Paper · 1986 · Journal of Agronomy and Crop Science

Effect of Sowing Date and Weed Control on Grain Yield and its Components in Some Wheat Cultivars

A. F. Ibrahim; A.‐A. Kandil; A. H. El‐Hattab; et al.

11
claims
25
verbatim quotes
9
citations
2
research areas
—
Not open access

Abstract

I. Abstract The influence of sowing dates (Oct. 21, Nov. 10, Nov. 30 and Dec. 21), weed control treatments using Brominal, Tribunil herbicides as compared to hand weeding and unweeded treatments on the yield performance of newly released spring wheat varieties ( Sakha 8, Sakha 61 and Giza 157 was studied during 1980/81, 1981/82 and 1982/83 seasons. According to the combined analysis the results could be summarized as follows: Sowing date had significant effect on grain yield and some other characters such as plant height, days to heading and maturity, weight of grains per spike and 1000‐grain weight. Highest grain yield was obtained when wheat was sown during Nov. Dry weight of weeds was not significantly affected by sowing date. Differences between cultivars reached to the significant level in plant height, spike length, number of grains per spike and 1000‐grain weight. Weed control treatments had significant effect on most studied traits. Grain yield was nearly the same when Tribunil (3.5 kg/ha), Brominal (2.4 1/ha) or hand weeding was used. Grain yield of unweed treatment decreased by 10.9%, 10.9% and 9.8% compared to the former treatments, respectively. Data showed that Tribunil was more effective on both grassy and broad leaved weeds, however, Brominal was effective only on broad leaved.

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Claims 11

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Sowing date significantly affected grain yield and developmental and grain traits.

Treatment
Sowing datee0
Outcome
grain yielde0

Not reportedComparatorDirection

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Sowing date had significant effect on grain yield and some other characters such as plant height, days to heading and maturity, weight of grains per spike and 1000‐grain weight”

✓ located verbatim in the source · abstract, characters 430–606 · show in text ↑
t0

“Wheat Cultivars”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

November sowing gave the highest wheat grain yield.

Treatment
sown during Nove0
Outcome
grain yielde0
Direction
Higheste0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Highest grain yield was obtained when wheat was sown during Nov”

✓ located verbatim in the source · abstract, characters 608–671 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Sowing date did not significantly affect weed dry weight.

Treatment
sowing datee0
Interactor
weedse0weed
Outcome
Dry weight of weedse0

Not reportedComparatorDirection

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Dry weight of weeds was not significantly affected by sowing date”

✓ located verbatim in the source · abstract, characters 673–738 · show in text ↑
t0

“Wheat Cultivars”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Cultivars differed significantly in plant height, spike length, grain number, and grain weight.

Material
cultivarse0
Outcome
plant height, spike lengthe0

Not reportedDirection

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Differences between cultivars reached to the significant level in plant height, spike length, number of grains per spike and 1000‐grain weight”

✓ located verbatim in the source · abstract, characters 740–882 · show in text ↑
t0

“Wheat Cultivars”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Weed control significantly affected most traits.

Treatment
Weed control treatmentse0
Interactor
Weede0weed
Outcome
most studied traitse0

Not reportedComparatorDirection

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Weed control treatments had significant effect on most studied traits”

✓ located verbatim in the source · abstract, characters 884–953 · show in text ↑
t0

“Wheat Cultivars”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Tribunil, Brominal, and hand weeding gave nearly the same grain yield.

Treatment
Tribunil (3.5 kg/ha)e0
Outcome
Grain yielde0
Direction
nearly the samee0
Comparator
Brominal (2.4 1/ha) or hand weedinge0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Grain yield was nearly the same when Tribunil (3.5 kg/ha), Brominal (2.4 1/ha) or hand weeding was used”

✓ located verbatim in the source · abstract, characters 955–1058 · show in text ↑
t0

“Wheat Cultivars”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Unweeded wheat had 10.9% lower grain yield than Tribunil treatment.

Treatment
unweed treatmente0
Outcome
Grain yielde0
Direction
decreasede0
Value
10.9%e0
Comparator
Tribunil (3.5 kg/ha)e1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Grain yield of unweed treatment decreased by 10.9%, 10.9% and 9.8% compared to the former treatments, respectively”

✓ located verbatim in the source · abstract, characters 1060–1174 · show in text ↑
e1

“Tribunil (3.5 kg/ha), Brominal (2.4 1/ha) or hand weeding”

✓ located verbatim in the source · abstract, characters 992–1049 · show in text ↑
t0

“Wheat Cultivars”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Unweeded wheat had 10.9% lower grain yield than Brominal treatment.

Treatment
unweed treatmente0
Outcome
Grain yielde0
Direction
decreasede0
Value
10.9%e0
Comparator
Brominal (2.4 1/ha)e1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Grain yield of unweed treatment decreased by 10.9%, 10.9% and 9.8% compared to the former treatments, respectively”

✓ located verbatim in the source · abstract, characters 1060–1174 · show in text ↑
e1

“Tribunil (3.5 kg/ha), Brominal (2.4 1/ha) or hand weeding”

✓ located verbatim in the source · abstract, characters 992–1049 · show in text ↑
t0

“Wheat Cultivars”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Unweeded wheat had 9.8% lower grain yield than hand weeding.

Treatment
unweed treatmente0
Outcome
Grain yielde0
Direction
decreasede0
Value
9.8%e0
Comparator
hand weedinge1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Grain yield of unweed treatment decreased by 10.9%, 10.9% and 9.8% compared to the former treatments, respectively”

✓ located verbatim in the source · abstract, characters 1060–1174 · show in text ↑
e1

“Tribunil (3.5 kg/ha), Brominal (2.4 1/ha) or hand weeding”

✓ located verbatim in the source · abstract, characters 992–1049 · show in text ↑
t0

“Wheat Cultivars”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tribunil controlled grassy and broad-leaved weeds more effectively.

Treatment
Tribunile0
Interactor
weedse0weed
Outcome
grassy and broad leaved weedse0
Direction
more effectivee0
Comparator
Brominale0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Tribunil was more effective on both grassy and broad leaved weeds, however, Brominal was effective only on broad leaved”

✓ located verbatim in the source · abstract, characters 1193–1312 · show in text ↑
t0

“Wheat Cultivars”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Brominal was effective only against broad-leaved weeds.

Treatment
Brominale0
Interactor
weedse1weed
Outcome
broad leaved weedse1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Brominal was effective only on broad leaved”

✓ located verbatim in the source · abstract, characters 1269–1312 · show in text ↑
e1

“broad leaved weeds”

✓ located verbatim in the source · abstract, characters 1240–1258 · show in text ↑
t0

“Wheat Cultivars”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑

sowing time · weed · Triticum aestivum (wheat)Positive and negative results

10 papers: 4 positive, 6 negative or no effect

5 papers in the same direction as this paper · 4 in the opposite direction

  1. positive
  2. positive
  3. positive

6 papers more in this group

See all 10 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.