1. Monitoring and genetic characterization of historical grapevine varieties (V. vinifera ssp.) from Styria in SloveniaStanko Vršič, Oliver Trapp, Erika Maul, Franco Röckel, Andrej Perko, 2024, izvirni znanstveni članek Ključne besede: V. vinifera L., historical varieties, genetic analyses, Styria, Slovenia
Objavljeno v DKUM: 05.12.2024; Ogledov: 0; Prenosov: 12
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4. Monitoring and genotyping of wild grapevine (Vitis vinifera L. subsp. sylvestris) in SloveniaAndrej Perko, Oliver Trapp, Erika Maul, Franco Röckel, Andrej Piltaver, Stanko Vršič, 2024, izvirni znanstveni članek Ključne besede: wild grapevine, SSR markers, conservation, genetic fingerprinting, Slovenia
Objavljeno v DKUM: 05.12.2024; Ogledov: 0; Prenosov: 8
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5. ‘Pinore’: The new red wine variety cross-bred between ‘Pinot Noir’ and ‘Regent’ vinesStanko Vršič, Klemen Vršič, 2021, izvirni znanstveni članek Opis: Renewed interest in varieties that are more tolerant to diseases has emerged, which is mainly due to increased awareness by producers and consumers regarding the impact of phytochemicals in the environment. This paper describes the first Slovenian grapevine variety ‘Pinore’ crossed between the Vitis vinifera L. ‘Pinot Noir’ clone Mf and ‘Regent’ vines. The aim was to create an early ripening grape cultivar that has a good tolerance to biotic stress (e.g., downy and powdery mildew, botrytis) combined with the benefits of established cultivars and their intense wine colors. Some ampelographic characteristics of young shoots, mature leaves, bunches, and berries are presented, and its major agronomic traits, ripening time, grape yield, quality performances, and disease resistance were evaluated over a three-year period (2014–2017). Wine sensory analyses were performed and compared with the international variety ‘Pinot Noir’. The examined genotype showed good agronomic performance and a high wine quality as far as the content of polyphenols is concerned, especially in terms of anthocyanins and tolerance to diseases (Ren3/9 and Rpv3.1); it is significantly different compared to the reference variety ‘Pinot Noir’. In terms of ampelographic characteristics, the main differences are in the number of leaf lobes, the depth of the lateral sinuses, and the content of anthocyanins in its flesh. The investigated genotype has been proposed to the Committee of new varieties in Slovenia for the variety recognition procedure, and completion of the procedure planned for the end of 2023.
Ključne besede: grapevine, breeding, red variety, Pinore, Slovenia
Objavljeno v DKUM: 21.10.2024; Ogledov: 0; Prenosov: 9
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6. Earthworm abundance changes depending on soil management practices in Slovenian vineyardsStanko Vršič, Marko Breznik, Borut Pulko, Jesús Rodrigo-Comino, 2021, izvirni znanstveni članek Opis: Earthworms are key indicators of soil quality and health in vineyards, but research that considers different soil management systems, especially in Slovenian viticultural areas is scarce. In this investigation, the impact of different soil management practices such as permanent green cover, the use of herbicides in row and inter-row areas, use of straw mulch, and shallow soil tillage compared to meadow control for earthworm abundance, were assessed. The biomass and abundance of earthworms (m2) and distribution in various soil layers were quantified for three years. Monitoring and a survey covering 22 May 2014 to 5 October 2016 in seven different sampling dates, along with a soil profile at the depth from 0 to 60 cm, were carried out. Our results showed that the lowest mean abundance and biomass of earthworms in all sampling periods were registered along the herbicide strip (within the rows). The highest abundance was found in the straw mulch and permanent green cover treatments (higher than in the control). On the plots where the herbicide was applied to the complete inter-row area, the abundance of the earthworm community decreased from the beginning to the end of the monitoring period. In contrast, shallow tillage showed a similar trend of declining earthworm abundance, which could indicate a deterioration of soil biodiversity conditions. We concluded that different soil management practices greatly affect the soil’s environmental conditions (temperature and humidity), especially in the upper soil layer (up to 15 cm deep), which affects the abundance of the earthworm community. Our results demonstrated that these practices need to be adapted to the climate and weather conditions, and also to human impacts.
Ključne besede: soil management practices, vineyards, earthworms, human impacts, soil depth
Objavljeno v DKUM: 21.10.2024; Ogledov: 0; Prenosov: 6
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7. Patterns of Copper Bioaccumulation and Translocation in Grapevine Grafts Depending on RootstocksStanko Vršič, Mojca Gumzej, MARIO LEŠNIK, Andrej Perko, Borut Pulko, 2023, izvirni znanstveni članek Opis: The long-term use of copper (Cu) fungicides in viticulture in Europe has led to Cu accumulation in vineyard top soils. However, less is known about the accumulation of Cu in grapevine grafts after the callusing process/before planting in the nursery. This paper presents the capacity of 5BB and SO4 rootstocks to accumulate Cu, as well as the patterns of translocation in the grafts. After heat forcing (callusing), the grapevine grafts of Sauvignon Blanc on 5BB and SO4 rootstocks were grown in pots for six months in a glasshouse and exposed to various Cu formulations (Cu-oxychloride, Cu-gluconate) and concentrations in peat (50, 150, 500, and 1000 mg Cu of dry weight (DW)). In addition to monitoring the shoot growth dynamics and analyzing the copper content in graft organs, bioaccumulation (BAFs) and translocation factors (TFs) of Cu were calculated. The mean Cu concentrations were ranked as follows: roots (15–164) > rootstock trunks (8–38) > canes (5–21) mg kg−1 DW. The Cu concentrations depended on the Cu formulation and concentration in the substrate. Higher Cu content was found in the roots of both rootstocks (5BB and SO4, 23–155 and 15–164 mg kg−1 DW, respectively) and the lowest in the canes (less than 10 mg kg−1 DW) of grafts grown in Cu-oxychloride-treated peat. Based on the BAFs and TFs, both rootstocks could be considered as Cu exclusive. A higher translocation rate was determined in systemic Cu-gluconate and SO4 rootstock. With shoot length measurements, the significant inhibitory effects of Cu on grapevine grafts growth could not be confirmed, despite the inhibitory effects that were clearly expressed in the first two months of growth. Soils containing more than 500 mg Cu/kg−1 are less suitable for growing vine grafts.
Ključne besede: grapevine grafts, copper accumulation, Cu-oxychloride, Cu-gluconate, 5BB and SO4 rootstocks
Objavljeno v DKUM: 08.12.2023; Ogledov: 457; Prenosov: 30
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8. Biometrijska procjena značaja nekih ampelotehničkih zahvata na cv. Zweigelt (Vitis vinifera L.) u vinogorju FeričanciVladimir Jukić, Mato Drenjančević, Dražen Horvat, Stanko Vršič, Mirjana Brmež, 2013, izvirni znanstveni članek Opis: U trogodišnjem pokusu ispitivani su pojedinačni i združeni učinci ampelotehničkih tretmana na količinu šećera i ukupnu kiselost u moštu kultivara Zweigelt. Istraživanja su provedena na proizvodnim površinama FeraVina d.o.o. Feričanci tijekom razdoblja 2006.-2008. godine. Pokus je postavljen po planu podijeljenih parcela (split-plot) u četiri ponavljanja. Za glavni čimbenik određeno je svojstvo «opterećenje trsa» u tri razine (24, 18 i 12 pupova po trsu), a kao podčimbenik «djelomična kasna ručna defolijacija» u dvije razine (ostavljeni i uklonjeni listovi u zoni grožđa). Količina šećera u moštu nije zavisila niti o jednome ispitivanome ampelotehničkome zahvatu, već isključivo o godini, kao najvećem i statistički visoko značajnome izvoru varijabiliteta. Učinci godine i djelomične kasne defolijacije statistički su visoko značajno (P≤0,01) utjecali na smanjenje ukupne kiselosti mošta u odnosu na tretman s ostavljenim lišćem u zoni grožđa.
Ključne besede: ampelotehnična obdelava, sorte Zweigelt, obremenitev trsa, sladkor, kislost
Objavljeno v DKUM: 20.07.2017; Ogledov: 1145; Prenosov: 106
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