New Varieties Of Wheat Research Articles

The effect of sowing dates and seed rates on field germination of new varieties of wheat

The article presents the effect of sowing dates and seed rates on the field gemination of seeds of new varieties of durum wheat Javahir, Mingchinor, Langar, Yoqut-2014 in drought conditions. The complete harvest of winter durum wheat and its wintering, storage until harvest, and ultimately, obtaining an abundant and high-quality grain harvest from the crop directly depend on the correct determination of the optimal sowing period and norms. The purpose of the study was to determine the effect of sowing dates and seed rates on the field germination of new durum wheat in the conditions of typical gray soils of the drought conditions of Kashkadarya region. In research, the highest germination of durum wheat seeds was observed when planted on October 21, that is, the fertility of seeds compared to when planted on October 1 (control) was 2.9 in accordance with Javokhir, Mingchinor, Langar, Yoqut-2014 varieties; 2.7; 3.2; increased by 3.3%. A decrease in field fertility of all durum wheat cultivars was observed with late sowing. This indicator is 5.8 in the Jawakhir variety compared to the one planted on October 21 in the first ten days of December; 6.1 in Mingchinor; 6.3 at anchor; Ruby decreased by 6.4% in 2014. In the Mingchinor variety, 2.1% delay in planting dates from October 21 and 6.6% decrease in seed germination in field conditions were found. In the article, the impact of planting dates and standards of durum wheat varieties Javahir, Mingchinor, Langar, Yoqut-2014 included in the State Register of Agricultural Crops on field germination was studied and recommendations were given based on the experimental results.

Grain quality indicators and their phenotypic variability of ancient varieties of Triticum aestivum in the mountains of Uzbekistan

Abstract. Ruziyev F, Djabbarov I, Olimjonova S, Niyozov U, Urokov S, Ishankulova D, Bakhadirov U. 2023. Grain quality indicators and their phenotypic variability of ancient varieties of Triticum aestivum in the mountains of Uzbekistan. Biodiversitas 24: 5995-6001. Today, creation of varieties of agricultural crops that are resistant to adverse environmental factors and produce stable crops under the influence of stress factors has become one of the most important issues in the world. In the following years, scientific and research work is being carried out on the wide use of the diversity of its genetic resources in the creation of new varieties of wheat (Triticum aestivum L.). In this regard, there are opportunities to use wild, semi-wild and ancient local forms of wheat with high protein and high gluten content to create varieties that meet modern production requirements. Therefore, it is important to evaluate the quality indicators of ancient varieties and the degree of phenotypic variation in the selection of wheat varieties that are resistant to adverse environmental factors, fertile and high-quality. This research work, aimed at researching ancient wheat varieties cultivated by the people living in the mountainous regions of Uzbekistan for many years. According to the research results, the grain quality indicators (grain hardness, diameter of grains, grain quality indicators, rheological properties, etc.) of the ancient wheat varieties distributed in the mountain regions are different. According to the results of the experiment, the grain hardness of the studied ancient wheat varieties is 73-82 µm, grain diameter 2.65-2.71 mm, hectolitre of weight 818.2-838.1±8.7 g/L, vitreousness 62.2-70.3%, gluten content in grain 31.5-34.6%, sedimentation index 64.4-77.2 mL. It was also observed that the phenotypic variability of the quality indicators was different in the wheat varieties that were the object of the study. Differences in the grain quality indicators of ancient wheat varieties are explained by the different effects of climatic parameters, abiotic and biotic factors in the regions where wheat grows. The information presented in the article provides an opportunity to select ancient wheat varieties distributed in the mountainous regions of Uzbekistan as starting sources for the creation of varieties with high nutritional value, resistant to adverse factors.

Dumitru Seceleanu – Pioneer of the Modernization of Romanian Agriculture

Dumitru Seceleanu comes from an old Transylvanian Romanian family from Săcele, Brașov county, the locality that also gave him his last name. He studied in Brașov, then, in 1877, he was a volunteer in the 6th Călărași Buzău Squadron. After the army, he got married and had six children, whom he unfortunately lost. Dumitru Seceleanu, being one of the biggest tenants of Bărăganu, strove to practice an integrated agriculture, applying irrigation and capitalizing on grain production by raising animals. He scientifically experimented with both the cultivation of new varieties of wheat and the breeding of new breeds of animals, always with efficiency in mind. He was a member of the Conservative Party, close to Alexandru Marghiloman, and the area of his entrepreneurial concerns directed him towards those specific to the bourgeoisie – oil business, the establishment of a bank and the spa resort of Amara. During the Great War of National Integration, as president of the Union of Agricultural Trade Unions, he was tasked by King Ferdinand with the mission of convincing the big owners of the necessity of expropriation in order to appropriate the peasants and ensure peace in the country. Thus, he became a legendary character in Bărăganului.

Identification of wheat seed endosperm texture using hyperspectral imaging combined with an ensemble learning model

Differences in wheat endosperm structure contribute to differences in wheat flour texture and directly affect aspects such as flour quality, processing, and use. Therefore, the accurate classification of wheat based on endosperm texture is of immense practical interest. In this study, hyperspectral imaging technology (400–1000 nm) was combined with ensemble learning to classify wheat with different endosperm textures using spectral and shape features. Two feature extraction algorithms, competitive adaptive reweighted sampling and successive projection algorithm, were used to extract feature wavelengths. Furthermore, unknown characteristic data (new varieties of wheat) were fed into the model for classification. The results showed that feature fusion can markedly improve classification accuracy. The full-wavelength, subspace-based ensemble learning model based on the fusion of spectral and shape features had the best performance, and its classification accuracy reached 92.10%. In addition, the accuracy of all models for predicting new varieties decreased. However, the subspace-based ensemble learning model showed the best performance for identifying new wheat varieties with 88.03% accuracy. Thus, ensemble learning effectively classified both multiple known and new varieties of wheat with different endosperm textures. These results and this technology can help farmers and food manufacturers optimize their crop selection and processing strategies.

Сортова специфіка потреб пшениці озимої в елементах живлення в умовах нестійкого зволоження

Goal. To identify the peculiarities of the accumulation of nutrients in the productive part of plants of new varieties of winter wheat in years with different hydrothermal conditions after the restoration of vegetation. Methods. On typical chornozems of varietal testing grounds after the restoration of spring vegetation in 2018 – 2020, the supply of NPK, Zn, Mn, and Cu to winter wheat plants of 4 varieties of national standards and 8 varieties of selection of EU countries was studied. Results. Among the varieties of foreign selection, the highest nitrogen content in grain for the entire period of research was in the variety Arktis (2.34%), among domestic varieties — Bunchuk (2.18%), the lowest — in the varieties Manditsa (1.62%) and Smuglianka (1.83%). The variety Rozkishna is relatively undemanding to phosphorus and potassium, the variety Bodichek — to potassium, regardless of growing conditions. A variable consumption response was also fixed. Under favorable moisture conditions, the plants of the variety Annitsa increased the accumulation of RK, the variety Arktis — of P. The variety Dariya has a constant high need for Zn and Mn, but a variable need for Cu, while the variety Matrix — a constant low need for Zn and Mn. Recommendations were developed for increasing or decreasing the rates of application of NPK, fertilizers, and microelements for each studied variety of foreign selection concerning the norms of fertilization of national standards. Conclusions. Varieties with signs of constant increased or decreased accumulation of nutrients, as well as varieties that change the concentration of NPK and trace elements in the final product in years with arid and favorable weather conditions of spring vegetation were identified. It is proposed to test the nutrition of new varieties of wheat during variety testing to further adjustment of the rates of fertilizer application.

KUZGI QUMSHOK BUGDOINING MAHALLIY FIYYUK, UNDORLIK VA KO'RSATMACHILARNING SIFATI.

The climate change, rising temperatures and drought taking place globally nowadays, are affecting the quality of wheat (Triticum aestivum L.) grains grown in the southern regions of the Republic of Uzbekistan. In order to address this problem, researchers have compared grain quality indicators of 23 local lines of common wheat, bred by hybridization method, with standard varieties of ‘Grom’ and ‘Gozgon’. The main goal of the research into the wheat lines in the test nursery was to select high-crop, high-quality lines adapted to irrigated areas, as part of breeding new varieties of wheat and transfer to agro-ecological competitive variety. The selected standard varieties were planted in the largest area in the southern regions this year. In the experiment, the varieties and lines were placed in 3 replicates, and the data obtained were statistically analyzed. Important indicators of the quality of grain varieties and lines, such as content of protein, gluten, Gluten Deformation Meter (IDK) index and grain vitreousness have been subject to evaluation. The lines of genetically high quality grain after being selected were transferred to the next stage

Genomic Identification of HKT, AKT and KEA Gene Families Involved in Potassium Transport

Potassium is considered a key nutrient for plants and plays a vital role in the growth of plants by affecting various metabolic processes. Further, potassium can be used as a supplement and helps to protect plants from numerous diseases. Various genes have been reported for their involvement in the potassium transportation of plants. However, potassium transportation mechanisms are still unclear. Plants have an organized and complex potassium distribution system (channels and transporters). These channels and transporters are responsible for the uptake of K+ from the soil and its distribution among different parts of the plant. In the present studies, the potassium transportation system of wheat (Triticum aestivum) was identified along with the characterization of 25 genes (11 K+ channels and 14 K+ transporters). Protein structure predictions were performed, and 3D structures of the identified genes were reported, including their domains and motifs. Gene structural analyses showed that the introns and exons have similarities with the known sequences of rice and Arabidopsis thaliana. The identifications and characterization of potassium transportation genes may help to introduce new varieties of wheat with higher content of potassium.

Wheat Spike Detection and Counting in the Field Based on SpikeRetinaNet.

The number of wheat spikes per unit area is one of the most important agronomic traits associated with wheat yield. However, quick and accurate detection for the counting of wheat spikes faces persistent challenges due to the complexity of wheat field conditions. This work has trained a RetinaNet (SpikeRetinaNet) based on several optimizations to detect and count wheat spikes efficiently. This RetinaNet consists of several improvements. First, a weighted bidirectional feature pyramid network (BiFPN) was introduced into the feature pyramid network (FPN) of RetinaNet, which could fuse multiscale features to recognize wheat spikes in different varieties and complicated environments. Then, to detect objects more efficiently, focal loss and attention modules were added. Finally, soft non-maximum suppression (Soft-NMS) was used to solve the occlusion problem. Based on these improvements, the new network detector was created and tested on the Global Wheat Head Detection (GWHD) dataset supplemented with wheat-wheatgrass spike detection (WSD) images. The WSD images were supplemented with new varieties of wheat, which makes the mixed dataset richer in species. The method of this study achieved 0.9262 for mAP50, which improved by 5.59, 49.06, 2.79, 1.35, and 7.26% compared to the state-of-the-art RetinaNet, single-shot multiBox detector (SSD), You Only Look Once version3 (Yolov3), You Only Look Once version4 (Yolov4), and faster region-based convolutional neural network (Faster-RCNN), respectively. In addition, the counting accuracy reached 0.9288, which was improved from other methods as well. Our implementation code and partial validation data are available at https://github.com/wujians122/The-Wheat-Spikes-Detecting-and-Counting.

New varieties of wheat, triticale and spelt grains:Comparative characteristics of milling properties

Triticale and spelt grains are non-traditional types of plant raw materials that are promising for expanding the range of everyday products, healthy foods, as well as for the manufacture of food additives. A promising and relevant direction of scientific and practical research is the use of methods of biomechanical impact on the products of processing grain triticale and spelt grain in the form of flour, crumbs and bran to obtain food for general, functional and therapeutic purposes. The aim of the research is a comparative characteristic of the milling properties of new varieties of grain of wheat, triticale and spelt and the possibility of theit using for grinding into flour at existing grain processing enterprises. A comparative characteristic of the cereal-forming ability of new varieties of wheat, triticale and spelt has been carried out and it is revealed that the best cereal-forming ability belongs to the spelt grain of the "Gremme 2 U" variety, equal to 79.8 %, which is 4 % more than that of the wheat grain of the "Timiryazevskaya Jubilee" and 4.8 % of triticale grain of the "Timiryazevskaya 155" variety. It has been found that the highest flour yield under the same grinding regimes is obtained when grinding the grain of a new type of spelt "Gremme 2 U" amounted to 79.3 %. The largest amount of triticale flour of the highest grade T-60 is obtained from triticale grain of the "Timiryazevskaya 155" variety. The grain of wheat "Timiryazevskaya Jubilee" occupies an intermediate position both in terms of the total yield of flour and its quality compared to spelt and triticale. All three given new varieties of various crops have good flour-grinding properties and can be recommended for processing into high-quality bakery flour at flour mills when making grinding mixtures.

Sowing time and seeding rate in the new wheat varieties cultivation for seeds

The most effective agricultural techniques in the production of high-quality and productive seeds of wheat varieties are the sowing time and seeding rate. The results of the study showed that the best time for new varieties of wheat in the conditions of 2019-2020. is sowing on May 25 with a seeding rate of 5.5 million viable grains per hectare. In terms of yield, the promising variety Beiskaya surpassed the zoned variety Krasnoyarskaya 12 in all variants by 0.1 - 0.3 t / ha. The response of varieties to seeding rates is more noticeable at a late sowing period: the difference in yield in thinned and thickened crops was 0.4 t / ha, while at an early date - 0.2 t / ha. Indicators of the parameters of the elements of the structure of yield (weight of 1000 grains, grain content of an ear, productive stalk) increased with a late sowing period. Analysis of variance of wheat varieties by yield revealed that this indicator significantly depended on the sowing time - 54%, seeding rates - 22%, as well as on the hereditary characteristics of the studied forms - 14%. The seed multiplication factor (the ratio of the mass of harvested seeds to the mass of sown seeds) was 20-22 at a seeding rate of 3.5 million germinating grains per hectare for both varieties and 12-14 at a seeding rate of 5.5 million germinating grains per hectare; the reduced seeding rate allows you to get an additional 4-6 tons of seeds.

BLACK WHEAT BRAN AS A PROMISING SOURCE OF FOOD FIBRES WITH AN EXPANDED SPECTRUM OF FUNCTIONALITIES

Modern requirements of nutritiology determine the enrichment of a person’s daily diet with food fibres. Dietary supplements and cereal-based ingredients are widely used to achieve this goal. Wheat as a food crop traditionally occupies a leading position in food production. Currently, new varieties of wheat with colored grains are being given increasing attention as a source of high-activity phytochemical compounds, which can initiate a positive synergistic physiological effect in the complex. The black-grain wheat of the domestic variety "Chornobrova" belongs to the functional species among the new valuable colored varieties of wheat. It contains an increased amount of biologically active components concentrated in the husk and germ of the grain. At grain processing plants by-products are formed in the production of flour and cereals, among which the hard shells of grain release in the form of bran, that have a rich source of dietary fibres. The paper describes the breaking bran and grinding bran of black-grained wheat "Chornobrova". They contain up to 78.0% of polysaccharides, among which hemicelluloses and cellulose predominate. Both types of black wheat bran are protein-rich (13.0-15.3%), and the crude fat content does not exceed 2.1%. The non-hydrolyzed residue, represented primarily by lignin, reaches 3.8%. Bran is rich in phenolic compounds – powerful antioxidants with the mass fraction 310.0 mg/100 g. Both types of bran have a water retention and sorption capacity towards toxicants (phenol, Pb2+), cholic acid, methylene blue. As a result of acid treatment of bran, dietary fibre concentrates were obtained, in which non-starch polysaccharides predominate. They are characterized by modified physicochemical properties, namely improved water holding capacity, sorption activity against Pb2+, not inferior to bran in terms of the ability to bind cholic acids and methylene blue. "Chornobrova" wheat bran and dietary fibre concentrates are highly active enterosorbents with antioxidant activity, which can be considered as dietary supplements and food ingredients that should be included in recipes in the development of new functional foods.

Оцінка нових перспективних сортів пшениці озимої м’якої селекції ННЦ «Інститут землеробства НААН» за цінними господарськими ознаками

Winter soft wheat is one of the most important crops. New varieties of wheat should be characterized by a set of valuable economic characteristics, but the most relevant is the creation of varieties with high yields and grain quality, resistant to a complex of diseases and other negative factors. The aim of the study was to evaluate new promising varieties of winter soft wheat breeding of the NSC "Institute of Agriculture NAAS" for grain yield, winter hardiness, disease resistance and grain quality. Experimental studies were conducted at the NSC "Institute of Agriculture NAAS" in 2016-2020, research fields are located in the Fastiv district of Kyiv region. Different weather conditions over the years of research have contributed to a better and more comprehensive assessment of varieties on a set of valuable economic characteristics. During field experiments, the generally accepted technology of growing winter wheat was used. The area of the competitive variety testing site was 20.0 m2, repeated four times. Field, measuring and weighing, laboratory and mathematical and statistical methods were used during the research. In 2018, new varieties of soft winter wheat Krasunia Poliska, Mokosha, Pyriatynka, Fortetsia Poliska, Efektna and in 2020 the variety Zemlerob were transferred to the Ukrainian Institute of Plant Variety Examination for qualification examination. Varieties created in NSC "Institute of Agriculture NAAS" by the method of hybridization using as parent components varieties and lines of local and foreign breeding. The variety Krasunia Poliska, belongs to the Lutescens type, is characterized by high drought resistance, resistance to lodging, germination on stumps, grain shedding. The Mokosha variety, belongs to the Lutescens type, has high drought resistance, is resistant to lodging, germination on stumps and grain shedding. Variety Pyriatynka, belongs to the Lutescens type, has high drought resistance, resistance to lodging, germination on the stump, shedding. Fortetsia Poliska, belongs to the Alborbrum type, is characterized by high drought resistance, resistance to lodging, germination on the stump and shedding of grain. Variety Efektna, belongs to the Erythrospermum type, is short (plant height 64-80 cm), characterized by high drought resistance, resistance to lodging, germination on the stump, shedding. The variety of winter soft wheat Zemlerob, belongs to the Lutescens type, has high drought resistance, resistant to lodging, germination on the stump, shedding of grain. The highest grain yield on average over the years of testing was obtained in the variety Fortetsia Poliska - 7.31 t / ha, varieties Pyriyatynka and Zemlerob with indicators of 7.10 and 7.06 t / ha, respectively, were distinguished by high yields. The yields of Mokosha, Effektna and Krasunia Poliska ranged from 6.27 to 6.95 t / ha. According to the increased winter hardiness, the best varieties are Pyriatynka, Krasunia Poliska, Mokosha and Efektna with a score of 8.0-8.2 points. In the varieties Fortetsia Poliska and Zemlerob the score for winter hardiness was 7.8-7.9 points. Estimation of powdery mildew showed that the maximum percentage of lesions on average over the years of research was found in the variety Mokosha (25.5%). As the most stable selected varieties Efektna, Lisova pisnia, Pyriatynka and Fortetsia Poliska (1.7-11.6%). In terms of resistance to brown rust, all varieties showed high resistance, the damage did not exceed 8.0%. The most stable variety was Efektna (0.3%). The greatest damage to winter wheat varieties was found in leaf septoria, which ranged from 19.0 to 39.3%. The greatest resistance to this disease is determined in the cultivar Zemlerob. New wheat varieties should also be characterized by high levels of protein, gluten and other valuable traits that ensure grain quality. The highest protein content was determined in the grains of the varieties Efektna (11.67%), Mokosha (11.62%) and Krasuni Poliska (11.54%). According to the increased content of gluten, the varieties Krasunia Poliska, Lisova pisnia, Mokosha (19.22-19.66%) were distinguished. According to the highest indicators of sedimentation, the varieties Krasunia Poliska, Pyriatynka and Mokosha (34.50-34.84 %) should be noted, these varieties are also the best in terms of a comprehensive assessment of grain quality. New varieties of soft winter wheat Krasunia Poliska, Mokosha, Pyryatynka, Fortetsia Poliska, Efektna and Zemlerob breedibg of NSC "Institute of Agriculture NAAS" are characterized by high grain yield (up to 7.31 t / ha), increased winter hardiness and disease resistance, as well as good indicators of grain quality: protein content - up to 11.67%; gluten - up to 19.66%. The introduction of these varieties into production will allow to obtain high yields of quality grain.

Compositional, thermal and water sorption properties of wheat flour: comparing wild-relatives v/s elite wheat varieties used in current plant breeding.

Plant breeders are focused on creating new varieties of wheat with enhanced yield potential without affecting the quality of wheat for food. In this study, four cultivated varieties of wheat, Triticium asetivum and two wild relatives of wheat; Triticum timopheevii and Triticum urartu were studied. The impact of starch and protein content on structural, thermal and water sorption properties of four main wheat cultivars in comparison to the wild relatives has been studied. Wild relatives of wheat required higher temperatures to initiate starch gelatinisation and amylose/lipid complex formation as compared to the four main wheat cultivars. The carbohydrate region in FTIR indicates structural differences (ordered and unordered starch) in the different varieties of wheat flour. The differentiation between wild relatives and main varieties is at the species level. Both wild relatives showed a noticeable difference in moisture sorption behaviour as compared with the 4 main cultivars, especially in terms of monolayer (M0) and the strength of water binding to the primary sites (C) values.

Genome-wide identification of R2R3-MYB family in wheat and functional characteristics of the abiotic stress responsive gene TaMYB344

BackgroundMYB superfamily is one of the most abundant families in plants, which plays important roles in plant growth, development, and productivity. However, to date, researches on MYBs in wheat (Triticum aestivum L.) are scattered mostly, not comprehensive.ResultsIn this study, a total of 393 R2R3-MYBs and 12 R1R2R3-MYBs were identified and analyzed including gene structure, chromosomal distribution, synteny relationship, and evolutionary relationship. Then, 29 clusters tandem duplication and 8 clusters segmental duplication genes were discovered. The expression profile of the identified genes under abiotic and biotic stress was analyzed using RNA-seq data. Based on expression patterns analysis, we screened many candidate genes involved in plant response to abiotic and biotic stress. Among them, the functional characteristics of TaMYB344 were further studied. TaMYB344 was localized in the nucleus and functioned as a weak transcriptional activator. We demonstrated that TaMYB344-overexpressing transgenic tobacco plants had enhanced tolerance to drought, heat, and high salt stress.ConclusionsIn this study, 393 R2R3-MYBs and 12 R1R2R3-MYBs in wheat were systemically identified and analyzed. Differential expression analysis indicated that many R2R3-MYBs were involved in abiotic and biotic stress response. We identified a potential candidate gene TaMYB344, overexpression of which in tobacco plants enhanced drought, heat, and salt stress tolerance. These results will provide abundant molecular data for breeding new varieties of wheat in the future.

A study of new varieties of spring wheat selected at Far Eastern State Agrarian University in crop variety nurseries

The most important provision for ensuring high, stable spring wheat yields is the cultivation of new varieties, adapted to local agricultural conditions. Amur region’s specific climate and rapid development of fungal diseases during the vegetation period require particular crop varieties that are resistant to adverse factors. To create a variety that combines several targeted parameters that are stably manifested under different vegetation conditions in different years is a difficult and troublesome task since in many cases the needed features have an inverse dependence. The following paper presents the results of a three-year study of new varieties of spring wheat from cultivation nurseries. The data of field studies on the height of plants and their resistance to lodging and diseases, the duration of vegetation season, and productivity are presented. The analysis of grain quality of new varieties of wheat from Far Eastern State Agrarian University selection for hardness, natural weight, and kernel size was conducted. Most of the studied cultivation samples are medium-sized, quite resistant to lodging, successfully withstanding significant soil excessive moistening. Against natural infection background, some varieties are resistant to such dangerous, widespread infections as dust-brand, grain fusariose, and kernel black point of grain. Varieties with yields above standard, which can be classified by the quality of grain as valuable and strong wheat were identified. As part of the analysis of obtained data on several economically valuable traits, four promising spring wheat varieties can be distinguished to recommend them for the federal variety test: KSI-6, 13, 17, 18.

Modeling the Quality of New Wheat Varieties in Kazakhstan

The work investigates and demonstrates the analytical capabilities of statistical methods in the development of new varieties of wheat used for the production of pasta. By using examples of Kostanay, Pavlodar, Akmola, North-Kazakhstan region (NKR) and Aktobe regions, foridentifying significant factors, there were constructed regression equations due to initial factors, on the main components, according to the panel data. Based on the analysis of various regression models, the strengths of the relationship between the number indicators of the grain quality there was found soft and hard wheat varieties (Mereke 70, Tselina 50, Ertis 97, Astana 2, Astana, Aktobe39, Baiterek), taking into account the peculiarities of grain production in this area.

Genome-Wide Identification and Characterization of the OPR Gene Family in Wheat (Triticum aestivum L.).

The 12-oxo-phytodienoic acid reductases (OPRs), which belong to the old yellow enzyme (OYE) family, are flavin mononucleotide (FMN)-dependent oxidoreductases with critical functions in plants. Despite the clear characteristics of growth and development, as well as the defense responses in Arabidopsis, tomato, rice, and maize, the potential roles of OPRs in wheat are not fully understood. Here, forty-eight putative OPR genes were found and classified into five subfamilies, with 6 in sub. I, 4 in sub. II, 33 in sub. III, 3 in sub. IV, and 2 in sub. V. Similar gene structures and conserved protein motifs of TaOPRs in wheat were identified in the same subfamilies. An analysis of cis-acting elements in promoters revealed that the functions of OPRs in wheat were mostly related to growth, development, hormones, biotic, and abiotic stresses. A total of 14 wheat OPR genes were identified as tandem duplicated genes, while 37 OPR genes were segmentally duplicated genes. The expression patterns of TaOPRs were tissue- and stress-specific, and the expression of TaOPRs could be regulated or induced by phytohormones and various stresses. Therefore, there were multiple wheat OPR genes, classified into five subfamilies, with functional diversification and specific expression patterns, and to our knowledge, this was the first study to systematically investigate the wheat OPR gene family. The findings not only provide a scientific foundation for the comprehensive understanding of the wheat OPR gene family, but could also be helpful for screening more candidate genes and breeding new varieties of wheat, with a high yield and stress resistance.

Trends and Variability of Wheat Crop in Pakistan

The main focus of the study was to analyze trends and variability of wheat crop in Pakistan. Semi-log trend model was used to find trends and growth rate in area, yield and production of wheat crop whereas the variability was measured by Cuddy-Della Valle index of variability. The findings of the study illustrate that wheat area in Punjab, Sindh and Baluchistan was increased over the time whereas cultivated area of wheat in Khyber Pakhtunkhwa province was marginally decreased during 1981-85 to 2011-15. The results show that there was substantial increase in wheat yield and production in all four provinces of Pakistan. The increase in wheat yield may due to the adoption of new varieties of wheat in the country over the time. It was also concluded from the results that area and yield of wheat in Baluchistan recorded the highest degree of variability whereas in Punjab province area and yield of wheat crop were noticed the lowest degree of variability. Similarly, the maximum variability in wheat production was recorded for Baluchistan province followed by Sindh, Khyber Pakhtunkhwa, and Punjab. Mostly the variability in wheat production was due to the variability in wheat area and their yield.

Reactivity of gluten proteins from spelt and bread wheat accessions towards A1 and G12 antibodies in the framework of celiac disease

In the framework of celiac disease, this research aims at evaluating the reactivity of 195 wheat accessions and 240 spelt accessions to A1 and G12 monoclonal antibodies. A great variability in reactivity was found among the accessions of both subspecies. On average, spelt showed very slightly higher reactivity than wheat but accessions with low reactivity were encountered in both subspecies. In both wheat and spelt, there was no significant difference in the level of reactivity between varieties and landraces. Similarly, there was no significant difference in reactivity between old, mid and new varieties of wheat. In contrast, new spelt varieties showed lower levels of reactivity than old and mid ones. No relationship could be established between level of reactivity, protein content and the Zeleny index. This research did not establish a link between the breeding strategies for baking quality improvement and A1-G12 antibodies reactivity.

Characterization of the Socioeconomic Conditions, Full Package, and Adoption of New Technologies of Wheat Crop at Irbid Governorate, Jordan

The study explored socio economic conditions of wheat farmers to evaluate the impacts of the introduction of the full package(FP) which contains zero tillage, new varieties of wheat seed, adding fertilizer, using the combine, and using herbicides. Partial budget was used to work out the cost and returns of adopting the full package. The principal method was the administration of a household questionnaire. The household questionnaire was designed to elicit basic numerical data on household structure, farm inputs and expenditures, crop production, wheat variety, farming method, and the strengths and opportunities of the new adopted technologies. Strengths, Weaknesses, Opportunities, and Threats (SWOT) analysis was also used to provide a framework for potential solutions (opportunities) and threats, and analysis of the FP. Garrett ranking was applied to rank a set of factors in adopting the FP as perceived by the sample respondents based on certain criteria. A socio-economic questionnaire was designed to elicit basic numerical data. About 50 farmers were personally interviewed in Irbid governorate. Farmers were characterized by large number of family members and good education. The percentage of the male to female was nearly the same. Results showed that 48% of farmers have finished high school, and 34% have higher education.