Abstract
[Objective] To observe cotton growth,cotton boll and production at different planting densities and to provide a theoretical reference for reasonable planting density and high-quality high yield cotton along the Yangtze River.[Method] The cotton variety Xiangzamian 8 was used,and its initial density was 12 000 plants/hm2.Density gradient was 9 000 plants/hm2 to set up six treatments.The growth cycle,yield,cotton boll,and characteristics of cotton fiber were observed.[Result] Density did not have significant effect on plant height and growth cycle of cotton.Seed cotton lint percentage and fiber quality were not significantly different between treatments of different densities.However,boll weight,distribution of three-boll,boll abscission rate,stiff and rot boll,and yield were affected significantly.The boll weight and bolls of July 21 decreased with the increase of planting density.The boll abscission rate and percentage of stiff and rot boll increased with the increase of planting density.In addition,the treatment 5 was the worst.The lint yield was highest in the treatment 3 and lowest in the treatment 1,and it was higher in the treatment 2,3 and 4.[Conclusion] The optimum planting density of hybrid insect-resistant cotton is 30 000 plants/hm2 in cotton areas along the Yangtze River.
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Claims 10
Claim · model-written summary
Plant height did not differ significantly across density treatments.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- Densitye0
- Outcome
- plant heighte0
- Direction
- did not have significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Density did not have significant effect on plant height and growth cycle of cotton”
Claim · model-written summary
Cotton growth cycle did not differ significantly across density treatments.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- Densitye0
- Outcome
- growth cyclee0
- Direction
- did not have significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Density did not have significant effect on plant height and growth cycle of cotton”
Claim · model-written summary
Seed cotton lint percentage and fiber quality did not differ significantly across densities.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- different densitiese0
- Outcome
- Seed cotton lint percentage and fiber qualitye0
- Direction
- not significantly differente0
- Comparator
- treatments of different densitiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed cotton lint percentage and fiber quality were not significantly different between treatments of different densities”
t0“Hybrid Insect-Resistant Cotton”
Claim · model-written summary
Boll weight and July 21 bolls decreased as planting density increased.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- planting densitye0
- Outcome
- boll weight and bolls of July 21e0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The boll weight and bolls of July 21 decreased with the increase of planting density”
t0“Hybrid Insect-Resistant Cotton”
Claim · model-written summary
Boll abscission rate and stiff and rot boll percentage increased with density.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- planting densitye0
- Outcome
- boll abscission rate and percentage of stiff and rot bolle0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The boll abscission rate and percentage of stiff and rot boll increased with the increase of planting density”
t0“Hybrid Insect-Resistant Cotton”
Claim · model-written summary
Treatment 5 performed worst.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- treatment 5e0
- Outcome
- the worste0
- Direction
- the worste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the treatment 5 was the worst”
t0“Hybrid Insect-Resistant Cotton”
Claim · model-written summary
Lint yield was highest in treatment 3.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- treatment 3e0
- Outcome
- lint yielde0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lint yield was highest in the treatment 3”
t0“Hybrid Insect-Resistant Cotton”
Claim · model-written summary
Lint yield was lowest in treatment 1.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- treatment 1e0
- Outcome
- lint yielde0
- Direction
- loweste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lint yield was highest in the treatment 3 and lowest in the treatment 1”
t0“Hybrid Insect-Resistant Cotton”
Claim · model-written summary
Treatments 2, 3 and 4 had higher lint yield.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- treatment 2,3 and 4e0
- Outcome
- lint yielde0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lint yield was highest in the treatment 3 and lowest in the treatment 1,and it was higher in the treatment 2,3 and 4”
t0“Hybrid Insect-Resistant Cotton”
Claim · model-written summary
The authors recommend a planting density of 30 000 plants/hm2 along the Yangtze River.
- Taxon
- cottonGossypium hirsutume0
- Outcome
- optimum planting densitye0
- Value
- 30 000 plants/hm2e0
- Setting
- Yangtze Rivere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The optimum planting density of hybrid insect-resistant cotton is 30 000 plants/hm2 in cotton areas along the Yangtze River”
The same questions in other papers
density · growth · Gossypium hirsutum (cotton)Positive and negative results
6 papers in the same direction as this paper · 39 in the opposite direction
- positive
- positive
- positive
42 papers more in this group
See all 46 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.