Volume 02 Issue 12-2022
47
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
12
Pages:
47-51
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
ABSTRACT
In the article presents results of analysis of inheritance and variability of some agronomic valuable traits in hybrids
obtained with participation of cotton varieties that differ sharply in origin. Studied plants
Ғ
1, it was found that
complete dominance of unlimited type of branching in
Ғ
1, effect of heterosis, complete dominance and intermediate
inheritance depending on the genotype of the parental forms according to traits of precocity and weight of 1000
seeds. In the inheritance of fiber length in F2 hybrids, a wide range of variability was revealed and a markedly high
variability in interspecific hybrids compared to simple hybrids. From F3Sultan x Surkhan-14 combination were selected
and recommended families for breeding.
KEYWORDS
Cotton, genotype, hybrid, dominance, heterosis, inheritance, variability, recombinant, agronomic traits.
INTRODUCTION
Research Article
INHERITANCE AND FORMATION OF SOME ECONOMICALLY VALUABLE
TRAITS IN COTTON HYBRIDS F1, F2 AND F3
Submission Date:
December 20, 2022,
Accepted Date:
December 25, 2022,
Published Date:
December 30, 2022
Crossref doi:
https://doi.org/10.37547/ajahi/Volume02Issue12-10
G.N.Narkizilova
National University Of Uzbekistan Named After Mirzo Ulugbek, Uzbekistan
M.S. Mirakhmedov
National University Of Uzbekistan Named After Mirzo Ulugbek, Uzbekistan
S.G.Boboev
National University Of Uzbekistan Named After Mirzo Ulugbek, Uzbekistan
Journal
Website:
https://theusajournals.
com/index.php/ajahi
Copyright:
Original
content from this work
may be used under the
terms of the creative
commons
attributes
4.0 licence.
Volume 02 Issue 12-2022
48
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
12
Pages:
47-51
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
In the development of the country’s cotton growing,
much attention is paid to the creation of early,
productive, resistant to diseases and pests of cotton
varieties with high rates of economically valuable traits
and fiber quality.
In cotton genetics, each method has its own
advantages. Positive results can be obtained using
both the intraspecific hybridization method and the
use of interspecific hybridization.
In enriching the genotype of created varieties with
unique traits, interspecific hybridization involving wild
and ruderal forms is one of the main methods of
modern genetics and breeding [2,3].
Each type of cotton has its own unique characteristics
and properties. The effective use of these species
makes it possible to combine unique traits in one
genotype. So, in the studies of D.A. Musaev [5], M.F.
Abzalov [1], the patterns of inheritance of economically
valuable traits of cotton were studied and polygenic
control of quantitative traits was established, and the
possibility of combining positive traits in one genotype
and the selection of forms with a combination of these
features.
RESEARCH METHODS
The studies used methods of intraspecific and
interspecific hybridization. Using these methods,
hybrids were obtained with the participation of
varieties of different origin and with a sharp difference
from each other. The experiment, phenological
observations and laboratory analysis were carried out
according to the generally accepted methodology.
Mathematical analysis of the obtained results was
carried out according to B.A. Dospekhov [4].
Conditionally designated form K-28 isolated from a
complex hybrid
Ғ
1(
Ғ
1G.thurberii Tod.
х
G.raimondii
Ulbr.)
х
G.arboreum L.
RESEARCH RESULTS
As you know, the productivity of a plant is a complex
trait, consisting of a number of its constituent
elements. The main elements of cotton productivity
are such characteristics as the number of bolls per
plant, the weight of raw cotton per bolus and the
weight of 1000 seeds. Many scientists have studied
inheritance, variability and the formation of these
traits, in particular D.A. Musaev, (1979), M.F. Abzalov,
(1991), S. Boboev (2017).
In our studies, we studied the inheritance of the weight
of raw cotton in one box and the weight of 1000 seeds
in F1 hybrid combinations obtained with the
participation of varieties and accessions with different
genetic backgrounds.
In terms of the weight of raw cotton in one box, the
parental indicators were more than 6 g, families O-107-
12 (7.0 g), O-160-
71 (6.8 g) and varieties “Baraka
-
79”
had especially high rates. (6.6 g) and SP-1303
(compressed form, 6.6 g). Only the L-282-85 line had a
slightly lower indicator (5.0 g.).
In F1 hybrids obtained with their participation,
dominance and intermediate inheritance were noted.
In the hybrid combinations F1 O-160-71 x Baraka-79 and
F1 L-282-85 x L-1380, the average value of the trait was
in the range of indicators of parental forms, i.e.
intermediate inheritance is established. Average
indicators of hybrids F1 SP-1303 x L-282-85 (6.8 g), F1 O-
107-12 x L-282-85 (7.3 g) and F1 O-87-
91 x “Sakhovat”
(7.4 g) were much higher than those of the parental
forms, which indicates the manifestation of the effect
of heterosis (hp=1.6; 1.3; 7.0, respectively) (Table 1).
Volume 02 Issue 12-2022
49
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
12
Pages:
47-51
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
Among the parental forms, the SP-1303 variety
(compressed form) of 140 g had the highest average
weight of 1000 seeds, and the L-282-85 line (118 g) had
the lowest. Also high results were shown by families O-
107-12 (136 years old) and O-87-91 (134 years old).
Table 1
Inheritance of some elements of productivity in hybrids F1
№
Material
n
Weight of
raw cotton
1 box. (G.)
hp
Weight of
1000 seeds
(g).
hp
1 Т-282-85
20
5,0
±
0,3
118
±
1,3
2 Baraka-79
20
6,6
±
0,3
132
±
1,6
3 SP-1303
20
6,4
±
0,2
130
±
1,2
4 T-1380
20
6,5
±
0,1
130
±
1,8
5 О-107-12
20
7,0
±
0,4
136
±
1,5
6 О-87-91
20
6,5
±
0,3
134
±
1,3
7 О-160-71
20
6,8
±
0,2
132
±
1,4
8 SP-1303 (compressed form)
20
6,6
±
0,3
140
±
1,3
9 Sakhovat
20
6,2
±
0,1
130
±
1,2
10 Ғ
1
Т-282-85хT-1380
50
6,1
±
0,4
2,0
136
±
2,4
0,46
11 Ғ
1
СП-1303хТ-282-85
50
6,8
±
0,5
1,3
132
±
2,5
1,6
12 Ғ
1
О-107-12хТ-282-85
50
7,3
±
0,4
0,9
135
±
3,4
1,3
13 Ғ
1
О-87-91х Sakhovat
50
7,4
±
0,6
5,0
142
±
3,2
7,0
14 Ғ
1
О-160-71хBaraka-79
45
6,7
±
0,5
1,0
133
±
2,5
0,1
15 Ғ
1
СП-1303 (condensed
form) x Baraka -79
50
6,8
±
0,3
1,0
140
±
3,1
0,2
The indicators of F1 hybrids by weight of 1000 seeds
were in the range of 132-140 g. A relatively low result
was noted for F1 O-1303 x L-282-85 (132 g.), a high result
for F1 O-87-
91 x “Sakhovat” (142 g.). In the hybrid
Volume 02 Issue 12-2022
50
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
12
Pages:
47-51
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
combinations F1 O-107-12 x L-282-85 and F1 SP-1303
(form 2) x “Baraka
-
79”, the dominance of the parental
form with a high indicator of the trait was revealed, and
positive heterosis was noted in the remaining 4 hybrid
combinations. Hybrid combinations F1 L-282-85 x L-
1380 (hp=2.0) and F1 O-87-
91 x “Sakhovat” (hp=5.0)
exceeded the parental forms by 6-18 g.
In general, F1 hybrid combinations according to the
characteristics of the weight of raw cotton in one box
and the weight of 1000 seeds have established
intermediate inheritance, complete dominance and
heterosis, depending on the genotype of the parental
forms. The established patterns in the inheritance of
these traits show the possibility of isolating
recombinants that combine large boxes and a high
mass of 1000 seeds.
Fiber length. The length of the fiber is one of the most
important features that determine the quality of the
fiber. We studied the inheritance of this trait in
intraspecific and interspecific hybrids F2 and F3 with
the participation of species forms G.hirsutum L. and
G.barbadense L.
Among the parental forms, the variety “Surkhan
-
14”
(37.8 mm) had the highest indicator of fiber length, and
the lowest was the variety “Sultan” (34.0 mm). The
fiber length of other parental forms was in the range of
34.1-35.2 mm. The average fiber length in the
intraspecific hybrid F2 “Jarkurgan” x “Omad” ranged
from 34.5 mm, and in F2 “Sultan” x SP
-1303 34.8 mm.
Indicators of the coefficient of variability were V=7.34%
and V=8.61%, respectively.
The interspecific hybrid F2 “Sultan” x “Surkhan
-
14”
had
an average fiber length of 36.2 mm. It was noted that
the location of plants in the middle and right classes of
the variation series was influenced by the genotype of
the paternal variety “Surkhan
-
14”. Plants with a fiber
length of 39-41 mm were split off. In combinations F2
(F1K-28) x C-4727 and F2 (F1K-28 type arbor.) x Omad,
the average fiber lengths were 34.5; 34.6 mm
respectively, i.e. were in the range of parental forms.
Despite this, left-and right-sided transgressions were
revealed in interspecific hybrids. The degree of
variability of interspecific hybrids was V=10.18%,
V=12.05% and V=13.6%, respectively, and was
significantly higher than that of intraspecific hybrids.
The fiber lengths of the intraspecific F3 hybrids were
almost the same, i.e., 34.6; 34.7 mm. The plants of both
hybrid combinations were located in 6 classes of the
variation range, from 31.1-32.0 mm to 36.1-37.0 mm, the
degree of variability was V=5.21 and V=5.89%,
respectively (Table 2).
Table 2
Formation of fiber length in intraspecific and interspecific hybrids F3
№
Parent forms and hybrids F
3
n
M ± m
V %
Parent forms
1. Sultan
35
33,9±0,30
3,58
Volume 02 Issue 12-2022
51
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
12
Pages:
47-51
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
2. Omad
45
34,8±0,28
3,32
3. С-4727
34
34,3±0,23
2,86
4. Surkhan-14
30
37,8±0,25
2,94
5. Jarkurgan
42
35,2±0,30
3,94
6. SP-1303
43
35,0±0,35
4,06
Intraspecific hybrids
7 F
3
Jarkurgan х Omad
41
34,7±0,36
5,21
8 F
3
Sultab х SP-1303
42
34,6±0,41
5,89
Interspecific hybrids
9 F
3
(F
1
К- 28) x С-4727
54
34,0±0,42
7,09
10 F
3
(F
1
К- 28 type arbor.) x Omad
63
34,1±0,38
7,25
11 F
3
Sultan x Surkhan -14
47
36,3±0,61
10,34
In interspecific hybrids, in particular in the combination
F3 “Sultan” x “Surkhan
-
14” (x=36.3 mm), the variability
was higher (V=10.34%) than in intraspecific hybrids.
Interspecific hybrids F3 (F1K-28) xS-4727 and F3 (F1K-28
type arbor.) x “Omad” had an average value of 34.0
and 34.1 mm, respectively.
CONCLUSION
The results obtained make it possible to conclude that
the genotypes of parental forms involved in
intraspecific and interspecific crossings significantly
affect the inheritance and variability of the fiber length
trait. From the interspecific hybrid combination F3
“Sultan” x “Surkhan
-
14” unique families with a fiber
length close to the species G. barbadense L were
isolated and recommended for breeding.
REFERENCES
1.
Abzalov M.F. Gossypium hirsutum L. Gene
interactions in cotton. Tashkent, Science, 2010. P.6-
68.
2.
Arutyunova L.G. etc. //Biology of cotton.-Tashkent,
1980. -P. 79.
3.
Boboev S.G., Muratov G.A., Namazov S.E. Synthesis
of bovine intergenomic hybrids and the effect of
intergenomic
hybridization
on
breeding
//Proceedings of the scientific-practical conference
“The current situation and development p
rospects
of the field of selection and breeding of agricultural
crops”, Tashkent, 2015. P.111
-113.
4.
Armor B.A. Methods of field experience.
Moscow,1985. P.126-145.
5.
Musaev D.A. Genetic collection of cotton and
problems of trait inheritance. - Tashkent, Science,
1979.- P. 164.
