Paper · 2012 · Journal of Science and Technology

Critical Period of Weed Interference in Sesame (Sesamum indicum L.) in Dongola Locality, Northern State, Sudan

Mukhtar Abdelaziz Mohamed; Suhair M . Elamin

5
claims
10
verbatim quotes
2
citations
2
research areas
—
Not open access

Abstract

A field experiment was conducted at Altraa village, Sherg Elneel Unit, Dongola Locality, Northern State, Sudan, during two consecutive summer seasons of 2010 and 2011 to determine yield loss in sesame (Sesamum indicum L.) inflicted by weeds and to identify the critical period for weed interference. Sesame, cultivar Promo, was sown on 23 June in both seasons. A set of weeding regimes comprised of 12 treatments was arranged in randomized complete block design, with four replicates. The crop was kept weed-free for the first 2, 4, 6, 8 or 10 weeks after crop sowing and then remained weedy till harvest or kept weedy for the same periods and then remained weed-free till harvest. Weed free and weedy treatments till harvest were included as controls for comparison. Combined analysis of both seasons indicated that unrestricted weed growth significantly reduced sesame seed yield by 53.2% compared to weed free full season treatment. Seed yield decreased as the weed infestation period increased. Number of leaves/plant was significantly reduced by 58.93% under full season weed infestation. The same trend was observed for the first capsule height from the soil surface, plant height, and number of branches/plant. The critical period of weed competition was found to be between 2-6 weeks after crop planting.

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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 5

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Full-season weed growth reduced sesame seed yield by 53.2%.

Treatment
unrestricted weed growthe0
Interactor
weede0weed
Outcome
sesame seed yielde0
Direction
reducede0
Value
53.2%e0
Comparator
weed free full season treatmente0

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

Sesamum indicum
Sesamum indicum · TaxonFranz Xaver · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“unrestricted weed growth significantly reduced sesame seed yield by 53.2% compared to weed free full season treatment”

✓ located verbatim in the source · abstract, characters 817–934 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Sesame seed yield fell as weed infestation lasted longer.

Treatment
weed infestation periode0
Interactor
weede0weed
Outcome
Seed yielde0
Direction
decreasede0

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

Sesamum indicum
Sesamum indicum · TaxonFranz Xaver · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Seed yield decreased as the weed infestation period increased”

✓ located verbatim in the source · abstract, characters 936–997 · show in text ↑
t0

“Sesame (Sesamum indicum L.)”

✓ located verbatim in the source · title, characters 40–67 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Full-season weeds reduced sesame leaves per plant by 58.93%.

Treatment
full season weed infestatione0
Interactor
weede0weed
Outcome
Number of leaves/plante0
Direction
reducede0
Value
58.93%e0

Not reportedComparator

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

Sesamum indicum
Sesamum indicum · TaxonFranz Xaver · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Number of leaves/plant was significantly reduced by 58.93% under full season weed infestation”

✓ located verbatim in the source · abstract, characters 999–1092 · show in text ↑
t0

“Sesame (Sesamum indicum L.)”

✓ located verbatim in the source · title, characters 40–67 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

First capsule height, plant height and branch number followed the same decreasing trend under weed infestation.

Treatment
full season weed infestatione1
Interactor
weede1weed
Outcome
first capsule height from the soil surface, plant height, and number of branches/plante0

Not reportedComparatorDirection

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

Sesamum indicum
Sesamum indicum · TaxonFranz Xaver · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The same trend was observed for the first capsule height from the soil surface, plant height, and number of branches/plant”

✓ located verbatim in the source · abstract, characters 1094–1216 · show in text ↑
e1

“under full season weed infestation”

✓ located verbatim in the source · abstract, characters 1058–1092 · show in text ↑
t0

“Sesame (Sesamum indicum L.)”

✓ located verbatim in the source · title, characters 40–67 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The critical weed competition period for sesame was 2-6 weeks after planting.

Interactor
weede0weed
Outcome
critical period of weed competitione0
Value
2-6 weekse0

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

Sesamum indicum
Sesamum indicum · TaxonFranz Xaver · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The critical period of weed competition was found to be between 2-6 weeks after crop planting”

✓ located verbatim in the source · abstract, characters 1218–1311 · show in text ↑
t0

“Sesame (Sesamum indicum L.)”

✓ located verbatim in the source · title, characters 40–67 · show in text ↑

climate site · growth · Sesamum indicum (sesame)Positive and negative results

4 papers: 2 positive, 2 negative or no effect

1 paper in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. positive
  3. negative
See all 4 papers →

infection · yield · Sesamum indicum (sesame)Positive and negative results

6 papers: 1 positive, 5 negative or no effect

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

  1. positive
  2. no effect
  3. negative

2 papers more in this group

See all 6 papers →

climate site · yield · Sesamum indicum (sesame)Positive and negative results

8 papers: 2 positive, 6 negative or no effect

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

  1. negative
  2. positive
  3. positive

4 papers more in this group

See all 8 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.