Abstract
Research in this paper was performed at two different locations: Radmilovac and Vrsac in Serbia. Four new interspecific hybrids (9846, 9896, 19574 and 20506) which are intended for table consumption were used as a material. Grape yield per unit area, the properties of the bunch (bunch weight, bunch length, bunch width and number of berries in bunch), the properties of berry (berry weight, berry length and berry width), as well as the characteristic of grape quality (sugar content and total acids in the must) were studied in selected hybrids.The highest yield per unit area in the localities Radmilovac and Vrsac had a hybrid 9896 (14 998 kg/ha; 11 365 kg/ha). Analysis of variance results showed for the bunch weight, bunch width and number of berries in bunch, berry weight and berry length significant differences among the genotypes. Significant differences between investigated localities were determined for the bunch length and all the berry characters. The interaction between genotype and localities showed significant differences for bunch length, berry length and berry width. Since the genotypes in the initial yielding (third year after planting), they are showed satisfactory results in relation to the objectives of selection.
Highlights
Grapevine (Vitis vinifera L.) is of great economic importance in worldwide [15]
On the basis of the total number of vines per unit area and the average yield of grape per vine, it was found that the highest yield per hectare had the hybrid 9896 (14998 kg) at Radmilovac, and the smallest hybrid 9846 (9099 kg) at Vrsac (Fig. 5)
In Serbia, [12] examining the production and technological properties of some promising grapevine seedlings at Radmilovac found that the greatest differences between genotypes were determined in the yield
Summary
Grapevine (Vitis vinifera L.) is of great economic importance in worldwide [15]. It is a very divergent species from the genetic standpoint. Since its distribution range is very wide, and its cultivation history very long, over time, a rich genetic diversity has arisen within the species. The differences arising from genetic modifications due to adaptations to various environmental conditions or crossings (spontaneous or anthropogenic) have resulted in the emergence of numerous cultivars [4]. Cultivars are differ from each other according to the morphological and physiological characteristics as well as economic and technological properties. The approximate number of different cultivars and germplasm collections held is 10,000 [14]
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