Texas Journal of Agriculture and Biological Sciences
Texas Journal of Agriculture and Biological Sciences provides the opportunity to the authors to publish their original research articles in field of Agriculture and Biological Sciences. Frequency of Publication: Monthly ISSN (Online): 2771-8840 doi Prefix: 10.62480 Acceptance Notification: 45 Days
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Bioecological Features of The Plant Verbena Officinalis L. In The Conditions of Karakalpakstan
Verbena officinalis L. perennial herbaceous plant of the Verbenaceae family and a cultivated flower of the subshrub family. Its homeland is Peru. More than 200 species grow in the tropical and subtropical regions of the Americas. The flowers are corymbose, in a raceme 6-7 cm in diameter, white, red, pink, yellow, or purple. It is cold-resistant and does not freeze even under early snowfall. Verbena is propagated by seed. Seeds are sown in greenhouses in February and March. It flowers from June to October. The stem is erect and branched. The essential oil contained in the leaves and inflorescences is also used in perfumery
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Development Of A Complex Biotechnological System For In Vitro Propagation Of Plumeria Plants
Plumeria species are highly valued ornamental and medicinal plants, but their conventional propagation methods are slow and inefficient for large-scale production. This study focuses on the development of a complex biotechnological system for the in vitro propagation of Plumeria plants. The system integrates optimized surface sterilization procedures, nutrient media composition, and plant growth regulators to ensure high regeneration efficiency. Shoot induction, multiplication, rooting, and acclimatization stages were systematically optimized under controlled laboratory conditions. The results demonstrate that the use of Murashige and Skoog (MS) medium supplemented with appropriate concentrations of cytokinins and auxins significantly enhances micropropagation efficiency. The developed protocol ensures rapid, uniform, and disease-free plant production, offering a reliable biotechnological approach for the conservation and mass propagation of Plumeria species
Determination of the Meliorative Condition of Irrigated Lands Using Rapid Devices
This article analyzes the assessment of the meliorative condition of irrigated lands using modern devices. Modern technologies were applied to study the level of soil salinity, its changing trends, and the effectiveness of meliorative measures. The article also develops scientifically grounded recommendations for effective reclamation measures to combat soil salinization
Taxonomic Composition And Faunistic Characteristics Of Scaritinae (Carabidae) In The Fergana Valley
The article examines the spatial distribution, landscape zonation, and ecological dependencies of representatives of the Scaritinae subfamily under the conditions of the Fergana Valley. The results indicate that species belonging to this subfamily are predominantly distributed in alluvial plains, riverbanks, and sandy-clay soils. It was also determined that their activity is significantly influenced by soil moisture, temperature, and anthropogenic factors.
The Influence Of Environmental Factors On The Phenotypic Variability Of Common Bream (Abramis Brama) In The Lower Reaches Of The Zarafshan River Basin
The article investigates the phenotypic plasticity of common bream (Abramis brama) in the lower reaches of the Zarafshan River under conditions of anthropogenic and environmental transformation. The study reveals the impact of changes in the hydrological regime, water mineralization levels, and the food base on body morphometry. The results clarify the adaptation mechanisms of the species to extreme conditions.
Studying The Effectiveness Of The Drug Meth Killer 90% S.P. Uzbekistan In The Fight Against The Cotton Bowl On The Cotton Plant
Meth Killer 90% s.p. It turned out to be an effective means in the fight against cotton bollworm at a rate of 0.3-0.4 kg/ha on cotton crops. At the specified consumption rate, the drug Met Killer 90% s.p. does not have a toxic effect on the growth and development of plants. Based on the results of the industrial field test, we believe that it is necessary to include the drug Met Killer 90% s.p. in the “List of ...” of the Republic of Uzbekistan. against cotton bollworm the norm is 0.3-0.4 kg/ha on cotton crops.
Application Of Excise Tax On Certain Types Of Imported Products
This article examines the world experience of excise taxes, their impact on the economy, health and ecology. Based on the experience of countries such as the USA, the European Union, Turkey, Russia, South Korea and China, the results of excise taxes on tobacco, alcohol, sweet drinks, chips, fries, electronic cigarettes, pyrotechnics and expensive cars are reviewed. In addition, the importance of excise taxes in Uzbekistan, statistical data on excise taxes collected from imported products in 2023-2024 and international comparisons are presented. In particular, the volume of food products such as potato chips and fries, as well as luxury goods such as pyrotechnics, electronic cigarettes and expensive cars, the geography of imports, customs duties collected and benefits provided are analyzed. The article provides recommendations for improving excise taxes, promoting healthy eating, limiting the advertising and illegal trade of harmful products. These measures are aimed at increasing state budget revenues and forming a healthy lifestyle for the population
The influence of different application rates of various phosphorus fertilizers on the growth and development of winter wheat
The article presents data on the influence of different application rates of various phosphorus fertilizers on the growth and development of winter wheat. According to research, phosphorus fertilizers had a significant impact on the growth and development of soft winter wheat on light-gray soils in the Kashkadarya region.
Studying The Growth Of Hybrid Mulberry Cuttings In The Kashkadarya Region
This article examines the establishment of bush plantations with ringed and unringed cuttings of hybrid and cultivar mulberry trees in the Kashkadarya Region. The effectiveness of horizontal planting of mulberry cuttings is also discussed
Microbiological Examination Of Uterine Secretion In Cows With Mastitis
In this article, the main composition of microorganisms isolated from mastitis of dairy cows is Candida+Staphylococcus aureus+Streptococcus agalaetiae fungi and staphylococci; Staphylococcus aureus+Streptococcus agalaetiae; Streptococcus dysgalaetiae+Staphylococcus haemolyticus; Staphylococcus epidermidis+Escherichia staphylococci and streptococci; Candida species Coli+fungi; Staphylococcus epidermidis+Clostridium perfringens are staphylococci and clostridia, including Streptococcus agalaetiae (27%), Staphylococcus aureus, Staphylococcus hominis, Staphylococcus saprophyticus, Escherichia Coli (4%), Streptococcus dysgalaetiae, Clostridium perfringens (3%).
Seasonal Dynamics of Collembola (Springtail) Fauna in the Soils of Fruit Orchards National University of Uzbekistan
This article investigates the seasonal dynamics of Collembola fauna in the soils of fruit orchards. During the study, seasonal changes in the abundance, activity, and species composition of collembolans were analyzed throughout the year. Soil samples were collected in spring, summer, autumn, and winter, and collembolans were extracted using a Berlese–Tullgren apparatus and identified based on morphological characteristics. The results showed that the highest population densities of collembolans were recorded in spring and summer, which can be explained by favorable soil moisture and temperature conditions during these seasons. In autumn, their abundance decreased relatively, while in winter it reached minimum levels. The findings confirm that collembolans are important bioindicators for assessing soil ecological conditions. The obtained data are of scientific and practical significance for monitoring soil health, ensuring ecological sustainability, and conserving biological diversity in fruit orchard agroecosystems
Effects Of Chitosan And Whey Powder Supplementation On Mineral Metabolism And Digestive Enzyme Activity In Broiler Chicks: Evidence Synthesis And A Methodological Framework
Improving feed efficiency while reducing reliance on antibiotic growth promoters remains a key challenge in modern broiler production. This paper synthesizes international and CIS literature on chitosan (a cationic biopolymer) and whey powder (a dairy by-product rich in high‑biological‑value proteins and bioactive peptides), focusing on two mechanistic endpoints: mineral metabolism (Ca, P, Mg) and digestive enzyme activity (amylase, lipase, protease). Using a scoping‑review approach, studies published between 2010 and 2026 were mapped across PubMed, Cambridge Core, MDPI, Google Scholar, and open regional databases. Data were extracted on dosage, duration, measurement protocols, and key zootechnical outcomes. The synthesis indicates that chitosan may modulate intestinal barrier integrity, microbiota balance, and mineral bioavailability through adsorption and ion‑exchange properties, whereas whey powder may support metabolic stability via high‑quality protein fractions and peptides, with downstream effects on gut morphology and nutrient utilization. Local studies from Uzbekistan report beneficial shifts in growth performance, mineral indicators, and bone‑related metrics when chitosan and whey are applied in combination. The paper proposes an evidence matrix, a conceptual mechanism model, and practical methodological recommendations for future controlled trials.
Promising Direction: Use Of Insects As Raw Material For Chitosan Production
The article examines the possibility of using insects as an alternative source of chitosan. The chemical composition of insect exoskeletons, the main stages of the technological process for obtaining chitosan, and the advantages of this raw material in terms of sustainable development are described. It has been shown that insects can be considered as a promising and environmentally safe raw material base for the production of chitosan. Chitosan is a natural biopolymer with high biological activity and a wide range of practical applications
The Ecological Balance Of Pathogenic And Beneficial Microflora In The Potato Root System
This article investigates the ecological balance between pathogenic and beneficial microorganisms in the potato (Solanum tuberosum L.) root system. Based on literature analysis and experimental observations, the interactions between root-associated pathogens and beneficial fungi and bacteria are examined, highlighting their influence on plant health, disease suppression, and productivity. The study demonstrates that maintaining microbial equilibrium is essential for sustainable agriculture, improving crop resistance, and optimizing potato yield. These findings are of high scientific and practical significance for integrated crop management and microbial ecology studies.
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Methods Of Applying Herbicides Against Weeds Around The Field
The article identifies the harmful effects of herbicides on weeds around the field by determining the degree of herbicide effect for each species, specifically determining the dosage of preparations based on weed species and development conditions, and recommending control measures
Cultivation of Cotton Using Drip Irrigation Technology
The article presents the results of an experiment conducted on meadow-alluvial soils of the Bukhara region, where the groundwater table is at a depth of 2.0–2.5 m. In the experimental cotton field irrigated using drip irrigation, when the pre-irrigation soil moisture was maintained at 75–80–65% of the field capacity (FC), the cotton was irrigated four times according to the 0-4-0 irrigation scheme. No irrigation was applied during the period from germination to flowering, while during the flowering–boll formation stages, four irrigations were carried out with irrigation rates ranging from 616 to 651 m³/ha. The total seasonal irrigation norm amounted to 2521–2537 m³/ha, which is 1594–1633 m³/ha less compared to the control variant, indicating significant water savings
Meat Productivity Of Karakul Rams Of Different Colors
The article presents the study of milk productivity of karakul sheep depending on the colour in the northern conditions of the Republic of Karakalpakstan. Optimal opportunities of increasing мeat productivity were determined; the results of changing daily milk productivity in agedependent dynamics weregiven
Bioecological Features Of The Molody Parasitic Fauna Rutilus Aralensis Of The Amu Dalta
The article examines the results of research on the ecological characteristics of fish parasites of the Turtkul pond farm in the conditions of the Southern Aral Sea region. It has been established that over 40 years, the parasitofauna of individual fish has significantly depleted in the lower reaches of the Amu Darya, particularly in the Turtkul pond farm system
Method For Determining The Population Dynamics Of Micromammalia In The Southern Aral Sea Region
The article presents a method for determining the population dynamics of small mammals in the Southern Aral Sea region. Relative calculations of the number of small mammals were carried out using a Gero type recorder, using the trap-line method. To prove the quantitative influence of anthropogenic pollutants on the structure and dynamics of the Microtus Ilaeus population of the studied small mammals, mathematical models were constructed that calculate the coefficient of determination (R2), indicating the degree of influence of each selected factor.
Melon's Beneficial Properties And Pest Control
Today, cultivation of melons and their protection against perts, diseases and alien species is a major issue in the field of crop cultivation. In particular, the fight against quarantine pest Myiopardalis pardalina Вezzihelps to reduce the melanoma production by 80–85%. It also describes the preservation of the article, and the measures it takes against it to clarify all the research findings.
Entomofauna Of Plants Of The Genus Cerasus (Prunus) And Their Role In The Agroecosystem
This article examines the composition, proportion, and ecological interactions of harmful insects and their natural enemies – entomophages – occurring in the cherry (Cerasus spp.) agrobiocenosis of the Fergana Valley during 2020–2025. The study identified 21 species of harmful entomofauna and 48 species of beneficial entomophages. The analysis showed that among pests, the orders Coleoptera (38.1%) and Lepidoptera (19.0%) are dominant, while among entomophages, the greatest proportion belongs to representatives of Diptera and Arachnida (27.1% each). These groups play a crucial role in maintaining the biological balance of the agroecosystem.
Kholmirzaeva Zulfizarkhon Bakhodirjonovna
The Scientific Foundations of Modern Sterilization Processes and Their Role in Microbiological Safety
This article provides an expanded theoretical overview of modern sterilization processes, emphasizing their scientific foundations, molecular mechanisms, and critical role in microbiological safety. Sterilization is examined as a complex, interdisciplinary system integrating microbiology, chemistry, physics, and biotechnology. The paper discusses the resistance mechanisms of microorganisms—particularly bacterial spores—and the ways in which physical, chemical, and radiation-based sterilization methods overcome such resistance. The study highlights the importance of process validation, biological indicators, and emerging low-temperature and plasma-based sterilization technologies. The article concludes that sterilization represents a key component of scientific research integrity, clinical safety, and modern biotechnological manufacturing.
Effect of seeding systems and application rates of mineral and organic fertilizers on stem height of sunflower
This article examines the effect of sowing scheme, organic and biohumus fertilizers on the germination of sunflower seeds and seedling density. The highest germination rate was observed when organic fertilizers were applied at a rate of 20 tons per hectare, and the seeds were 70x20-1; 70x25-1; When studying the 4-5-6 variants planted in 70x30-1 systems and applying 10-15-20 tons of manure per hectare in addition to the mineral fertilizers N150P105K150 kg/ha during the growth period, the stem height was 17.0-19.0-20.5 cm in the 1st pair of leaves formation phase, 38.3-41.3-44.5 cm in the 3rd pair of leaves formation phase, 64.7-69.4-74.0 cm in the basket formation phase, 96.1-102.8-108.9 cm in the flowering phase, 119.4-129.1-138.4 cm in the seed setting phase, and 134.0-148.7-162.7 cm in the full ripening phase, and the seeds 70x20-1; 70x25-1; 70x30-1 systems were planted, and mineral fertilizers were applied at the rate of N150P105K150 kg/ha during the growing season.
Morphological and Morphogenetic Characteristics of Dark Gray Soils (in the Example of theBakhmal District, Jizzakh Region)
This study investigates the morphological and morphogenetic characteristics of dark gray soils developed under natural conditions in the Bakhmal district of the Jizzakh region, Uzbekistan. The research was conducted on uncultivated dryland dark gray soils formed on deluvial–proluvial and loess parent materials within a semi-arid climate and a complex geomorphological setting. Field investigations included the description of soil horizons, determination of humus horizon thickness, and analysis of carbonate accumulation patterns. Laboratory analysis complemented field data to assess the physical structure and textural composition of the profiles
The Impact Of Biochemical And Hematological Blood Parameters On Aerobic Oxygen Delivery Capacity In Young Athletes
This study investigated the relationship between hematological and biochemical blood parameters and aerobic capacity in young male and female athletes. The findings revealed a significant correlation between red blood cell parameters (RBC, hemoglobin [HGB], and hematocrit [HCT]) and key indicators of aerobic capacity, including VO2max, anaerobic threshold (AP), and oxygen utilization efficiency (VO2/YYQ). Additionally, it was observed that lower levels of urea, total bilirubin, and iron in the blood were associated with a higher heart rate at the anaerobic metabolism threshold. The study underscores the importance of monitoring hematological and biochemical parameters to better understand and enhance athletic performance in young athletes, while also highlighting the need for genderspecific approaches in training and physiological assessment
hematological and biochemical parameters
New and modern methods of combating grain pests
The scientific article examines the species composition, bioecological characteristics of the dominant species, habitat, harmfulness, as well as the species composition and importance of natural weeds in the development of measures to protect grain crops. The results obtained were analyzed and effective chemicals and measures were introduced to combat harmful pest species.
Demand and Market Opportunities for Condensed Milk Products in Uzbekistan’s Food Industry
This article explores the demand and market opportunities for condensed milk products in Uzbekistan’s food industry. It analyzes consumer preferences, economic and cultural drivers of demand, historical consumption patterns, and the growing role of condensed milk in both domestic consumption and international trade. The study also highlights market opportunities such as product diversification, innovation, export potential, and integration with Uzbekistan’s broader food security strategy. Particular attention is given to the challenges faced by the dairy sector, including technological modernization, supply chain constraints, and the need for adherence to international quality standards. The discussion provides a comprehensive view of how condensed milk can serve as a driver of value-added growth in Uzbekistan’s agri-food sector
The Influence Of Different Doses Of Mineral Fertilizers On The Content Of Digestable Forms Of Nitrogen And Phosphorus In Meadow Gray Soil And The Productivity Of Winter Wheat In Irrigged Uzbekistan
In the diverse soil and climatic conditions of irrigated agriculture in Uzbekistan, in connection with global climate change and soil degradation, improved technologies for the use of mineral fertilizers have been developed and are an urgent task. In addition, at present, in almost all zones of irrigated agriculture of the republic, mineral fertilizers are applied to winter wheat according to the Agro recommendations prepared earlier [1;31-33, 2;37-41, 3;35]. To obtain guaranteed and planned yields of winter wheat, it is necessary to conduct zonal experiments to study the responsiveness of winter wheat to mineral fertilizers, in particular in the meadow gray soils of the Navoi region
Investigation of the Depth Stability of the Furrow Former of a Saxaul Seed Planter
The article presents analytical expressions for determining the depth stability of the furrow former of a saxaul seed planter and identifies the factors that influence its performance
The scientific article examines the species composition, bioecological characteristics of the dominant species, habitat, harmfulness, as well as the species composition and importance of natural weeds in the development of measures to protect grain crops. The results obtained were analyzed and effective chemicals and measures were introduced to combat harmful pest species