Abstract
This current study was performed to determine the influences of plant spacing, Nitrogen (N) fertilization rate and their effect, on growth traits, yield, and yield components of cotton ( Gossypium barbadense L.) cv. Giza 97 during the 2019 and 2020 seasons. A split plot experiment in three replicates was utilized whereas the cotton seeds were planted at 20, 30, and 40 cm, as main plots and nitrogen at 75, 100, and 125%, was in subplots. The results revealed that the planting spacing at 40 cm significantly ( p ≤ 0.01) increased plant height, number of fruiting branches per plant, number of bolls per plant, boll weight (BW), lint percentage (L%), seed cotton yield (SCY), lint cotton yield (LCY), seed index and lint index by 165.68 cm, 20.92, 23.93, 3.75 g, 42.01%, 4.24 ton/ha, 5.16 ton/ha, 12.05, 7.86, respectively, as average in both seasons. The application of N fertilizer rate at 125% caused a maximum increase in growth and yield parameters i.e., plant height (169.08 cm), number of vegetative branches (2.67), number of fruiting branches per plant (20.82), number bolls per fruiting branch (1.39), number of bolls per plant (23.73), boll weight (4.1 g), lint percent (41.9%), seed index (11.8 g), and lint index (8.2), while the plants treated with 100% N rates exhibited highest seed cotton yield (4.3 ton/ha) and lint cotton yield (5.6 ton/ha), as average in both seasons. Combining plant spacing at 40 cm between plants with a 100% N fertilizer rate recorded the highest lint cotton yield (5.67 ton/ha), while the highest seed cotton yield (4.43 and 4.50 ton/ha) was obtained from 125% N fertilizer rate under planting spacing 20 and 40 cm, respectively. Conclusively, a wide density (40 cm) with 125% N is a promising option for improved biomass, cotton growth, yield, physiological traits, and fiber quality.
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Claims 20
Claim · model-written summary
Planting spacing of 40 cm significantly increased plant height of cotton to 165.68 cm (average of both seasons).
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- planting spacing at 40 cme0
- Outcome
- plant heighte0
- Direction
- increasede0
- Value
- 165.68 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“planting spacing at 40 cm significantly ( p ≤ 0.01) increased plant height, number of fruiting branches per plant, number of bolls per plant, boll weight (BW), lint percentage (L%), seed cotton yield (SCY), lint cotton yield (LCY), seed index and lint index by 165.68 cm”
t0“Egyptian Cotton”
Claim · model-written summary
Planting spacing of 40 cm significantly increased the number of fruiting branches per plant (20.92) and the number of bolls per plant (23.93) of cotton.
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- planting spacing at 40 cme0
- Outcome
- number of fruiting branches per plant, number of bolls per plante0
- Direction
- increasede0
- Value
- 20.92, 23.93e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“planting spacing at 40 cm significantly ( p ≤ 0.01) increased plant height, number of fruiting branches per plant, number of bolls per plant, boll weight (BW), lint percentage (L%), seed cotton yield (SCY), lint cotton yield (LCY), seed index and lint index by 165.68 cm, 20.92, 23.93”
t0“Egyptian Cotton”
Claim · model-written summary
Planting spacing of 40 cm significantly increased boll weight (3.75 g) and lint percentage (42.01%) of cotton.
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- planting spacing at 40 cme0
- Outcome
- boll weight (BW), lint percentage (L%)e0
- Direction
- increasede0
- Value
- 3.75 g, 42.01%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“planting spacing at 40 cm significantly ( p ≤ 0.01) increased plant height, number of fruiting branches per plant, number of bolls per plant, boll weight (BW), lint percentage (L%), seed cotton yield (SCY), lint cotton yield (LCY), seed index and lint index by 165.68 cm, 20.92, 23.93, 3.75 g, 42.01%”
t0“Egyptian Cotton”
Claim · model-written summary
Planting spacing of 40 cm significantly increased seed cotton yield to 4.24 ton/ha.
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- planting spacing at 40 cme0
- Outcome
- seed cotton yield (SCY)e0
- Direction
- increasede0
- Value
- 4.24 ton/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“planting spacing at 40 cm significantly ( p ≤ 0.01) increased plant height, number of fruiting branches per plant, number of bolls per plant, boll weight (BW), lint percentage (L%), seed cotton yield (SCY), lint cotton yield (LCY), seed index and lint index by 165.68 cm, 20.92, 23.93, 3.75 g, 42.01%, 4.24 ton/ha”
t0“Egyptian Cotton”
Claim · model-written summary
Planting spacing of 40 cm significantly increased lint cotton yield to 5.16 ton/ha.
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- planting spacing at 40 cme0
- Outcome
- lint cotton yield (LCY)e0
- Direction
- increasede0
- Value
- 5.16 ton/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“planting spacing at 40 cm significantly ( p ≤ 0.01) increased plant height, number of fruiting branches per plant, number of bolls per plant, boll weight (BW), lint percentage (L%), seed cotton yield (SCY), lint cotton yield (LCY), seed index and lint index by 165.68 cm, 20.92, 23.93, 3.75 g, 42.01%, 4.24 ton/ha, 5.16 ton/ha”
t0“Egyptian Cotton”
Claim · model-written summary
Planting spacing of 40 cm significantly increased seed index (12.05) and lint index (7.86) of cotton.
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- planting spacing at 40 cme0
- Outcome
- seed index and lint indexe0
- Direction
- increasede0
- Value
- 12.05, 7.86e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“planting spacing at 40 cm significantly ( p ≤ 0.01) increased plant height, number of fruiting branches per plant, number of bolls per plant, boll weight (BW), lint percentage (L%), seed cotton yield (SCY), lint cotton yield (LCY), seed index and lint index by 165.68 cm, 20.92, 23.93, 3.75 g, 42.01%, 4.24 ton/ha, 5.16 ton/ha, 12.05, 7.86”
t0“Egyptian Cotton”
Claim · model-written summary
Nitrogen fertilizer at 125% caused a maximum increase in cotton plant height (169.08 cm).
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- N fertilizer rate at 125%e0
- Outcome
- plant heighte0
- Direction
- maximum increasee0
- Value
- 169.08 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“application of N fertilizer rate at 125% caused a maximum increase in growth and yield parameters i.e., plant height (169.08 cm)”
t0“Egyptian Cotton”
Claim · model-written summary
Nitrogen fertilizer at 125% caused a maximum increase in cotton number of vegetative branches (2.67).
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- N fertilizer rate at 125%e0
- Outcome
- number of vegetative branchese0
- Direction
- maximum increasee0
- Value
- 2.67e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“application of N fertilizer rate at 125% caused a maximum increase in growth and yield parameters i.e., plant height (169.08 cm), number of vegetative branches (2.67)”
t0“Egyptian Cotton”
Claim · model-written summary
Nitrogen fertilizer at 125% caused a maximum increase in cotton number of fruiting branches per plant (20.82).
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- N fertilizer rate at 125%e0
- Outcome
- number of fruiting branches per plante0
- Direction
- maximum increasee0
- Value
- 20.82e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“application of N fertilizer rate at 125% caused a maximum increase in growth and yield parameters i.e., plant height (169.08 cm), number of vegetative branches (2.67), number of fruiting branches per plant (20.82)”
t0“Egyptian Cotton”
Claim · model-written summary
Nitrogen fertilizer at 125% caused a maximum increase in cotton number of bolls per fruiting branch (1.39).
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- N fertilizer rate at 125%e0
- Outcome
- number bolls per fruiting branche0
- Direction
- maximum increasee0
- Value
- 1.39e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“application of N fertilizer rate at 125% caused a maximum increase in growth and yield parameters i.e., plant height (169.08 cm), number of vegetative branches (2.67), number of fruiting branches per plant (20.82), number bolls per fruiting branch (1.39)”
t0“Egyptian Cotton”
Claim · model-written summary
Nitrogen fertilizer at 125% caused a maximum increase in cotton number of bolls per plant (23.73).
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- N fertilizer rate at 125%e0
- Outcome
- number of bolls per plante0
- Direction
- maximum increasee0
- Value
- 23.73e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“application of N fertilizer rate at 125% caused a maximum increase in growth and yield parameters i.e., plant height (169.08 cm), number of vegetative branches (2.67), number of fruiting branches per plant (20.82), number bolls per fruiting branch (1.39), number of bolls per plant (23.73)”
t0“Egyptian Cotton”
Claim · model-written summary
Nitrogen fertilizer at 125% caused a maximum increase in cotton boll weight (4.1 g).
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- N fertilizer rate at 125%e0
- Outcome
- boll weighte0
- Direction
- maximum increasee0
- Value
- 4.1 ge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“application of N fertilizer rate at 125% caused a maximum increase in growth and yield parameters i.e., plant height (169.08 cm), number of vegetative branches (2.67), number of fruiting branches per plant (20.82), number bolls per fruiting branch (1.39), number of bolls per plant (23.73), boll weight (4.1 g)”
t0“Egyptian Cotton”
Claim · model-written summary
Nitrogen fertilizer at 125% caused a maximum increase in cotton lint percentage (41.9%).
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- N fertilizer rate at 125%e0
- Outcome
- lint percente0
- Direction
- maximum increasee0
- Value
- 41.9%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“application of N fertilizer rate at 125% caused a maximum increase in growth and yield parameters i.e., plant height (169.08 cm), number of vegetative branches (2.67), number of fruiting branches per plant (20.82), number bolls per fruiting branch (1.39), number of bolls per plant (23.73), boll weight (4.1 g), lint percent (41.9%)”
t0“Egyptian Cotton”
Claim · model-written summary
Nitrogen fertilizer at 125% caused a maximum increase in cotton seed index (11.8 g).
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- N fertilizer rate at 125%e0
- Outcome
- seed indexe0
- Direction
- maximum increasee0
- Value
- 11.8 ge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“application of N fertilizer rate at 125% caused a maximum increase in growth and yield parameters i.e., plant height (169.08 cm), number of vegetative branches (2.67), number of fruiting branches per plant (20.82), number bolls per fruiting branch (1.39), number of bolls per plant (23.73), boll weight (4.1 g), lint percent (41.9%), seed index (11.8 g)”
t0“Egyptian Cotton”
Claim · model-written summary
Nitrogen fertilizer at 125% caused a maximum increase in cotton lint index (8.2).
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- N fertilizer rate at 125%e0
- Outcome
- lint indexe0
- Direction
- maximum increasee0
- Value
- 8.2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“application of N fertilizer rate at 125% caused a maximum increase in growth and yield parameters i.e., plant height (169.08 cm), number of vegetative branches (2.67), number of fruiting branches per plant (20.82), number bolls per fruiting branch (1.39), number of bolls per plant (23.73), boll weight (4.1 g), lint percent (41.9%), seed index (11.8 g), and lint index (8.2)”
t0“Egyptian Cotton”
Claim · model-written summary
Cotton plants treated with 100% N exhibited the highest seed cotton yield (4.3 ton/ha).
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- 100% N ratese0
- Outcome
- seed cotton yielde0
- Direction
- higheste0
- Value
- 4.3 ton/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“plants treated with 100% N rates exhibited highest seed cotton yield (4.3 ton/ha)”
t0“Egyptian Cotton”
Claim · model-written summary
Cotton plants treated with 100% N exhibited the highest lint cotton yield (5.6 ton/ha).
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- 100% N ratese0
- Outcome
- lint cotton yielde0
- Direction
- higheste0
- Value
- 5.6 ton/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“plants treated with 100% N rates exhibited highest seed cotton yield (4.3 ton/ha) and lint cotton yield (5.6 ton/ha)”
t0“Egyptian Cotton”
Claim · model-written summary
Combining 40 cm plant spacing with a 100% N fertilizer rate gave the highest lint cotton yield (5.67 ton/ha).
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- plant spacing at 40 cm between plants with a 100% N fertilizer ratee0
- Outcome
- lint cotton yielde0
- Direction
- higheste0
- Value
- 5.67 ton/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Combining plant spacing at 40 cm between plants with a 100% N fertilizer rate recorded the highest lint cotton yield (5.67 ton/ha)”
t0“Egyptian Cotton”
Claim · model-written summary
The highest seed cotton yield (4.43 and 4.50 ton/ha) was obtained with the 125% N fertilizer rate under planting spacing of 20 and 40 cm, respectively.
- Taxon
- Egyptian Cotton
Gossypium barbadenset0 - Treatment
- 125% N fertilizer rate under planting spacing 20 and 40 cme0
- Outcome
- seed cotton yielde0
- Direction
- higheste0
- Value
- 4.43 and 4.50 ton/hae0
- Qualifier
- respectivelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“the highest seed cotton yield (4.43 and 4.50 ton/ha) was obtained from 125% N fertilizer rate under planting spacing 20 and 40 cm, respectively”
t0“Egyptian Cotton”
Claim · model-written summary
A wide density (40 cm) with 125% N is a promising option for improved biomass, cotton growth, yield, physiological traits and fiber quality.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- a wide density (40 cm) with 125% Ne0
- Outcome
- improved biomass, cotton growth, yield, physiological traits, and fiber qualitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“a wide density (40 cm) with 125% N is a promising option for improved biomass, cotton growth, yield, physiological traits, and fiber quality”
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