Paper · 1994 · Weed Science

Interference Durations of Bearded Sprangletop (Leptochloa fascicularis) in Rice (Oryza sativa)

V. Frank Carey; Roy J. Smith; Ronald E. Talbert

9
claims
18
verbatim quotes
11
citations
2
research areas
—
Not open access

Abstract

Effects of bearded sprangletop interference durations on Lemont and Newbonnet rice cultivars were studied. Interference durations of 63, 70, and 130 d after rice emergence reduced Lemont grain yields 11, 21, and 50%, respectively, and lowered Newbonnet grain yields 11, 13, and 37%, respectively. Interference durations of 21 to 56 d after emergence did not reduce grain yields of either cultivar. Bearded sprangletop grown in Lemont rice produced more biomass than that in Newbonnet. Season-long interference reduced plant height and straw dry weight of Lemont more than that of Newbonnet.

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Claims 9

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Bearded sprangletop interference for 63 d after rice emergence reduced Lemont grain yield by 11%.

Material
Lemonte1
Treatment
Interference durations of 63, 70, and 130 d after rice emergencee1
Interactor
Bearded Sprangletopt0weed
Outcome
grain yieldse1
Direction
reducede1
Value
11e1

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Interference Durations of Bearded Sprangletop (Leptochloa fascicularis) in Rice (Oryza sativa)”

✓ located verbatim in the source · title, characters 0–94 · show in text ↑
e1

“Interference durations of 63, 70, and 130 d after rice emergence reduced Lemont grain yields 11, 21, and 50%, respectively, and lowered Newbonnet grain yields 11, 13, and 37%, respectively”

✓ located verbatim in the source · abstract, characters 107–295 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Bearded sprangletop interference for 70 d after rice emergence reduced Lemont grain yield by 21%.

Material
Lemonte1
Treatment
Interference durations of 63, 70, and 130 d after rice emergencee1
Interactor
Bearded Sprangletopt0weed
Outcome
grain yieldse1
Direction
reducede1
Value
21e1

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Interference Durations of Bearded Sprangletop (Leptochloa fascicularis) in Rice (Oryza sativa)”

✓ located verbatim in the source · title, characters 0–94 · show in text ↑
e1

“Interference durations of 63, 70, and 130 d after rice emergence reduced Lemont grain yields 11, 21, and 50%, respectively, and lowered Newbonnet grain yields 11, 13, and 37%, respectively”

✓ located verbatim in the source · abstract, characters 107–295 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Bearded sprangletop interference for 130 d after rice emergence reduced Lemont grain yield by 50%.

Material
Lemonte1
Treatment
Interference durations of 63, 70, and 130 d after rice emergencee1
Interactor
Bearded Sprangletopt0weed
Outcome
grain yieldse1
Direction
reducede1
Value
50%e1

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Interference Durations of Bearded Sprangletop (Leptochloa fascicularis) in Rice (Oryza sativa)”

✓ located verbatim in the source · title, characters 0–94 · show in text ↑
e1

“Interference durations of 63, 70, and 130 d after rice emergence reduced Lemont grain yields 11, 21, and 50%, respectively, and lowered Newbonnet grain yields 11, 13, and 37%, respectively”

✓ located verbatim in the source · abstract, characters 107–295 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Bearded sprangletop interference for 63 d after rice emergence lowered Newbonnet grain yield by 11%.

Material
Newbonnete1
Treatment
Interference durations of 63, 70, and 130 d after rice emergencee1
Interactor
Bearded Sprangletopt0weed
Outcome
grain yieldse1
Direction
lowerede1
Value
11e1

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Interference Durations of Bearded Sprangletop (Leptochloa fascicularis) in Rice (Oryza sativa)”

✓ located verbatim in the source · title, characters 0–94 · show in text ↑
e1

“Interference durations of 63, 70, and 130 d after rice emergence reduced Lemont grain yields 11, 21, and 50%, respectively, and lowered Newbonnet grain yields 11, 13, and 37%, respectively”

✓ located verbatim in the source · abstract, characters 107–295 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Bearded sprangletop interference for 70 d after rice emergence lowered Newbonnet grain yield by 13%.

Material
Newbonnete1
Treatment
Interference durations of 63, 70, and 130 d after rice emergencee1
Interactor
Bearded Sprangletopt0weed
Outcome
grain yieldse1
Direction
lowerede1
Value
13e1

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Interference Durations of Bearded Sprangletop (Leptochloa fascicularis) in Rice (Oryza sativa)”

✓ located verbatim in the source · title, characters 0–94 · show in text ↑
e1

“Interference durations of 63, 70, and 130 d after rice emergence reduced Lemont grain yields 11, 21, and 50%, respectively, and lowered Newbonnet grain yields 11, 13, and 37%, respectively”

✓ located verbatim in the source · abstract, characters 107–295 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Bearded sprangletop interference for 130 d after rice emergence lowered Newbonnet grain yield by 37%.

Material
Newbonnete1
Treatment
Interference durations of 63, 70, and 130 d after rice emergencee1
Interactor
Bearded Sprangletopt0weed
Outcome
grain yieldse1
Direction
lowerede1
Value
37%e1

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Interference Durations of Bearded Sprangletop (Leptochloa fascicularis) in Rice (Oryza sativa)”

✓ located verbatim in the source · title, characters 0–94 · show in text ↑
e1

“Interference durations of 63, 70, and 130 d after rice emergence reduced Lemont grain yields 11, 21, and 50%, respectively, and lowered Newbonnet grain yields 11, 13, and 37%, respectively”

✓ located verbatim in the source · abstract, characters 107–295 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Bearded sprangletop interference for 21 to 56 d after emergence did not reduce grain yield of either cultivar.

Treatment
Interference durations of 21 to 56 d after emergencee2
Interactor
Bearded Sprangletopt0weed
Outcome
grain yieldse2
Direction
no_changeinferrede2

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Interference Durations of Bearded Sprangletop (Leptochloa fascicularis) in Rice (Oryza sativa)”

✓ located verbatim in the source · title, characters 0–94 · show in text ↑
e2

“Interference durations of 21 to 56 d after emergence did not reduce grain yields of either cultivar”

✓ located verbatim in the source · abstract, characters 297–396 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Bearded sprangletop grown in Lemont rice produced more biomass than in Newbonnet.

Material
Lemonte3
Interactor
Bearded sprangletope3weedt0
Outcome
biomasse3
Comparator
Newbonnete3

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Interference Durations of Bearded Sprangletop (Leptochloa fascicularis) in Rice (Oryza sativa)”

✓ located verbatim in the source · title, characters 0–94 · show in text ↑
e3

“Bearded sprangletop grown in Lemont rice produced more biomass than that in Newbonnet”

✓ located verbatim in the source · abstract, characters 398–483 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Season-long interference reduced plant height and straw dry weight of Lemont more than those of Newbonnet.

Material
Lemonte4
Treatment
Season-long interferencee4
Interactor
Bearded Sprangletopt0weed
Outcome
plant height and straw dry weighte4
Direction
reducede4
Comparator
Newbonnete4

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Interference Durations of Bearded Sprangletop (Leptochloa fascicularis) in Rice (Oryza sativa)”

✓ located verbatim in the source · title, characters 0–94 · show in text ↑
e4

“Season-long interference reduced plant height and straw dry weight of Lemont more than that of Newbonnet”

✓ located verbatim in the source · abstract, characters 485–589 · show in text ↑

climate site · growth · Oryza sativa (rice)Positive and negative results

30 papers: 23 positive, 7 negative or no effect

6 papers in the same direction as this paper · 23 in the opposite direction

  1. positive
  2. positive
  3. positive

26 papers more in this group

See all 30 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.