Paper · 2020 · International Research Journal of Pure and Applied Chemistry

Effect of Weed Management Practices on Weed Dynamics, Growth, Yield and Yield Attributes of Rice (Oryza sativa L.)

Preeti Chaudhary; . Vivek; R. K. Naresh; et al.

7
claims
26
verbatim quotes
2
citations
2
research areas
✓
Open access

Abstract

A field experiment was conducted on sandy loam soil at Crop Research Centre of Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut, U.P. during kharif (July –October), 2019 in randomised block design with three replications. The study comprised of ten different statistical treatments for weed management practices in transplanted rice and various observations were recorded during the crop growth period. The results indicated that the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT significantly reduced the weed population and dry weight over weedy check. The highest plant height, number of tillers (m-2), dry matter accumulation, leaf area index, panicle length, filled grains, unfilled grains, higher protein content, 1000-grain weight and grain yield (38.80 q ha-1), were recorded with the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT, which established itssuperiority over rest of the herbicidal treatments. Among weed management treatments, Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT (T8) found excellent to control weed population and increase growth parameter, yield attributes and crop productivity.

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Claims 7

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Pretilachlor plus penoxsulam significantly reduced weed population and dry weight compared with the weedy check.

Taxon
Oryza sativaOryza sativat0
Treatment
Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe1
Interactor
weede1weed
Outcome
weed population and dry weighte1
Direction
significantly reducede1
Comparator
weedy checke1

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

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 92–114 · show in text ↑
e1

“the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT significantly reduced the weed population and dry weight over weedy check”

✓ located verbatim in the source · abstract, characters 453–619 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Grain yield of 38.80 q/ha was highest with pretilachlor plus penoxsulam.

Taxon
Oryza sativaOryza sativat0
Treatment
Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe3
Outcome
grain yielde2
Direction
higheste2
Value
38.80 q ha-1e2
Comparator
rest of the herbicidal treatmentse4

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

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 92–114 · show in text ↑
e2

“The highest plant height, number of tillers (m-2), dry matter accumulation, leaf area index, panicle length, filled grains, unfilled grains, higher protein content, 1000-grain weight and grain yield (38.80 q ha-1), were recorded”

✓ located verbatim in the source · abstract, characters 621–849 · show in text ↑
e3

“with the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT”

✓ located verbatim in the source · abstract, characters 850–947 · show in text ↑
e4

“over rest of the herbicidal treatments”

✓ located verbatim in the source · abstract, characters 982–1020 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Plant height, tiller number and dry matter accumulation were highest with pretilachlor plus penoxsulam.

Taxon
Oryza sativaOryza sativat0
Treatment
Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe3
Outcome
plant height, number of tillers (m-2), dry matter accumulatione2
Direction
higheste2
Comparator
rest of the herbicidal treatmentse4

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

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 92–114 · show in text ↑
e2

“The highest plant height, number of tillers (m-2), dry matter accumulation, leaf area index, panicle length, filled grains, unfilled grains, higher protein content, 1000-grain weight and grain yield (38.80 q ha-1), were recorded”

✓ located verbatim in the source · abstract, characters 621–849 · show in text ↑
e3

“with the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT”

✓ located verbatim in the source · abstract, characters 850–947 · show in text ↑
e4

“over rest of the herbicidal treatments”

✓ located verbatim in the source · abstract, characters 982–1020 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Leaf area index, panicle length and filled grains were highest with pretilachlor plus penoxsulam.

Taxon
Oryza sativaOryza sativat0
Treatment
Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe3
Outcome
leaf area index, panicle length, filled grainse2
Direction
higheste2
Comparator
rest of the herbicidal treatmentse4

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

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 92–114 · show in text ↑
e2

“The highest plant height, number of tillers (m-2), dry matter accumulation, leaf area index, panicle length, filled grains, unfilled grains, higher protein content, 1000-grain weight and grain yield (38.80 q ha-1), were recorded”

✓ located verbatim in the source · abstract, characters 621–849 · show in text ↑
e3

“with the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT”

✓ located verbatim in the source · abstract, characters 850–947 · show in text ↑
e4

“over rest of the herbicidal treatments”

✓ located verbatim in the source · abstract, characters 982–1020 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

1000-grain weight was highest with pretilachlor plus penoxsulam.

Taxon
Oryza sativaOryza sativat0
Treatment
Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe3
Outcome
1000-grain weighte2
Direction
higheste2
Comparator
rest of the herbicidal treatmentse4

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

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 92–114 · show in text ↑
e2

“The highest plant height, number of tillers (m-2), dry matter accumulation, leaf area index, panicle length, filled grains, unfilled grains, higher protein content, 1000-grain weight and grain yield (38.80 q ha-1), were recorded”

✓ located verbatim in the source · abstract, characters 621–849 · show in text ↑
e3

“with the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT”

✓ located verbatim in the source · abstract, characters 850–947 · show in text ↑
e4

“over rest of the herbicidal treatments”

✓ located verbatim in the source · abstract, characters 982–1020 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Unfilled grains were highest with pretilachlor plus penoxsulam.

Taxon
Oryza sativaOryza sativat0
Treatment
Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe3
Outcome
unfilled grainse2
Direction
higheste2
Comparator
rest of the herbicidal treatmentse4

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

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 92–114 · show in text ↑
e2

“The highest plant height, number of tillers (m-2), dry matter accumulation, leaf area index, panicle length, filled grains, unfilled grains, higher protein content, 1000-grain weight and grain yield (38.80 q ha-1), were recorded”

✓ located verbatim in the source · abstract, characters 621–849 · show in text ↑
e3

“with the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT”

✓ located verbatim in the source · abstract, characters 850–947 · show in text ↑
e4

“over rest of the herbicidal treatments”

✓ located verbatim in the source · abstract, characters 982–1020 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Protein content was higher with pretilachlor plus penoxsulam.

Taxon
Oryza sativaOryza sativat0
Treatment
Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe3
Outcome
protein contente2
Direction
highere2
Comparator
rest of the herbicidal treatmentse4

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

t0

“Rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 92–114 · show in text ↑
e2

“The highest plant height, number of tillers (m-2), dry matter accumulation, leaf area index, panicle length, filled grains, unfilled grains, higher protein content, 1000-grain weight and grain yield (38.80 q ha-1), were recorded”

✓ located verbatim in the source · abstract, characters 621–849 · show in text ↑
e3

“with the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT”

✓ located verbatim in the source · abstract, characters 850–947 · show in text ↑
e4

“over rest of the herbicidal treatments”

✓ located verbatim in the source · abstract, characters 982–1020 · show in text ↑

Penoxsulam · yield · Oryza sativa (rice)Results differ

87 papers: 75 positive, 12 negative or no effect

74 papers in the same direction as this paper · 7 in the opposite direction · 5 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

83 papers more in this group

See all 87 papers →

Pretilachlor · yield · Oryza sativa (rice)Results differ

141 papers: 133 positive, 8 negative or no effect

132 papers in the same direction as this paper · 3 in the opposite direction · 5 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

137 papers more in this group

See all 141 papers →

Pretilachlor · weed · Oryza sativa (rice)Results differ

150 papers: 147 positive, 3 negative or no effect

146 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

146 papers more in this group

See all 150 papers →

Penoxsulam · weed · Oryza sativa (rice)Positive and negative results

80 papers: 78 positive, 2 negative or no effect

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

  1. negative
  2. negative
  3. positive

76 papers more in this group

See all 80 papers →

Pretilachlor · quality: protein · Oryza sativa (rice)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 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.