Paper · 2014 · Indian Journal of Weed Science

Weed control in wet-seeded rice by post-emergence herbicides

Syama S. Menon; P. Prameela; C. T. Abraham

11
claims
22
verbatim quotes
5
citations
2
research areas
—
Not open access

Abstract

An experiment was conducted at Kole lands in Thrissur district, Kerala to study the efficacy of various post-emergence herbicides in wet-seeded rice. The results showed that cyhalofop-butyl + chlorimuronethyl + metsulfuron-methyl, fenoxaprop-p-ethyl + chlorimuron-ethyl + metsulfuron-methyl and bispyribac-sodium were best treatments with a lower weed biomass as well as high grain yield and B:C ratio. Maximum weed control efficiency of 97.1% was obtained in hand weeded plots followed by bispyribac-sodium (93.6%). The highest grain yield of 6.13 t/ha was recorded in hand weeded plot which was at par with cyhalofop-butyl + chlorimuron-ethyl + metsulfuron-methyl and fenoxaprop + chlorimuron ethyl+ metsulfuron-methyl (5.8 t/ha). From this study it can be concluded that, cyhalofop-butyl with a follow up spray of chlorimuron-ethyl + metsulfuronmethyl or fenoxaprop-p-ethyl with a follow up spray of chlorimuron-ethyl + metsulfuron methyl or bispyribac sodium alone can be recommended for effective post emergence weed control and higher yield in wet seeded rice. If grasses are the predominant weeds, cyhalofop-butyl or fenoxaprop-p-ethyl alone without follow up spray of chlorimuron-ethyl + metsulfuron-methyl can also be recommended.

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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 11

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Three herbicide regimens gave lower weed biomass and high grain yield and B:C ratio.

Treatment
cyhalofop-butyl + chlorimuronethyl + metsulfuron-methyl, fenoxaprop-p-ethyl + chlorimuron-ethyl + metsulfuron-methyl and bispyribac-sodiume0
Interactor
weede0weed
Outcome
lower weed biomass as well as high grain yield and B:C ratioe0
Direction
lowere0

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

e0

“cyhalofop-butyl + chlorimuronethyl + metsulfuron-methyl, fenoxaprop-p-ethyl + chlorimuron-ethyl + metsulfuron-methyl and bispyribac-sodium were best treatments with a lower weed biomass as well as high grain yield and B:C ratio.”

✓ located verbatim in the source · abstract, characters 174–402 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 27–31 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Hand weeding achieved maximum weed control efficiency of 97.1%.

Treatment
hand weedede0
Interactor
weede0weed
Outcome
weed control efficiencye0
Direction
Maximume0
Value
97.1%e0
Comparator
bispyribac-sodiume0

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

“Maximum weed control efficiency of 97.1% was obtained in hand weeded plots followed by bispyribac-sodium (93.6%).”

✓ located verbatim in the source · abstract, characters 403–516 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 27–31 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bispyribac-sodium gave 93.6% weed control efficiency.

Treatment
bispyribac-sodiume0
Interactor
weede0weed
Outcome
weed control efficiencye0
Direction
followed bye0
Value
93.6%e0
Comparator
hand weeded plotse0

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

“Maximum weed control efficiency of 97.1% was obtained in hand weeded plots followed by bispyribac-sodium (93.6%).”

✓ located verbatim in the source · abstract, characters 403–516 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 27–31 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Hand weeding gave the highest grain yield, 6.13 t/ha.

Treatment
hand weeded plote0
Outcome
grain yielde0
Direction
higheste0
Value
6.13 t/hae0
Comparator
cyhalofop-butyl + chlorimuron-ethyl + metsulfuron-methyl and fenoxaprop + chlorimuron ethyl+ metsulfuron-methyle0

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

“The highest grain yield of 6.13 t/ha was recorded in hand weeded plot which was at par with cyhalofop-butyl + chlorimuron-ethyl + metsulfuron-methyl and fenoxaprop + chlorimuron ethyl+ metsulfuron-methyl (5.8 t/ha).”

✓ located verbatim in the source · abstract, characters 517–732 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 27–31 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The cyhalofop combination produced grain yield of 5.8 t/ha, at par with hand weeding.

Treatment
cyhalofop-butyl + chlorimuron-ethyl + metsulfuron-methyle0
Outcome
grain yielde0
Direction
at pare0
Value
5.8 t/hae0
Comparator
hand weeded plote0

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

“The highest grain yield of 6.13 t/ha was recorded in hand weeded plot which was at par with cyhalofop-butyl + chlorimuron-ethyl + metsulfuron-methyl and fenoxaprop + chlorimuron ethyl+ metsulfuron-methyl (5.8 t/ha).”

✓ located verbatim in the source · abstract, characters 517–732 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 27–31 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The fenoxaprop combination produced grain yield of 5.8 t/ha, at par with hand weeding.

Treatment
fenoxaprop + chlorimuron ethyl+ metsulfuron-methyle0
Outcome
grain yielde0
Direction
at pare0
Value
5.8 t/hae0
Comparator
hand weeded plote0

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

“The highest grain yield of 6.13 t/ha was recorded in hand weeded plot which was at par with cyhalofop-butyl + chlorimuron-ethyl + metsulfuron-methyl and fenoxaprop + chlorimuron ethyl+ metsulfuron-methyl (5.8 t/ha).”

✓ located verbatim in the source · abstract, characters 517–732 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 27–31 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend the cyhalofop regimen for effective weed control and higher yield.

Treatment
cyhalofop-butyl with a follow up spray of chlorimuron-ethyl + metsulfuronmethyle0
Interactor
weede0weed
Outcome
effective post emergence weed control and higher yielde0

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

“cyhalofop-butyl with a follow up spray of chlorimuron-ethyl + metsulfuronmethyl or fenoxaprop-p-ethyl with a follow up spray of chlorimuron-ethyl + metsulfuron methyl or bispyribac sodium alone can be recommended for effective post emergence weed control and higher yield in wet seeded rice.”

✓ located verbatim in the source · abstract, characters 775–1066 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 27–31 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend the fenoxaprop regimen for effective weed control and higher yield.

Treatment
fenoxaprop-p-ethyl with a follow up spray of chlorimuron-ethyl + metsulfuron methyle0
Interactor
weede0weed
Outcome
effective post emergence weed control and higher yielde0

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

“cyhalofop-butyl with a follow up spray of chlorimuron-ethyl + metsulfuronmethyl or fenoxaprop-p-ethyl with a follow up spray of chlorimuron-ethyl + metsulfuron methyl or bispyribac sodium alone can be recommended for effective post emergence weed control and higher yield in wet seeded rice.”

✓ located verbatim in the source · abstract, characters 775–1066 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 27–31 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend bispyribac sodium alone for effective weed control and higher yield.

Treatment
bispyribac sodium alonee0
Interactor
weede0weed
Outcome
effective post emergence weed control and higher yielde0

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

“bispyribac sodium alone can be recommended for effective post emergence weed control and higher yield in wet seeded rice.”

✓ located verbatim in the source · abstract, characters 945–1066 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 27–31 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Where grasses predominate, the authors recommend cyhalofop-butyl alone.

Treatment
cyhalofop-butyle0
Interactor
grassese0weed
Outcome
cyhalofop-butyl or fenoxaprop-p-ethyl alone without follow up spray of chlorimuron-ethyl + metsulfuron-methyl can also be recommendede0

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

“If grasses are the predominant weeds, cyhalofop-butyl or fenoxaprop-p-ethyl alone without follow up spray of chlorimuron-ethyl + metsulfuron-methyl can also be recommended.”

✓ located verbatim in the source · abstract, characters 1067–1239 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 27–31 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Where grasses predominate, the authors recommend fenoxaprop-p-ethyl alone.

Treatment
fenoxaprop-p-ethyle0
Interactor
grassese0weed
Outcome
cyhalofop-butyl or fenoxaprop-p-ethyl alone without follow up spray of chlorimuron-ethyl + metsulfuron-methyl can also be recommendede0

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

“If grasses are the predominant weeds, cyhalofop-butyl or fenoxaprop-p-ethyl alone without follow up spray of chlorimuron-ethyl + metsulfuron-methyl can also be recommended.”

✓ located verbatim in the source · abstract, characters 1067–1239 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 27–31 · show in text ↑

Cyhalofop-butyl · yield · Oryza sativa (rice)Results differ

49 papers: 42 positive, 7 negative or no effect

41 papers in the same direction as this paper · 1 in the opposite direction · 6 reporting no difference from an alternative

  1. positive
  2. negative
  3. no effect

45 papers more in this group

See all 49 papers →

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

6 papers: 3 positive, 3 negative or no effect

2 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. no effect
  3. negative

2 papers more in this group

See all 6 papers →

chlorimuron-ethyl · yield · Oryza sativa (rice)Positive and negative results

27 papers: 22 positive, 5 negative or no effect

21 papers in the same direction as this paper · 2 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

23 papers more in this group

See all 27 papers →

metsulfuron methyl · yield · Oryza sativa (rice)Positive and negative results

42 papers: 30 positive, 12 negative or no effect

29 papers in the same direction as this paper · 9 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

38 papers more in this group

See all 42 papers →

bispyribac-sodium · weed · Oryza sativa (rice)Positive and negative results

153 papers: 149 positive, 4 negative or no effect

148 papers in the same direction as this paper · 1 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. no effect
    Total weed population and dry weight under bispyribac-sodium at 25 g/ha were at par with the higher doses.

    Evaluation of bispyribac-sodium in transplanted rice · 2013 · compared with higher doses of bispyribac-sodium at 35 and 50 g/ha

    No difference from an alternative

  3. no effect

149 papers more in this group

See all 153 papers →

chlorimuron-ethyl · weed · Oryza sativa (rice)Results agree

30 papers: 30 positive, 0 negative or no effect

29 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

26 papers more in this group

See all 30 papers →

Cyhalofop-butyl · weed · Oryza sativa (rice)Results agree

37 papers: 37 positive, 0 negative or no effect

36 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

33 papers more in this group

See all 37 papers →

metsulfuron methyl · weed · Oryza sativa (rice)Results agree

43 papers: 43 positive, 0 negative or no effect

42 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

39 papers more in this group

See all 43 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.