Paper · 2012 · Indian Journal of Weed Science

Effect of different herbicides on weed growth and yield performance of wheat

Rajeev Bharat; Dileep Kachroo; Rohit Sharma; et al.

10
claims
28
verbatim quotes
20
citations
3
research areas
—
Not open access

Abstract

A field experiment was conducted at Chatha, Jammu during winter season of 2004–05 and 2005–06 to study the effect of different herbicides and its mixtures on weeds and yield of wheat (Triticum aestivum). Unchecked weeds growth caused 40.3% reduction in grain yield of wheat. Application of sulfosulfuron (25 g) + 2,4-D (500 g/ha) reduced weed population and biomass significantly and thereby caused increase in crop growth and grain yield of wheat. This was at par with tank-mix application of clodinafop (60 g) + metsulfuron-methyl (2 g/ha), isoproturon (750 g) + 2,4-D (500 g/ha) and fenoxaprop (120 g) + metribuzin (100 g/ha). Maximum grain yield was recorded in weed-free (5.05 t/ha), but the highest B:C ratio was observed with isoproturon+2,4-D (1.79). There was a significant positive correlation between N uptake by crop and grain yield of wheat (0.99), but a negative correlation was observed between grain yield and density and N removal by weeds.

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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 10

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Unchecked weed growth caused a 40.3% reduction in wheat grain yield.

Interactor
weedse1weed
Outcome
grain yielde1
Direction
reductione1
Value
40.3%e1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“yield performance of wheat”

✓ located verbatim in the source · title, characters 50–76 · show in text ↑
e1

“Unchecked weeds growth caused 40.3% reduction in grain yield of wheat”

✓ located verbatim in the source · abstract, characters 204–273 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Sulfosulfuron plus 2,4-D significantly reduced weed population and biomass in wheat.

Treatment
sulfosulfuron (25 g) + 2,4-D (500 g/ha)e2
Interactor
weedse1weed
Outcome
weed population and biomasse2
Direction
reducede2
Setting
Chatha, Jammue0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“yield performance of wheat”

✓ located verbatim in the source · title, characters 50–76 · show in text ↑
e0

“A field experiment was conducted at Chatha, Jammu during winter season of 2004–05 and 2005–06 to study the effect of different herbicides and its mixtures on weeds and yield of wheat (Triticum aestivum)”

✓ located verbatim in the source · abstract, characters 0–202 · show in text ↑
e1

“Unchecked weeds growth caused 40.3% reduction in grain yield of wheat”

✓ located verbatim in the source · abstract, characters 204–273 · show in text ↑
e2

“Application of sulfosulfuron (25 g) + 2,4-D (500 g/ha) reduced weed population and biomass significantly and thereby caused increase in crop growth and grain yield of wheat”

✓ located verbatim in the source · abstract, characters 275–447 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfosulfuron plus 2,4-D increased crop growth and grain yield of wheat.

Treatment
sulfosulfuron (25 g) + 2,4-D (500 g/ha)e2
Outcome
crop growth and grain yielde2
Direction
increasee2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“yield performance of wheat”

✓ located verbatim in the source · title, characters 50–76 · show in text ↑
e2

“Application of sulfosulfuron (25 g) + 2,4-D (500 g/ha) reduced weed population and biomass significantly and thereby caused increase in crop growth and grain yield of wheat”

✓ located verbatim in the source · abstract, characters 275–447 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Clodinafop plus metsulfuron-methyl was at par with sulfosulfuron plus 2,4-D for grain yield of wheat.

Treatment
clodinafop (60 g) + metsulfuron-methyl (2 g/ha)e3
Outcome
grain yielde1
Direction
at pare3
Comparator
sulfosulfuron (25 g) + 2,4-D (500 g/ha)e2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“yield performance of wheat”

✓ located verbatim in the source · title, characters 50–76 · show in text ↑
e1

“Unchecked weeds growth caused 40.3% reduction in grain yield of wheat”

✓ located verbatim in the source · abstract, characters 204–273 · show in text ↑
e2

“Application of sulfosulfuron (25 g) + 2,4-D (500 g/ha) reduced weed population and biomass significantly and thereby caused increase in crop growth and grain yield of wheat”

✓ located verbatim in the source · abstract, characters 275–447 · show in text ↑
e3

“This was at par with tank-mix application of clodinafop (60 g) + metsulfuron-methyl (2 g/ha), isoproturon (750 g) + 2,4-D (500 g/ha) and fenoxaprop (120 g) + metribuzin (100 g/ha)”

✓ located verbatim in the source · abstract, characters 449–628 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Isoproturon plus 2,4-D was at par with sulfosulfuron plus 2,4-D for grain yield of wheat.

Treatment
isoproturon (750 g) + 2,4-D (500 g/ha)e3
Outcome
grain yielde1
Direction
at pare3
Comparator
sulfosulfuron (25 g) + 2,4-D (500 g/ha)e2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“yield performance of wheat”

✓ located verbatim in the source · title, characters 50–76 · show in text ↑
e1

“Unchecked weeds growth caused 40.3% reduction in grain yield of wheat”

✓ located verbatim in the source · abstract, characters 204–273 · show in text ↑
e2

“Application of sulfosulfuron (25 g) + 2,4-D (500 g/ha) reduced weed population and biomass significantly and thereby caused increase in crop growth and grain yield of wheat”

✓ located verbatim in the source · abstract, characters 275–447 · show in text ↑
e3

“This was at par with tank-mix application of clodinafop (60 g) + metsulfuron-methyl (2 g/ha), isoproturon (750 g) + 2,4-D (500 g/ha) and fenoxaprop (120 g) + metribuzin (100 g/ha)”

✓ located verbatim in the source · abstract, characters 449–628 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Fenoxaprop plus metribuzin was at par with sulfosulfuron plus 2,4-D for grain yield of wheat.

Treatment
fenoxaprop (120 g) + metribuzin (100 g/ha)e3
Outcome
grain yielde1
Direction
at pare3
Comparator
sulfosulfuron (25 g) + 2,4-D (500 g/ha)e2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“yield performance of wheat”

✓ located verbatim in the source · title, characters 50–76 · show in text ↑
e1

“Unchecked weeds growth caused 40.3% reduction in grain yield of wheat”

✓ located verbatim in the source · abstract, characters 204–273 · show in text ↑
e2

“Application of sulfosulfuron (25 g) + 2,4-D (500 g/ha) reduced weed population and biomass significantly and thereby caused increase in crop growth and grain yield of wheat”

✓ located verbatim in the source · abstract, characters 275–447 · show in text ↑
e3

“This was at par with tank-mix application of clodinafop (60 g) + metsulfuron-methyl (2 g/ha), isoproturon (750 g) + 2,4-D (500 g/ha) and fenoxaprop (120 g) + metribuzin (100 g/ha)”

✓ located verbatim in the source · abstract, characters 449–628 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Isoproturon plus 2,4-D gave the highest B:C ratio (1.79) in wheat.

Treatment
isoproturon+2,4-De4
Outcome
B:C ratioe4
Direction
higheste4
Value
1.79e4

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“yield performance of wheat”

✓ located verbatim in the source · title, characters 50–76 · show in text ↑
e4

“Maximum grain yield was recorded in weed-free (5.05 t/ha), but the highest B:C ratio was observed with isoproturon+2,4-D (1.79)”

✓ located verbatim in the source · abstract, characters 630–757 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Weed-free plots gave the maximum wheat grain yield of 5.05 t/ha.

Treatment
weed-freee4
Outcome
grain yielde4
Direction
Maximume4
Value
5.05 t/hae4

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“yield performance of wheat”

✓ located verbatim in the source · title, characters 50–76 · show in text ↑
e4

“Maximum grain yield was recorded in weed-free (5.05 t/ha), but the highest B:C ratio was observed with isoproturon+2,4-D (1.79)”

✓ located verbatim in the source · abstract, characters 630–757 · show in text ↑
Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Grain yield of wheat was significantly positively correlated with N uptake by the crop (r = 0.99).

Compound
N uptakee5
Outcome
grain yielde5
Direction
positivee5
Value
0.99e5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“yield performance of wheat”

✓ located verbatim in the source · title, characters 50–76 · show in text ↑
e5

“There was a significant positive correlation between N uptake by crop and grain yield of wheat (0.99)”

✓ located verbatim in the source · abstract, characters 759–860 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Grain yield was negatively correlated with weed density and N removal by weeds.

Interactor
weedse6weed
Outcome
grain yielde6
Direction
negativee6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“yield performance of wheat”

✓ located verbatim in the source · title, characters 50–76 · show in text ↑
e6

“but a negative correlation was observed between grain yield and density and N removal by weeds”

✓ located verbatim in the source · abstract, characters 862–956 · show in text ↑

metribuzin · yield · Triticum aestivum (wheat)Results differ

75 papers: 45 positive, 30 negative or no effect

29 papers in the same direction as this paper · 45 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

71 papers more in this group

See all 75 papers →

isoproturon · yield · Triticum aestivum (wheat)Results differ

89 papers: 75 positive, 14 negative or no effect

13 papers in the same direction as this paper · 75 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

85 papers more in this group

See all 89 papers →

2,4-D · yield · Triticum aestivum (wheat)Results differ

116 papers: 78 positive, 38 negative or no effect

77 papers in the same direction as this paper · 34 in the opposite direction · 4 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

112 papers more in this group

See all 116 papers →

clodinafop · yield · Triticum aestivum (wheat)Positive and negative results

60 papers: 57 positive, 3 negative or no effect

2 papers in the same direction as this paper · 57 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

56 papers more in this group

See all 60 papers →

2,4-D · weed · Triticum aestivum (wheat)Positive and negative results

66 papers: 64 positive, 2 negative or no effect

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

  1. negative
  2. negative
  3. positive

62 papers more in this group

See all 66 papers →

metsulfuron methyl · yield · Triticum aestivum (wheat)Positive and negative results

155 papers: 143 positive, 12 negative or no effect

11 papers in the same direction as this paper · 143 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

151 papers more in this group

See all 155 papers →

herbicide · yield · Triticum aestivum (wheat)Positive and negative results

563 papers: 466 positive, 97 negative or no effect

465 papers in the same direction as this paper · 87 in the opposite direction · 10 reporting no difference from an alternative

  1. negative
  2. positive
  3. positive

559 papers more in this group

See all 563 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.