Grain Protein Content Research Articles

Yield, growth development and grain characteristics of seven Quinoa (Chenopodium quinoa Willd.) genotypes grown in open-field production systems under hot-arid climatic conditions

Quinoa is an important Andean crop that can play a strategic role in the development of degraded lands in hot arid regions due to its high nutritional value, genetic diversity and its high adaptability to stressful environments. The aim of this work was to evaluate the agronomic performance (growth development, grain yield and grain quality characteristics) of seven quinoa genotypes (Giza1, Sajama, Santa Maria, Q102, Q29, Q27 and Q18) cultivated under open field conditions in the Sahara Desert of Algeria. Using randomized complete block design (4 blocks), field trials were conducted during two cropping seasons (2017–2018 and 2018–2019) from November to April. The measured parameters included: plant height, number of panicles per plant, 1000-grain weight (TGW), grain yield (GYd), grain protein content (GPt), grain saponin content (GSC), and maturity indicators. The genotype effect was statistically the main source of variation in most parameters investigated as compared to the effect of cropping year. The Q102 genotype produced the highest GYd (2.87 t/ha) and GPt (16.7 g/100 g DM); and it required medium period (149 days) to reach harvest maturity as compared to other genotypes. The genotype Giza1 showed the lowest GYd and also low values for most of traits measured. However, it had the shortest harvest maturity (139 days) and the lowest GSC (0.62 g/100 g DM). The variety Santa Maria recorded the highest TGW (2.68 g), but it took 164 days to reach harvest maturity and it had high GSC (1.92 g/100 g DM). Though the best yield and grain quality characteristics were not reunited in single genotype, our findings showed that quinoa has multi-benefit potentials as a new crop for the arid agriculture in particular in hot-arid regions of North Africa.

Examination of Different Sporidium Numbers of Ustilago maydis Infection on Two Hungarian Sweet Corn Hybrids' Characteristics at Vegetative and Generative Stages.

Corn smut is one of the major diseases in corn production. The cob infection causes high economic and quality loss. This research investigated the effects of three different concentrations of corn smut infection (2500, 5000, and 10,000 sporidia/mL) on two Hungarian sweet corn hybrids (Desszert 73 and Noa). Plants were infected at the vegetative (V4-V5) and the generative (V7) stages. The effects of the corn smut infection were evaluated at 7 and 14 days after the pathogen infection (DAPI) at vegetative and at 21 DAPI at generative stages. The photosynthetic pigments (relative chlorophyll, chlorophyll-a and b, and carotenoids), malondialdehyde (MDA), and proline concentration, activities of the antioxidant enzymes [ascorbate peroxidase (APX), guaiacol peroxidase (POX), and superoxide dismutase (SOD)], morphological characteristics (plant height, stem and cob diameter, cob length, cob and kernel weights), mineral contents (Al, B, Ca, Cr, Cu, Fe, K, Mg, Mn, Na, P, Pb, S, Sr, and Zn), and quality parameters (dry matter, fiber, fat, ash, nitrogen, and protein) were measured. At both sampling times (7 and 14 DAPI) in both hybrids, the corn smut infection reduced the photosynthetic pigments (relative chlorophyll, chlorophylls-a, and b, and carotenoids) irrespective of the spore concentration. Under the same conditions, the MDA and proline contents, as well as the activities of APX, POX, and SOD increased at both sampling times. The negative effects of the corn smut infection were also observed at the generative stage. Only the 10,000 sporidia/mL of corn smut caused symptoms (tumor growth) on the cobs of both hybrids at 21 DAPI. Similarly, this treatment impacted adversely the cob characteristics (reduced cob length, kernel weight, and 100 grains fresh and dry weight) for both hybrids. In addition, crude fat and protein content, Mg, and Mn concentration of grains also decreased in both hybrids while the concentration of Al and Ca increased. Based on these results, the sweet corn hybrids were more susceptible to corn smut at the vegetative stage than at the generative stage.

Water and nitrogen management influence on oil and protein concentration in maize

AbstractThe effects of water and nitrogen management on the oil and protein concentration of maize (Zea mays L.) grown in semiarid conditions are not well documented, although it is rather important for local consumers. The objectives of this study were, therefore, to determine the interaction between different nitrogen fertilizer rates and irrigation regimes on nitrogen uptake, and oil and protein content of maize grain. The importance of this study is to understand how the interaction of nitrogen and irrigation management affects the growth of maize and, thus, identify the best management practices to attain an optimal yield. A field experiment was conducted for 2 consecutive years in 2009 and 2010 using 5 nitrogen fertilizer rates, ranging from 100 to 300 kg N ha−1, and 3 levels of irrigation management, ranging from 375 to 525 mm ha−1, for a total of 15 treatments. The results showed that nitrogen accumulation in the maize plant linearly increased in applications up to 300 kg N ha−1 even under deficit irrigation (375 mm ha−1). For the application of 300 kg N ha−1 under optimum irrigation (525 mm ha−1), nitrogen accumulation in the plant's aboveground canopy was significantly increased (e.g., 145.7 and 144.3 kg ha−1 during 2009 and 2010, respectively) as compared to smaller N application rates. The combined nitrogen and irrigation regimes of 300 kg N ha−1 with 525 mm of irrigation resulted in the numerically maximum grain oil concentration, that is, 62 and 65 g kg−1 during 2009 and 2010, respectively, and protein concentration in grains, that is, 116 and 120 g kg−1 during 2009 and 2010, respectively. The regression analyses showed that the protein and oil concentrations of the grain are significantly and positively correlated with total nitrogen uptake. The nitrogen concentration in maize is driven by irrigation water and nitrogen fertilizer rates. Therefore, irrigation water and nitrogen fertilizers are the major inputs for not only improving maize grain yield but also maize grain quality.

Airborne hyperspectral and Sentinel imagery to quantify winter wheat traits through ensemble modeling approaches

Early prediction of crop production by remote sensing (RS) may help to plan the harvest and ensure food security. This study aims to improve the quantification of yield, grain protein concentration (GPC), and nitrogen (N) output in winter wheat with RS imagery. Ground-truth wheat traits were measured at flowering and harvest in a field experiment combining four N and two water levels in central Spain over 2 years. Hyperspectral and thermal airborne images coincident with Sentinel-1 and Sentinel-2 were acquired at flowering. A parametric linear model using all hyperspectral normalized difference spectral indices (NDSI) and two non-parametric models (artificial neural network and random forest) were used to assess their estimation ability combining NDSIs and other RS indicators. The feasibility of using freely available multispectral satellite was tested by applying the same methodology but using Sentinel-1 and Sentinel-2 bands. Yield estimation obtained the highest R2 value, showing that the visible and short-wave infrared region (VSWIR) had similar accuracy to the hyperspectral and Sentinel-2 imagery (R2 ≈ 0.84). The SWIR bands were important in the GPC estimation with both sensors, whereas N output was better estimated using red-edge-based NDSIs, obtaining satisfactory results with the hyperspectral sensor (R2 = 0.74) and with the Sentinel-2 (R2 = 0.62). When including the Sentinel-2 SWIR index, the NDSI (B11, B3) improved the estimation of N output (R2 = 0.71). Ensemble models based on Sentinel were found to be as reliable as those based on hyperspectral imagery, and including SWIR information improved the quantification of N-related traits.

The growing factors impact the productivity of new soft winter wheat varieties

Purpose. To determine the growing factors impact the economically valuable characteristics of new soft winter wheat varieties. Methods. Field, biochemical methods, ANOVA. Results. The influence of the growing zone, the growing season conditions and the genotype of the soft winter wheat varieties on yield, protein and gluten content were determined. The conditions of the growing zone have the greatest influence on studied varieties yield – 73%. On average, for 2020–2021, the maximum yield was obtained in the Forest-Steppe zone – 6.23–8.39 t/ha. In the Forest zone, the yield of studied soft winter wheat varieties was 5.31–7.02 t/ha. For the Steppe zone, the yield was within 5.16–6.63 t/ha. It was determined that varieties which showed low yield in the Forrest zone were characterized by higher yield in the Steppe zone. It was found that the growing zone (49%) and growing season (42%) conditions have the greatest effect on the protein content in grain of studied varieties. It was determined that variety ‘MANDARIN’ was characterized by the highest protein content in all growing zones (14.5–16.4%). In the Steppe and Forest-Steppe zones, high protein content was identified in grain of wheat varieties ‘Tata Mata’ (13.6–14.3%), ‘Eneida’ (13.6–14.3%) and ‘Novator’ (14.2 and 13.2%), in the Forest zone – in grain of varieties ‘Vahoma’ and ‘Eneida’ – 13.4% each. It was found that the growing zone conditions impacted gluten content in grain of studied wheat varieties by 64%, the influence of the growing season conditions was 28%. The effect of variety genotype on protein and gluten content was 5 and 4%, respectively. The grain of soft winter wheat varieties ‘MANDARIN’ and ‘Eneida’ contained the largest amount of gluten in all growing zones (27.7–31.8% and 27.3–30.3%). For the Steppe and Forest-Steppe zones, a high gluten content was found in grains of varieties ‘Illusion’ (28.4 and 30.8%) and ‘Tata Mata’ (27.8 and 29.8%). Conclusions. It was found that growing zone conditions of soft winter wheat varieties (73%) and the interaction of factors zone × year (21%) impacted the yield significantly. The growing zone conditions (49 and 64%), growing season conditions (21 and 28%) and genotype of variety (5 and 4%, respectively) had a significant influence on protein and gluten content. Therefore, a significant influence of growing zone conditions on the productivity indicators of soft winter wheat determines the need to select varieties in order to obtain a high yield, taking into account the soil and climatic zone

Effects of water deficit at different stages on growth and ear quality of waxy maize.

Extreme weather has occurred more frequently in recent decades, which results in more frequent drought disasters in the maize growing season. Severe drought often decreases remarkably plant growth and yield of maize, and even reduces significantly the quality of maize production, especially for waxy maize. To study the changes in plant growth, fresh ear yield, and fresh grain quality of waxy maize under water deficits occurring at different growth stages, and further strengthen the field water management of waxy maize, water deficit experiments were carried out under a rain shelter in 2019 and 2020. Water deficit treatments were imposed respectively at the V6-VT (DV6-VT), VT-R2 (DVT-R2), and R2-R3 (DR2-R3) stages of waxy maize, and treatment with non-water deficit in the whole growing season was taken as the control (CK). The lower limit of soil water content was 50% of field capacity for a water deficit period and 65% of field capacity for a non-water deficit period. In this study, water deficits imposed at V6-VT and VT-R2 stages decreased plant growth rate and leaf gas exchange parameters, accelerated leaf senescence, and limited ear growth of waxy maize, which resulted in 11.6% and 23.1% decreases in grains per ear, 19.4% and 7.3% declines in 100-grain weight, 20.3% and 14.2% losses in fresh ear yield in 2019 and 2020 growing seasons, respectively, while water deficit at R2-R3 stage had no significant effect on ear traits and fresh ear yield, but the fresh ear yield with husk of DR2-R3 decreased by 9.1% (P<0.05). The obvious water deficit imposed at the V6-VT and VT-R2 stages also lowered grain quality. Water deficits at the V6-VT and VT-R2 stages led to accelerated maturity, resulting in increased total protein, starch, and lysine content in grains at the R3 stage and decreased soluble sugar content. Principal component analysis revealed that when water deficits occurred in the waxy maize growing season, they firstly altered maize physiological processes, then affected ear characteristics and yield, and finally resulted in significant grain quality changes. In conclusion, a water deficit during V6-VT and VT-R2 not only reduced fresh ear yield but also adversely affected grain quality. However, water deficit during R2-R3 had little effect on total protein, starch, and soluble sugar content,but increased obviously lysine content. The above results suggested that avoiding serious water deficits at the V6-VT and VT-R2 stages of waxy maize while imposing a slight water deficit at the R2-R3 stage has not only little effects on fresh ear yield but also a remarkable improvement in grain quality.

Quality of Bread Wheat (Triticum aestivum L.) as Influenced by Different Nutrient Management Approaches under Northern Transitional Zone of Karnataka

The field experiments were conducted at the Research Farm of AICW&amp;BIP, Main Agricultural Research Station, University of Agricultural Sciences, Dharwad during rabi 2020-21 and 2021-22 and was laid out in Randomized Complete Block Design with 15 treatments replicated thrice to evaluate the performance of wheat quality to various nutrient management approaches. The pooled data onto two years indicated that application of 275:40.33:135.2 kg of N:P2O5:K2O ha-1 for yield target of 55 q ha-1 under SSNM practices significantly increased the protein content (13.43 %), wet gluten (34.7 %), dry gluten (11.9 %), gluten index (81.6 %), sedimentation value (46.3 ml) and yellow pigment (5.93 ppm) in wheat grain and it was found on par with yield targets at 50 and 45 q ha-1 under SSNM.

Molecular Mapping of Biofortification Traits in Bread Wheat (Triticum aestivum L.) Using a High-Density SNP Based Linkage Map.

A set of 188 recombinant inbred lines (RILs) derived from a cross between a high-yielding Indian bread wheat cultivar HD2932 and a synthetic hexaploid wheat (SHW) Synthetic 46 derived from tetraploid Triticum turgidum (AA, BB 2n = 28) and diploid Triticum tauschii (DD, 2n = 14) was used to identify novel genomic regions associated in the expression of grain iron concentration (GFeC), grain zinc concentration (GZnC), grain protein content (GPC) and thousand kernel weight (TKW). The RIL population was genotyped using SNPs from 35K Axiom® Wheat Breeder's Array and 34 SSRs and phenotyped in two environments. A total of nine QTLs including five for GPC (QGpc.iari_1B, QGpc.iari_4A, QGpc.iari_4B, QGpc.iari_5D, and QGpc.iari_6B), two for GFeC (QGfec.iari_5B and QGfec.iari_6B), and one each for GZnC (QGznc.iari_7A) and TKW (QTkw.iari_4B) were identified. A total of two stable and co-localized QTLs (QGpc.iari_4B and QTkw.iari_4B) were identified on the 4B chromosome between the flanking region of Xgwm149-AX-94559916. In silico analysis revealed that the key putative candidate genes such as P-loop containing nucleoside triphosphatehydrolase, Nodulin-like protein, NAC domain, Purine permease, Zinc-binding ribosomal protein, Cytochrome P450, Protein phosphatase 2A, Zinc finger CCCH-type, and Kinesin motor domain were located within the identified QTL regions and these putative genes are involved in the regulation of iron homeostasis, zinc transportation, Fe, Zn, and protein remobilization to the developing grain, regulation of grain size and shape, and increased nitrogen use efficiency. The identified novel QTLs, particularly stable and co-localized QTLs are useful for subsequent use in marker-assisted selection (MAS).

Effect of Production Technology Intensity on the Grain Yield, Protein Content and Amino Acid Profile in Common and Durum Wheat Grain

Products derived from wheat grains are an important source of protein in the daily diet of people in many parts of the world. The biological value of protein is determined by its amino acid composition and the proportions of the individual amino acids. Synthesis of these compounds in wheat grains is influenced by genetic factors, as well as habitat conditions and the agrotechnology applied in cultivation. The aim of this study was to assess the effect of production technology (integrated, intensive) on the grain yield and the content amino acid profile of protein in common and durum wheat grain. Field research was conducted at the Experimental Station IUNG-PIB in Osiny (Poland) in two growing seasons. It was found that grain yield significantly depended on the weather conditions in the years of harvesting and genotype, but did not depend on the production technology. On the other hand, the protein content and their amino acid composition depended significantly on the production technology and genotype. A significantly higher content of protein substances was found in durum wheat grain. Increasing the intensity of production technology had a positive effect on the total protein content and the content of individual amino acids, both exogenous and endogenous. The amino acid limiting the biological value of protein contained in grains of both wheat species was lysine, and the deficiency of this amino acid was significantly lower in grain protein from intensive than integrated cultivation technology.

Comparative assessment of the winter grain crops’ feeding value by the content of arabinoxylans

ABSTRACT The main difference in fodder qualities of winter rye, triticale and wheat grains is the content of anti-nutritive substances: water-soluble pentosans and, accordingly, the viscosity of the aqueous extract of grain. Lack of scientific information about the content of antinutrients in the grain of winter cereal crops determines the relevance of the research; and the possibility to develop ways of using it and volumes of production for fodder purposes determines study’s innovativeness. The paper was set out to make a comparative assessment of the winter rye, winter triticale and winter wheat grain quality. On average for three years, the protein content of winter wheat grain was 11.5%, winter triticale – 10.0% and winter rye – 8.5%. In terms of starch content, winter wheat grain differs significantly from winter rye grain (by 0.9 percentage points more); winter triticale (by 0.8 percentage points more). On average, over three years, phosphorus in winter rye grain was 0.02 percentage points less than in wheat grain and 0.03 percentage points less than in triticale grain. Winter triticale and wheat grains hardly vary in the content of arabinoxylans and the viscosity of the aqueous extract. The results can be used in fodder production and animal husbandry.

Late-season nitrogen application increases grain protein concentration and is neutral for yield in wheat. A global meta-analysis

Late-season nitrogen (N) application has been proposed to boost grain yield and grain protein concentration (GPC) in cereals; however, its effects on bread and durum wheat have been inconsistent in field experiments. We performed a meta-analysis to (i) assess the effect of N applications to wheat after flag leaf visible (GS 37) on grain yield and GPC; and to assess the variation in these responses with (ii) N fertiliser management, (iii) environmental factors, and (iv) physiological traits. We searched ‘ Agronomy Journal ’, ‘ Crop Science ’, ‘ European Journal of Agronomy ’, and ‘ Field Crops Research ’ for articles published between 1980 and 2021 that allowed for a direct comparison of wheat yield and GPC between N application after GS 37 to an otherwise equally managed crop that received basal N fertilisation. We also collected other traits such as stover biomass and N uptake at plant maturity, and dough rheological properties, when available. The search resulted in 38 articles that, in addition to one unpublished trial from our group, evaluated 542 pairwise comparisons in 127 environments. Across studies, grain yield ranged from 1.15 to 10.63 Mg ha −1 and showed a negative relation with GPC, which ranged from 65 to 189 g kg −1 . Late-season N fertilisation was consistently neutral for grain yield (I 2 , proportion of the overall variance due to variation in real effects rather than chance, 26.2 %) and increased GPC with a pooled estimate of 3.96 %. The response of GPC was heterogeneous (I 2 = 84 %), suggesting the need for exploration of potential moderators of the response. Meta-regression suggested that increasing the proportion of late N relative to the total available N positively associated to increases in GPC, and the residuals of this analysis suggested that later applications increased GPC response, with no effect of N fertiliser source or placement. Environments with low temperature, high photothermal quotient, and long duration of the critical period associated with greater GPC response to late-season N applications. The relative response of GPC to late fertilisation correlated with the relative response of both stover N uptake and nitrogen concentration in stover at maturity, but not with stover biomass at maturity. Alveogram index and dough extensibility increased when late-season N increased GPC. Enhancing GPC through late N applications should consider associations between management, environmental, and physiological factors. Future research should focus on forecasting GPC response to late N, based on GPC response drivers identified in the current research. • Meta-analysis highlighted physiological drivers of wheat response to late N • Grain yield was unaffected by late N across a broad range of environments • Late N increased protein by 3.96% and its effects were heterogeneous • Protein increased linearly with the proportion of late N and with later applications • Higher protein response to late N associated to favourable growing conditions

Integration of Canopy Water Removal and Spectral Triangle Index for Improved Estimations of Leaf Nitrogen and Grain Protein Concentrations in Winter Wheat

Previous studies on estimating leaf nitrogen concentration (LNC) and grain protein concentration (GPC) from canopy reflectance did not pay particular attention to the nitrogen (N) and protein absorption features, which are mostly located in the shortwave infrared (SWIR) region and challenging to use due to the adverse effect of water absorption. This study aimed to develop a new approach to mitigate the effect of water signals from canopy reflectance spectra of winter wheat and enhance the absorption features of N and protein in the SWIR region. The water effect at the canopy level was removed by using the simulated dry-canopy reflectance (SDR) spectra based on the radiative transfer models and a three-band spectral triangle index (STI) was constructed to capture the chemical-specific absorption variations of N and protein. The results demonstrated that these absorption features became sufficiently apparent by canopy water removal. With the SDR spectra, the STIs with three bands related to N and protein absorption features in SWIR sub-regions exhibited remarkably stronger correlations with LNC and GPC than those with the measured reflectance (MR) spectra. Specifically, STI <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2060-2180-2240</sub> from the SDR spectra achieved the top sensitivity to LNC and GPC. The combination of plant pigment ratio (PPR) and STI <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2060-2180-2240</sub> yielded significantly lower root mean square error (RMSE) values (LNC: RMSE = 0.19%; GPC: RMSE = 0.67%) than either one alone. The integration of water removal and STI could help us better understand the underlying mechanism on the relationships of LNC and GPC with N and protein absorption features.

Эффективность возделывания гороха Премьер в зависимости от вносимых минеральных удобрений и норм посева

Purpose: to study the efficiency of cultivation of the variety Premier peas on ordinary chernozem, depending on mineral fertilizers and seed sowing rates. Materials and methods. The experience was laid on the fields of the Department of Agriculture and Crop Production of Federal Rostov Agricultural Research Centre. The objects of research are the elements of pea productivity, yield and protein content in grain, depending on the fertilizers applied and the seeding rate. Statistical analysis of data, records and observations were carried out according to the method of B. A. Dospekhov. Results. The sowing rate influences the el-ements of pea productivity. An increase in the rate to 1.2 million seeds/ha leads to a signifi-cant reduction in the number of formed beans, the number of seeds in a bean, and a decrease in grain weight. Fertilizers did not have a significant effect on the elements of productivity. The introduction of phosphorus and potash fertilizers leads to a significant increase in the yield of peas. The combined application of nitrogen, phosphorus and potassium leads to a sig-nificant increase in yield when sown 1.0 and 1.2 million seeds/ha. Nitrogen fertilizers do not have a significant impact on the yield of peas. The fertilizers application helps to increase the protein content in the grain. The maximum was obtained in the N₆₀ variant, amounting to 24.8 %. The responsiveness of peas to introduced fertilizers depends on the seeding rate. At the optimal rate of 1.2 million seeds/ha, the highest payback was obtained in the variant with the introduction of 20 kg of a. i. phosphorus and potassium, amounting to 7.7 kg/kg a. i. Conclusions. The best results were obtained when sowing 1.2 million seeds/ha, which pro-vides an opportunity to get the highest conditional net income with high profitability of pro-duction. The maximum conditional net income of 41.7 thousand rubles/ha was observed in the option P₄₀K₄₀, while the profitability of production was 139.39 %, the cost of production was 12.5 thousand rubles/t.

Impact of Different Fertility Levels and Organic Nutrient Sources on Productivity, Quality and Economics of Wheat (Triticum aestivum L. Emend. Fiori &amp; Paol)

A field study was carried out at the Agricultural Research Farm, Vivekanand Global University, Jaipur, Rajasthan during Rabi season of 2018-19 with the objective to find out the impact of different fertility levels and organic nutrient sources on productivity, quality and economics of wheat. The field experiment was laid out with three fertility levels (75%, 100% and 125% recommended dose of fertilizers) randomly allocated to the main plots of split plot design and five treatments of organic sources (control, vermicompost @ 2.5 t ha-1, vermicompost @ 2.5 t ha-1 + Azotobacter + PSB, farmyard manures @ 5 t ha-1 and farmyard manures @ 5 t ha-1 + Azotobacter + PSB) assigning to sub-plots by replicating thrice. The experimental findings revealed that, among the fertility levels, the application of 125% recommended dose of fertilizers (120:60:60 N: P: K) being at par with 100% recommended dose of fertilizers, recorded significantly maximum yields (grain, straw and biological yield, respectively 40.19, 58.27 and 98.46 q ha-1), nitrogen content and their uptake by grain and protein content in grain of wheat over 75% recommended dose of fertilizers. The same treatment also recorded significantly maximum net returns ( 33698 ha-1) and B: C ratio (1.46) of wheat. Similarly, the application of farmyard manures @ 5 tha-1 + Azotobacter + PSB being at par with application of vermicompost @ 2.5 t ha-1 + Azotobacter + PSB, recorded significantly highest grain, straw and biological yield (42.13, 61.07 and 94.85 q ha-1, respectively), nitrogen content and their uptake by grain and protein content in grain of wheat as compared to other treatments. The results further stated that significantly maximum net returns (32384 ha-1) and B: C ratio (1.48) of wheat was obtained by application of farmyard manures @ 5 tha-1 + Azotobacter + PSB.

Reducing the dose of mineral fertilizers using organomineral bionutrients

The results of work on the creation of a line of complex bionutrients mainly of organomineral synthesis and biological origin, based on physical methods of activation of known and long-used in agricultural practice products of metabolism of living organisms (animals- microorganisms- annelids), which, due to the activation of metabolic processes in plants, would enhance the immune status of plants and improve metabolic processes, thereby reducing the need for chemical pesticides and mineral fertilizers. The aim of the work was to study the effectiveness of the use of a bionutrient based on a combination of activated humates and organo-mineral compounds in a field experiment on winter wheat at various levels of mineral nutrition. It was found that the combined use of mineral fertilizers and bionutrients increased the yield of winter wheat by 22-23%. According to the impact on the yield of winter wheat, the use of bionutrients in the dry year of 2022 guaranteed and more effectively replaced the use of mineral fertilizers. With an increase in the dose of mineral fertilizers in winter wheat grain, the content of gluten and protein increased. A similar increase in the content of gluten and protein was noted in winter wheat grain treated with a bionutrient preparation. The combined use of NPK and bionutrient caused the highest content of gluten and protein in winter wheat grain. The use of the bionutrients contributed to an increase in ear productivity, improved overwintering and plant survival during the growing season, and increased plant resistance to Swedish fly infestation.

A new method for preparing the instant quinoa by piecewise gelatinization

In recent years, the market has great demand for the instant quinoa. However, the high content of protein and fat in quinoa grain inhibited the gelatinization and extension of starch molecules. The instant quinoa prepared by conventional gelatinization method has poor rehydration. In order to solve this problem, the sectioned heating method was used according to the properties of quinoa starch and protein. The purpose of the first heating stage was to gelatinize the starch with sufficient water, and the technological conditions were: the mass ratio of water to quinoa 4:1, the temperature of water bath 70 °C, the time of water bath 60 min. The purpose of the second heating stage was to denature the protein with less water, and the technological condition was that the quinoa was heated by atmospheric steam for 5 min. The instant quinoa prepared by above method had excellent rehydration. Compared to the raw quinoa, the content of protein, fat and reducing sugar in instant quinoa increased slightly, while the content of starch and polyphenols decreased slightly. The mass loss percentage of instant quinoa was 11.5% and the score of sensory evaluation for the sample prepared under the optimum conditions was 87.

Results of the analytical study of the growth, development, grain yield and quality of Mung Bean (Rhaseo1is Aireis Piper) varieties under the conditions of grassy swampy soils

In this article was described the effect of the studied factors on the height and productivity of mung bean stalks and grain quality. According to the results of the experiment, it was found that the growth of the varieties according to the planting period was 2.3-5.2 cm higher than the height of the stem when planted on June 20 and July 1 compared to the spring period. It was found that on June 20, the yield of the “Durdona” variety increased by 2.2-2.8 s/h compared to the spring planting period. In addition, planting dates and rates affect the protein content of mung bean grain, as the planting rate increases, the amount of protein decreases, and when repeated planting, the amount of protein in the variety “Navruz” is 1.7-1.0%, “ It was found that it increased by 0.3-0.5% in Durdona variety. Key words: mung bean, Asian bean, meadow-swampy soil, Navruz, Durdona, variety, podding, tuganak, stem, protein, productivity.

Yield and grain quality parameters in domestic and foreign varieties of soft winter wheat

Topicality. One of the main indicators that determine the commercial value of wheat grain, its baking and technological properties is the mass fraction of protein. The results of scientific research and agricultural production practices show that over the past 80–90 years in the southern regions of Ukraine, the protein content of winter wheat grain has decreased from 17–18 % to 10–12 %, and in unfavourable weather conditions, the amount of protein in grain can even decrease to 8.0–9.5 %. Improving the wheat grain quality is one of the challenges facing Ukraine today. Ukraine has a high position in the global grain market: its share in wheat exports averages 5 %. Purpose. To estimate the yield and biochemical parameters of grain quality of soft winter wheat at the current stage. Methods. Field trials were conducted according to the B. A. Dospekhov’s methodology of field experience. Agricultural technology of winter wheat cultivation is generally accepted for the Steppe zone of Ukraine. Accounting the yield was carried out according to the methodology of state variety testing the agricultural crops. The protein content in the grain was determined by infrared spectrometry and the Kjeldahl method. The level of protein sedimentation was determined by the SDS 30 method. Results. When comparing the obtained data on yield in the collection, it was found that modern domestic and foreign varieties (I, II, III group) in the optimal conditions of growing season had an average yield of 103–107 % higher than varieties of early stages of breeding. The soft winter wheat varieties developed by the Plant Breeding and Genetics Institute – National Center for Seeds and Cultivar Investigation are the leaders in terms of yield. Foreign varieties are not sufficiently adapted to local weather conditions, which significantly affects the realisation of yield potential. As a result of the negative correlation between yield and grain quality, with each stage of breeding, including in modern varieties, grain protein content decreases by 0.5–1.5 % along with yield growth. In terms of sedimentation level, the varieties of the Plant Breeding and Genetics Institute – National Center for Seeds and Cultivar Investigation prevail over the varieties of the early stages of breeding. The group of varieties of Ukrainian breeding has a great diversity in terms of sedimentation level. Foreign varieties have rather low sedimentation rates. The realisation of the genetic potential of grain yield and quality of the studied varieties depended on weather conditions and doses of mineral fertilisers. Conclusions. Given the negative correlation between yield and grain quality, the significant success of breeding in increasing the yield of Ukrainian and foreign varieties was accompanied by decreasing protein content at each stage of breeding by 0.5–1.5 %. Compared to the varieties of the early stages of breeding, the SDS-30 sedimentation index was the highest only in the varieties of Plant Breeding and Genetics Institute – National Center for Seeds and Cultivar Investigation, while domestic varieties of other research institutions were slightly inferior to the varieties of the early stages of breeding. The group of foreign varieties had the lowest sedimentation index. In addition to the genetic factor, such factors as weather conditions and rates of mineral nutrition have a great influence on the formation of grain yield and quality. Key words: wheat yield, wheat adaptability, grain protein content, sedimentation, fertilizers, biochemical parameters

TECHNOLOGICAL AND BAKERY PROPERTIES OF GRAIN FORMS OF WHEAT CREATED BY HYBRIDIZATION OF TRITICUM AESTIVUM L. × TRITICUM SPELTA L.

TECHNOLOGICAL AND BAKERY PROPERTIES OF GRAIN FORMS OF WHEAT CREATED BY HYBRIDIZATION OF TRITICUM AESTIVUM L. × TRITICUM SPELTA L.

Quality of Bread Wheat (Triticum aestivum L.) as Influenced by Different Nutrient Management Approaches under Northern Transitional Zone of Karnataka

The field experiments were conducted at the Research Farm of AICW&amp;BIP, Main Agricultural Research Station, University of Agricultural Sciences, Dharwad during rabi 2020-21 and 2021-22 and was laid out in Randomized Complete Block Design with 15 treatments replicated thrice to evaluate the performance of wheat quality to various nutrient management approaches. The pooled data onto two years indicated that application of 275:40.33:135.2 kg of N:P2O5:K2O ha-1 for yield target of 55 q ha-1 under SSNM practices significantly increased the protein content (13.43 %), wet gluten (34.7 %), dry gluten (11.9 %), gluten index (81.6 %), sedimentation value (46.3 ml) and yellow pigment (5.93 ppm) in wheat grain and it was found on par with yield targets at 50 and 45 q ha-1 under SSNM.