape of examined genotypes were determined to be high under the agroecological conditions of Belgrade grape growing region in Serbia. Genotype 13283 appeared to be the most promising for yield and grape quality. All the investigated genotypes have been proposed to the Committee on new varieties in Serbia

INFLUENCE OF CULTIVAR CHARACTERISTICS OF MUSCAT TABLE GRAPEVINE CULTIVARS (VITIS VINIFERA L.) ON GRAPE BRANDY COMPOSITION AND QUALITY

The goal of this paper has been to examine influence of a cultivar on the quality of a grape brandy produced from the muscat table cultivars: Demir kapija, Early muscat, Radmilovacki muskat, Banatski muskat, Muscat Hamburg, Smederevski muskat, Italy and Afuz-ali. In terms of the content of methyl alcohol as well as of the total evaporable ingredients, grape brandies made of the fermented grape mash of investigated cultivars meet the prescribed standards stipulated by the Rulebook on the Quality of Alcoholic Beverages

Effect of bud loads on mechanical composition of cluster and chemical content of must in Victoria table grape variety (Vitis Vinifera L.)

The two-year experiment (2008 and 2009) on new introduced table grape variety Victoria was carried out in the commercial vineyard in the conditions of Nerezi vine district, Capljina Municipality. This study the influence of different bud load levels was investigate on grape quality of cv. Victoria under given environmental conditions. The experiment was conducted by random selection method in four variants with different bud load levels per grapevine (19, 24, 28 and 33 buds per grapevine), each variant being repeated four times with 6 vines repeating. Variant II(24 buds per grapevine) had, in two-year experiment, the average value of the largest cluster weight (599.78 g), the cluster berry weight (573.25 g), and the mass of the cluster stems (12.5 g). The average content of sugar in the grape must was slightly higher in variants I and II (14 %) compared to other variants, while the highest average content of total acids had variant III (4,06 g/l)