Online ISSN: 2515-8260

Keywords : cotton

Main directions of cotton breeding

Zeynalova Aytan Ilham , Hasanova Aynur Oruj , Isayeva Dunya Ali, Musayeva Sevinj Elshad, Aslanova Dilbar Hasanali

European Journal of Molecular & Clinical Medicine, 2022, Volume 9, Issue 7, Pages 8008-8015

The rich initial materials collected in the selection process allow the creation of intensive cotton varieties. Organological evaluation of complex economic indicators, resistance to wilt, drought tolerance, seed oil content, botanical morphological features, and degree of phenotype similarity has been performed in hybrid, selection, and sorting materials at all stages of the selection process. Extensive research is being conducted to create new cotton varieties that are tolerant to all kinds of extreme conditions and have more potential than their predecessors. 
Highly productive cotton varieties Ganja-110, Ganja-114, Ganja-132, Ganja-160, and Ganja-182 have been developed as a result of directional selection. These fast-growing varieties with high fiber yield and high-tech quality were tolerant to wilt disease and cultivated on farms. Their initial seed growing work was started, original and superelite seeds were prepared

Green Manure Crops Effects On Cotton Growth, Development And Productivity At Different Terms

Kenjaev yunus; jabbarov zafarjon; makhammadiev samad; makhkamova dilafruz; Turdibaev damir; Oripov razzak

European Journal of Molecular & Clinical Medicine, 2021, Volume 8, Issue 2, Pages 235-246

If in the control-green manure without crop experiment variants, the plant height was
80.6-79.1 cm, the yield horn was 14.2-14.1 pieces, the average joint spacing of the main
stem was 4.1-4.3 cm, the main stem thickness was 1.78-1.76 cm, when green manure crops
were applied, the agronomic soil properties and characteristics were positive for the plant,
coordinated the cotton growth and development, the plants were found to be relatively
vigorous and healthy growing and developing. This pattern was repeated in all
experimental years, and the data were observed in an analogous manner.
When green manure crops were applied in summer and autumn, the cotton
verticillium wilt incidence was reduced. This condition was observed throughout the
growth period. This, barley acted like rapeseed. For example, in the summer control-green
manure cropless variant, 4.9% of cotton plants were infected with verticillium wilt on July
15, 9.3% on August 1, and 13.3% on August 15, pea variant 4.5; 8.1; 12.4%, 3.8; 7.2;
11.8% in the chick-pea variant, respectively, raps variant 2.4; 5.1; 8.3%, barley variant was
2.7; 5.3; 8.9%.
In particular, in the fall, the control-green manure without crop variant was 5.8%
on July 15, 10.2% on August 1, and 14.8% on August 15, while the pea variant was 5.28.9;
13.1%, respectively; chick-pea variant was 4.8; 8.6; 12.1%, raps variant was 2.6; 5.3; 8.6%,
and 3.0; 5.8; 9.3% in the barley variant.
In the control-green manure cropless experiment variant, the yield was 35.1s/ha,
while in the green manure management variant 5.5-8.6 s/ha was obtained. In the
experiment, the highest yield (43.7 s/ha) and the most reliable additional yield (8.6 s/ha)
were obtained in the raps planted variant as a green manure crop, 42.8; 40.8 and 40.6 s/ha
yields were observed in barley, chick-pea and pea variants planted as green manure crops,

Antibacterial Finishing and Dyeing Affinity Enhancement of cellulose-based fabrics via pre-treatment by chitosan nanoparticles treatment

Fatma A. Mohamed; Maysa M. Reda

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 10, Pages 2378-2392

Chitosan nanoparticles were prepared as green antibacterial finishing material and enhance antimicrobial activity of cellulose-based fabrics such as cotton and viscose. Two new bifunctional dye Bis (monochlorotriazine) (MCT) and hetero bifunctional (SES/MCT) reactive dyes have been prepared in previous work. Dimedone moiety (5,5-Dimethylcyclohexane-1,3-dione) and applied in cellulose-based fabrics with various chitosan nanoparticles concentrations imparting them antimicrobial activity. In this work the effect of chitosan nanoparticles on dye ability of cellulose-based fabrics were studied from evaluation of the colour strength expressed in K/S values of the dyed fabrics at different concentration of chitosan nanoparticles and the two synthesized used dyes. Results showed that chitosan nanoparticles treated cellulose-based fabrics have higher affinity towards dyeing than untreated cellulose-based fabrics. Also, the antimicrobial properties of the treated fabrics were higher than that of untreated fabrics and give higher exhaustion without using any salts and alkalinity. So, chitosan nanoparticles exhibit cellulose based fabrics high antimicrobial and having dyeing affinity than untreated one. Also, treated dyed fabrics showed very good to excellent fastness properties.


Mukhamadkhan Khamidov; Khasimbek Isabaev; Ilkhom Urazbaev; Utkir Islamov; Aziz Inamov; Zokhid Mamatkulov

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 2, Pages 1639-1648

Research in the 80s of the XX century aimed at changing the hydromodular
zoning of irrigated lands of the Khorezm oasis in Uzbekistan, the distribution of irrigated
lands by hydromodular regions and the definition of scientifically based irrigation regimes
for cotton in each hydromodule region. This article presents the results of scientific
research on the implementation of hydromodular zoning of irrigated lands of Khorezm
region, the distribution of irrigated lands by hydromodular regions and the definition of
scientifically based irrigation regimes for cotton in the main hydromodular regions of
Khorezm region. Moreover, it provides information on the study of hydrogeological
conditions, the definition of irrigated lands in the new hydromodular areas of the oasis.
Irrigated lands of Khorezm region belong to one soil-climatic zone - desert zone, three soilameliorative
areas within this zone. For the first time electronic distribution of irrigated
lands of Shоvоt and Gurlan districts of Khorezm region on the basis of geographic
information system (GIS) technology, using the data of soil-lithological sections and
observational wells maps were created.
When irrigating cotton in the most common hydromodule regions VII, VIII and IX in the
region cotton, while maintaining the pre-irrigation the soil moisture at the level of 70-80-
60% LSMC (lowest soil moisture capacity), and cotton is grown at 3856 m3 / ha (VII), 2789
(VIII) and 2203 m3 / ha (IX) irrigated according to seasonal irrigation norms; 35.0, 38.9
and 39.8 С/ha of cotton, with a minimum of one quintal for growing cotton: 55.4; 71.7 and
110.2 m3 of river water is consumed.


М.Kh. Khamidov; K.T. Isabaev; I.K. Urazbaev; U.P. Islomov

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 2, Pages 1649-1657

The problem of global climate change is relevant to the human agenda, not
only because of the average annual temperature rise on the planet, but also because of
changes in the entire geosystem, rising global oceans, melting ice and permanent glaciers,
increasing uneven rainfall, changing river flow regimes and climate instability. other
changes involved.The article presents the results of scientific research on hydromodular
zoning of irrigated lands of Khorezm oasis and scientifically based irrigation regimes for
cotton in the main hydromodular regions of Khorezm oasis and study of soil and
hydrogeological conditions of the oasis, new hydromod Inclusion of observation wells for
monitoring of groundwater level and mineralization dynamics in ArcGIS program,
interpolation of groundwater surface, creation of electronic digital map of soil mechanical
composition, hydromodule using raster calculation panel based on groundwater level and
soil mechanical composition information on the formation of the zoning layer.

Technological Quality Indicators Of Cotton Yield And Fiber Of Uzpiti-201 Cotton Variety.

S.B. Mamadalieva; Z.M. Jumaboev

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 3, Pages 2775-2780

UzPITI-201 cotton variety seeds were sown under a transparent film on March 15-25, 155, 4 thousand seedlings per hectare were left and mineral fertilizers were applied at N180Р125К90 kg/ha rate and also in the variant irrigated in the optimal 70-75-60% order compared to LFMC, i.e. due to the soil conditions formed under the positive influence of the transparent film, the highest yield was 41,4 ts/ha, an increase in the cotton fiber technological quality was observed, along with the additional cotton yield cultivation of 5, 6-9,3 s per hectare compared to the control options planted in seeds double row and single row in the usual open method


Anvar Djuraev; Bozorova Farida; Zuhritdinov Alisher; Mukhamedjanova Sabrina; Mavlonova Iroda; Tursunova Gulbahor

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 2, Pages 442-454

The article presents the experimental results of a new composite ring drum that
cleans cotton of small impurities The results of a full-factor experiment of the
recommended composite spiked drum with an elastic element are presented. The
boundaries of the input factors and the levels of their change are given. The planned
central composite experimental matrix was constructed, the calculations were performed
on the basis of the constructed table, and a regression equation was obtained that
determines the cleaning effect. Dependence graphs were obtained for changing the
number of revolutions of the drum, changing the distance between the spikes and the
mesh, as well as changing the surface of the mesh, which affect the cleaning effect. From
the analysis of the graphs, the optimal values of the composite spiked drum are shown



European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 7, Pages 5063-5076

This article presents data on agrotechnical factors for the formation of a biocenotic complex of phytonematodes of agrocenosis of cotton and alfalfa. Also the dependence of the formation of fitonematodes communities on the value of agrocenoses of alfalfa and cotton on their surrounding ecosystems is determined, the role of the latter as a place of reservation and the settlement of certain species is determined, the significance of organic – mineral fertilizers in the accumulation of pytonematodes in the soil of agrocenoses.
Agrocenoses are greatly influenced by the formation of the phytonematodes community by soil factors and agro-technical factors in agrosenosis. The formation of the biocenotic complex of phytoenomatodes of agrosenoses is influenced by agro-technical factors and the environmental ecosystems that surround them. be surrounded by the surrounding ecosystems The laws of the ecosystem include the accumulation and distribution of parasitic species in agrosenosis, the deep processing of organic mineral fertilizers in the soil, which results in the accumulation of phytonematodes in agrosenosis.

Theoretical And Practical Study Of The Process Of Cotton Separation In Mobile Device

Rustam Muradov; Azamat Abrurazzokovich Kushimov; Yuldasheva Mavluda Turamurodovna; Yuldashev Khurshid Hazratkulovich; Master Mashkhura Salomova

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 6, Pages 3006-3015

This article examines the issues of increasing the efficiency of the moving separator, which is the main working part of the device used in the transportation of cotton by air, in ginneries.


Askarov Kamoliddin; Musayev Iskandar

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 3, Pages 3082-3089

The article illustrated the geochemical barriers in the soils and the radial double-sided geochemical barriers formed in the irrigated meadow soils of Central Fergana. The migration and accumulation of chemical elements and substances in these barriers are illuminated on the basis of geochemical spectral formulas.
And also, the effect of geochemical barriers on the yield of agricultural crops (cotton) was studied.


Khodjiyev Muksin; Abbazov Ilkhom; Makhkamov Iqbol; Karimov Javlon; Rajapova Marguba

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 2, Pages 508-515

This article describes the changes in fiber waste from the technological flow in ginning plants, how much it changes in the stages of the technological process. The dust released in the drying and cleaning shop is only 5-7 mg/m3 of dust, which is less than the air in the building where the drying equipment is located. Large dispersed dust particles separate even at high humidity and sink to the surface of the building without being able to spread. In drying units, dust emitted in conjunction with an atmospheric drying agent causes discomfort. Although this dust is coarsely dispersed, it escapes in the dryer along with the air stream and settles near the roof of the building and near the drying shop. The amount of dust emitted was found to be 500-600 kg per day. In the ginning unit, the released dust is released into the atmosphere from the cotton pneumatic transport system, which is formed in the air in the drying and cleaning shop, as well as in the cleaning of cotton in the cleaning machines. It is a dusty fiber with less mineral fractions. The fine fractions are mainly composed of crushed dirty particles. It was found that only one ginnery produces 150-350 tons of fibrous waste per year, depending on the type of cotton, 5-6 tons of non-recyclable waste, 70-90% of non-recyclable waste is organic waste. It serves as a raw material for the use of waste as feed for livestock in agriculture. The results of scientific research conducted at the enterprise “Zarbdor Pakhta Tozalash” JSC in Jizzakh region to determine the amount of waste from ginneries have been processed.


DSc. Kurbonov A.Y .; prof.Avtonomov V.A .; prof. Axunov A.A .; DSc.HashimovaN .

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 2, Pages 1044-1051

In the world's cotton-growing countries, cotton is cultivated on the territory of 89 countries, on a total area of more than 30 million hectares, from which more than 22.4 million tons of cotton fiber are obtained. Today, there are problems in the production of high-quality cotton fiber yield. One of these problems is pathogens that cause significant damage to cotton production, with losses in the world amounting to 12-15%. In the world, considerable attention is paid to the study and control of the pathogen Verticillium dahliae Klebahn, which affects cotton.
The problem of breeding wilt-resistant varieties of cotton is complicated by the search for new methods and donors of resistance to the pathogen. It is necessary to improve the method of selection of parent pairs during hybridization and qualitative assessment of interspecific hybrids at the early stages of the breeding process in order to increase the efficiency of breeding, speed up the process of introducing new varieties of cotton into production.The selection must be carried out on the basis of physiology and biochemistry of signs of resistance of the initial breeding material. The initial stage of selection should be based on test signs of resistance, which are associated with the catalytic activity of some enzymes involved in the formation of phytoimmunity against fungal infections (peroxidase, phenylalanine ammonialyase, polyphenol oxidase).The greatest interest of researchers is attracted by protective mechanisms, including the processes of lignification of cell walls and the biosynthesis of phenolic phytoalexins. These mechanisms simultaneously create a mechanical and chemical barrier to the penetration of fungal structures into the cell, preventing the spread of the pathogen.

Experimental Results On Justification Of Parameters Of A Cotton Cleaner With A New Drive Design

Dilrabo Мamatova; Anvar Djuraev; Alisher Mamatov; Аbbos Nematov

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 1, Pages 3562-3570

The article provides an analysis of the state of technical equipment for cleaning fibrous materials, including raw cotton from fine and coarse litter. The scheme of the drive of the cotton-cleaning unit including belt drives with eccentric tension rollers with elastic elements is presented. The results of experimental studies of a belt drive with variable gear ratio, including a composite eccentric tension roller, used in the drive of a cotton-cleaning unit of installation cotton ginning complex (ICGC), are analyzed. On the basis of full-factor experimental studies, the optimal values of the drive parameters have been determined, which allow obtaining a high cleaning effect.