Texas Journal of Agriculture and Biological Sciences
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Results Of Selection Research On Developing New, HighYielding Varieties And Lines Of Bread Wheat Adapted To Climate Changes For Rainfed Lands
No full textAs a result of global climate change, Uzbekistan is observing an increase in air temperature, a decrease in precipitation levels, uneven distribution of rainfall during the plant vegetation period, and a reduction in the number of snowy days in winter. On rainfed lands, a significant difference in the heading phase was observed among wheat variety samples, new varieties, and lines. Although early heading in the studied varieties indicates early maturity, it was found that this leads to lower yields compared to latematuring varieties. However, some early-heading varieties were observed to have high grain yields. New varieties of Bread Wheat, such as KSI-96/2024/Sp-1/447/2021 (Tagob), KSI-97/2024/Sp-1/834/2021 (Zartepa), and the line Sp-1/382/2021 (earlyripe), were found to have higher grain yields compared to the early-ripening standard variety, despite heading earlier than this variety. Furthermore, during the studies, it was determined that a higher number of grains per spike and a greater weight of 1000 grains contribute more significantly to increased yield compared to other productivity element
Assessment Of The Biological Efficiency Of The Microbiological Preparation Cropguard (Ipl Biologicals Limited, India) Against Thrips On Cotton Under The Conditions Of Syrdarya Region, Republic Of Uzbekistan
No full textThe article presents the results of field experiments conducted in 2025 in the Syrdarya region, aimed at evaluating the biological efficiency of the microbiological preparation CropGuard (IPL Biologicals Limited, India), containing entomopathogenic fungi Beauveria bassiana and Verticillium lecanii, against thrips (Thripidae) on cotton. As a reference standard, the biopreparation BioSleep BW based on the entomopathogenic fungus Beauveria bassiana (strain OPB-43) was used. The experiments accounted for the abundance of two thrips species: onion thrips (Thrips tabaci Lind.) and wheat thrips (Thrips angusticeps Uzel). The results showed that at an application rate of 3.0 L/ha, CropGuard reduced thrips density by 87.4%, which is comparable to the reference (84.1%). At a rate of 2.5 L/ha, the efficiency was 82.6%. No phytotoxicity or negative effects on beneficial entomophages were observe
Entomofauna Of Plants Of The Genus Cerasus (Prunus) And Their Role In The Agroecosystem
No full textThis 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
Irrigation issues in Uzbekistan (1950-1990)
No full textThe article analyzes the policy of the centre of the further strengthening mono cultural clap in Uzbekistan that in undertaken measures on building of large irrigation canals and pumping stations in the Republic on the basis of archival sources and historical materials in 1950-1990. Therefore, the process of reclamation and irrigation of lands in Karshi and Mirzachul as well as, organization of districts and state farms in these areas specialized to cotton - growing on the principles of cotton monopoly policy of the Soviet government and increase of provision of cotton to the Centre and its negative results are elucidated with the help of main historical sources. Besides, in the research the author studied the reclamation of virgin lands in Uzbekistan and the history of state farms organized in the new reclaimed land
Meat Productivity Of Karakul Rams Of Different Colors
No full textThe 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 weregive
Methods Of Applying Herbicides Against Weeds Around The Field
No full textThe 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 measure
Useful Properties and Phenology of The Blanket Plant
No full textThis article is one of the research results devoted to the study of the systematics, geographical distribution and bioecology of the species of Sassik carpet, which have been acclimatized in the territory of our Republic in the last century, have medicinal and food value. The root of this plant is the flower stem and The body of the fruit has healing properties. The substance in its juice contains substances with high physiological activity
Aydar-Arnasoy Lake System, Tuzkon Lake Chavok Fish. Ecological Characteristics Of The Aral Chavok Fish (Rutilus Rutilus Aralensis Berg)
No full textToday, the growing need for food on a global scale requires the efficient use of the biological potential of inland water bodies, including the rational use of fish stocks, as well as the potential of fish farming and fishing facilities. Due to its geographical location, Uzbekistan is separated from the oceans and seas of the world, due to which its ichthyofauna is in a very poor condition, that is, the list of fish breeding and fishing facilities is very short. The fish facility can be expanded at the cost of migration, but there are certain limits in this regar
Biological and decorative properties of juniper virginiana, used in landscaping roads and streets of Tashkent
No full textJuniperus virginiana has a pyramidal branch, which in its natural state forms a branched and sparse branch. For landscaping purposes, it is necessary to artificially shape tree branches. In terms of the density of its branches, juniper virginiana belongs to the group of compact trees
Symptoms of soil salinity and measures to combat it
No full textSoil Salinization Causes & How To Prevent And Manage It. Salinization of soil negatively impacts plant development and induces land degradation. Saline earths show lower agricultural productivity, worsen farmers’ wellbeing, and the economic situation in the region. Managing soil salinity at early stages helps to reverse it. However, heavy contamination leads to complete loss of farmlands and desertification due to the negative effect of salinity on soil properties