The creation of salt-tolerant wheat genotypes can provide a basis for sustainable wheat production in areas that are particularly sensitive to the impacts of climate change on soil salinity. This study aimed to select salt-tolerant wheat genotypes that could serve as a genetic resource in breeding for salinity tolerance. A two-year experiment was established with 27 wheat genotypes, grown in salinity stress and non-stress conditions. Agronomic parameters (plant height, spike weight, number of grains per spike, thousand grain weight, and grain yield/plant) were analyzed in the phenophase of full maturity, while biochemical parameters (DPPH radical scavenging activity and total phenolic content) were tested in four phenophases. Grain yield/plant was the most sensitive parameter to salinity, with a 31.5% reduction in value. Selection based on salt tolerance indices (STI, MP, and GMP) favored the selection of the genotypes Renesansa, Harmonija, Orašanka, Bankut 1205, KG-58, and Jugoslavija. Based on YI (1.30) and stability analysis, the genotype Harmonija stands out as the most desirable genotype for cultivation in saline conditions. The presence of positive correlations between grain yield/plant and biochemical parameters, in all phenophases, enables the selection of genotypes with high antioxidant activity and high yield potential, even in the early stages of plant development.

In order to evaluate the antioxidant activity of wheat in salinity stress conditions, an experiment with 27 wheatgenotypes grown on two types of soil was conducted: solonetz (increased salinity) and chernozem (control),during two vegetation seasons (2015/2016 and 2016/2017). Analysis of DPPH radical scavenging activity andphenolic content (PC) were performed in different phenophases of wheat (tillering, stem elongation andheading). Genotypes showed significantly higher DPPH radical scavenging activity (9.82 mg trolox equivalents(TE) per mg of dry matter (d.m.)) and PC (8.15 mg gallic acid equivalents (GAE) per mg d.m.) under salinitystress conditions compared to values obtained on control (8.52 mg TE mg-1 d.m. and 7.13 mg GAE mg-1 d.m.,respectively). All analyzed factors (genotype, soil type and year) had the highly significant influence onphenotypic variation of grain yield. Salinity stress reduced grain yield by 30%, whereas drought stress in2016/2017 vegetation season reduced grain yield by 20%. Highly significant and positive correlations arepresent between grain yield and parameters of antioxidant activity in all growth stages of wheat and both soilconditions. Therefore, it could be possible to select salinity tolerant genotypes in early growth stages. DPPHscavenging activity and total phenolic content are in highly significant and positive correlation in all growthstages, which indicates that antioxidant activity is highly derived by phenolics.

This study aimed to determine the variability properties of four major types of Amaranthus species in protein and amino acids content in leaves and flowers. Obtained results by ion exchange chromatography in our study have shown high values for the content of essential amino acids lysine and methionine. In the leaf, the lysine content ranged from 3.9 (A. caudatus) to 7.0 (A. cruentus; A. moleros), and in the flowers from 4.2 (A. caudatus) to 6.7 (A. molleros). The methionine content ranged from 3.1 (A. caudatus) to 7.4 (A. mantegazzianus) in the leaf and in the flower from 2.9 (A. caudatus) to 6.7 (A. mantegazzianus). Besides lysine and methionine, significant values of other essential amino acids were recorded, respectively. Significant concentrations of total proteins were recorded in all examined genotypes. The heritability of the studied characters as protein and mineral content of seeds and leaves, and oil contents of seed were significantly high. The maximum values of the protein content of seeds were 16.55% (A. cruentus), in leaves 20.10% (A. caudatus), and the minerals in seeds 2.73% (A. moleros), and leaves 18.76% (A. mantegazzianus). The oil content of seeds was 6.16% (A. moleros). The oil content of the seed’s proportion of genetic variance to total phenotypic variance was 72%, and it has a significant impact on ecological factors. Tested divergent Amaranthus genotypes may serve as parents for further crossing. Amaranth seeds is gluten-free and is important in the diet of celiac patients and contains amino acids, especially lysine, which acts against the herpes virus. Amaranth from amaranth leaves biologically active substance that prevents heart muscle damage during ischemic processes. Amaranth seed oil has hypolipemic, anti-atherosclerotic, hypotensive and antioxidant activity.

Creating wheat genotypes characterized by high grain yield, high protein content, and favorable amino acid composition is the main goal of breeders, especially in developing countries where wheat is a staple food. An experiment with 20 wheat genotypes, released through breeding activities in the Serbian region at different periods and adapted to its pedoclimatic conditions, was conducted with the aim of determining the genetic potential of the analyzed genotypes for grain yield and quality. Due to the divergence of the examined wheat germplasm, the factor of genotype had the largest share in the variation of all yield parameters (>66%). The genotypes Zadruga and Agrounija exhibited superior abilities for overall grain yield. Also, genotype Zadruga stood out in a distinct cluster group due to high values of both thousand grain weight and grain yield per plant. A continuous improvement in protein content was found, with newer genotypes having 17.13% higher protein content compared with older genotypes. Genotype Sloga stood out with the highest protein content (13.93%). On the other hand, the old genotype Balkan was distinguished by the highest content of nonessential amino acids (61.5 g 100 g⁻¹ protein), which makes it a good genetic resource. Genotypes Agrounija (32.62 g 100 g⁻¹ protein) and Tanjugovka (32.47 g 100 g⁻¹ protein) had the highest content of essential amino acids. The highest AAS value was established for tryptophan (1.81) and the lowest for lysine (0.61). Genotypes Tanjugovka and Zadruga had the highest AAS, i.e., protein completeness. The genotypes Zadruga, Tanjugovka, Agrounija, and Sloga have demonstrated high-yield capacity and possess a favorable amino acid profile, making them promising candidates for enhancing the nutritional quality of wheat and potentially benefiting human health.

Arslanovic-Lukac S., N. Duric, V. Zecevic, Jasmina Balijagic, D. Postic (2021). The effect of year and genotype on productivity and quality of potato. - Genetika, Vol 53, No.1, 305322. The study presents results of a three-year experiment of variability of different potato varieties in Montenegro: early maturity varieties (Riviera), medium early (Almera, Aladin and Bounty) and medium late (Agria, Margarita, Kennebec and Desiree). The research was conducted during 2015, 2016 and 2017, in acid, brown soil and three different climatic locations: Nedakusi (556 m a.s.l.), Sutivan (680 m a.s.l.) and Orahovica (900 m a.s.l.). Field experiments were set up using standard methodology in random block design in three repetitions. The analysis of variance suggest that number of tubers per plant, mean tuber weight, yield of small tubers, marketable and total yields were significantly fluctuating depending on genotype (G), year (Y) and the location (L). In addition to individual influences of different factors, their interactions were also pronounced (G x Y, G x L, Y x L, G x Y x L). In the three-year period average, the highest total yield was recorded in Nedakusi (31.41 t ha-1), followed by Sutivan (21.35 t ha-1), while the lowest average yield (17.36 t ha-1) was recorded in Orahovica. As expected, on the three-year average, the highest percentage of dry matter was found in late varieties Agria - 25.46%, then Desiree - 25.33%, followed by Kennebec with 25.13%, while the lowest percentage of dry matter was found in medium early variety Almera - 20.82%. The highest average yield of tubers in the three-year period was recorded in the Aladin variety, followed by Agria and Desiree, while the lowest average yield was recorded in the variety Riviera. Obtained results show that the highest yields over observed locations were recorded in

Various statistical methods were applied in this research: analysis of genetic parameters, Pearson's correlation, genotypic and phenotypic correlations, and Path analysis, with the aim of creating a selection criterion for increasing wheat grain yield. A two-year experimental study was conducted with twenty-seven wheat genotypes, grown on two localities: Rimski Šančevi (Bačka, Vojvodina), on Chernozem soil type; and Kumane (Banat, Vojvodina), on Solonjec soil type. The highest values of phenotypic coefficient of variation (CVp) had the grain weight per plant (17.44% on Chernozem and 13.81% on Solonetz), while the lowest value of CVp had the thousand grain weight (8.12% on Chernozem and 5.47% on Solonetz). On Chernozem, the value of the genotypic coefficient of variation (CVg) ranged from 1.51%, in the number of grains per spike, to 9.17% in the spike length, while on Solonetz, grain weight per plant had the lowest value of CVg (0.36%) and plant height the highest one (11.15%). At both localities, grain yield was in highly significant and positive correlations with all analyzed traits, except with plant height and spike length. In favorable environmental conditions (Chernozem), Path analysis revealed that grain yield directly depends on grain weight per spike (0.317**), number of grains per spike (0.232**) and spike weight (0.209**), and other analyzed traits have a positive indirect effect on grain yield over mentioned traits. Under salinity stress conditions, the grain weight per plant had the highest direct effect on grain yield (0.891**), which makes this trait a good selection criterion in breeding for salinity stress tolerance.