Paper · 1997 · Egyptian Journal of Agricultural Research

EFFECT OF ROW WIDTH, HILL SPACING AND NITROGEN LEVELS ON SEED COTTON YIELD OF GIZA 83 COTTON CULTIVAR

KARM K. I. ABDEL-MALAK; FOUAD E. RADWAN; SAMER I. BASLIOUS

6
claims
12
verbatim quotes
5
citations
1
research areas
—
Not open access

Abstract

Two field experiments were carried out at Mallawi Agricultural Re­search Station, Middle Egypt, during 1993 and 1994 seasons using the Egyptian cotton Giza 83 (G.barbadense L.) to study the effect of row width, hill spacing, i.e. plant population, by planting cotton on the two sides of row at spacing of 70, or 90 cm between rows with 25, 30 and 35 cm between hills, compared with 60 cm between' rows and 20 cm between hills, under two nitrogen levels (60 and 80 kg N/fed.). The ex­perimental design was split plot with four replications. The results indicated that : number of fruiting branches/plant, number of open boils/plant, boll weight and plant yield increased by de­creasing plant density (53.333) plants/fed.). Plant stand at picking in­creased by narrow spacing between hills, while percentage of plants sur­vival increased in case of wider planting. The highest seed cotton yield/ fed. was obtained by planting cotton on the two sides of row 90 cm width and 30 cm between hills (62.222 plants/fed.). Nitrogen level had no significant effect on boll weight and plant stand at picking, while number of fruiting branches/plant, number of open bolls/plant, plant yield and seed cotton yield/fed. increased by raising nitrogen level up to 80 kg/fed.

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Claims 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Lower plant density increased fruiting branches, open bolls, boll weight and plant yield.

Treatment
de­creasing plant densitye0
Outcome
number of fruiting branches/plant, number of open boils/plant, boll weight and plant yielde0
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

e0

“number of fruiting branches/plant, number of open boils/plant, boll weight and plant yield increased by de­creasing plant density (53.333) plants/fed.)”

✓ located verbatim in the source · abstract, characters 569–720 · show in text ↑
t0

“GIZA 83 COTTON CULTIVAR”

✓ located verbatim in the source · title, characters 78–101 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Narrow hill spacing increased plant stand at picking.

Treatment
narrow spacing between hillse0
Outcome
Plant stand at pickinge0
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

e0

“Plant stand at picking in­creased by narrow spacing between hills”

✓ located verbatim in the source · abstract, characters 722–787 · show in text ↑
t0

“GIZA 83 COTTON CULTIVAR”

✓ located verbatim in the source · title, characters 78–101 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Wider planting increased plant survival percentage.

Treatment
wider plantinge0
Outcome
percentage of plants sur­vivale0
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

e0

“percentage of plants sur­vival increased in case of wider planting”

✓ located verbatim in the source · abstract, characters 795–861 · show in text ↑
t0

“GIZA 83 COTTON CULTIVAR”

✓ located verbatim in the source · title, characters 78–101 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Rows 90 cm wide and hills 30 cm apart gave the highest seed cotton yield per feddan.

Treatment
planting cotton on the two sides of row 90 cm width and 30 cm between hillse0
Outcome
seed cotton yield/ fed.e0
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

e0

“The highest seed cotton yield/ fed. was obtained by planting cotton on the two sides of row 90 cm width and 30 cm between hills (62.222 plants/fed.)”

✓ located verbatim in the source · abstract, characters 863–1011 · show in text ↑
t0

“GIZA 83 COTTON CULTIVAR”

✓ located verbatim in the source · title, characters 78–101 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Nitrogen level had no significant effect on boll weight or stand at picking.

Treatment
Nitrogen levele0
Outcome
boll weight and plant stand at pickinge0
Direction
no significant effecte0

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

e0

“Nitrogen level had no significant effect on boll weight and plant stand at picking”

✓ located verbatim in the source · abstract, characters 1013–1095 · show in text ↑
t0

“GIZA 83 COTTON CULTIVAR”

✓ located verbatim in the source · title, characters 78–101 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Raising nitrogen to 80 kg/fed. increased fruiting branches, open bolls, plant yield and seed cotton yield.

Treatment
raising nitrogen level up to 80 kg/fed.e0
Outcome
number of fruiting branches/plant, number of open bolls/plant, plant yield and seed cotton yield/fed.e0
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

e0

“number of fruiting branches/plant, number of open bolls/plant, plant yield and seed cotton yield/fed. increased by raising nitrogen level up to 80 kg/fed.”

✓ located verbatim in the source · abstract, characters 1103–1257 · show in text ↑
t0

“GIZA 83 COTTON CULTIVAR”

✓ located verbatim in the source · title, characters 78–101 · show in text ↑

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

46 papers: 39 positive, 7 negative or no effect

38 papers in the same direction as this paper · 7 in the opposite direction

  1. no effect
  2. no effect
  3. negative

42 papers more in this group

See all 46 papers →

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

171 papers: 130 positive, 41 negative or no effect

129 papers in the same direction as this paper · 38 in the opposite direction · 3 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

167 papers more in this group

See all 171 papers →

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

343 papers: 286 positive, 57 negative or no effect

285 papers in the same direction as this paper · 53 in the opposite direction · 4 reporting no difference from an alternative

  1. positive
  2. no effect
  3. no effect

339 papers more in this group

See all 343 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.