Abstract
Cottonseed oil and protein content as well as germination traits are major indicators of seed quality. However, the responses of these indicators to plant density and mepiquat chloride (MC) are still uncertain. To investigate plant density and MC effects on cottonseed yield and main quality parameters, we conducted a two-year field experiment including four plant densities (1.35, 2.55, 3.75 and 4.95 plants·m − 2 ) and two doses of MC (0 and 135 g·hm − 2 ) in Dafeng, Jiangsu Province, in 2013 and 2014. The application of MC reduced plant height, fruit branch length and fruiting branch number under different plant densities, resulting in a lower and more compact plant canopy. Cottonseed yield showed a nonlinear increase as plant density increasing and achieved the highest value at 3.75 plants·m − 2 , regardless of MC application. No significant interactions were found between plant density and MC for cottonseed yield and quality parameters. The 100-seed weight, cottonseed oil content and vigor index significantly decreased as plant density increased, while these parameters significantly increased with MC applying under different plant densities. Seed vigor index was positively correlated with 100-seed weight and seed oil content across different plant densities and MC treatments. Thus, application of MC could realize a win-win situation between cottonseed yield and main quality parameters under various densities; and plant density of 3.75 plants·m − 2 combined with 135 g·hm − 2 of MC applying is optimal for high cottonseed yield and quality in this cotton production area.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
MC reduced cotton plant height, fruit branch length and fruiting branch number across densities.
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- MCe0
- Outcome
- plant height, fruit branch length and fruiting branch numbere0
- Direction
- reducede0
- Qualifier
- under different plant densitiese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of MC reduced plant height, fruit branch length and fruiting branch number under different plant densities”
t0“cotton”
Claim · model-written summary
MC resulted in a lower, more compact cotton canopy.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- mepiquat chloridet0
- Outcome
- lower and more compact plant canopye0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“resulting in a lower and more compact plant canopy.”
t0“mepiquat chloride on yield and main properties of cottonseed”
Claim · model-written summary
Cottonseed yield increased nonlinearly with density and peaked at 3.75 plants·m − 2.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- plant densitye0
- Outcome
- Cottonseed yielde0
- Direction
- increasee0
- Value
- 3.75 plants·m − 2e0
- Qualifier
- regardless of MC applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cottonseed yield showed a nonlinear increase as plant density increasing and achieved the highest value at 3.75 plants·m − 2 , regardless of MC application.”
t0“cotton”
Claim · model-written summary
Density and MC had no significant interaction for cottonseed yield and quality.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- interactionse0
- Qualifier
- between plant density and MC for cottonseed yield and quality parameterse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No significant interactions were found between plant density and MC for cottonseed yield and quality parameters.”
t0“cotton”
Claim · model-written summary
Seed weight, oil content and vigor index decreased with increasing density.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- plant densitye0
- Outcome
- 100-seed weight, cottonseed oil content and vigor indexe0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 100-seed weight, cottonseed oil content and vigor index significantly decreased as plant density increased”
t0“cotton”
Claim · model-written summary
Seed weight, oil content and vigor index increased with MC across densities.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- MCe0
- Outcome
- these parameterse0
- Direction
- increasede0
- Qualifier
- under different plant densitiese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these parameters significantly increased with MC applying under different plant densities.”
t0“cotton”
Claim · model-written summary
Cotton seed vigor index was positively correlated with 100-seed weight.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- Seed vigor indexe0
- Direction
- positively correlatede0
- Comparator
- 100-seed weighte0
Not reportedMaterial
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed vigor index was positively correlated with 100-seed weight and seed oil content across different plant densities and MC treatments.”
t0“cotton”
Claim · model-written summary
Cotton seed vigor index was positively correlated with seed oil content.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- Seed vigor indexe0
- Direction
- positively correlatede0
- Comparator
- seed oil contente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed vigor index was positively correlated with 100-seed weight and seed oil content across different plant densities and MC treatments.”
t0“cotton”
Claim · model-written summary
The authors recommend 3.75 plants·m − 2 with 135 g·hm − 2 MC for high cottonseed yield and quality.
- Taxon
- cottonGossypium hirsutume0
- Outcome
- plant density of 3.75 plants·m − 2 combined with 135 g·hm − 2 of MC applyinge0
- Setting
- this cotton production areae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant density of 3.75 plants·m − 2 combined with 135 g·hm − 2 of MC applying is optimal for high cottonseed yield and quality in this cotton production area.”
The same questions in other papers
mepiquat chloride · growth · Gossypium hirsutum (cotton)Positive and negative results
37 papers in the same direction as this paper · 10 in the opposite direction · 1 reporting no difference from an alternative
- negative
- positive
- no effect
45 papers more in this group
See all 49 papers →chloride · growth · Gossypium hirsutum (cotton)Positive and negative results
39 papers in the same direction as this paper · 10 in the opposite direction · 1 reporting no difference from an alternative
- negative
- positive
- positive
47 papers more in this group
See all 51 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.