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
Claim · model-written summary
Imazethapyr applied to soil followed by early or late postemergence applications effectively controlled barnyardgrass (91–97%) in rice.
- Taxon
- rice
Oryza sativae0
- Treatment
- soil fb EPOST or LPOST applicatione1
- Interactor
- barnyardgrass
Echinochloa 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.

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”
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”
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.
- Taxon
- rice
Oryza sativae0
- 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.
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”
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”
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.
- Taxon
- rice
Oryza sativae0
- 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.
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”
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”
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.
- Taxon
- rice
Oryza sativae0
- 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.
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”
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”
e3“These yields were greater than or equal to those from treatments with two imazethapyr applications”
The same questions in other papers
Imazethapyr · yield · Oryza sativa (rice)Positive and negative results
10 papers in the same direction as this paper · 12 in the opposite direction
- positive
- positive
- 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.