Paper · 2006 · http://www.idosi.org/wjas/wjas2(1)/9.pdf

Cottonseed, Protein, Oil Yields and Oil Properties as Affected by Nitrogen Fertilization and Foliar Application of Potassium and a Plant Growth Retardant

Zakaria M. Sawan; S. A. Hafez; Ahmed E. Basyony; et al.

16
claims
56
verbatim quotes
48
citations
2
research areas
—
Not open access

Abstract

Abstract: Field experiments were conducted in two successive seasons, at the Agricultural Research Center, Giza, Egypt. The aim was to investigate the effect of N-fertilization rate (95.2 and 142.8 kg of N/ha, applied as ammonium nitrate containing 33.5 % N in two equal doses at 6 and 8 weeks after sowing), together with foliar application of potassium (applied as potassium sulfate containing 48 % K2O at 0.0, 400, 800 or 1200 ppm K2O, applied twice: 70 and 95 days after sowing) and the plant growth retardant (PGR) Pix (applied twice: 75 days after sowing at 0.0 or 50 ppm and 90 days after sowing at 0.0 and 25 ppm) on seed, protein and oil yields and oil properties of Egyptian cotton cultivar “Giza 86 (Gossypium barbadense). The higher N-rate, as well as the application of potassium at different concentrations and plant growth retardant Pix resulted in an increase in cottonseed yield/ha, seed index, seed protein content, oil and protein yield/ha, seed oil refractive index, unsaponifiable matter and total unsaturated fatty acids (oleic and linoleic). Those treatments decreased, though oil acid value, saponification value and total saturated fatty acids. The seed oil content tended to decrease when the high N-rate was applied, but tended to increase with the application of potassium at different concentrations and Pix. There were some differences between potassium concentrations regarding their effects on the studied characters. Key words: Cottonseed yield nitrogen oil fatty acids composition plant growth retardant potassium seed protein content seed oil content seed oil properties

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 16

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A higher N rate increased cottonseed yield per hectare and seed index.

Taxon
Gossypium barbadenseGossypium barbadensee0
Material
Giza 86e0
Organ / stage
seede1
Treatment
higher N-ratee1
Outcome
cottonseed yield/ha, seed indexe1
Direction
increasee1
Setting
Giza, Egypte5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Egyptian cotton cultivar “Giza 86 (Gossypium barbadense)”

✓ located verbatim in the source · abstract, characters 676–732 · show in text ↑
e1

“The higher N-rate, as well as the application of potassium at different concentrations and plant growth retardant Pix resulted in an increase in cottonseed yield/ha, seed index”

✓ located verbatim in the source · abstract, characters 734–910 · show in text ↑
e5

“Field experiments were conducted in two successive seasons, at the Agricultural Research Center, Giza, Egypt”

✓ located verbatim in the source · abstract, characters 10–118 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar potassium at different concentrations increased cottonseed yield per hectare and seed index.

Taxon
Gossypium barbadenseGossypium barbadensee0
Material
Giza 86e0
Organ / stage
seede1
Treatment
application of potassium at different concentrationse1
Outcome
cottonseed yield/ha, seed indexe1
Direction
increasee1
Setting
Giza, Egypte5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Egyptian cotton cultivar “Giza 86 (Gossypium barbadense)”

✓ located verbatim in the source · abstract, characters 676–732 · show in text ↑
e1

“The higher N-rate, as well as the application of potassium at different concentrations and plant growth retardant Pix resulted in an increase in cottonseed yield/ha, seed index”

✓ located verbatim in the source · abstract, characters 734–910 · show in text ↑
e5

“Field experiments were conducted in two successive seasons, at the Agricultural Research Center, Giza, Egypt”

✓ located verbatim in the source · abstract, characters 10–118 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The growth retardant Pix increased cottonseed yield per hectare and seed index.

Taxon
Gossypium barbadenseGossypium barbadensee0
Material
Giza 86e0
Organ / stage
seede1
Treatment
plant growth retardant Pixe1
Outcome
cottonseed yield/ha, seed indexe1
Direction
increasee1
Setting
Giza, Egypte5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Egyptian cotton cultivar “Giza 86 (Gossypium barbadense)”

✓ located verbatim in the source · abstract, characters 676–732 · show in text ↑
e1

“The higher N-rate, as well as the application of potassium at different concentrations and plant growth retardant Pix resulted in an increase in cottonseed yield/ha, seed index”

✓ located verbatim in the source · abstract, characters 734–910 · show in text ↑
e5

“Field experiments were conducted in two successive seasons, at the Agricultural Research Center, Giza, Egypt”

✓ located verbatim in the source · abstract, characters 10–118 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A higher N rate increased seed protein content and oil and protein yield per hectare.

Taxon
Gossypium barbadenseGossypium barbadensee0
Material
Giza 86e0
Organ / stage
seede6
Treatment
higher N-ratee1
Outcome
seed protein content, oil and protein yield/hae6
Direction
increasee1
Setting
Giza, Egypte5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Egyptian cotton cultivar “Giza 86 (Gossypium barbadense)”

✓ located verbatim in the source · abstract, characters 676–732 · show in text ↑
e1

“The higher N-rate, as well as the application of potassium at different concentrations and plant growth retardant Pix resulted in an increase in cottonseed yield/ha, seed index”

✓ located verbatim in the source · abstract, characters 734–910 · show in text ↑
e5

“Field experiments were conducted in two successive seasons, at the Agricultural Research Center, Giza, Egypt”

✓ located verbatim in the source · abstract, characters 10–118 · show in text ↑
e6

“seed protein content, oil and protein yield/ha, seed oil refractive index, unsaponifiable matter and total unsaturated fatty acids (oleic and linoleic)”

✓ located verbatim in the source · abstract, characters 912–1063 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar potassium at different concentrations increased seed protein content and oil and protein yield per hectare.

Taxon
Gossypium barbadenseGossypium barbadensee0
Material
Giza 86e0
Organ / stage
seede6
Treatment
application of potassium at different concentrationse1
Outcome
seed protein content, oil and protein yield/hae6
Direction
increasee1
Setting
Giza, Egypte5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Egyptian cotton cultivar “Giza 86 (Gossypium barbadense)”

✓ located verbatim in the source · abstract, characters 676–732 · show in text ↑
e1

“The higher N-rate, as well as the application of potassium at different concentrations and plant growth retardant Pix resulted in an increase in cottonseed yield/ha, seed index”

✓ located verbatim in the source · abstract, characters 734–910 · show in text ↑
e5

“Field experiments were conducted in two successive seasons, at the Agricultural Research Center, Giza, Egypt”

✓ located verbatim in the source · abstract, characters 10–118 · show in text ↑
e6

“seed protein content, oil and protein yield/ha, seed oil refractive index, unsaponifiable matter and total unsaturated fatty acids (oleic and linoleic)”

✓ located verbatim in the source · abstract, characters 912–1063 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The growth retardant Pix increased seed protein content and oil and protein yield per hectare.

Taxon
Gossypium barbadenseGossypium barbadensee0
Material
Giza 86e0
Organ / stage
seede6
Treatment
plant growth retardant Pixe1
Outcome
seed protein content, oil and protein yield/hae6
Direction
increasee1
Setting
Giza, Egypte5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Egyptian cotton cultivar “Giza 86 (Gossypium barbadense)”

✓ located verbatim in the source · abstract, characters 676–732 · show in text ↑
e1

“The higher N-rate, as well as the application of potassium at different concentrations and plant growth retardant Pix resulted in an increase in cottonseed yield/ha, seed index”

✓ located verbatim in the source · abstract, characters 734–910 · show in text ↑
e5

“Field experiments were conducted in two successive seasons, at the Agricultural Research Center, Giza, Egypt”

✓ located verbatim in the source · abstract, characters 10–118 · show in text ↑
e6

“seed protein content, oil and protein yield/ha, seed oil refractive index, unsaponifiable matter and total unsaturated fatty acids (oleic and linoleic)”

✓ located verbatim in the source · abstract, characters 912–1063 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

A higher N rate increased seed oil refractive index, unsaponifiable matter and total unsaturated fatty acids.

Taxon
Gossypium barbadenseGossypium barbadensee0
Material
Giza 86e0
Organ / stage
seede6
Treatment
higher N-ratee1
Outcome
seed oil refractive index, unsaponifiable matter and total unsaturated fatty acidse6
Direction
increasee1
Setting
Giza, Egypte5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Egyptian cotton cultivar “Giza 86 (Gossypium barbadense)”

✓ located verbatim in the source · abstract, characters 676–732 · show in text ↑
e1

“The higher N-rate, as well as the application of potassium at different concentrations and plant growth retardant Pix resulted in an increase in cottonseed yield/ha, seed index”

✓ located verbatim in the source · abstract, characters 734–910 · show in text ↑
e5

“Field experiments were conducted in two successive seasons, at the Agricultural Research Center, Giza, Egypt”

✓ located verbatim in the source · abstract, characters 10–118 · show in text ↑
e6

“seed protein content, oil and protein yield/ha, seed oil refractive index, unsaponifiable matter and total unsaturated fatty acids (oleic and linoleic)”

✓ located verbatim in the source · abstract, characters 912–1063 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Foliar potassium at different concentrations increased seed oil refractive index, unsaponifiable matter and total unsaturated fatty acids.

Taxon
Gossypium barbadenseGossypium barbadensee0
Material
Giza 86e0
Organ / stage
seede6
Treatment
application of potassium at different concentrationse1
Outcome
seed oil refractive index, unsaponifiable matter and total unsaturated fatty acidse6
Direction
increasee1
Setting
Giza, Egypte5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Egyptian cotton cultivar “Giza 86 (Gossypium barbadense)”

✓ located verbatim in the source · abstract, characters 676–732 · show in text ↑
e1

“The higher N-rate, as well as the application of potassium at different concentrations and plant growth retardant Pix resulted in an increase in cottonseed yield/ha, seed index”

✓ located verbatim in the source · abstract, characters 734–910 · show in text ↑
e5

“Field experiments were conducted in two successive seasons, at the Agricultural Research Center, Giza, Egypt”

✓ located verbatim in the source · abstract, characters 10–118 · show in text ↑
e6

“seed protein content, oil and protein yield/ha, seed oil refractive index, unsaponifiable matter and total unsaturated fatty acids (oleic and linoleic)”

✓ located verbatim in the source · abstract, characters 912–1063 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

The growth retardant Pix increased seed oil refractive index, unsaponifiable matter and total unsaturated fatty acids.

Taxon
Gossypium barbadenseGossypium barbadensee0
Material
Giza 86e0
Organ / stage
seede6
Treatment
plant growth retardant Pixe1
Outcome
seed oil refractive index, unsaponifiable matter and total unsaturated fatty acidse6
Direction
increasee1
Setting
Giza, Egypte5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Egyptian cotton cultivar “Giza 86 (Gossypium barbadense)”

✓ located verbatim in the source · abstract, characters 676–732 · show in text ↑
e1

“The higher N-rate, as well as the application of potassium at different concentrations and plant growth retardant Pix resulted in an increase in cottonseed yield/ha, seed index”

✓ located verbatim in the source · abstract, characters 734–910 · show in text ↑
e5

“Field experiments were conducted in two successive seasons, at the Agricultural Research Center, Giza, Egypt”

✓ located verbatim in the source · abstract, characters 10–118 · show in text ↑
e6

“seed protein content, oil and protein yield/ha, seed oil refractive index, unsaponifiable matter and total unsaturated fatty acids (oleic and linoleic)”

✓ located verbatim in the source · abstract, characters 912–1063 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

A higher N rate decreased oil acid value, saponification value and total saturated fatty acids.

Taxon
Gossypium barbadenseGossypium barbadensee0
Material
Giza 86e0
Treatment
higher N-ratee1
Outcome
oil acid value, saponification value and total saturated fatty acidse2
Direction
decreasede2
Setting
Giza, Egypte5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Egyptian cotton cultivar “Giza 86 (Gossypium barbadense)”

✓ located verbatim in the source · abstract, characters 676–732 · show in text ↑
e1

“The higher N-rate, as well as the application of potassium at different concentrations and plant growth retardant Pix resulted in an increase in cottonseed yield/ha, seed index”

✓ located verbatim in the source · abstract, characters 734–910 · show in text ↑
e2

“Those treatments decreased, though oil acid value, saponification value and total saturated fatty acids”

✓ located verbatim in the source · abstract, characters 1065–1168 · show in text ↑
e5

“Field experiments were conducted in two successive seasons, at the Agricultural Research Center, Giza, Egypt”

✓ located verbatim in the source · abstract, characters 10–118 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Foliar potassium at different concentrations decreased oil acid value, saponification value and total saturated fatty acids.

Taxon
Gossypium barbadenseGossypium barbadensee0
Material
Giza 86e0
Treatment
application of potassium at different concentrationse1
Outcome
oil acid value, saponification value and total saturated fatty acidse2
Direction
decreasede2
Setting
Giza, Egypte5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Egyptian cotton cultivar “Giza 86 (Gossypium barbadense)”

✓ located verbatim in the source · abstract, characters 676–732 · show in text ↑
e1

“The higher N-rate, as well as the application of potassium at different concentrations and plant growth retardant Pix resulted in an increase in cottonseed yield/ha, seed index”

✓ located verbatim in the source · abstract, characters 734–910 · show in text ↑
e2

“Those treatments decreased, though oil acid value, saponification value and total saturated fatty acids”

✓ located verbatim in the source · abstract, characters 1065–1168 · show in text ↑
e5

“Field experiments were conducted in two successive seasons, at the Agricultural Research Center, Giza, Egypt”

✓ located verbatim in the source · abstract, characters 10–118 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

The growth retardant Pix decreased oil acid value, saponification value and total saturated fatty acids.

Taxon
Gossypium barbadenseGossypium barbadensee0
Material
Giza 86e0
Treatment
plant growth retardant Pixe1
Outcome
oil acid value, saponification value and total saturated fatty acidse2
Direction
decreasede2
Setting
Giza, Egypte5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Egyptian cotton cultivar “Giza 86 (Gossypium barbadense)”

✓ located verbatim in the source · abstract, characters 676–732 · show in text ↑
e1

“The higher N-rate, as well as the application of potassium at different concentrations and plant growth retardant Pix resulted in an increase in cottonseed yield/ha, seed index”

✓ located verbatim in the source · abstract, characters 734–910 · show in text ↑
e2

“Those treatments decreased, though oil acid value, saponification value and total saturated fatty acids”

✓ located verbatim in the source · abstract, characters 1065–1168 · show in text ↑
e5

“Field experiments were conducted in two successive seasons, at the Agricultural Research Center, Giza, Egypt”

✓ located verbatim in the source · abstract, characters 10–118 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

A high N rate tended to decrease seed oil content.

Taxon
Gossypium barbadenseGossypium barbadensee0
Material
Giza 86e0
Treatment
high N-ratee3
Outcome
seed oil contente3
Direction
decreasee3
Qualifier
tended toe3
Setting
Giza, Egypte5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Egyptian cotton cultivar “Giza 86 (Gossypium barbadense)”

✓ located verbatim in the source · abstract, characters 676–732 · show in text ↑
e3

“The seed oil content tended to decrease when the high N-rate was applied, but tended to increase with the application of potassium at different concentrations and Pix”

✓ located verbatim in the source · abstract, characters 1170–1336 · show in text ↑
e5

“Field experiments were conducted in two successive seasons, at the Agricultural Research Center, Giza, Egypt”

✓ located verbatim in the source · abstract, characters 10–118 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Foliar potassium at different concentrations tended to increase seed oil content.

Taxon
Gossypium barbadenseGossypium barbadensee0
Material
Giza 86e0
Treatment
application of potassium at different concentrationse3
Outcome
seed oil contente3
Direction
increasee3
Qualifier
tended toe3
Setting
Giza, Egypte5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Egyptian cotton cultivar “Giza 86 (Gossypium barbadense)”

✓ located verbatim in the source · abstract, characters 676–732 · show in text ↑
e3

“The seed oil content tended to decrease when the high N-rate was applied, but tended to increase with the application of potassium at different concentrations and Pix”

✓ located verbatim in the source · abstract, characters 1170–1336 · show in text ↑
e5

“Field experiments were conducted in two successive seasons, at the Agricultural Research Center, Giza, Egypt”

✓ located verbatim in the source · abstract, characters 10–118 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

The growth retardant Pix tended to increase seed oil content.

Taxon
Gossypium barbadenseGossypium barbadensee0
Material
Giza 86e0
Treatment
Pixe3
Outcome
seed oil contente3
Direction
increasee3
Qualifier
tended toe3
Setting
Giza, Egypte5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Egyptian cotton cultivar “Giza 86 (Gossypium barbadense)”

✓ located verbatim in the source · abstract, characters 676–732 · show in text ↑
e3

“The seed oil content tended to decrease when the high N-rate was applied, but tended to increase with the application of potassium at different concentrations and Pix”

✓ located verbatim in the source · abstract, characters 1170–1336 · show in text ↑
e5

“Field experiments were conducted in two successive seasons, at the Agricultural Research Center, Giza, Egypt”

✓ located verbatim in the source · abstract, characters 10–118 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Potassium concentrations differed in their effects on the studied characters of cotton.

Taxon
Gossypium barbadenseGossypium barbadensee0
Treatment
potassium concentrationse4
Outcome
effects on the studied characterse4
Qualifier
some differencese4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Egyptian cotton cultivar “Giza 86 (Gossypium barbadense)”

✓ located verbatim in the source · abstract, characters 676–732 · show in text ↑
e4

“There were some differences between potassium concentrations regarding their effects on the studied characters”

✓ located verbatim in the source · abstract, characters 1338–1448 · show in text ↑

plant growth retardant · yield · Gossypium barbadense (Egyptian cotton)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

potassium · quality: protein · Gossypium barbadense (Egyptian cotton)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

potassium · yield · Gossypium barbadense (Egyptian cotton)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

nitrogen · yield · Gossypium barbadense (Egyptian cotton)Results agree

9 papers: 9 positive, 0 negative or no effect

8 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 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.