American Journal Of Agriculture And Horticulture Innovations
24
https://theusajournals.com/index.php/ajahi
VOLUME
Vol.05 Issue06 2025
PAGE NO.
24-25
10.37547/ajahi/Volume05Issue06-05
Analysis Of Morphobiological Characteristics In Certain
Varieties Of Cotton
Dusmatova G.A.
Lecturer, Andijan State University, Uzbekistan
Kimsanova G.A.
Lecturer, Andijan State University, Uzbekistan
Sotvoldieva S.U.
Lecturer, Andijan State University, Uzbekistan
Khaitova Sh.D.
Lecturer, Termez State Pedagogical Institute, Uzbekistan
Sai Kiran Sharma
PhD Research Scholar, Department of Plant Genetics and Crop Improvement, National Agricultural Research Institute, Hyderabad, India
Received:
14 April 2025;
Accepted:
15 May 2025;
Published:
30 June 2025
Abstract:
In the development of early-maturing, high fiber-yielding, long-fiber, high-yield, and disease- and pest-
resistant cotton varieties, as well as in the identification of hybrids, it is essential to focus on studying their
morphobiological and agronomic characteristics. In this regard, the effective use of hybridization methods in
research is required.
Keywords:
Cotton, early-maturing, variety, hybrid, morphological, cotton weight per boll, weight of 1000 seeds.
Introduction:
After the independence of our country,
significant attention has been given to the selection of
agricultural crops.
Currently, all focus is directed toward the creation of
early-maturing, high-yielding, high-quality fiber,
disease- and pest-resistant cotton varieties. As a result,
while maintaining high productivity, the areas allocated
for cotton cultivation have been reduced, and plans are
in place to plant other crops.
In cotton genetics and breeding, it is crucial to utilize
forms that differ from each other based on their origin,
productivity, and other valuable agronomic traits. This
approach has been confirmed in the scientific research
of many scholars.
S. Mirakhmedov identified that the resistance of wild
Mexican cotton to verticillium wilt is inherited in its
hybrid offspring. As a result of his research, early-
maturing cotton varieties with high yield and fiber
quality, as well as resistance to wilt, were developed.
When creating Tashkent varieties, the Mexicanum
subspecies, which had brown-colored fibers, was used
for hybridization. In the offspring of these hybrids,
biotypes with white fibers were identified. It was also
established that the Mexicanum subspecies of cotton is
not only resistant to wilt, but also has high yield,
drought resistance, high fiber output, and fiber quality
[7].
The analysis showed that in the C-6524 variety of
cotton, 57-89% of the weight of cotton per boll is
determined by genes, and 11-43% is influenced by
American Journal Of Agriculture And Horticulture Innovations
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American Journal Of Agriculture And Horticulture Innovations (ISSN: 2771-2559)
external factors [6].
In the experiment, by using topcross hybridization, the
inheritance of major agronomic traits in F1 hybrids
from both the parental lines and varieties, as well as the
general and specific combining abilities of the parental
lines, were observed to differ from each other.
The analysis of the dispersion of the inheritance of
valuable traits, such as the number of bolls, the period
from germination to maturity, the cotton weight per
boll, fiber yield, fiber length, and plant height in the F1
hybrids, was conducted. The results of this analysis
were clearly identified [1].
According to the analysis of the results, in the second
generation, many agronomic traits deviated from the
indicators of the parent forms, thus expanding the
selection potential [2].
In research conducted by Akhmedov J.Kh. and
Mirzarasulov M., it was found that in the F2 hybrid
population, cotton yield was associated with boll
weight, number of bolls per plant, fiber yield, and fiber
length. It was determined that the yield was related to
the number of bolls per plant and boll weight. This
finding emphasizes the need to intensify breeding
research aimed at creating varieties with high boll
aggregation and large boll size. However, since the
correlation between yield and fiber output and length
was low, it was demonstrated that these traits
inherited independently in the F2 hybrids [3].
At the same time, it was established that fine-fibered
cotton is slower to mature, yields less, has rounder
bolls, and is more demanding in terms of temperature,
irrigation, and fertilization requirements compared to
medium-fibered cotton. Furthermore, it was found to
be more resistant to biological stresses, including
verticillium wilt, aphids, and thrips [3].In the research
by M.D. Nosirova, it was found that in fields where
mung beans were cultivated, cotton yield, along with
fiber yield, increased by 0.7
–
1.0%, and fiber length
increased by 0.6
–
1.6 mm compared to the control
variety.
After mung bean cultivation, cotton planting led to a
reduction in the incidence of wilt, and improvements
were observed in the technological quality indicators of
the fiber [4].
CONCLUSION
In summary of the literature review, it can be stated
that the new cotton varieties being developed today
are not only high-yielding, early-maturing, and
resistant to diseases, pests, and adverse environmental
factors, but also exhibit high fiber yield. Furthermore,
the fiber quality, including micronaire value, must meet
the requirements of the textile industry.
REFERENCES
1.
Amanturniev A.B., Boboev Y.A., Kim R.G.,
Khojamberganov N.M. Inheritance of major
agronomic traits in medium-fibered cotton
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Cultivation. 1997, No. 3, pp. 12-14.
2.
Amanturniev Sh.B. Effectiveness of inter-hybrid
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Tashkent, 1998.
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Akhmedov J.Kh., Mirzarasulov M. Evaluation of
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some
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Nosirova M.D. Scientific justification for the
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https://qomus.info/encyclopedia/cat-
m/mirahmedov-uz/
