Barley Yield Research Articles

Genome-wide association scan reveals the reinforcing effect of nano-potassium in improving the yield and quality of salt-stressed barley via enhancing the antioxidant defense system.

Salinity is one of themajor environmental factor that can greatly impact the growth, development, and productivity of barley. Our study aims to detect the natural phenotypic variation of morphological and physiological traits under both salinity and potassium nanoparticles (n-K) treatment. In addition tounderstanding the genetic basis of salt tolerance in barley is a critical aspect of plant breeding for stress resilience.Therefore, a foliar application of n-K was applied at the vegetative stage for 138 barley accessions to enhance salt stress resilience. Interestingly, barley accessions showed high significant increment under n-K treatment compared to saline soil. Based on genome-wide association studies (GWAS) analysis, causative alleles /reliable genomic regions were discovered underlying improved salt resilience through the application of potassium nanoparticles. On chromosome 2H, a highly significant QTN marker (A:C) was located at position 36,665,559 bp which is associated with APX, AsA, GSH, GS, WGS, and TKW under n-K treatment. Inside this region, our candidate gene is HORVU.MOREX.r3.2HG0111480 that annotated as NAC domain protein. Allelic variation detected that the accessions carrying C allele showed higher antioxidants (APX, AsA, and GSH) and barley yield traits (GS, WGS, and TKW) than the accessions carrying A allele, suggesting a positive selection of the accessions carrying C allele that could be used to develop barley varieties with improved salt stress resilience.

Alternative cereal crop rotations in a no‐tillage dryland under Mediterranean conditions

AbstractCereal crops are frequently rotated with broadleaf crops to achieve the benefits associated with crop diversification. However, broadleaf crops often fail in Mediterranean drylands due to their lower adaptation to drought. Alternative cereal crops such as triticale (×Triticosecale Wittmack) and oat (Avena sativa L.) can help diversify drylands in the Ebro valley, dominated by barley (Hordeum vulgare L.) and wheat (Triticum aestivum L.) cultivation. A 6‐year field experiment was conducted with five crop sequences under no‐tillage: triticale–wheat–barley (TWB), oat–wheat–barley (OWB), fallow–wheat–barley, monocrop wheat, and monocrop barley. Wheat and barley grain yield, N use efficiency, and water use efficiency responses were evaluated, and economic analyses of the whole sequences were performed. Oat increased subsequent wheat yields by 15% and barley yields by 12% (p < 0.001) compared to monocropping. Similar water and N availability at sowing suggest additional synergies in an OWB rotation (possibly pest reduction), contributing to the yield increase of both crops. However, this rotation was less profitable than a TWB rotation (p = 0.002) due to the limited adaptation of oat to Mediterranean settings. Long fallowing lacked consistent benefits in water and N availability for subsequent crops. This practice protects farmers from economic losses in low‐yielding seasons, but there is an associated opportunity cost in favorable years. The introduction of alternative cereal crops has demonstrated benefits for wheat and barley production, although greater understanding of the synergistic mechanisms involved is essential to ascertain whether resource efficiency is maintained beyond the studied timeframe.

Effect of sowing methods and nutrient management on growth, yield and quality of barley (Hordeum vulgare L.)

Effect of sowing methods and nutrient management on growth, yield and quality of barley (Hordeum vulgare L.)

Продуктивность пивоваренного ячменя в зависимости от приёмов основной обработки почвы и регулятора роста Моддус

In modern conditions, the most effective way to increase the gross production of spring barley is to select the most productive varieties and realize their potential productivity by improving the technology of cultivation of spring barley for specific soil and climatic conditions of the zone. In this regard, the improvement of the complex of agricultural practices that increase the yield of barley is relevant and of particular scientific and practical interest. The purpose of the research was to improve the techniques of basic tillage and the use of growth regulators in the cultivation of spring malting barley. The research was conducted from 2022 to 2024 in the Moscow region at the experimental field of the Federal Research Center "Nemchinovka". The soil is sod-podzolic, heavy loamy. pH is 5.4 units. The humus content is 1.7%. As a result, on average for 2022-2024, observations of the spread of weeds in malting barley crops found that the smallest number of all weeds was fixed on the variant of chisel processing by Ranch workers with pruning paws to a depth of 0.27-0.30 m and amounted to 154 pcs/case. The highest height of brewing barley plants of the Reliable variety on average for 2022-2024 turned out to be on the variant of chisel tillage m without the use of growth regulators and was 69 cm. The largest number of productive stems was established on the variant of chisel tillage to a depth of 0.27-0.30 m without the use of a growth regulator and amounted to 498 pcs./m2, that is, 51 pcs./m2 more than the lowest value. The largest grain mass in the ear was set on a variant of chisel tillage to a depth of 0.27-0.30 m using the growth regulator Moddus CE at a dose of 0.4 l /ha and was equal to 1.25 grams, that is, 0.17 grams more than the lowest value. The highest yield was also formed on the variant of chisel processing by the working body of the Ranch with pruning paws to a depth of 0.27-0.30 m using the growth regulator Moddus CE at a dose of 0.4 l /ha and averaged 6.10 t/ha.

Vulnerability of barley yields in Québec.

Climate projections across Québec indicate increased water stress and recurrent vulnerability of cropping systems. In recent years, reports of droughts and water stress have been recorded across the province. Many parts of Québec have experienced droughts in the past few years, which have had uninvestigated impacts on crops. These droughts have been described as some of the most significant in the last 80 years. On the positive side, climate change is likely to trigger shorter winters and therefore longer growing seasons for several crops. However, for crops like maple syrup, the regions suitable for their cultivation will shift northwards. Despite these projections, studies monitoring the susceptibility of barley to environmental changes, climate variability, and adaptive capacity across Québec are still limited. This study aims to provide a provincial-scale portrait of vulnerability of barley in Québec based on historical growing season precipitation, barley yield, and socioeconomic data (literacy and poverty rates) using a composite statistical model. Growing season precipitation data were downloaded from Ouranos. Barley yield data were collected from the Institut de la Statistique du Québec, and the socio-demographic data were collected from the Advisory Council of Poverty and the Institut de la Statistique du Québec. A vulnerability index with sub-indices (sensitivity, exposure, and adaptive capacity) is deployed. It is hypothesised that (1) vulnerability is inversely associated with adaptive capacity, and (2) the peripheral regions of Québec are more vulnerable and less adaptive to climate stressors. Initial results show that when the vulnerability index for barley is more prominent, the associated index of adaptive capacity is relatively lower. A significant gradient between the peripheral and southern regions of Québec is observed, with vulnerability lowest around Montreal/Laval and gradually increasing towards the peripheral regions. A better understanding of vulnerability warrants a change in approach from focusing solely on climate-related variables to integrating socioeconomic proxies. The challenge, however, has been how to introduce these socioeconomic proxies into empirical and process-based crop models.

Influence of a New Generation Fungicide on Fusarium Head Blight in Spring Barley

Fusarium head blight is a serious problem in both traditional and intensive agriculture. The way to solve this problem is to use combined systemic fungicides. We therefore studied the effect of the new-generation fungicides Alto Super and KE (Propiconazole 250 g/l and Ciproconazole 80 g/l) combined with the foliar fertilizer Ultramag Super Sulphur-900. Laboratory studies were carried out at the Plant Pathology Laboratory of the People's Friendship University of Russia (RUDN), and field experiments were carried out in 2022 at the experimental field station of the Federal Research Centre "Nemchinovka." Fusarium head blight appeared in late July and early August. The application of the new-generation fungicide Alto Super, KE, alone and in combination with the new foliar fertilizer Ultramag Super Sulphur considerably reduced the development of the epiphytotic fungal disease. Their biological efficacy was 44.53–83.36%. The yield of Nur Spring barley in the experimental variants was higher than in the control variant. The yield gain of spring barley increased by 5.85% for Alto Super, KE, 9.40% for Ultramag Super Sulphur-900, and 12.85% for Alto Super, KE, and Ultramag Super Sulphur-900.

Yield and quality of spring barley grain depending on the influence of precursors and mineral fertilizers under the conditions of the Central Black Earth region

The barley crop (Hordeum sativum L.) for the Central Black Earth region of Russia is a promising area for producers of all types of ownership. Barley is a valuable universal crop rich in complete protein and starch. In Russia, up to 70 % of barley is used for feed purposes. The feed value of barley is higher than that of wheat and corn, since it has a more balanced amino acid composition of protein, especially lysine. The protein complex of barley contains more than 20 amino acids, 5 of which are essential. The purpose of the research was to investigate the yield and quality of spring barley grain depending on the eff ect of predecessors and mineral fertilizers under the conditions of the Central Black Earth region. The object of the study was the spring barley variety Knyazhich. The following predecessors were studied such as grain corn, sunfl ower, sugar beet and soybeans. The fertilizer application rates were such as N10P10K10, N30P30K30, N50P50K50 and N70P70K70. It was found that the highest yield of spring barley was obtained with sugar beet as a predecessor. Thus, with a low background of mineral nutrition N10P10K10 it was 3.84 t/ha, with an average N30P30K30 it was 4.87 t/ha, with a high N50P50K50 it was 5.48 t/ha and with an intensive N70P70K70 it was 5.33 t/ha. Thus, the analysis of the eff ectiveness of the studied predecessors and the application of mineral fertilizers under spring barley indicate that for the predecessors sugar beet and soybeans, mineral fertilizers in the dose of N50P50K50, the highest profi t of 30343.5 and 25747.1 rubles/ha and a high bioenergy coeffi cients of 4.84 and 4.51 were obtained.

Determining the Effect of Integrated Nutrient Management on Growth and Yield of Barley (Hordeum vulgare L.) in Rajasthan, India

A field experiment was conducted at experimental farm, Department of Agronomy, Faculty of Agriculture and Veterinary Sciences, Mewar University Gangrar, Chittorgarh (Rajasthan) during Rabi season of 2022-23 to effect of integrated nutrient management on growth and yield characters of barley variety “Rd-2036‟ was used in this study. The required quantities of fertilizers as per treatments were applied. The experiment was laid out in randomized block design with three replications consisting of nine treatments combinations. The increased yield parameter such as number of per siliqua, seed yield, stover yield harvest index was recorded with T9 (Azotobacter + PSB + 30 kg ha-1 N through inorganic Fertilizer + 30 kg ha-1 N through poultry manure). The data revealed that the maximum plant height (97.05 ccm), total numbers of tillers (70.25) and yield attributes spike length (7.68 cm), number of grains/spike (44.96), grain yield (42.58 q/ha), straw yield (60.15 q/ha), biological yield (102.73 q/ha) and net return (53406.30 Rs/ha) was recorded with treatment T5-75% RDF + PSB + Azotobacter.

Сравнительная оценка урожайности зерновых культур в зависимости от лимитирующих факторов в условиях почвозащитного земледелия

Abstract. The aim of work – to identify the influence of limiting factors on increasing the yield of grain crops in crop rotations and soil fertility in a sloping landscape. The following methods were used during the study: field, Kosyrev, thermostatic-weight, ionometric, Machigin, Tyurin, quantitative, balance calculations of yield. Scientific novelty. For the first time, the yield of field crops in grain-steam crop rotations was estimated from the influence of meteorological conditions, moisture, mobile forms of nutrients, humus, seedlings and weed infestation in the arid conditions of the Orenburg Trans-Urals. Results. As a result of research (2021–2023), it was revealed that during the growing season (May-August), the average monthly air temperature (18.6 ℃) and the number of dry days (76) adversely affect (55.85 and 67.50 %) the yield (1.00 t/ha) of barley in the lower part of the slope. In the upper and middle parts of the slope, dry days (56.75 and 64.45 %) negatively affect the yield (1.44 and 1.20 t/ha) of barley. Precipitation in the form of rain (116 mm) during the growing season has a beneficial effect (53.05 %) on the yield (1.34 t/ha) of durum wheat in the middle part of the slope. Spring moisture reserves (152.1 mm) in a meter layer of soil have a positive effect (75.15 %) on the yield (1.30 t/ha) of soft wheat in the upper part of the slope. The increase in yield (1.45 t/ha) of durum wheat and (1.44 t/ha) of barley in the upper part of the slope is due to the influence of (72.30 and 56.05 %) phosphorus content (4.7 and 4.1 mg / 100 g) in the arable soil layer by the end of the growing season. In the middle and lower parts of the slope, the yield of soft wheat (1.20 and 1.10 t/ha) depends on the effect (65.50 and 54.01 %) of the residual content (4.7 and 4.4 mg / 100 g) of phosphorus. The use of agrotechnical soil protection techniques increases the yield of grain crops in crop rotations and soil fertility on the slope, especially on the upper part.

Characterization of core microbiota of barley seeds from different continents for origin tracing and quarantine pathogen assessment

Seeds are important microbial vectors, and seed-associated pathogens can be introduced into a country through trade, resulting in yield and quality losses in agriculture. The aim of this study was to characterize the microbial communities associated with barley seeds, and based on which, to develop technical approaches to trace their geographical origins, and to inspect and identify quarantine pathogens. Our analysis defined the core microbiota of barley seed and revealed significant differences in the barley seed-associated microbial communities among different continents, suggesting a strong geographic specificity of the barley seed microbiota. By implementing a machine learning model, we achieved over 95% accuracy in tracing the origin of barley seeds. Furthermore, the analysis of co-occurrence and exclusion patterns provided important insights into the identification of candidate biocontrol agents or microbial inoculants that could be useful in improving barley yield and quality. A core pathogen database was developed, and a procedure for inspecting potential quarantine species associated with barley seed was established. These approaches proved effective in detecting four fungal and three bacterial quarantine species for the first time in the port of China. This study not only characterized the core microbiota of barley seeds but also provided practical approaches for tracing the regional origin of barley and identifying potential quarantine pathogens.

Interpretation of yield and quality traits of barley (Hordeum vulgare L.) varieties by heatmap technique

BackgroundBarley (Hordeum vulgare L.) is the most cultivated cool-season cereal after wheat in Türkiye. This can be attributed to its uses in the malt industry, human consumption, and animal nutrition etc. This study investigated yield, physiological, and quality traits of different barley varieties using heatmap and principal component analysis (PCA) technique to identify the varieties with better yield and superior quality. MethodsA total of 12 barley varieties (8 two-row and 4 six-row) were used in the study. The varieties were sown under natural conditions and data relating to yield, phenology and quality traits (grain yield, heading time, plant height, number of spikes m−2, 1000-grain weight, and starch ratio) were recorded. The recorded data were analyzed by PCA and heatmap techniques to determine the better-performing varieties. ResultsSignificant variations were observed among the tested varieties for all evaluated traits (p < 0.01). Heatmap categorized the recorded traits into two clusters, and traits within the same cluster exhibiting interconnectedness. The primary cluster comprised of plant height, heading time, and 1000-grain weight. Similarly, the second significant cluster contained the varieties with similar grain yield, starch ratio, and the number of spikes m−2. The varieties ‘Bozlak’ and ‘Mert’, ‘Aydanhanim’ and ‘Tosunpaşa’, ‘Erciyes’ and ‘Çatalhüyük’, and ‘Sabribey’ and ‘Asutay’, exhibited significant resemblance for the recorded traits. The PCA revealed that 1000-grain weight was associated with the heading time, whereas starch ratio was associated with the grain yield. ‘Erciyes’ (3.58 tons ha−1), ‘Çatalhüyük 2001′ (2.95 tons ha−1), and ‘Bozlak’ (2.72 tons ha−1) recorded the highest yield, whereas ‘Erciyes’ variety resulted in the delayed heading. Similarly, ‘Çatalhüyük’, and ‘Erciyes’ produced the highest number of spikes m−2. Likewise, ‘Çatalhüyük 2001′, and ‘Tosunpaşa’ resulted in the heaviest 1000-grains, while ‘Asutay’ resulted in the highest starch ratio. ConclusionIt is concluded that ‘Çatalhüyük’, ‘Erciyes’, and ‘Tosunpaşa’ are superior varieties in terms of yield-related traits, whereas ‘Asutay’ proved better for starch ratio. Therefore, these varieties could be used in future breeding programs to improve these traits.

QTL Mapping of Yield, Agronomic, and Nitrogen-Related Traits in Barley (Hordeum vulgare L.) under Low Nitrogen and Normal Nitrogen Treatments.

Improving low nitrogen (LN) tolerance in barley (Hordeum vulgare L.) increases global barley yield and quality. In this study, a recombinant inbred line (RIL) population crossed between "Baudin × CN4079" was used to conduct field experiments on twenty traits of barley yield, agronomy, and nitrogen(N)-related traits under LN and normal nitrogen (NN) treatments for two years. This study identified seventeen QTL, comprising eight QTL expressed under both LN and NN treatments, eight LN-specific QTL, and one NN-specific QTL. The localized C2 cluster contained QTL controlling yield, agronomic, and N-related traits. Of the four novel QTL, the expression of the N-related QTL Qstna.sau-5H and Qnhi.sau-5H was unaffected by N treatment. Qtgw.sau-2H for thousand-grain weight, Qph.sau-3H for plant height, Qsl.sau-7H for spike length, and Qal.sau-7H for awn length were identified to be the four stable expression QTL. Correlation studies revealed a significant negative correlation between grain N content and harvest index (p < 0.01). These results are essential for barley marker-assisted selection (MAS) breeding.

Determination of the Relationship of Harmonization Ratio and Some Yield Characteristics with Grain Yield in Barley

In this study, it was aimed to calculate the harmonization ratio before and after the flowering period (GFPtt/VPtt) in barley depending on thermal times, to determine the vegetative period (VP) and grain filling period (GFP) values for higher grain yield (GY) capacity and the possibility of using these qualities as adaptation and selection criteria and to determine the relationship between HR and GY calculated according to phenological periods depending on thermal times under Kahramanmaraş conditions. The experiments were carried out in Kahramanmaraş, located in the Eastern Mediterranean Region of Turkey, between 2014 and 2016 under the conditions of 9 genotypes for 2 successive years according to the randomized completed block design with 3 replicates. Phenological traits such as VP, GFP, GY and days to maturity (DM) were measured in relation to thermal times. According to the results, genotypes were found to be significantly different in terms of harmonization ratio in barley. Considering the two-year averages, the highest grain yields were determined as Samyeli (534.3 kg da-1) and Şahin-91 (532.8 kg da-1). The lowest grain yields were determined as Kendal (404.9 kg da-1) and Sur-93 (416.9 kg da-1). According to the results, barley genotypes were found to be significantly different in terms of harmonization ratio. The highest harmonization ratios were determined as Samyeli (0.753) and Kendal (0.672), the lowest harmonization ratios were determined as Şahin-91 (0.486) and Athena*Yabani (0.558). Although there was a general relationship between grain yield and harmonization ratio, some genotypes had values outside this trend.

Classification and prediction of drought and salinity stress tolerance in barley using GenPhenML

Genetic and agronomic advances consistently lead to an annual increase in global barley yield. Since abiotic stresses (physical environmental factors that negatively affect plant growth) reduce barley yield, it is necessary to predict barley resistance. Artificial intelligence and machine learning (ML) models are new and powerful tools for predicting product resilience. Considering the research gap in the use of molecular markers in predicting abiotic stresses, this paper introduces a new approach called GenPhenML that combines molecular markers and phenotypic traits to predict the resistance of barley genotypes to drought and salinity stresses by ML models. GenPhenML uses feature selection algorithms to determine the most important molecular markers. It then identifies the best model that predicts atmospheric resistance with lower MAE, RMSE, and higher R2. The results showed that GenPhenML with a neural network model predicted the salinity stress resistance score with MAE, RMSE and R2 values of 0.1206, 0.0308 and 0.9995, respectively. Also, the NN model predicted drought stress scores with MAE, RMSE and R2 values of 0.0727, 0.0105 and 0.9999, respectively. The GenPhenML approach was also used to classify barley genotypes as resistant and stress-sensitive. The results showed that the accuracy, accuracy and F1 score of the proposed approach for salinity and drought stress classification were higher than 97%.

Effects of Weeding Frequency and NPS Fertilizer Rates on Barley (Hordeum vulgare L.) Yield performance, Western Ethiopia

Background: Food barley is one of the main staple crops in Ethiopia, however, its production is influenced by several factors including the effect of weeds and low soil fertility. Purpose: An experiment was conducted with the objective of investigating the combined impact of weeding frequencies and NPS fertilizer rates on barley growth and yield performance. Methodology: Three levels of weeding frequencies (designated as W1, W2, and W3 for one-time, two-time, and three-time weeding, respectively), and five levels of NPS fertilizers (50, 100, 150, and 200 kg ha-1) were applied in an RCB and replicated three times. HB1307 was used as the test material. Results: The results indicated that NPS fertilizer rates and weeding frequency had a significant (p &lt; 0.01) main influence on barley phenology. The interaction between NPS fertilizer rates and weeding frequency resulted in a highly significant (p &lt; 0.01) impact on food barley production, grain yield, and other yield component metrics. Maximum straw yield (5476 kg ha-1) was obtained from the application of 200 kg NPS ha-1 with three weeding frequencies. Moreover, the highest grain output (4726 kg ha-1) and highest net return (106,889.8 ETB (Ethiopian Birr ha-1) with a marginal rate of return (47430.8%) were achieved by applying 200kg NPS ha-1 and weeding three times. Conclusion: Barley yield performance was greatly influenced by the application of 200 kg NPS ha-1 with three times weeding, resulting in the maximum grain yield (4726 kg ha-1) and straw yield (5476 kg ha-1) that was determined to be cost-effective. However, further research is required to achieve optimum rates of treatment.

Effects of vermicompost and mineral fertilizers on soil properties, malt barley (Hordeum distichum L.) yield, and economic benefits

AbstractSoil fertility depletion has significantly reduced the yields of various crops in Ethiopia, mainly the yield of malt barley in the district. To address this issue, integrated applications of vermicompost and mineral nitrogen (N) fertilizers were tested. Therefore, this study aimed to evaluate the effects of vermicompost and mineral nitrogen fertilizers application on malt barley yield (Hordeum distichum L.), soil properties, and economic benefits. The experiment was arranged in a randomized complete block design with three replications. The treatments were nine in various combinations of vermicompost (VC) and N fertilizer (N): (69 kg N; 0.79 t VC + 58.65 kg N; 1.59 t VC + 48.30 kg N; 2.39 t VC + 37.95 kg N; 3.19 t VC + 27.60 kg N; 3.98 t VC + 17.25 kg N; 4.78 t VC + 6.90 kg N; 5.31 t VC ha−1 and control). The highest soil pH was recorded by applying 5.31 t of vermicompost ha−1 alone. The highest total nitrogen (0.34%), available phosphorus (15.58 mg kg−1), grain yield (4950 kg ha−1), and net benefit (4255.74 USD) were recorded from the application of 2.39 t VC plus 37.95 kg N, while the highest soil organic carbon (3.38%) and cation exchange capacity (26.17 cmol (+) kg−1) were recorded from 3.19 t VC plus 27.60 kg N ha−1 compared to the control. This study concludes that applying 2.39 t VC and 37.95 kg N ha−1 in combination improves soil fertility, malt barley yield, and economic benefits for smallholder farmers in the study district and adopts this in similar soil types and agroecologies.

Влияние применения различных гуминовых препаратов на формирование урожая и качество зернофуражного ячменя

The results of studies on the effectiveness of seed treatment and plant spraying with various humic preparations on spring grain feed barley are presented. The objectives of the research included assessing the effect of various humic preparations on productivity, disease resistance and grain quality of spring barley under various methods of their application (seed treatment, plant spraying, seed treatment + plant spraying). The objects of research were spring two-row barley of the Raushan variety. Humic preparations Bigus and Gumat +7 were used. The research was carried out in 2022-2023 on gray forest, medium loamy soil. In 2022, moisture conditions during the growing season were favorable; in 2023, periodic severe drought events were observed. The use of humic preparations led to a decrease in the development of both leaf diseases (dark brown spot) and root rot. The drug Bigus Extra had a more pronounced effect on reducing the damage to plants by root rot. The use of humic preparations had a positive effect on the length of the stem and ear of barley. The maximum values of the stem length were when using seed treatment and spraying crops with Bigus Extra, and the greatest length of the ear was when using Gumi+7. The use of humic preparations increases the yield of spring barley from 11 to 27.8%. When using only seed treatment or only spraying of crops, Bigus Extra had an advantage in yield, and when using a combination – seed treatment + plant treatment Humat +7. The highest yield of spring barley (27.8% more than in the control) was obtained using a scheme in which seeds and plants were treated with Humate +7. The use of seed treatment followed by spraying of plants led to an increase in the protein content of barley grain. The use of humic preparations in which they are used for pre-sowing seed treatment and subsequently for spraying crops (twice) was optimal for spring barley.

Effects of Sowing Date and Cutting Management on the Grain and Fodder Yield of Barleyeffects of Sowing Date and Cutting Management on the Grain and Fodder Yield of Barley

Effects of Sowing Date and Cutting Management on the Grain and Fodder Yield of Barleyeffects of Sowing Date and Cutting Management on the Grain and Fodder Yield of Barley

Estimation of heterosis and combining ability for barley yield and its components under normal and water stress conditions

Estimation of heterosis and combining ability for barley yield and its components under normal and water stress conditions

Effect of NPK fertilization and seed rate on barley (Hordeum vulgare) yield, yield component and nitrogen dynamics in semi-arid conditions

Objective: This study aimed to investigate the impact of varying of NPK fertilization doses and seed rates on barley (Hordeum vulgare) yield, yield components, and inorganic nitrogen (NH4-N and NO3-N) dynamics in semi-arid conditions without artificial irrigation. Material and Methods: The field experiment was conducted at the Gobustan Experimental Station from October 2018 to June 2019, utilizing the "Celilabad-19" barley variety. A randomized complete block design with four replications was employed, incorporating various seed rates and NPK fertilizer treatments. Plant and soil samples were collected at different phenological stages, and analyses included grain and straw yield, yield parameters, total N content of plant, and soil NH4-N and NO3-N levels. Results and Discussion: The results the treatment with a seed rate of 140 kg/ha and N60P45K45 fertilizer application consistently demonstrated the highest aboveground biomass, grain, and straw yields. This treatment exhibited optimal N content during the Full Maturity stage of plant. Conclusion: In conclusion, this study has provided insights into optimizing barley cultivation practices in semi-arid climates, such as seed rate and NPK fertilizer dose. With a seed rate of 140 kg/ha and N60P45K45 fertilizer application, the highest yield and performance indicators were achieved in the “Celilabad-19” barley variety.