Abstract
In a 3-year study propanil (3′,4′-dichloropropionanilide) at 6.7 or 9.0 kg/ha was applied postemergence as single or split applications to rice ( Oryza sativa L. ‘Starbonnet’ and ‘Nova 66′) 15 to 75 days after crop emergence. The effect on crop injury, maturity, grain yield, and seed and milling quality was measured on rice grown in weed-free plots. Residues of DCA (3,4-dichloroaniline) in grain and straw from treated rice plants and of propanil and TCAB (3,3′,4,4′-tetrachloroazobenzene) in treated soil were determined. Propanil applied at all times and rates in 1968 and 1970 or applied at all rates at 15 to 55 days after crop emergence in 1969 did not reduce grain yields, but 6.7 kg/ha applied 65 and 75 days after crop emergence in 1969 injured rice plants vegetatively and reduced grain yields. Plant maturity, seed viability and milling quality of grain were not affected. Residues of DCA in grain and straw were highest from treatments applied 65 and 75 days after crop emergence; rice straw contained more DCA than did grain.
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 6
Claim · model-written summary
Most propanil timings and rates did not reduce rice grain yield.
- Taxon
- rice
Oryza sativae1 - Treatment
- Propanile0
- Outcome
- grain yieldse0
- Direction
- did not reducee0
- Qualifier
- all times and rates in 1968 and 1970 or applied at all rates at 15 to 55 days after crop emergence in 1969e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Propanil applied at all times and rates in 1968 and 1970 or applied at all rates at 15 to 55 days after crop emergence in 1969 did not reduce grain yields”
e1“rice ( Oryza sativa L.”
Claim · model-written summary
The 6.7 kg/ha late application in 1969 caused vegetative rice injury.
- Taxon
- riceOryza sativae0
- Treatment
- 6.7 kg/ha applied 65 and 75 days after crop emergence in 1969e0
- Outcome
- rice plants vegetativelye0
- Direction
- injurede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“6.7 kg/ha applied 65 and 75 days after crop emergence in 1969 injured rice plants vegetatively”
e1“propanil (3′,4′-dichloropropionanilide)”
Claim · model-written summary
The 6.7 kg/ha late application in 1969 reduced rice grain yield.
- Taxon
- riceOryza sativae1
- Treatment
- 6.7 kg/ha applied 65 and 75 days after crop emergence in 1969e0
- Outcome
- grain yieldse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“6.7 kg/ha applied 65 and 75 days after crop emergence in 1969 injured rice plants vegetatively and reduced grain yields”
e1“rice ( Oryza sativa L.”
Claim · model-written summary
Propanil did not affect rice maturity, seed viability, or milling quality.
- Taxon
- riceOryza sativae2
- Treatment
- propanile1
- Outcome
- Plant maturity, seed viability and milling quality of graine0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant maturity, seed viability and milling quality of grain were not affected”
e1“propanil (3′,4′-dichloropropionanilide)”
e2“rice ( Oryza sativa L.”
Claim · model-written summary
DCA residues in rice grain and straw were highest with 65- and 75-day applications.
- Taxon
- riceOryza sativae1
- Treatment
- treatments applied 65 and 75 days after crop emergencee0
- Outcome
- Residues of DCA in grain and strawe0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Residues of DCA in grain and straw were highest from treatments applied 65 and 75 days after crop emergence”
e1“rice ( Oryza sativa L.”
Claim · model-written summary
Rice straw contained more DCA than grain.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice straw contained more DCA than did grain”
The same questions in other papers
propanil · yield · Oryza sativa (rice)Results differ
10 papers in the same direction as this paper · 29 in the opposite direction
- positive
- positive
- positive
36 papers more in this group
See all 40 papers →propanil · quality: grain · Oryza sativa (rice)Results agree
1 paper in the same direction as this paper
- no effect
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.