Abstract
Purpose: to determine the most rational seeding method and the optimal seeding rate of cotton seeds under irrigation under the agroclimatic conditions of the Rostov region. Materials and methods. The studies were conducted in 2022–2024 in the Rostov region on an experimental plot when cultivating the PGSSH 1 cotton variety. Biometric and phenological observations, yield records and statistical data processing were carried out. Results. It was determined that by the ripening phase, the highest values for cotton height, leaf area (LA) and dry matter accumulation on average over three years were achieved with the dotted seeding method and a seeding rate of 100 thousand pcs./ha – 99.1 cm, 20.9 thousand sq. m/ha, 5.63 t/ha, respectively. Thickening of crops to 140 thousand pcs./ha reduced the data on these indicators by the ripening phase to 90.2 cm, 17.2 thousand sq. m/ha and 4.56 t/ha, respectively. The best options for yield, fiber yield and 1000-grain weight were determined with the dotted seeding method and seeding rates of 100 and 120 thousand pcs./ha – 1.36 and 1.38 t/ha, 36.2 and 36 %, 103.8 and 101.8 g, respectively. Conclusions. According to all indicators, the best seeding method is dotted, and the optimal seeding rates are 100 and 120 thousand pcs/ha. But the nested seeding method with the same seeding rates should not be excluded, since an insignificant difference in yield between these options of 0.06 t/ha has been determined.
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Claims 11
Claim · model-written summary
The dotted seeding method at 100 thousand pcs./ha gave the highest cotton height (99.1 cm) by the ripening phase.
- Taxon
- cotton
Gossypium hirsutume0 - Material
- PGSSH 1e0
- Organ / stage
- ripening phasee1
- Treatment
- dotted seeding method and a seeding rate of 100 thousand pcs./hae1
- Outcome
- cotton heighte1
- Direction
- higheste1
- Value
- 99.1 cme1
- Comparator
- Thickening of crops to 140 thousand pcs./hae2
- Setting
- Rostov regione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The studies were conducted in 2022–2024 in the Rostov region on an experimental plot when cultivating the PGSSH 1 cotton variety”
e1“It was determined that by the ripening phase, the highest values for cotton height, leaf area (LA) and dry matter accumulation on average over three years were achieved with the dotted seeding method and a seeding rate of 100 thousand pcs./ha – 99.1 cm, 20.9 thousand sq. m/ha, 5.63 t/ha, respectively”
e2“Thickening of crops to 140 thousand pcs./ha reduced the data on these indicators by the ripening phase to 90.2 cm, 17.2 thousand sq. m/ha and 4.56 t/ha, respectively”
Claim · model-written summary
The dotted seeding method at 100 thousand pcs./ha gave the highest leaf area (20.9 thousand sq. m/ha) by the ripening phase.
- Taxon
- cottonGossypium hirsutume0
- Material
- PGSSH 1e0
- Organ / stage
- ripening phasee1
- Treatment
- dotted seeding method and a seeding rate of 100 thousand pcs./hae1
- Outcome
- leaf area (LA)e1
- Direction
- higheste1
- Value
- 20.9 thousand sq. m/hae1
- Comparator
- Thickening of crops to 140 thousand pcs./hae2
- Setting
- Rostov regione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The studies were conducted in 2022–2024 in the Rostov region on an experimental plot when cultivating the PGSSH 1 cotton variety”
e1“It was determined that by the ripening phase, the highest values for cotton height, leaf area (LA) and dry matter accumulation on average over three years were achieved with the dotted seeding method and a seeding rate of 100 thousand pcs./ha – 99.1 cm, 20.9 thousand sq. m/ha, 5.63 t/ha, respectively”
e2“Thickening of crops to 140 thousand pcs./ha reduced the data on these indicators by the ripening phase to 90.2 cm, 17.2 thousand sq. m/ha and 4.56 t/ha, respectively”
Claim · model-written summary
The dotted seeding method at 100 thousand pcs./ha gave the highest dry matter accumulation (5.63 t/ha) by the ripening phase.
- Taxon
- cottonGossypium hirsutume0
- Material
- PGSSH 1e0
- Organ / stage
- ripening phasee1
- Treatment
- dotted seeding method and a seeding rate of 100 thousand pcs./hae1
- Outcome
- dry matter accumulatione1
- Direction
- higheste1
- Value
- 5.63 t/hae1
- Comparator
- Thickening of crops to 140 thousand pcs./hae2
- Setting
- Rostov regione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The studies were conducted in 2022–2024 in the Rostov region on an experimental plot when cultivating the PGSSH 1 cotton variety”
e1“It was determined that by the ripening phase, the highest values for cotton height, leaf area (LA) and dry matter accumulation on average over three years were achieved with the dotted seeding method and a seeding rate of 100 thousand pcs./ha – 99.1 cm, 20.9 thousand sq. m/ha, 5.63 t/ha, respectively”
e2“Thickening of crops to 140 thousand pcs./ha reduced the data on these indicators by the ripening phase to 90.2 cm, 17.2 thousand sq. m/ha and 4.56 t/ha, respectively”
Claim · model-written summary
Thickening of cotton to 140 thousand pcs./ha reduced cotton height to 90.2 cm by the ripening phase.
- Taxon
- cottonGossypium hirsutume0
- Material
- PGSSH 1e0
- Organ / stage
- ripening phasee2
- Treatment
- Thickening of crops to 140 thousand pcs./hae2
- Outcome
- cotton heighte1
- Direction
- reducede2
- Value
- 90.2 cme2
- Comparator
- dotted seeding method and a seeding rate of 100 thousand pcs./hae1
- Setting
- Rostov regione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The studies were conducted in 2022–2024 in the Rostov region on an experimental plot when cultivating the PGSSH 1 cotton variety”
e1“It was determined that by the ripening phase, the highest values for cotton height, leaf area (LA) and dry matter accumulation on average over three years were achieved with the dotted seeding method and a seeding rate of 100 thousand pcs./ha – 99.1 cm, 20.9 thousand sq. m/ha, 5.63 t/ha, respectively”
e2“Thickening of crops to 140 thousand pcs./ha reduced the data on these indicators by the ripening phase to 90.2 cm, 17.2 thousand sq. m/ha and 4.56 t/ha, respectively”
Claim · model-written summary
Thickening of cotton to 140 thousand pcs./ha reduced leaf area to 17.2 thousand sq. m/ha by the ripening phase.
- Taxon
- cottonGossypium hirsutume0
- Material
- PGSSH 1e0
- Organ / stage
- ripening phasee2
- Treatment
- Thickening of crops to 140 thousand pcs./hae2
- Outcome
- leaf area (LA)e1
- Direction
- reducede2
- Value
- 17.2 thousand sq. m/hae2
- Comparator
- dotted seeding method and a seeding rate of 100 thousand pcs./hae1
- Setting
- Rostov regione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The studies were conducted in 2022–2024 in the Rostov region on an experimental plot when cultivating the PGSSH 1 cotton variety”
e1“It was determined that by the ripening phase, the highest values for cotton height, leaf area (LA) and dry matter accumulation on average over three years were achieved with the dotted seeding method and a seeding rate of 100 thousand pcs./ha – 99.1 cm, 20.9 thousand sq. m/ha, 5.63 t/ha, respectively”
e2“Thickening of crops to 140 thousand pcs./ha reduced the data on these indicators by the ripening phase to 90.2 cm, 17.2 thousand sq. m/ha and 4.56 t/ha, respectively”
Claim · model-written summary
Thickening of cotton to 140 thousand pcs./ha reduced dry matter accumulation to 4.56 t/ha by the ripening phase.
- Taxon
- cottonGossypium hirsutume0
- Material
- PGSSH 1e0
- Organ / stage
- ripening phasee2
- Treatment
- Thickening of crops to 140 thousand pcs./hae2
- Direction
- reducede2
- Value
- 4.56 t/hae2
- Comparator
- dotted seeding method and a seeding rate of 100 thousand pcs./hae1
- Setting
- Rostov regione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The studies were conducted in 2022–2024 in the Rostov region on an experimental plot when cultivating the PGSSH 1 cotton variety”
e1“It was determined that by the ripening phase, the highest values for cotton height, leaf area (LA) and dry matter accumulation on average over three years were achieved with the dotted seeding method and a seeding rate of 100 thousand pcs./ha – 99.1 cm, 20.9 thousand sq. m/ha, 5.63 t/ha, respectively”
e2“Thickening of crops to 140 thousand pcs./ha reduced the data on these indicators by the ripening phase to 90.2 cm, 17.2 thousand sq. m/ha and 4.56 t/ha, respectively”
Claim · model-written summary
The dotted seeding method with 100 and 120 thousand pcs./ha gave the best cotton yield (1.36 and 1.38 t/ha).
- Taxon
- cottonGossypium hirsutume0
- Material
- PGSSH 1e0
- Treatment
- dotted seeding method and seeding rates of 100 and 120 thousand pcs./hae3
- Outcome
- yielde3
- Direction
- best optionse3
- Value
- 1.36 and 1.38 t/hae3
- Setting
- Rostov regione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The studies were conducted in 2022–2024 in the Rostov region on an experimental plot when cultivating the PGSSH 1 cotton variety”
e3“The best options for yield, fiber yield and 1000-grain weight were determined with the dotted seeding method and seeding rates of 100 and 120 thousand pcs./ha – 1.36 and 1.38 t/ha, 36.2 and 36 %, 103.8 and 101.8 g, respectively”
Claim · model-written summary
The dotted seeding method with 100 and 120 thousand pcs./ha gave the best fiber yield (36.2 and 36 %).
- Taxon
- cottonGossypium hirsutume0
- Material
- PGSSH 1e0
- Treatment
- dotted seeding method and seeding rates of 100 and 120 thousand pcs./hae3
- Outcome
- fiber yielde3
- Direction
- best optionse3
- Value
- 36.2 and 36 %e3
- Setting
- Rostov regione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The studies were conducted in 2022–2024 in the Rostov region on an experimental plot when cultivating the PGSSH 1 cotton variety”
e3“The best options for yield, fiber yield and 1000-grain weight were determined with the dotted seeding method and seeding rates of 100 and 120 thousand pcs./ha – 1.36 and 1.38 t/ha, 36.2 and 36 %, 103.8 and 101.8 g, respectively”
Claim · model-written summary
The dotted seeding method with 100 and 120 thousand pcs./ha gave the best 1000-grain weight (103.8 and 101.8 g).
- Taxon
- cottonGossypium hirsutume0
- Material
- PGSSH 1e0
- Treatment
- dotted seeding method and seeding rates of 100 and 120 thousand pcs./hae3
- Outcome
- 1000-grain weighte3
- Direction
- best optionse3
- Value
- 103.8 and 101.8 ge3
- Setting
- Rostov regione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The studies were conducted in 2022–2024 in the Rostov region on an experimental plot when cultivating the PGSSH 1 cotton variety”
e3“The best options for yield, fiber yield and 1000-grain weight were determined with the dotted seeding method and seeding rates of 100 and 120 thousand pcs./ha – 1.36 and 1.38 t/ha, 36.2 and 36 %, 103.8 and 101.8 g, respectively”
Claim · model-written summary
The dotted seeding method and seeding rates of 100 and 120 thousand pcs./ha are the optimal choice for cotton.
- Taxon
- cottonGossypium hirsutume0
- Outcome
- optimal seeding ratese4
- Value
- 100 and 120 thousand pcs/hae4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The studies were conducted in 2022–2024 in the Rostov region on an experimental plot when cultivating the PGSSH 1 cotton variety”
e4“According to all indicators, the best seeding method is dotted, and the optimal seeding rates are 100 and 120 thousand pcs/ha”
Claim · model-written summary
The nested seeding method with the same seeding rates should not be excluded, given an insignificant yield difference of 0.06 t/ha.
- Taxon
- cottonGossypium hirsutume0
- Outcome
- nested seeding methode5
- Value
- 0.06 t/hae5
- Qualifier
- insignificant difference in yielde5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The studies were conducted in 2022–2024 in the Rostov region on an experimental plot when cultivating the PGSSH 1 cotton variety”
e5“But the nested seeding method with the same seeding rates should not be excluded, since an insignificant difference in yield between these options of 0.06 t/ha has been determined”
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