Paper · 2004 · Weed Technology

Imazethapyr at Different Rates and Timings in Drill- and Water-Seeded Imidazolinone-Tolerant Rice

Kristie J. Pellerin; Eric P. Webster

4
claims
9
verbatim quotes
50
citations
2
research areas
—
Not open access

Abstract

Imazethapyr applied to the soil at 0, 35, 53, 70, 87, 105, and 140 g ai/ha followed by (fb) early-postemergence (EPOST) or late-postemergence (LPOST) applications at 140, 105, 87, 70, 53, 35, and 0 g ai/ha, respectively, was evaluated for weed control, crop tolerance, and grain yield in imidazolinone-tolerant rice. In drill- and water-seeded rice, imazethapyr effectively controlled barnyardgrass 91 to 97% with a soil fb EPOST or LPOST application except when applied at 105 fb 35 g/ha EPOST at 49 d after late-postemergence treatment. Rice yields were 5,920 and 3,920 kg/ ha in the drill-seeded study with a single application of imazethapyr at 140 g/ha EPOST in 2000 and 2001, respectively. These yields were greater than or equal to those from treatments with two imazethapyr applications.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 4

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Imazethapyr applied to soil followed by early or late postemergence applications effectively controlled barnyardgrass (91–97%) in rice.

Treatment
soil fb EPOST or LPOST applicatione1
Interactor
barnyardgrassEchinochloa crus-gallie1weed
Outcome
controlled barnyardgrasse1
Direction
effectively controllede1
Value
91 to 97%e1
Qualifier
except when applied at 105 fb 35 g/ha EPOST at 49 d after late-postemergence treatmente1
Setting
drill- and water-seeded ricee1

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 ↗
Echinochloa crus-galli
Echinochloa crus-galli · InteractorMichael Becker · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Imazethapyr applied to the soil at 0, 35, 53, 70, 87, 105, and 140 g ai/ha followed by (fb) early-postemergence (EPOST) or late-postemergence (LPOST) applications at 140, 105, 87, 70, 53, 35, and 0 g ai/ha, respectively, was evaluated for weed control, crop tolerance, and grain yield in imidazolinone-tolerant rice”

✓ located verbatim in the source · abstract, characters 0–315 · show in text ↑
e1

“In drill- and water-seeded rice, imazethapyr effectively controlled barnyardgrass 91 to 97% with a soil fb EPOST or LPOST application except when applied at 105 fb 35 g/ha EPOST at 49 d after late-postemergence treatment”

✓ located verbatim in the source · abstract, characters 317–537 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Rice grain yield was 5,920 kg/ha in 2000 with a single imazethapyr application at 140 g/ha EPOST in drill-seeded rice.

Treatment
a single application of imazethapyr at 140 g/ha EPOSTe2
Outcome
Rice yieldse2
Value
5,920e2
Qualifier
in 2000e2
Setting
drill-seeded studye2

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

e0

“Imazethapyr applied to the soil at 0, 35, 53, 70, 87, 105, and 140 g ai/ha followed by (fb) early-postemergence (EPOST) or late-postemergence (LPOST) applications at 140, 105, 87, 70, 53, 35, and 0 g ai/ha, respectively, was evaluated for weed control, crop tolerance, and grain yield in imidazolinone-tolerant rice”

✓ located verbatim in the source · abstract, characters 0–315 · show in text ↑
e2

“Rice yields were 5,920 and 3,920 kg/ ha in the drill-seeded study with a single application of imazethapyr at 140 g/ha EPOST in 2000 and 2001, respectively”

✓ located verbatim in the source · abstract, characters 539–694 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Rice grain yield was 3,920 kg/ha in 2001 with a single imazethapyr application at 140 g/ha EPOST in drill-seeded rice.

Treatment
a single application of imazethapyr at 140 g/ha EPOSTe2
Outcome
Rice yieldse2
Value
3,920e2
Qualifier
2001e2
Setting
drill-seeded studye2

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

e0

“Imazethapyr applied to the soil at 0, 35, 53, 70, 87, 105, and 140 g ai/ha followed by (fb) early-postemergence (EPOST) or late-postemergence (LPOST) applications at 140, 105, 87, 70, 53, 35, and 0 g ai/ha, respectively, was evaluated for weed control, crop tolerance, and grain yield in imidazolinone-tolerant rice”

✓ located verbatim in the source · abstract, characters 0–315 · show in text ↑
e2

“Rice yields were 5,920 and 3,920 kg/ ha in the drill-seeded study with a single application of imazethapyr at 140 g/ha EPOST in 2000 and 2001, respectively”

✓ located verbatim in the source · abstract, characters 539–694 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A single imazethapyr application at 140 g/ha EPOST gave rice yields greater than or equal to those of two imazethapyr applications.

Treatment
single application of imazethapyr at 140 g/ha EPOSTe2
Outcome
yieldse3
Direction
greater than or equal toe3
Comparator
treatments with two imazethapyr applicationse3

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

e0

“Imazethapyr applied to the soil at 0, 35, 53, 70, 87, 105, and 140 g ai/ha followed by (fb) early-postemergence (EPOST) or late-postemergence (LPOST) applications at 140, 105, 87, 70, 53, 35, and 0 g ai/ha, respectively, was evaluated for weed control, crop tolerance, and grain yield in imidazolinone-tolerant rice”

✓ located verbatim in the source · abstract, characters 0–315 · show in text ↑
e2

“Rice yields were 5,920 and 3,920 kg/ ha in the drill-seeded study with a single application of imazethapyr at 140 g/ha EPOST in 2000 and 2001, respectively”

✓ located verbatim in the source · abstract, characters 539–694 · show in text ↑
e3

“These yields were greater than or equal to those from treatments with two imazethapyr applications”

✓ located verbatim in the source · abstract, characters 696–794 · show in text ↑

Imazethapyr · yield · Oryza sativa (rice)Positive and negative results

23 papers: 11 positive, 12 negative or no effect

10 papers in the same direction as this paper · 12 in the opposite direction

  1. positive
  2. positive
  3. positive

19 papers more in this group

See all 23 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.