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729
THE INFLUENCE OF SOWING DATES ON PRODUCTIVITY AND
TECHNOLOGICAL QUALITY INDICATORS OF SOFT SPRING WHEAT VARIETIES
Berdinazar Khudoynazarovich Jananov
Karshi State Technical University
Annotation:
The article describes the scientific basis for the selection of drought-resistant wheat
varieties based on the study of the processes taking place in the southern region of
Karakalpakprovince.
Кalit so‘zlar:
maxsuldor genlar, geografik, duragay organizm, qurg‘oqchilik, xudud, chidamli
navlar, biotik, abiotik streslar,seleksiya jarayoni, immunitet.
Annotatsiya:
Maqolada bahorgi bugdoy navlarini yaratishning seleksion ilmiy asoslari shimoliy
mintaqa Qoraqalpog`iston viloyati sharoitida kechadigan jarayonlarni o'rganish asosida
yoritilgan.
Annotatsiya:
В статье описаны научные основы выбора весенных сортов пшеницы на
основе изучения процессов, происходящих в регионе Каракальпакской области.
Ключевые слова:
продуктивные гены, географические, гибридный организм, засуха,
территория, устойчивые сорта, биотические, абиотические стрессы, селекционный
процесс, иммунитет.
Keywords:
productive genes,geographical,hybrid organism, drought, territory, resistant varieties,
biotic, abiotic stresses, selection process, immunity.
Under the conditions of the Republic of Karakalpakstan, experiments were conducted to study
the valuable agronomic traits of spring soft wheat. The research was carried out in the
competitive variety testing nursery by sowing spring soft wheat varieties at early spring dates.
According to the results, the shortest pre-heading period was observed in the varieties Kr-
SpR2014-6, Kr-Sp/2010/59, and Kr-SpR2014-9, which were found to be 2–4 days shorter than
the standard variety Sanzar-4.
The "heading-to-maturity" period for spring soft wheat ranged from 31 to 39 days. In our study,
the varieties Kr-SpR2014-6, KrT-SpR2014, Kr-SpR2014-22, and Kr-SpR2014-4 had the shortest
grain-filling periods, lasting 31–32 days, which was shorter compared to the standard Sanzar-4
variety. The total vegetation period for the spring wheat varieties ranged from 103 to 110 days.
The earliest-maturing varieties — Kr-Sp/2010/59, Janub Gavhari, and Kr-SpR2014-10 — were
identified as early-maturing and selected for further consideration.
Growing season of varieties in the competitive spring wheat variety testing nursery
№
Variety name
Pre-heading
Heading-
ripening
Vegetation
period, days
1
SANZAR-4
77,0
33,0
110,0
2
HAZRATI BESHIR
75,0
34,0
109,0
3
JANUB GAVHARI
70,7
34,0
104,7
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4
Kr-Sp/2010/59
69,3
33,7
103,0
5
ATTILLA-7
76,0
34,0
110,0
6
Kr-SpR2014-2
72,0
38,0
110,0
7
Kr-SpR2014-3
74,0
33,0
107,0
8
Kr-SpR2014-4
76,0
32,0
108,0
9
Kr-SpR2014-6
76,0
31,0
107,0
10
KrT-SpR2014
74,7
31,3
106,0
11
Kr-SpR2014-8
72,0
33,3
105,3
12
Kr-SpR2014-9
75,0
33,3
108,3
13
Kr-SpR2014-10
70,3
33,3
103,7
14
Kr-SpR2014-13
68,0
37,0
105,0
15
KrJ-SpR2014
77,0
33,0
110,0
16
Kr-SpR2014-15
70,0
35,0
105,0
17
Kr-SpR2014-19
72,0
37,0
109,0
18
Kr-SpR2014-20
68,0
39,0
107,0
19
Kr-SpR2014-21
76,0
33,3
109,3
20
Kr-SpR2014-22
74,3
32,0
106,3
20
17
Min
68,0
31,0
103,0
Mak
77,0
39,0
110,0
Sred
73,2
34,0
107,2
When analyzing the grain quality indicators from the competitive variety testing nursery, the
standard variety Sanzar-4 showed the following average results: protein content in the grain was
14.5%, gluten content was 29.2%, the weight of 1000 grains was 36.6 grams, and the grain test
weight was 791.5 grams per liter.
Technological quality indicators of grain
№ Variety name
protei
n
gluten
glassiness IDK moistur
e
1000
grain
weigh
t
Grain
nature,
gr/l
1
SANZAR-4
14,5
29,2
62,5
94,3 7,7
36,3
791,5
2
HAZRATI
BESHIR
14,4
28,8
64,3
84,5 9,4
33,8
813,7
3
JANUB
GAVHARI
14,6
29,2
61,0
94,2 9,7
36,2
751,0
4
Kr-Sp/2010/59
14,6
28,7
58,8
90,9 9,4
40,7
796,3
5
ATTILLA-7
14,2
29,1
60,3
86,0 8,0
34,7
787,4
6
Kr-SpR2014-2
14,4
28,2
61,7
95,1 8,0
38,4
792,8
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7
Kr-SpR2014-3
14,3
28,1
55,3
97,7 8,3
37,5
794,4
8
Kr-SpR2014-4
14,7
27,9
71,6
102,
8
8,7
35,0
798,8
9
Kr-SpR2014-6
14,6
28,0
52,3
96,0 8,5
38,0
769,0
10 KrT-SpR2014
14,5
27,5
66,7
95,2 9,7
33,5
751,0
11 Kr-SpR2014-8
14,6
28,6
46,7
91,6 9,7
34,4
783,7
12 Kr-SpR2014-9
14,3
28,7
53,5
93,1 9,3
35,1
727,7
13 Kr-SpR2014-10 14,5
27,7
63,5
86,0 9,3
35,4
783,7
14 Kr-SpR2014-13 14,2
27,8
48,7
99,5 8,5
36,9
776,2
15 KrJ-SpR2014
14,5
27,7
62,5
89,2 9,6
33,7
802,3
16 Kr-SpR2014-15 14,4
27,8
56,6
105,
0
7,9
35,6
774,9
17 Kr-SpR2014-19 13,8
28,2
55,4
95,7 8,4
38,8
776,6
18 Kr-SpR2014-20 14,1
28,7
46,7
108,
3
8,3
35,5
777,5
19 Kr-SpR2014-21 14,5
28,8
56,3
91,9 9,5
30,5
741,0
20 Kr-SpR2014-22 14,5
28,6
60,5
91,7 8,8
38,7
735,0
20
17
min
13,8
27,5
46,7
84,5 7,7
30,5
727,7
mak
14,7
29,2
71,6
108,
3
9,7
40,7
813,7
sred
14,4
28,4
58,2
94,4 8,8
35,9
776,2
Based on the grain test weight data from the experimental plots, the following values were
recorded for the highest-yielding spring soft wheat varieties: 741.0 g/l for Kr-SpR2014-21, 751.0
g/l for Janub Gavhari, 776.2 g/l for Kr-SpR2014-13, 802.3 g/l for KrJ-SpR2014, 794.4 g/l for
Kr-SpR2014-3, and 798.8 g/l for Kr-SpR2014-4.
The above-mentioned varieties are recommended for use in future breeding programs aimed at
developing high-quality spring soft wheat varieties. In addition, under the conditions of the
Republic of Karakalpakstan, the variety
KIA-3816
(selection line
Kr-SpR2014-19
), which
possesses highly valuable agronomic traits, was selected and submitted to the State Variety
Testing Commission.
References
:
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the yield of grain crops in the grain zone of Kazakhstan. Selinograd 1982.
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