Paper · 1993 · Journal of the American Oil Chemists Society

Effect of plant population densities and application of growth retardants on cottonseed yield and quality

Zakaria M. Sawan; Ahmad E. Basyony; Willis L. McCuistion; et al.

20
claims
40
verbatim quotes
23
citations
2
research areas
—
Not open access

Abstract

In field trials at Giza in 1986–1987, cotton cv. Giza 75 was sown at 166,000, 222,000 and 333,000 plants/ha and given foliar applications of 0, 250, 500 and 750 ppm Cycocel (chlormequat) or Alar (daminozide). As plant density increased, there was a decrease in cottonseed yield/ha, seed index, seed protein content, oil and protein yields/ha, oil refractive index, iodine value, unsaponifiable matter and unsaturated fatty acids (myristoleic, oleic and linoleic). In contrast, as plant density increased, there was an increase in oil acid value, saponification value and saturated fatty acids (caprylic, capric, lauric, tridecylic, myristic, palmitic and stearic). Application of Cycocel or Alar increased cottonseed yield/ha, seed index, seed protein content and oil and protein yield/ha, oil refractive index, iodine value, unsaponifiable matter and unsaturated fatty acids. However, there was a decrease in oil acid value and saponification value. There were no differences among application rates of either chemical on cottonseed yield/ha. The highest oil and protein yield/ha was observed with Cycocel applied at 750 ppm, followed by Alar at 250 ppm. Applying Cycocel at 250 ppm gave the highest oil refractive index and unsaponifiable matter, and the lowest acid value. Application of Alar at 250 ppm gave the highest oil iodine value and the lowest saponification value, and also at 250 or 500 ppm gave the highest oil unsaturated fatty acid composition. Interaction was positive between plant density, Cycocel and Alar and affected cottonseed yield/ha. The 166,000 plants/ha and application of Cycocel at 750 and Alar at 250 ppm are recommended for the improvement of cottonseed yield and quality.

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 20

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing plant density reduced cottonseed yield per hectare.

Treatment
plant densitye0
Outcome
cottonseed yield/hae0
Direction
decreasee0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“As plant density increased, there was a decrease in cottonseed yield/ha”

✓ located verbatim in the source · abstract, characters 209–280 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing plant density reduced seed index and protein content.

Treatment
plant densitye0
Outcome
seed index, seed protein contente0
Direction
decreasee0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“As plant density increased, there was a decrease in cottonseed yield/ha, seed index, seed protein content”

✓ located verbatim in the source · abstract, characters 209–314 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing plant density reduced oil and protein yields per hectare.

Treatment
plant densitye0
Outcome
oil and protein yields/hae0
Direction
decreasee0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“As plant density increased, there was a decrease in cottonseed yield/ha, seed index, seed protein content, oil and protein yields/ha”

✓ located verbatim in the source · abstract, characters 209–341 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing plant density reduced oil refractive index, iodine value and unsaponifiable matter.

Treatment
plant densitye0
Outcome
oil refractive index, iodine value, unsaponifiable mattere0
Direction
decreasee0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“As plant density increased, there was a decrease in cottonseed yield/ha, seed index, seed protein content, oil and protein yields/ha, oil refractive index, iodine value, unsaponifiable matter”

✓ located verbatim in the source · abstract, characters 209–400 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing plant density reduced unsaturated fatty acids.

Treatment
plant densitye0
Outcome
unsaturated fatty acids (myristoleic, oleic and linoleic)e0
Direction
decreasee0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“As plant density increased, there was a decrease in cottonseed yield/ha, seed index, seed protein content, oil and protein yields/ha, oil refractive index, iodine value, unsaponifiable matter and unsaturated fatty acids (myristoleic, oleic and linoleic)”

✓ located verbatim in the source · abstract, characters 209–462 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Increasing plant density raised oil acid and saponification values.

Treatment
plant densitye0
Outcome
oil acid value, saponification valuee0
Direction
increasee0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“as plant density increased, there was an increase in oil acid value, saponification value”

✓ located verbatim in the source · abstract, characters 477–566 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Increasing plant density raised saturated fatty acids.

Treatment
plant densitye0
Outcome
saturated fatty acids (caprylic, capric, lauric, tridecylic, myristic, palmitic and stearic)e0
Direction
increasee0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“as plant density increased, there was an increase in oil acid value, saponification value and saturated fatty acids (caprylic, capric, lauric, tridecylic, myristic, palmitic and stearic)”

✓ located verbatim in the source · abstract, characters 477–663 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cycocel increased cottonseed yield and seed index.

Treatment
Cycocele0
Outcome
cottonseed yield/ha, seed indexe0
Direction
increasede0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“Application of Cycocel or Alar increased cottonseed yield/ha, seed index”

✓ located verbatim in the source · abstract, characters 665–737 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Alar increased cottonseed yield and seed index.

Treatment
Alare0
Outcome
cottonseed yield/ha, seed indexe0
Direction
increasede0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“Application of Cycocel or Alar increased cottonseed yield/ha, seed index”

✓ located verbatim in the source · abstract, characters 665–737 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cycocel increased seed protein content and oil and protein yield.

Treatment
Cycocele0
Outcome
seed protein content and oil and protein yield/hae0
Direction
increasede0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“Application of Cycocel or Alar increased cottonseed yield/ha, seed index, seed protein content and oil and protein yield/ha”

✓ located verbatim in the source · abstract, characters 665–788 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Alar increased seed protein content and oil and protein yield.

Treatment
Alare0
Outcome
seed protein content and oil and protein yield/hae0
Direction
increasede0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“Application of Cycocel or Alar increased cottonseed yield/ha, seed index, seed protein content and oil and protein yield/ha”

✓ located verbatim in the source · abstract, characters 665–788 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cycocel increased oil refractive index, iodine value and unsaponifiable matter.

Treatment
Cycocele0
Outcome
oil refractive index, iodine value, unsaponifiable mattere0
Direction
increasede0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“Application of Cycocel or Alar increased cottonseed yield/ha, seed index, seed protein content and oil and protein yield/ha, oil refractive index, iodine value, unsaponifiable matter”

✓ located verbatim in the source · abstract, characters 665–847 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Alar increased oil refractive index, iodine value and unsaponifiable matter.

Treatment
Alare0
Outcome
oil refractive index, iodine value, unsaponifiable mattere0
Direction
increasede0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“Application of Cycocel or Alar increased cottonseed yield/ha, seed index, seed protein content and oil and protein yield/ha, oil refractive index, iodine value, unsaponifiable matter”

✓ located verbatim in the source · abstract, characters 665–847 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cycocel increased unsaturated fatty acids and reduced oil acid and saponification values.

Treatment
Cycocele0
Outcome
unsaturated fatty acidse0
Direction
increasede0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“Application of Cycocel or Alar increased cottonseed yield/ha, seed index, seed protein content and oil and protein yield/ha, oil refractive index, iodine value, unsaponifiable matter and unsaturated fatty acids. However, there was a decrease in oil acid value and saponification value.”

✓ located verbatim in the source · abstract, characters 665–950 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Alar increased unsaturated fatty acids.

Treatment
Alare0
Outcome
unsaturated fatty acidse0
Direction
increasede0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“Application of Cycocel or Alar increased cottonseed yield/ha, seed index, seed protein content and oil and protein yield/ha, oil refractive index, iodine value, unsaponifiable matter and unsaturated fatty acids”

✓ located verbatim in the source · abstract, characters 665–875 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Oil acid and saponification values decreased with growth retardant application.

Outcome
oil acid value and saponification valuee0
Direction
decreasee0

Not reportedTreatmentComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“However, there was a decrease in oil acid value and saponification value.”

✓ located verbatim in the source · abstract, characters 877–950 · show in text ↑
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Cottonseed yield did not differ among application rates of either chemical.

Treatment
application rates of either chemicale0
Outcome
cottonseed yield/hae0
Direction
no differencese0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“There were no differences among application rates of either chemical on cottonseed yield/ha.”

✓ located verbatim in the source · abstract, characters 951–1043 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cycocel at 750 ppm produced the highest oil and protein yield per hectare, followed by Alar at 250 ppm.

Treatment
Cycocel applied at 750 ppme0
Outcome
oil and protein yield/hae0
Direction
higheste0
Comparator
Alar at 250 ppme0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“The highest oil and protein yield/ha was observed with Cycocel applied at 750 ppm, followed by Alar at 250 ppm.”

✓ located verbatim in the source · abstract, characters 1044–1155 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cycocel at 250 ppm gave the highest refractive index and unsaponifiable matter and the lowest acid value.

Treatment
Cycocel at 250 ppme0
Outcome
oil refractive index and unsaponifiable mattere0
Direction
higheste0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“Applying Cycocel at 250 ppm gave the highest oil refractive index and unsaponifiable matter, and the lowest acid value.”

✓ located verbatim in the source · abstract, characters 1156–1275 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Alar at 250 ppm gave the highest iodine value and lowest saponification value.

Treatment
Alar at 250 ppme0
Outcome
oil iodine valuee0
Direction
higheste0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“cottonseed yield and quality”

✓ located verbatim in the source · title, characters 77–105 · show in text ↑
e0

“Application of Alar at 250 ppm gave the highest oil iodine value and the lowest saponification value”

✓ located verbatim in the source · abstract, characters 1276–1376 · show in text ↑

chlormequat chloride · quality: oil · Gossypium hirsutum (cotton)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

1 paper in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. no effect
See all 3 papers →

chlormequat chloride · yield · Gossypium hirsutum (cotton)Positive and negative results

12 papers: 10 positive, 2 negative or no effect

9 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. negative
  3. positive

8 papers more in this group

See all 12 papers →

Daminozide · yield · Gossypium hirsutum (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 →

density · quality: protein · Gossypium hirsutum (cotton)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 papers →

density · molecular: metabolites · Gossypium hirsutum (cotton)Positive and negative results

3 papers: 1 positive, 2 negative or no effect

1 paper in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. no effect
See all 3 papers →

density · quality: oil · Gossypium hirsutum (cotton)Positive and negative results

6 papers: 2 positive, 4 negative or no effect

3 papers in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. positive
  3. negative

2 papers more in this group

See all 6 papers →

density · yield · Gossypium hirsutum (cotton)Positive and negative results

171 papers: 130 positive, 41 negative or no effect

40 papers in the same direction as this paper · 130 in the opposite direction

  1. positive
  2. positive
  3. positive

167 papers more in this group

See all 171 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.