Abstract
Field experiments were performed in 2 successive seasons at the experimental station, Faculty of Agriculture, Cairo University, Giza, Egypt, on the Egyptian cotton cultivar Giza 75 ( Gossypium barbadense L.). Cotton plants were sprayed with the growth regulator 1-naphthaleneacetic acid (NAA) once (after 90 days), twice (90 and 105 days), or 3 times (90, 105, and 120 days after sowing), during the square initiation and bolling stage, at concentrations of 5, 10, 15, 20 or 25 mg/L, respectively. The volume of solution was the same for all treatments, 960 L/ha. The control plants were sprayed with water only. The effect of the previous treatments on yield components, lint yield, and fibre properties was studied. The application of NAA increased the number of opened bolls per plant, boll weight, seed index, and lint yield per ha. Lint percentage, fibre length parameters, and micronaire value were not significantly affected by NAA. Flat bundle strength was significantly increased when NAA was applied once at 10-25 mg/L. The application of NAA twice or 3 times at 15-20 mg/L tended to give the best results on yield components and lint yield of the Egyptian cotton plants.
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Claims 6
Claim · model-written summary
NAA increased opened bolls per plant, boll weight and seed index.
- Taxon
- Gossypium barbadense L.
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Gossypium barbadenset0 - Treatment
- NAAe0
- Outcome
- number of opened bolls per plant, boll weight, seed indexe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The application of NAA increased the number of opened bolls per plant, boll weight, seed index, and lint yield per ha.”
t0“Gossypium barbadense L.”
Claim · model-written summary
NAA increased lint yield per hectare.
- Taxon
- Gossypium barbadense L.Gossypium barbadenset0
- Treatment
- NAAe0
- Outcome
- lint yield per hae0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of NAA increased the number of opened bolls per plant, boll weight, seed index, and lint yield per ha.”
t0“Gossypium barbadense L.”
Claim · model-written summary
NAA did not significantly affect lint percentage or fibre length parameters.
- Taxon
- Gossypium barbadense L.Gossypium barbadenset0
- Treatment
- NAAe0
- Outcome
- Lint percentage, fibre length parameterse0
- Direction
- not significantly affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lint percentage, fibre length parameters, and micronaire value were not significantly affected by NAA.”
t0“Gossypium barbadense L.”
Claim · model-written summary
NAA did not significantly affect micronaire value.
- Taxon
- Gossypium barbadense L.Gossypium barbadenset0
- Treatment
- NAAe0
- Outcome
- micronaire valuee0
- Direction
- not significantly affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lint percentage, fibre length parameters, and micronaire value were not significantly affected by NAA.”
t0“Gossypium barbadense L.”
Claim · model-written summary
A single 10–25 mg/L NAA spray significantly increased flat bundle strength.
- Taxon
- Gossypium barbadense L.Gossypium barbadenset0
- Treatment
- NAA was applied once at 10-25 mg/Le0
- Outcome
- Flat bundle strengthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Flat bundle strength was significantly increased when NAA was applied once at 10-25 mg/L.”
t0“Gossypium barbadense L.”
Claim · model-written summary
Two or three 15–20 mg/L NAA sprays tended to give the best yield-component and lint-yield results.
- Taxon
- Egyptian cottonGossypium barbadensee0
- Treatment
- NAA twice or 3 times at 15-20 mg/Le0
- Outcome
- yield components and lint yielde0
- Direction
- beste0
- Qualifier
- tended toe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of NAA twice or 3 times at 15-20 mg/L tended to give the best results on yield components and lint yield of the Egyptian cotton plants.”
The same questions in other papers
1-naphthaleneacetic acid · quality: grain · Gossypium barbadense (Egyptian cotton)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- no effect
- no effect
1-naphthaleneacetic acid · yield · Gossypium barbadense (Egyptian cotton)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 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.