Paper · 2012 · American Journal of Plant Sciences

The Effect of Herbicides on the Egyptian Broomrape (Orobanche aegyptiaca) in Tomato Fields

Ibrahim Ghannam; Mohammad Al-Masri; Radwan Barakat

7
claims
7
verbatim quotes
13
citations
2
research areas
✓
Open access · cc-by

Abstract

The Egyptian broomrape (Orobanche aegyptiaca Pers.) is an obligate holoparasitic weed that causes severe damage to many important vegetable and field crops. In this investigation, three herbicides; chlorsulfuron, triasulfuron and imazaquin were tested to evaluate their efficiency in controlling the tomato broomrape. The herbicides significantly reduced the broomrape parasitizing tomato plants growing in pots, irrigated open field and under greenhouse conditions as foliar spray at the concentrations (0.5 - 10 μg·ml-1) without visible injury effect on the plants. In the pot experiments, triasulfuron increased the dead spikes from 77% to 84%; chlorsulfuron from 51% to 84% and imazaquin from 52% to 84% at the concentrations (0.5 - 5 μg·ml-1) compared with the control. In the irrigated open field experiment, the herbicides were less efficient in controlling the broomrape. The dead spikes increased from 10.5% to 29.1% at the concentrations (1 - 5 μg·ml-1) compared with the control. In the greenhouse experiment, the herbicides were more effective than open field and the dead spikes were increased from 30 to 68% at the concentrations 5 and 10 μg·ml-1. In conclusion, the foliar application of herbicides were able to increase the broomrape dead spikes attached to the tomato plants at the concentrations (3 - 5 μg·ml-1) without visible negative effect on tomato plants.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Triasulfuron increased dead broomrape spikes from 77% to 84% in pots.

Treatment
triasulfurone0
Outcome
dead spikese0
Direction
increasede0
Value
77% to 84%e0
Setting
pot experimentse0

Not reportedTaxonComparator

Verbatim

e0

“In the pot experiments, triasulfuron increased the dead spikes from 77% to 84%”

✓ located verbatim in the source · abstract, characters 568–646 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chlorsulfuron increased dead broomrape spikes from 51% to 84% in pots.

Treatment
chlorsulfurone0
Value
51% to 84%e0

Not reportedTaxonComparatorOutcomeDirection

Verbatim

e0

“chlorsulfuron from 51% to 84%”

✓ located verbatim in the source · abstract, characters 648–677 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Imazaquin increased dead broomrape spikes from 52% to 84% in pots.

Treatment
imazaquine0
Value
52% to 84%e0

Not reportedTaxonComparatorOutcomeDirection

Verbatim

e0

“imazaquin from 52% to 84%”

✓ located verbatim in the source · abstract, characters 682–707 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In the irrigated field, herbicides increased dead broomrape spikes from 10.5% to 29.1%.

Treatment
herbicidese0
Outcome
dead spikese0
Direction
increasede0
Value
10.5% to 29.1%e0
Comparator
controle0
Setting
irrigated open fielde0

Not reportedTaxon

Verbatim

e0

“In the irrigated open field experiment, the herbicides were less efficient in controlling the broomrape. The dead spikes increased from 10.5% to 29.1% at the concentrations (1 - 5 μg·ml-1) compared with the control”

✓ located verbatim in the source · abstract, characters 775–989 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In the greenhouse, herbicides increased dead broomrape spikes from 30 to 68%.

Treatment
herbicidese0
Outcome
dead spikese0
Direction
increasede0
Value
30 to 68%e0
Comparator
open fielde0
Setting
greenhousee0

Not reportedTaxon

Verbatim

e0

“In the greenhouse experiment, the herbicides were more effective than open field and the dead spikes were increased from 30 to 68% at the concentrations 5 and 10 μg·ml-1”

✓ located verbatim in the source · abstract, characters 991–1160 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Herbicide application suppressed broomrape without visible tomato injury.

Treatment
herbicidese0
Interactor
broomrapee0parasite
Outcome
broomrape parasitizing tomato plantse0
Direction
reducede0
Qualifier
without visible injury effect on the plantse0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The herbicides significantly reduced the broomrape parasitizing tomato plants growing in pots, irrigated open field and under greenhouse conditions as foliar spray at the concentrations (0.5 - 10 μg·ml-1) without visible injury effect on the plants”

✓ located verbatim in the source · abstract, characters 318–566 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors conclude that foliar herbicides at 3-5 μg·ml-1 can increase dead broomrape spikes without visible tomato injury.

Treatment
foliar application of herbicidese0
Interactor
broomrapee0parasite
Outcome
increase the broomrape dead spikese0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the foliar application of herbicides were able to increase the broomrape dead spikes attached to the tomato plants at the concentrations (3 - 5 μg·ml-1) without visible negative effect on tomato plants”

✓ located verbatim in the source · abstract, characters 1177–1378 · show in text ↑

herbicide · organism · Solanum lycopersicum (tomato)Positive and negative results

5 papers: 4 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

herbicide · yield · Solanum lycopersicum (tomato)Positive and negative results

45 papers: 28 positive, 17 negative or no effect

27 papers in the same direction as this paper · 14 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

41 papers more in this group

See all 45 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.