Standard Cultivars Research Articles

Bingöl Koşullarında Yurtdışı Kaynaklı Yonca Çeşitlerinin (Medicago sativaL.) Bazı Verim Özelliklerinin Belirlenmesi

This study was carried out to determine the some yield features of foreign origin alfalfa cultivars in Bingölecological conditions.In the research, a total of 15 alfalfa cultivars,12 of them are from foreign-origin(Iside, Osjecka 99, Ezzelina, Diane, Prosementi, Queen, Emiliana, Rivierea Vicentina, Banat vs, La Torre, Sabrina and Escorial) and 3 of them are standard (Elci, Bilensoy 80 and Basbag) cultivars were used as plant material. In the research; plant height, number of stems, stem thickness, green forage yieldand dry matter yieldwere investigated. Average plant height was97.6 cm, number of stems was 15.8, stem thickness was2.80 mm, forage yield was 11018 kgda-1and dry matter yield was 3228 kgda-1. In line with these parameters examined, it has concluded that Ezzelina and Emiliana cultivars showed superior characteristics in Bingöl province.

Determining Some Quality Properties of Oat Genotypes Collected from the Middle and West Black Sea Region

Healthy foodstuffs, including functional foods, are the key component of a healthy and prosperous life. Oat grains are rich in protein, soluble dietary fiber, β-glucan, starch, oil, some vitamins and minerals, and thus accepted as a healthy foodstuff. This study was conducted to determine physical and chemical quality traits of many different oat landraces/cultivars. In this study, 251 local oat genotypes, collected from 10 provinces of Western and Middle Black Sea Regions of Turkey and four standard oat cultivars were grown over the experimental fields of the Agricultural Application and Research Center at Samsun Ondokuz Mayıs University for two years in an augmented experimental design. As a result of the research, the screenings percentage >2 mm ranged from 69.81 to 95.80%, thousand grain weight from 18.55 to 38.41 g, protein content from 8.82 to 14.81%, starch content from 33.15 to 51.32, β-glucan content from 2.44 to 3.93%, acid detergent fibre value from 18.1 to 18.95%, and neutral detergent fibre value from 27.83 to 36.66%. Also, the local oat genotypes exhibited significant variations in fat content (3.70–7.91%), linoleic acid content (31.89–38.37%), oleic acid content (35.03–44.77%), palmitic acid content (18.26–22.87%), and stearic acid content (1.50–1.96%). According to the biplot, it was determined that the investigated quality traits differed according to the genotypes collected from the provinces. Also, these results can be used for selection of precious pure lines and improvement of new varieties for oat breeding programs.

Comparative transcriptome study of the elongating internode in elephant grass (Cenchrus purpureus) seedlings in response to exogenous gibberellin applications

Bioenergy grass provides an important biomass resource for biofuel production worldwide. The internode elongation of grass stems is central to biomass production for biofuels; however, this process is poorly understood in elephant grass because it is a complex trait regulated by many genes. In this study, we adopted phenotypic, histological, transcriptomic, and phytohormone methods to investigate the regulatory mechanisms of internode elongation mediated by gibberellin (GA) in a dwarf cultivar and a standard cultivar. Phenotypic analysis revealed that exogenous GA3 increased plant height by inducing both internode length and internode number in two cultivars with contrasting internode lengths. Histological analysis revealed that the GA3 application increased the internode elongation through inducing both cell division and cell elongation. Phytohormone analysis indicated that exogenous GA3 treatment significantly increased endogenous indole-3-acetic acid (IAA), and zeatin (ZR) contents but decreased abscisic acid (ABA) contents, while the expression levels of genes related to hormone metabolism and signaling were substantially changed. Consistent with the expression pattern, a significant increase in lignin and cellulose content were also observed after GA3 treatment. Genes and transcription factors related to hormone metabolism and signaling, cell division, cell wall biosynthesis, and plant growth were identified as hub genes in the core coexpression network of the response to GA3 application. This study showed that active cell division, cell elongation, and cell wall biosynthesis contribute to internode elongation following exogenous GA3 applications and identified hub genes for these complex regulatory networks. These data elucidate mechanisms governing internode elongation in elephant grass and help breeders to develop elite cultivars with high biomass.

Functional Characterization of MdTAC1a Gene Related to Branch Angle in Apple (Malus x domestica Borkh.).

The Tiller Angle Control 1 (TAC1) gene belongs to the IGT family, which mainly controls plant branch angle, thereby affecting plant form. Two members of MdTAC1 are identified in apple; the regulation of apple branch angle by MdTAC1 is still unclear. In this study, a subcellular localization analysis detected MdTAC1a in the nucleus and cell membrane, but MdTAC1b was detected in the cell membrane. Transgenic tobacco by overexpression of MdTAC1a or MdTAC1b showed enlarged leaf angles, the upregulation of several genes, such as GA 2-oxidase (GA2ox), and a sensitive response to light and gravity. According to a qRT-PCR analysis, MdTAC1a and MdTAC1b were strongly expressed in shoot tips and vegetative buds of weeping cultivars but were weakly expressed in columnar cultivars. In the MdTAC1a promoter, there were losses of 2 bp in spur cultivars and 6 bp in weeping cultivar compared with standard and columnar cultivars. An InDel marker specific to the MdTAC1a promoter was developed to distinguish apple cultivars and F1 progeny. We identified a protein, MdSRC2, that interacts with MdTAC1a, whose encoding gene which was highly expressed in trees with large branch angles. Our results indicate that differences in the MdTAC1a promoter are major contributors to branch-angle variation in apple, and the MdTAC1a interacts with MdSRC2 to affect this trait.

Evaluation of the breeding material of melon for resistance to powdery mildew and anthracnose

Melon, as a melon crop, is cultivated in many countries of the world, and is highly valued for its dietary and nutritional qualities. Melon's susceptibility to fungal diseases drastically reduces the yield and taste of the melon. In the zone of the Volgograd Trans-Volga region, melon is mainly affected by anthracnose and powdery mildew. Obtaining samples with complex resistance to these diseases solves the problem of production and product quality. Complex resistance was determined by artificial infection of melon plants, as well as in natural conditions. 4 hybrid combinations of melons were studied against the background of the standard cultivar Osen. As a result of the research, a hybrid combination of melon Dune × Ponap (Japan) F1 was isolated, which showed complex resistance both under artificial infection and in natural conditions.

Quantitative Trait Loci for Resistance to Potato Dry Rot Caused by Fusarium sambucinum

Tuber dry rot is an important disease of potato caused by soil and seed-borne pathogens of the Fusarium genus leading to losses that may reach 60% of the yield. The goal of this work was to study the inheritance of the dry rot resistance in two diploid potato hybrid populations (11–36 and 12–3) with complex pedigrees, including several wild Solanum spp. We used an aggressive isolate of F. sambucinum for phenotyping both progenies, parents, and standard potato cultivars in laboratory tuber tests, in three subsequent years. The QTL for dry rot resistance were mapped by interval mapping on existing genetic maps of both mapping populations. The most important and reproducible QTL for this trait was mapped on chromosome I and additional year- and population-specific QTL were mapped on chromosomes II, VII, IX, XI, and XII, confirming polygenic control of this resistance. This is the first study mapping the loci affecting tuber dry rot resistance in potato genome that can contribute to better understanding of potato-F. sambucinum interaction and to more efficient breeding of resistant potato cultivars.

Salt stress responses and SNP-based phylogenetic analysis of Thai rice cultivars.

Genetic diversity is important for developing salt-tolerant rice (Oryza sativa L.) cultivars. Certain Thai rice accessions display salt tolerance at the adult or reproductive stage, but their response to salinity at the seedling stage is unknown. In this study, a total of 10 rice cultivars/line, including eight Thai cultivars and standard salt-tolerant cultivar and susceptible line, were screened using a hydroponic system to identify salt-tolerant genotypes at the seedling stage. Different morphophysiological indicators were used to classify tolerant and susceptible genotypes. Phylogenetic analyses were performed to determine the evolutionary relationships between the cultivars. Results showed that 'Lai Mahk', 'Jao Khao', 'Luang Pratahn', and 'Ma Gawk' exhibited salt stress tolerance comparable with the standard salt-tolerance check 'Pokkali'. Whole-exome single-nucleotide polymorphism (SNP)-based phylogenetic analysis showed that the Thai rice cultivars were monophyletic and distantly related to Pokkali and IR29. Lai Mahk and Luang Pratahn were found closely related when using the whole-exome SNPs for the analysis. This is also the case for the analysis of SNPs from 164 salt-tolerance genes and transcription regulatory genes. The tolerant cultivars shared the same haplotype for 16 genes. Overall, the findings of this study identified four salt-stress-tolerant Thai rice cultivars, which could be used in rice breeding programs for salinity tolerance.

Seed priming and soil application of zinc decrease grain cadmium accumulation in standard and zinc-biofortified wheat cultivars

Context Cadmium (Cd) is a toxic metal for both plants and humans. Wheat grown on Cd-contaminated soils may accumulate toxic levels of Cd in grains. Aim This study aimed to compare soil zinc (Zn) application and seed Zn-priming for decreasing grain Cd concentration in standard and Zn-biofortified wheat cultivars grown on Cd-spiked soil. Methods Standard (Jauhar-2016) and Zn-biofortified (Zincol-2016) wheat cultivars were grown in pots filled with Cd-spiked soil (8 mg Cd kg−1). The tested Zn treatments were un-primed, hydro-primed, and Zn-primed seeds with and without soil Zn application at 8 mg kg−1. Key results Zinc treatments significantly mitigated the toxic effects of Cd on the growth and physiological parameters of both cultivars. As compared to control, all Zn treatments significantly increased Zn and decreased Cd concentration in grains of the cultivars. On average, the maximum increase in grain Zn concentration over control was approximately 36% with Zn-priming + soil Zn. The same treatment, as compared to control, decreased grain Cd concentration by 42% in Zincol-2016 and 35% in Jauhar-2016. Grain Cd concentration was within the permissible level (≤0.2 mg kg−1) in Jauhar-2016 at all Zn treatments and in Zincol-2016 at Zn-priming + soil Zn. Conclusion Soil Zn application, seed Zn-priming, and their combination were effective in decreasing grain Cd accumulation in wheat grown on Cd-contaminated soil. Implication Zinc treatments, especially the combination of soil Zn application and seed Zn-priming, should be recommended for wheat grown on Cd-contaminated soil.

Multidimensional scaling analysis of sensory characteristics and quantitative traits inwild apricots

The Cappadocia Region in Central Anatolia, Turkey is rich in wild apricot genetic resources. In this study, a multivariate analysis method of metric and nonmetric multidimensional scaling analysis (MDS) was used to classify 43 wild apricot genotypes and 5 standard cultivars by using Euclidean distance. MDS was applied, based on dissimilarities, to quantitative traits of weight, height, width and thickness of fruit, stone and kernel weight, flesh/stone ratio, total soluble solids content, titratable acidity and pH in fruit juice, and sensory attributes of fruit size and shape, cavity depth, suture (cheek line), fruit apex, fruit attractiveness, skin pubescence, ground and over color (blush), eating quality, aroma, firmness and juiciness of flesh, uniformity of ripening of fruit, flesh color and texture, skin cracking and pit burn susceptibility, separation of stone, stone size and shape (lateral view), stone surface and kernel taste. The results showed that most of the wild apricots (91.66%) had small sized fruits ranging from 10.5 g (type #53) to 79.3 g (type #68) with an average of 25.27 ± 2.44 g. The genotypes had fair or good eating quality and aroma, good fruit attractiveness and light bitter or sweet kernel taste in general. The harvest date showed quite a wide range between late June and early September among the genotypes. The sufficient number of dimensions was determined by stress value and pseudo-R2 statistics, then relative positions of genotypes were displayed on graphics. The Aprikoz was the most distinct cultivated apricot from the wild genotypes. Both MDS analyses revealed that most of the wild genotypes had similar fruit characteristics while genotypes of #13, #20, #39, #60, #64, #68 differed the most. The wild apricot individuals with interesting features could be used as a parent in apricot breeding programs for the development of commercial cultivars.

Promising two-row covered cultivars for increasing yield and quality of barley grain in conditions of the southern forest-steppe of Western Siberia

Agroclimatic features of the regions of barley cultivation necessitate the creation and cultivation of cultivars characterized by adaptability to local bioand abiofactors. Such cultivars are able to form a stable high-quality crop regardless of the conditions prevailing during the growing season. The developing of potentially high-yielding cultivars is a priority task of barley breeding in the West Siberian region. Two-row barley is characterized by grain equalization, reduced husk content and increased extractive content, compared to sixrow barley. The aim of the study was to characterize the new promising cultivars of barley (two-row covered group) selected in Omsk Agrarian Scientific Center. The research was conducted in the southern forest-steppe of Western Siberia in 2012-2019. 8 cultivars of coverd two-row barley selected in Omsk Agrarian Scientific Center were studied. There are new promising cultivars among them: Omskiy 100 (included in the Russian State Register in 2019) and Omskiy 101 (sent to the State Registration Service in 2018). The standard cultivar was Omskiy 95 (2007). The biochemical parameters of grain were determined: protein content, crude fat, starch, husk content. Barley selection from 2000 to 2019 focused on the developing of drought-resistant cultivars, which formed increased productivity and quality of grain in dry and arid periods of vegetation in conditions of optimal moistening. New promising cultivars - Omskiy 100 and Omskiy 101 were characterized by the formation of increased indicators of grain quality and productivity in vegetation periods that were contrasting in climatic characteristics. Due to increased yield and grain quality, cv. Omskiy100 had increased protein (+57.91 kg/ha), starch (+0.3 t/ha) and fat (+11.7 kg/ha) harvest compared to the standard. Cv. Omskiy 101 increased protein harvest by 84.9 kg/ha in comparison to the standard.

Результаты предварительного испытания по хозяйственно полезным признакам экспериментальных гибридов рапса озимого селекции ВНИИМК

The purpose of the research was a preliminary estimation of ten experimental hybrids of winter rapeseed (Brassica napus L.) bred in the V.S. Pustovoit All-Russian Research Institute of Oil Crops by the primary economically valuable traits. The research was conducted in the central zone of the Krasnodar region in 2019–2020. The results of the research are presented for the first time. On average for two years, nine of ten the best experimental hybrids increased by seeds yield by 0.32–0.76 t per ha both the standard cultivar Loris and the foreign hybrid Mercure. Middle seed yield of the studied hybrids varied significantly, variance range was from 4.99 t per ha (VN-3 × ОРK-10) to 5.62 t per ha (VN-4 × ОРK-20). Maximal values of seed and oil yields per a unit area were fixed for a hybrid combination VN-4 × ОРK-20. Except that, the hybrid is characterized with high weight of 1000 seeds (4.5 g). A hybrid combination VN-13 × ОРK-10 demonstrated high average by years seeds yield (5.33 t per ha) and oil yield (2.25 t per ha).Oil content in seeds and weight of 1000 seeds of this combination were at the level of the standard cultivar and the foreign hybrid. This hybrid shows the lowest glucosinolate content in seeds – 16.7 µmol/g, that is less that the foreign hybrid Mercure has by 2.3 µmol/g. The preliminary conclusion based on our researches is: the selected hybrids after confirmation of the competitive trial results can be of a great interest for production.

Сорт горчицы сарептской Алиса

Brown mustard is one of the valuable oil crops which allows increasing the production of edible vegetable oil. In the conditions of insufficient moisture in the Rostov region, new cultivars of brown mustard are being developed, which combine yield, early maturity with high product quality and are resistant to stress factors. A new cultivar of brwon mustard Alisa was bred by the method of individual selection from the hybrid population G-2384 (G-2319 × 50041). According to the results of competitive trials for 2017–2019, the cultivar Alisa exceeded the standard cultivar Lux by seed yield by 0.31 t per ha, seed oil content – by 0.8%. The brown mustard cultivar Alisa is characterized by a lower plant height, increased tolerance to major pathogens, and greater resistance to lodging. Plants are well uniformed in height, blooming and maturity. The cultivar was registered in 2020 in the State Register of breeding achievements approved for production. It is recommended for cultivation for grain in all regions of the Russian Federation.

POMOLOGICAL CHARACTERISTICS OF LOCAL AND INTRODUCED WALNUT CULTIVARS IN SOUTH BULGARIA

A study of local and introduced walnut cultivars was carried out at the Fruit-Growing Institute – Plovdiv in the period 2018 – 2020. Four introduced walnut cultivars – two Romanian (‘Valmit’ and ‘Valeris’) and two Turkish (‘Şebin’ and ‘Yalova 1’) – and the standard Bulgarian cultivars ‘Izvor 10’ and ‘Silistrenski’ were the object of the study. Their vegetative habits were investigated and biometric measurements of the nuts were performed. Based on the results obtained the pomological characteristics of the studied cultivars were evaluated. When grown in the conditions of South Bulgaria, the cultivars introduced from Romania – ‘Valmit’ and ‘Valeris’ and from Turkey – ‘Yalova 1’, are characterized by very large nuts. ‘Izvor 10’ and ‘Şebin’ have a high kernel ratio.

Genotype x Environment Interactions Based on Stability Parameters of Basma Type Tobacco Lines Selected for Superior Characteristics

Turkey has long been the leader in oriental tobacco (Nicotiana tabacum L.) production in the world. Standard cultivars are needed to increase the yield and quality of tobacco production. This study aimed to determine the most stable cultivar candidates by evaluating the performances of tobacco genotypes grown in different environmental conditions. Field trials were carried out in Bafra district of Samsun Province, the district with most tobacco production in Mid-Black Sea Region, and Evciler, Karayaka and Gümüşhacıköy where the Basma type oriental tobaccos are produced. The experimental design was randomized complete blocks with three replications in 2017. The study material consisted of 21 lines selected by morphological characteristics and identified by DNA fingerprinting analysis and four standard cultivars/lines. Chemical analyses were carried out using the HPLC method. The stability of genotypes was determined by regression coefficient (bi), regression constant (a), determination coefficient (r2), coefficient of variation (CV) and deviation from regression (S2d) parameters using the leaf yield, quality grade index, nicotine and sugar content values. The ERB-6, ERB-7, ERB-11, ERB-13, ERB-16, ERB-18, ERB-21 and ERB-30 lines were considered the prominent candidates based on the stability parameters and other traits investigated. Therefore, future studies should be continued using the aforementioned lines. In conclusion, much more detailed studies are needed on hopeful cultivar candidates determined as stable for production areas of the Basma type oriental tobacco.

Yield and Fruit Quality Traits of Two Banana Cultivars Grown at Two Locations in Puerto Rico under Black Leaf Streak Disease Pressure

Banana (Musa acuminata AAA) is the most exported fruit worldwide and represents a major source of revenue for Central American and South American countries as well as the Caribbean region, among others. Black leaf streak disease (BLSD) or black sigatoka, caused by Pseudocercospora fijiensis (formerly Mycosphaerella fijiensis), is responsible for significant losses to this crop due to the high susceptibility of the most economically important cultivars. BLSD does not immediately kill banana plants, but it causes severe leaf necrosis that results in reduced photosynthetic area, thereby adversely impacting bunch weight and fruit production. Without cultural and chemical control, yields can be reduced by 20% to 80%, depending on severity. This study evaluated ‘FHIA-17’, a BLSD-resistant synthetic hybrid (AAAA), against ‘Grand Nain’, a standard commercial cultivar with no BLSD tolerance, at two locations in Puerto Rico on Ultisol (Corozal site) and Oxisol (Isabela site) soils where BLSD was not managed. Significantly lower bunch yield (45,990 kg·ha−1) and significantly fewer fruit (220,671 fruit/ha) were obtained at Corozal than at Isabela (53,755 kg·ha−1; 380,241 fruit/ha). Lower production at Corozal was the result of higher severity of BLSD at this location than at Isabela and to soil factors interfering with optimum nutrient uptake. Average fruit production of ‘FHIA-17’ was significantly higher than that of ‘Grand Nain’ at both locations, with bunch yields of 68,105 and 72, 634 kg·ha−1 at Corozal and Isabela, respectively. Fruit of the third-upper hand was significantly longer for ‘FHIA-17’ at Corozal but not different at Isabela; however, ‘FHIA-17’ fruit in this hand were of significantly greater diameter. Fruit in the last hand of ‘FHIA-17’ were significantly longer than in ‘Grand Nain’ at Corozal, but of significantly greater diameter at both locations. At both locations, the mean fruit weight was significantly higher in ‘FHIA-17’ than in ‘Grand Nain’. The number of functional leaves present at flowering and at harvest was significantly higher in ‘FHIA-17’ than in ‘Grand Nain’ at both locations, indicating more availability of photosynthetic area in ‘FHIA-17’ during the fruit-filling period. The harvest cycle of ‘FHIA-17’ was significantly longer than for ‘Grand Nain’. It took 315 and 204 more days in Corozal and Isabela, respectively, to harvest three cycles (mother crop and two ratoon crops) of ‘FHIA-17’ than for ‘Grand Nain’. No significant differences were found for starch and soluble sugars in green unripe or fully mature fruit among cultivars. In this long-term study, ‘FHIA-17’ showed to have good production and resistance against BLSD and is a viable alternative to current commercial cultivars. Its relative advantage of reduced production costs by not needing fungicide applications should be weighed against its longer harvest cycle to produce a fruit bunch.

Adaptive potential of breeding lines of spring barley in conditions of Kuznetsk Depression

Adaptive properties of spring barley in the conditions of the Kuznetsk depression have been studied. The objects of the research are five medium-ripening breeding lines of spring barley. The breeding lines were studied in a nursery of competitive varietal trials in 2016-2020. The soil of the experimental plot is leached chernozem, heavy loam with a medium granulometric composition. The repetition was fourfold, the seeding rate (optimal for spring barley in the cultivation zone) 450 pcs / m2. The sowing dates were April 29 - May 5, the harvesting was done with a Sampo 130 combine at the stage of full ripeness of spring barley samples (August 12-15). The experiment was carried out in comparison with the standard cultivar Biom. The parameters of environmental plasticity (bj), stability (S2dj), the environmental conditions index (Ij) were calculated according to the method developed by S.A. Eberchart and W.A. Russel, which examines the positive response of the genotype to the improved growing conditions. Under contrasting growing conditions of spring barley in the years of research, it was found that the environment factor had a significant influence on the yield - 82.6%, the share of genotype influence was 1.4%. The average yield over the years of the study of spring barley in the nursery of competitive variety trials was 5.51 t/ha, the maximum average yield has a breeding line KM-198/11 - 6.45 t/ha. Genotypes with the highest adaptive properties were identified: KM-198/11 (bi = 0.24, Si2 = 2.59), Nutans 12/16 (bi = 0.24, Si2 = 2.18) with yield variability of 25.9-29.2% (Biom standard - 46.1%). The medium-maturing selection line of spring barley KM-198/11, having above-average adaptive properties, is prepared for submission for state variety testing in 2021 as the variety Kuzbass Jubilee. The main advantages of the variety were revealed: high drought tolerance, resistance to lodging and blight, high productivity (6.45-8.50 t/ha), large grain size (53.2 g), medium reaction to stress factors (reduced productivity). Grain crude protein content was 13.6-14.1%, the film content 8.4%, the natural weight 620 g/l.

SOME TREES AND FRUIT CHARACTERISTICS OF IMPORTANT STANDARD AND LOCAL POMEGRANATE (Punica granatum L.) CULTIVARS GROWN IN KOCAKOY (DIYARBAKIR) DISTRICT

In this study, it was aimed to determine certain tree and Fruit characteristics of important Standard and local pomegranate cultivars grown in Kocaköy (Diyarbakir) province. In this context, 2 pomegranate species (Hicaz and Zivzik), 5 local pomegranate species (Hınara Tırş, Hınara Zer, Hınara Meğoş, Hınar Şirin and Hınara Sor) and 2 local pomegranate genotypes (Hınar-1 and Hınar2) were studied. In the study, Fruit weights ranged from 129.90 -314.59 g; Fruit heights ranged from 54.78-74.28 mm; Fruit diameters ranged from 62.92-86.43 mm; Fruit Volume strange from 129.20-293.50 ml; Fruit juice amounts ranged from 34.90-90.90 ml; Fruit densities ranged from 1.0-1.23 gr/ml; 100 seed weights ranged from 24.46-37.690 g; calix heights ranged from 9.65-21.00 mm and calix diameters ranged from 16.40-27.60 mm. In addition, Soluble solid contents (SSC) ranged from 14.60-17.29% brix; total acidity ranged from 4.02-24.51%; pH ranged from 2.55-4.15 and shape indices ranged from 0.69-0.94. Moreover, sub skin color, upper skin color, seed hardness, fruit taste, seed color, upper fruit compartment, sub fruit compartment, compartment number, compartment appearance, easiness in separating arils and Fruit pulp weights of the genotypes and cultivars were also determined.

Высокопродуктивный сорт сурепицы яровой тип «000» Грация

The spring turnip rapeseed cultivar Gratsiya was developed at the Siberian experimental station – a branch of V.S. Pustovoit All-Russian Research Institute of Oil Crops by multiple individual and family selections from high-yielding, yellowseeded forms of the German cultivar Eldorado. In 2020, we isolated elite plant in the selection nursery by the main agronomic valuable traits: early maturity, high productivity, resistance to lodging, yellow seed color, low content of glucosinolates in the seeds and erucic acid in the oil. According to the results of three years competitive trials (2018–2020), 12 promising numbers with a growing season of 66–70 days were evaluated and a promising high-yielding number 31119 – the cultivar of type “000” Gratsiya was isolated. The cultivar of spring turnip rapeseed Gratsiya exceeded the standard cultivar Pobeda in seed yield by 0.21 t/ha and in oil yield by 0.08 t/ha. By the main agronomic traits, the cultivar Gratsiya differs from the standard one in lower content of glucosinolates in seeds (14.6 µmol/g) and erucic acid in oil (0.43 %). Seedlings are green, without wax coating, the plant is semi-dense, medium-branched, plant height of 120– 135 cm. The fruit is a pod, 5–7 cm long. Seeds are yellow, with an addition of brown – up to 2 %. Thousand-seed weight is 2.5–2.8 g. It is moderately drought-resistant, has uniform ripening, is suitable for mechanical harvesting, and is recommended for cultivation throughout the Russian Federation because of its early maturity.

Evaluation of genetic diversity by morphological, biochemical and molecular markers in sour cherry genotypes.

Turkey's ecological and geographical diversity allows the cultivation of most plant species that have economic importance throughout the country. One of these species, sour cherry, is among the stone fruits that are very important for human health. This study aimed to determine genetic diversity of 21 sour cherry genotypes grown from seed in Kelkit Valley and standard Kutahya cultivars. Morphological, biochemical, and molecular marker techniques [ISSR (Inter Simple Sequence Repeat)] was used to determine genetic diversity. G11 in terms of fruit characteristics, particularly weight with 4.81g, and G20 in terms of leaf width produced better results than the other genotypes with 40.10mm. Molecular marker analysis, a total of 70 bands were obtained from 12 ISSR primers and 49 of them were polymorphic. The mean polymorphism rate in the study was 70%, and the DICE's similarity coefficient of genotypes differed between 0.81 and 0.95. Polymorphism percentages of the ISSR primers varied from 20 to 100%. In biochemical analyzes, G17 with 140.18mg QE/100g in total flavonoids content, G19 with 208.63mg GAE/100g in total phenolics content, G19 with 8.33mg cyn-3-gluc/100g in total anthocyanin content compared to other genotypes prominent genotypes. The use of the obtained results in breeding studies to be carried out on this species, as well as the detection and protection of gene sources, may be beneficial for researchers.

Some Important Food Quality Traits of Autochthonous Grape Cultivars

Grapes (Vitis L.), one of the most important and old fruit crops in the world, are grown in a wide range of environments from Australia to North America and from Japan to Chile. All grape growing countries use both international and local cultivars in production to obtain fresh and dried fruits or wine. In Turkey, each region has their own local grape cultivars. Seven local cultivars and one standard grape cultivar, grown in Coruh valley, were analyzed for morphological traits (bunch size, berry color, and berry shape), biochemical characteristics (sugars, organic acids, vitamin C, phenolic compounds, total carotenoids, and flavonoids content), and % inhibition level (antioxidant capacity). The grape cultivars differed from each other in the morphological and biochemical traits. The grape berries contain predominantly nine main phenolic compounds, five organic acids, and two sugars. Among phenolic compounds, chlorogenic acid, syringic acid, rutin, and quercetin were found to be dominant for most of the cultivars between 2.365–5.112 mg/L, 0.923–2.147 mg/L, 0.856–1.711 mg/L, and 0.621–1.347 mg/L, respectively. The local cultivar Kirmizi Istanbul had more chlorogenic acid than the other cultivars. The berries with darker skin color, specifically Kara Turfanda and Nanebur, had higher % inhibition level (antioxidant capacity) than the brighter ones, which correspond also to the results of flavonoid contents. Overall, the local genotypes were found promising due to favorable properties and could be recommended for farmers and consumers.