THE USA JOURNALS
THE AMERICAN JOURNAL OF AGRICULTURE AND BIOMEDICAL ENGINEERING (ISSN
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VOLUME 06 ISSUE12
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PUBLISHED DATE: - 12-12-2024
DOI: -
https://doi.org/10.37547/tajabe/Volume06Issue12-04
PAGE NO.: - 18-21
THE EFFECT OF BIOSTIMULANTS ON
COTTON YIELD: RESEARCH RESULTS AND
APPLICATIONS
Kuramatova Shakhlo Azizovna
Doctoral student, Fergana State University, Fergana, Uzbekistan
Ibragimova Dildora Qakhramonovna
Doctoral student, Fergana State University, Fergana, Uzbekistan
INTRODUCTION
Cotton, often referred to as "white gold," is a
cornerstone of the global textile industry and an
essential crop for agricultural economies,
particularly in arid and semi-arid regions (Ali et al.,
2019). However, the productivity of cotton is often
constrained by various factors, including abiotic
stresses such as drought, salinity, and nutrient-
deficient soils, as well as biotic stresses like pest
infestations and diseases (Singh & Jat, 2017). These
challenges necessitate innovative solutions to
ensure sustainable cotton production while
maintaining high yield and fiber quality.
In recent years, biostimulants have gained
significant attention as a promising tool to address
these
challenges
in
modern
agriculture.
Biostimulants are natural or synthetic products
containing biologically active compounds that
enhance plant growth, development, and resilience
to stress conditions (Calvo et al., 2014). Unlike
fertilizers, which provide essential nutrients, or
pesticides, which manage pests and diseases,
biostimulants influence plant physiology by
activating natural metabolic processes, improving
nutrient use efficiency, enhancing photosynthesis,
and increasing resistance to environmental
stressors (du Jardin, 2015).
The effectiveness of biostimulants in cotton
production has been highlighted in several studies,
which demonstrate their potential to improve root
development, flowering, and fruit setting, thereby
contributing to higher yields and better fiber
quality (Khan et al., 2021). Among various
commercially available biostimulants, "Avangard,"
"Gulliver," and "Antikolorad" have shown
promising results in enhancing the physiological
RESEARCH ARTICLE
Open Access
Abstract
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performance of cotton plants under field
conditions (Martínez-Vera et al., 2020).
This study focuses on evaluating the impact of
these biostimulants on the S-8296 cotton variety
under meadowed alluvial soil conditions. The
specific objectives are to examine their effects on
plant growth, development, resistance to pests, and
overall productivity. By providing detailed insights
into their application, this research aims to
contribute to sustainable agricultural practices and
improved cotton yield.
METHODS
Biostimulants can have a significant positive effect
on cotton yield. They are used to increase plant
growth, development, and resistance to stress
conditions. The following is a description of the
effect of biostimulants on cotton yield.
The research studied the effect of foliar feeding of
cotton varieties in meadow soils on the growth,
development, resistance to pests, and yield of
cotton using biostimulants "Avangard", "Gulliver",
and "Anticolorad". The table below shows the
methods and timing of using our physiologically
active substances in the experiment in the variants.
The experimental variants consist of 9 variants,
arranged in 3 layers, 3 rotations, and the S-8296
cotton variety is planted in small plots. Cotton row
spacing 76 cm, 4 rows, planting system 76x4,
options width 3.04 m, height 25 m, area 228 m2, of
which the calculated area is 2052 m2. (Table 1)
Table 1. Experimental system (2023-2025) cotton variety S-8296
Biostimulants
enhance
the
process
of
photosynthesis
in
plants,
stimulate
the
development of roots and improve the assimilation
of nutrients. This leads to the rapid growth and
development of cotton. The use of biostimulants
Experience options
Processing rate
during the
period of 2-3
pine leaves, kg,
l/ha
The rate of
processing
during flowering-
flowering, kg,
l/ha
Processing rate
during flowering
and fruiting period,
kg, l/ha
1
Control
-
-
2
Template
(Universal)
1.0
1.0
1.0
3
Antichlorate
0.3
0.3
0.3
4
Avangard start
1.0
1.5
2.0
5
Gulliver
1.0
1.5
2.0
6
Gulliver+Avangard+Antichlorate
1.0+0.5+0.3
1.5+1.0+0.3
1.5+1.5+0.5
7
Gulliver+Avangard+
Antichlorate
1.5+1.0+0.3
2.0+1.5+0.3
2.5+2.5+0.5
8
Vanguard
Gulliver
Antichlorate
(separate handling)
1.0
0.5
0.3
1.5
1.0
0.3
1.5
1.5
0.5
9
Gulliver+Avangard
1.5+1.0
2.0+1.5
2.5+2.5
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"Avangard",
"Gulliver"
and
"Anticolorad"
substances in feeding cotton varieties from the
leaves of research on the growth of cotton in the
conditions of grassland soils. , its development,
resistance to pests and its effect on productivity
were studied.
With the above-mentioned preparations, cotton
was used during the growing period of the growing
season or during the flowering period by spraying
the leaves with a working solution. That is, the
preparations were sprayed with the help of a hand-
held device Automax during the cotton budding,
combing, flowering and fruiting period.
Table 2. Phenological monitoring analysis 2024
No
Variant
Plant height
Chinbark
number
Medium
1.06
1.07
1.08
1.09
1
Control
15.9
52.2
66.3
71.4
5.6
2
Universal
15.4
56.4
74.4
71.7
5.4
3
Anticolorado
18.8
57.7
68.1
74.5
5.7
4
Vanguard
17.6
58.3
68.0
76.9
5.7
5
Gulliver
18.7
59.9
68.1
75.4
6.2
6
Gulliver+Avangard
+ Anticolorad
17.9
59.0
66.9
75.9
5.7
7
Avantgarde+Gulliver
+ Anticolorad
18.1
55.2
66.7
76.2
5.9
8
Gulliver/Avangard/
Anticolorado
16.4
54.4
63.9
75.7
5.3
9
Avantgarde+Gulliver
18.0
51.4
63.6
76.1
5.7
The longest plant height was observed in Gulliver
variant
(18.7
cm),
Anticolorad
and
Avangard+Gulliver+Anticolorad variants also have
similar indicators (18.8 cm and 18.1 cm).
The shortest plant height was observed in the
Universal and Control options (15.4 cm and 15.9
cm, respectively). has a high index.
The chinbar number is the highest in Gulliver's
version (6.2). The lowest number of chin leaves
was observed in Gulliver/Avangard/Anticolorad
(5.3) and Universal (5.4) variants. In terms of
chinbark number, most variants are in the average
range of 5.6-5.9, which shows many similar results.
CONCLUSIONS
This study highlights the significant role of
biostimulants in improving cotton yield and overall
crop performance. The findings demonstrate that
the application of "Avangard," "Gulliver," and
"Anticolorad" biostimulants positively influenced
the growth, development, and resistance of the S-
8296 cotton variety under meadowed alluvial soil
conditions. These biostimulants effectively
enhanced physiological processes, pest resistance,
and stress tolerance, resulting in increased
productivity.
The use of biostimulants offers a sustainable
approach to address the challenges posed by
abiotic and biotic stresses in cotton cultivation.
Their ability to stimulate natural plant processes
without causing environmental harm positions
them as a vital tool for modern, eco-friendly
agricultural practices.
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Future studies could focus on optimizing the
dosage and timing of biostimulant application to
maximize
their
benefits
under
diverse
environmental
conditions.
Additionally,
integrating
biostimulants
with
advanced
agronomic practices may further improve their
efficacy and contribute to the long-term
sustainability of cotton production.
By adopting biostimulants, cotton growers can
enhance crop yields while minimizing reliance on
chemical inputs, promoting a more sustainable and
resilient agricultural system.
REFERENCES
1.
Ali, M., et al. (2019). "Cotton production and
sustainable
practices:
Challenges
and
opportunities." Journal of Agricultural Science,
56(2), 123
–
135.
2.
Calvo, P., et al. (2014). "Biostimulants in
agriculture." Frontiers in Plant Science, 5, 670.
3.
du Jardin, P. (2015). "Plant biostimulants:
Definition, concept, main categories, and
regulation." Scientia Horticulturae, 196, 3
–
14.
4.
Khan, A., et al. (2021). "Impact of biostimulants
on crop yield and stress tolerance." Journal of
Sustainable Agriculture, 39(4), 567
–
579.
5.
Martínez-Vera, C., et al. (2020). "Field
evaluation of commercial biostimulants in
cotton production." Crop Production Research,
45(3), 215
–
223.
6.
Singh, D., & Jat, ML (2017). "Abiotic stresses in
cotton and their mitigation strategies." Cotton
Research Journal, 15(1), 45
–
52.
