Abstract
Abstract QYR301, 1,3-Dimethyl-1H-pyrazole-4-carboxylic acid 4-[2-chloro-3-(3,5-dimethyl-pyrazol-1-ylmethyl)-4-methanesulfonyl-benzoyl]-2,5-dimethyl-2H-pyrazol-3-yl ester, is a novel HPPD-inhibiting herbicide and was evaluated to provide a reference for post-emergence (POST) application under greenhouse and field conditions. The crop safety (180 and 360 g active ingredient (a.i.) ha −1 treatments) experiment revealed that wheat, paddy, garlic and corn were the only four crops without injury at both examined herbicide rates. The weed control efficacy (60 and 120 g a.i. ha −1 ) experiment showed that QYR301 exhibited high efficacy against many weeds, especially weeds infesting paddy fields. Furthermore, it is interesting that both susceptible and multiple herbicide resistant Echinochloa crus-galli (L.) Beauv. and Echinochloa phyllopogon (Stapf) Koss, two notorious weed species in paddy field, remained susceptible to QYR301. Further crop tolerance results indicated that 20 tested paddy hybrids displayed different levels of tolerance to QYR301, with the japonica paddy hybrids having more tolerance than indica paddy hybrids under greenhouse conditions. Results obtained from field experiments showed that QYR301 POST at 135 to 180 g a.i. ha −1 was recommended to provide satisfactory full-season control of E. crus-galli and Leptochloa chinensis (L.) Nees and to maximize rice yields. These findings indicate that QYR301 possesses great potential for the management of weeds in paddy fields.
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Claims 9
Claim · model-written summary
Wheat, paddy, garlic and corn showed no injury at both rates.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- herbicide ratese0
- Outcome
- without injurye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat, paddy, garlic and corn were the only four crops without injury at both examined herbicide rates”
Claim · model-written summary
QYR301 showed high efficacy against many weeds.
Not reportedComparator
Verbatim
e0“QYR301 exhibited high efficacy against many weeds, especially weeds infesting paddy fields”
Claim · model-written summary
Susceptible and resistant Echinochloa crus-galli remained susceptible to QYR301.
- Taxon
- Echinochloa crus-galli (L.) Beauv.
Echinochloa crus-gallie0 - Treatment
- QYR301e0
- Outcome
- remained susceptiblee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both susceptible and multiple herbicide resistant Echinochloa crus-galli (L.) Beauv. and Echinochloa phyllopogon (Stapf) Koss, two notorious weed species in paddy field, remained susceptible to QYR301”
Claim · model-written summary
Echinochloa phyllopogon remained susceptible to QYR301.
- Taxon
- Echinochloa phyllopogon (Stapf) KossEchinochloa phyllopogone0
- Treatment
- QYR301e0
- Outcome
- remained susceptiblee0
Not reportedComparatorDirection
Verbatim
e0“both susceptible and multiple herbicide resistant Echinochloa crus-galli (L.) Beauv. and Echinochloa phyllopogon (Stapf) Koss, two notorious weed species in paddy field, remained susceptible to QYR301”
Claim · model-written summary
The 20 paddy hybrids varied in tolerance to QYR301.
Verbatim
e0“20 tested paddy hybrids displayed different levels of tolerance to QYR301”
Claim · model-written summary
Japonica paddy hybrids tolerated QYR301 more than indica hybrids.
Verbatim
e0“japonica paddy hybrids having more tolerance than indica paddy hybrids under greenhouse conditions”
Claim · model-written summary
Postemergence QYR301 at 135 to 180 g a.i. ha −1 was recommended for full-season control of E. crus-galli.
- Taxon
- rice
Oryza sativae0 - Treatment
- QYR301 POST at 135 to 180 g a.i. ha −1e0
- Interactor
- E. crus-galliEchinochloa crus-gallie0weed
- Outcome
- full-season control of E. crus-gallie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“QYR301 POST at 135 to 180 g a.i. ha −1 was recommended to provide satisfactory full-season control of E. crus-galli and Leptochloa chinensis (L.) Nees and to maximize rice yields”
Claim · model-written summary
Postemergence QYR301 at 135 to 180 g a.i. ha −1 was recommended for full-season control of Leptochloa chinensis.
- Taxon
- riceOryza sativae0
- Treatment
- QYR301 POST at 135 to 180 g a.i. ha −1e0
- Interactor
- Leptochloa chinensis (L.) Nees
Dinebra chinensise0weed - Outcome
- full-season control of E. crus-galli and Leptochloa chinensis (L.) Neese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“QYR301 POST at 135 to 180 g a.i. ha −1 was recommended to provide satisfactory full-season control of E. crus-galli and Leptochloa chinensis (L.) Nees and to maximize rice yields”
Claim · model-written summary
Postemergence QYR301 at 135 to 180 g a.i. ha −1 was recommended to maximize rice yields.
- Taxon
- riceOryza sativae0
- Treatment
- QYR301 POST at 135 to 180 g a.i. ha −1e0
- Outcome
- maximize rice yieldse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“QYR301 POST at 135 to 180 g a.i. ha −1 was recommended to provide satisfactory full-season control of E. crus-galli and Leptochloa chinensis (L.) Nees and to maximize rice yields”
The same questions in other papers
herbicide · crop injury · Triticum aestivum (wheat)Positive and negative results
19 papers in the same direction as this paper · 32 in the opposite direction
- negative
- negative
- no effect
48 papers more in this group
See all 52 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.