Abstract
Fiber quality varies depending on the fruit position of the cotton plant. Nitrogen (N) availability can alter fruiting dynamics and, consequently, fiber quality. The current study evaluated the effect of cover crops and N availability on cellulose content and fiber quality in different plant positions. The experiment was carried out in Presidente Bernardes, São Paulo, Brazil. Experiment design was a split-plot in completely randomized block design with five replicates. Cover crops were allocated: Fallow (F), Velvet bean (VB), Ruzigrass (Urochloa ruziziensis) (R), Inoculated ruzigrass (IR) (Azospirillum), Ruzigrass + velvet bean (R+VB) and Inoculated ruzigrass + velvet bean (IR+VB); and N rates (80 and 120 kg ha−1) in the sub-plots. Cellulose content in the lower, middle, and upper third of the plants were evaluated at 15 and 30 days after anthesis (DAA) and at harvest. At 15 and 30 DAA, the cellulose content was higher in the lower third in most treatments, except in the treatment with ruzigrass (120 N), which was higher in the upper third. Fibers with higher quality and final cellulose content are in the lower parts of the plant, and IR+VB improved fiber quality by providing applications with lower rates of N.
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Claims 5
Claim · model-written summary
At 15 and 30 days after anthesis, lower plant thirds had higher cellulose content in most treatments.
- Taxon
- cotton plant
Gossypium hirsutume1 - Organ / stage
- lower thirde0
- Outcome
- cellulose contente0
- Direction
- highere0
- Qualifier
- most treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 15 and 30 DAA, the cellulose content was higher in the lower third in most treatments”
e1“cotton plant”
Claim · model-written summary
With ruzigrass and 120 N, upper plant thirds had higher cellulose content.
- Taxon
- cotton plantGossypium hirsutume2
- Organ / stage
- upper thirde0
- Treatment
- ruzigrass (120 N)e0
- Outcome
- cellulose contente1
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“except in the treatment with ruzigrass (120 N), which was higher in the upper third”
e1“the cellulose content was higher in the lower third”
e2“cotton plant”
Claim · model-written summary
Fiber quality was higher in lower parts of cotton plants.
- Taxon
- cotton plantGossypium hirsutume1
- Organ / stage
- lower parts of the plante0
- Outcome
- qualitye0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fibers with higher quality and final cellulose content are in the lower parts of the plant”
e1“cotton plant”
Claim · model-written summary
Final cellulose content was higher in lower parts of cotton plants.
- Taxon
- cotton plantGossypium hirsutume1
- Organ / stage
- lower parts of the plante0
- Outcome
- final cellulose contente0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fibers with higher quality and final cellulose content are in the lower parts of the plant”
e1“cotton plant”
Claim · model-written summary
IR+VB improved fiber quality with lower nitrogen rates.
- Taxon
- cotton plantGossypium hirsutume1
- Treatment
- IR+VBe0
- Outcome
- fiber qualitye0
- Direction
- improvede0
- Qualifier
- lower rates of Ne0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IR+VB improved fiber quality by providing applications with lower rates of N”
e1“cotton plant”
The same questions in other papers
inoculation · quality: grain · Gossypium hirsutum (cotton)Positive and negative results
5 papers in the same direction as this paper · 6 in the opposite direction
- negative
- no effect
- no effect
8 papers more in this group
See all 12 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.