Agrobiological, economical, and technological characteristics of the Ribier table grape variety depending on the different vine loads with fertile buds

2024-12-30T13:37:45+01:00

The study of the impact of different vine loads on the agrobiological, economical, and technological characteristics of the Ribier variety was carried out in 2020 and 2021 with the aim of determining the optimal load for this variety. The tests were carried out in the experimental vineyard of the Biotechnical Faculty in Podgorica. Four different vine loads with fertile buds were applied, namely 8, 12, 16, and 18 buds. The results of this study have shown that the applied loads had a significant impact on the examined parameters of the Ribier variety. The results obtained on the average yield of grapes have shown that the lowest value of this parameter was found in the variant with a load of 8 buds - 4.2 kg/vine, while the highest grape yield was recorded for the variant with a load of 18 buds (7.0 kg/vine). V1 had the highest average cluster weight (396 g), while V4 had the lowest cluster weight (325 g). The content of sugar in grape juice also varied significantly under the influence of the load on the vines. The highest sugar content was recorded in the variant with a load of 8 buds - 16.1%, and the lowest in the variant with 18 buds - 14.7%. The acid content did not differ significantly between the tested varieties.

Variability of the thousand-seed weight in bread wheat (Triticum aestivum L.)

2024-12-30T13:41:56+01:00

The thousand-seed weight (TSW) is one of the traits which is related to yield and milling quality of wheat. The aim of this work was to study the variability of the thousand-seed weight of bread wheat varieties grown under different environmental conditions. Fifty wheat varieties in a field experiment designed as a randomized block system were used for this study in three replications on the field in Kraljevo, Serbia during two vegetation seasons (2015-2017). The seeds were sown at 0.10 m distance in 1.0 m long rows spaced apart 0.2 m. Sixty plants at the full maturity stage (20 plants replication-1) were harvested and used for analyzing the thousand-seed weight. The analysis of variance was performed by MSTAT C (5.0 version). Similarities among wheat varieties were analyzed by using the hierarchical method of the Euclidean distance. The results have shown significant differences in the thousand-seed weight among varieties in both years. On average, in the first vegetation season the lowest thousand-seed weight (39.14 g) was recorded in the Lepenica variety, while the highest thousand-seed weight (54.66 g) was recorded in the Zadruga variety. In the second vegetation season, the thousand-seed weight varied from the lowest in NS Rana 2 (34.57 g) to the highest in Šumadinka (50.33 g). The similarity was illustrated on a dendogram containing four clusters in the first year and six clusters of varieties in the second year. The prominent cluster contained different numbers and compositions of varieties with the highest degree of similarity. The differences in average of the thousand-seed weight were determined by the genetic, environmental factor and by genotype/environment interaction.

AGRO - KNOWLEDGE JOURNAL

Agrobiological, economical, and technological characteristics of the Ribier table grape variety depending on the different vine loads with fertile buds

Variability of the thousand-seed weight in bread wheat (Triticum aestivum L.)