Paper · 2008 · Applied Biological Research

Effect of nitrogen and ethrel on various physiological and yield attributes of mustard (Brassica juncea L.)

Manzoor Ur Rahman Mir; Nafees A. Khan; G. H. Rather; et al.

7
claims
17
verbatim quotes
4
citations
2
research areas
—
Not open access

Abstract

The mustard plants (Brassica juncea L. Czern and Coss) cv. ‘Alankar’, grown on a soil treated with 40, 60 and 80 kg N ha−1, were sprayed with 0.02% ethrel (2-chloro-ethyl phosphonic acid) at flowering stage [60 days after sowing (DAS)] to observe the changes in leaf area index, net photosynthetic rate, nitrate reductase activity and plant dry biomass on 80, 100 and 120 DAS. At harvest, the pod number plant−1, 1000-seed weight and seed yield were also recorded. Ethrel (0.02%) + 80 kg N ha−1 treatment enhanced leaf area index, net photosynthetic rate, nitrate reductase activity, plant biomass by 75.5, 56.4, 72.1 and 39.1%, respectively, while pod number plant−1, 1000-seed weight and seed yield were enhanced by 27.2, 5.6 and 71.9%, respectively.

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ethrel with 80 kg N/ha enhanced leaf area index of mustard by 75.5%.

Taxon
Brassica juncea L.Brassica junceat0
Treatment
Ethrel (0.02%) + 80 kg N ha−1e1
Outcome
leaf area indexe1
Direction
enhancede1
Value
75.5e1

Not reportedComparator

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

Brassica juncea
Brassica juncea · TaxonDalgial · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“mustard (Brassica juncea L.)”

✓ located verbatim in the source · title, characters 79–107 · show in text ↑
e1

“Ethrel (0.02%) + 80 kg N ha−1 treatment enhanced leaf area index, net photosynthetic rate, nitrate reductase activity, plant biomass by 75.5, 56.4, 72.1 and 39.1%, respectively”

✓ located verbatim in the source · abstract, characters 465–641 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ethrel with 80 kg N/ha enhanced net photosynthetic rate of mustard by 56.4%.

Taxon
Brassica juncea L.Brassica junceat0
Treatment
Ethrel (0.02%) + 80 kg N ha−1e1
Outcome
net photosynthetic ratee1
Direction
enhancede1
Value
56.4e1

Not reportedComparator

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

Brassica juncea
Brassica juncea · TaxonDalgial · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“mustard (Brassica juncea L.)”

✓ located verbatim in the source · title, characters 79–107 · show in text ↑
e1

“Ethrel (0.02%) + 80 kg N ha−1 treatment enhanced leaf area index, net photosynthetic rate, nitrate reductase activity, plant biomass by 75.5, 56.4, 72.1 and 39.1%, respectively”

✓ located verbatim in the source · abstract, characters 465–641 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ethrel with 80 kg N/ha enhanced nitrate reductase activity of mustard by 72.1%.

Taxon
Brassica juncea L.Brassica junceat0
Treatment
Ethrel (0.02%) + 80 kg N ha−1e1
Outcome
nitrate reductase activitye1
Direction
enhancede1
Value
72.1e1

Not reportedComparator

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

Brassica juncea
Brassica juncea · TaxonDalgial · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“mustard (Brassica juncea L.)”

✓ located verbatim in the source · title, characters 79–107 · show in text ↑
e1

“Ethrel (0.02%) + 80 kg N ha−1 treatment enhanced leaf area index, net photosynthetic rate, nitrate reductase activity, plant biomass by 75.5, 56.4, 72.1 and 39.1%, respectively”

✓ located verbatim in the source · abstract, characters 465–641 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ethrel with 80 kg N/ha enhanced plant biomass of mustard by 39.1%.

Taxon
Brassica juncea L.Brassica junceat0
Treatment
Ethrel (0.02%) + 80 kg N ha−1e1
Outcome
plant biomasse1
Direction
enhancede1
Value
39.1e1

Not reportedComparator

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

Brassica juncea
Brassica juncea · TaxonDalgial · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“mustard (Brassica juncea L.)”

✓ located verbatim in the source · title, characters 79–107 · show in text ↑
e1

“Ethrel (0.02%) + 80 kg N ha−1 treatment enhanced leaf area index, net photosynthetic rate, nitrate reductase activity, plant biomass by 75.5, 56.4, 72.1 and 39.1%, respectively”

✓ located verbatim in the source · abstract, characters 465–641 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ethrel with 80 kg N/ha enhanced pod number per plant of mustard by 27.2%.

Taxon
Brassica juncea L.Brassica junceat0
Treatment
Ethrel (0.02%) + 80 kg N ha−1e1
Outcome
pod number plant−1e2
Direction
enhancede2
Value
27.2e2

Not reportedComparator

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

Brassica juncea
Brassica juncea · TaxonDalgial · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“mustard (Brassica juncea L.)”

✓ located verbatim in the source · title, characters 79–107 · show in text ↑
e1

“Ethrel (0.02%) + 80 kg N ha−1 treatment enhanced leaf area index, net photosynthetic rate, nitrate reductase activity, plant biomass by 75.5, 56.4, 72.1 and 39.1%, respectively”

✓ located verbatim in the source · abstract, characters 465–641 · show in text ↑
e2

“pod number plant−1, 1000-seed weight and seed yield were enhanced by 27.2, 5.6 and 71.9%, respectively”

✓ located verbatim in the source · abstract, characters 649–751 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ethrel with 80 kg N/ha enhanced 1000-seed weight of mustard by 5.6%.

Taxon
Brassica juncea L.Brassica junceat0
Treatment
Ethrel (0.02%) + 80 kg N ha−1e1
Outcome
1000-seed weighte2
Direction
enhancede2
Value
5.6e2

Not reportedComparator

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

Brassica juncea
Brassica juncea · TaxonDalgial · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“mustard (Brassica juncea L.)”

✓ located verbatim in the source · title, characters 79–107 · show in text ↑
e1

“Ethrel (0.02%) + 80 kg N ha−1 treatment enhanced leaf area index, net photosynthetic rate, nitrate reductase activity, plant biomass by 75.5, 56.4, 72.1 and 39.1%, respectively”

✓ located verbatim in the source · abstract, characters 465–641 · show in text ↑
e2

“pod number plant−1, 1000-seed weight and seed yield were enhanced by 27.2, 5.6 and 71.9%, respectively”

✓ located verbatim in the source · abstract, characters 649–751 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ethrel with 80 kg N/ha enhanced seed yield of mustard by 71.9%.

Taxon
Brassica juncea L.Brassica junceat0
Treatment
Ethrel (0.02%) + 80 kg N ha−1e1
Outcome
seed yielde2
Direction
enhancede2
Value
71.9e2

Not reportedComparator

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

Brassica juncea
Brassica juncea · TaxonDalgial · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“mustard (Brassica juncea L.)”

✓ located verbatim in the source · title, characters 79–107 · show in text ↑
e1

“Ethrel (0.02%) + 80 kg N ha−1 treatment enhanced leaf area index, net photosynthetic rate, nitrate reductase activity, plant biomass by 75.5, 56.4, 72.1 and 39.1%, respectively”

✓ located verbatim in the source · abstract, characters 465–641 · show in text ↑
e2

“pod number plant−1, 1000-seed weight and seed yield were enhanced by 27.2, 5.6 and 71.9%, respectively”

✓ located verbatim in the source · abstract, characters 649–751 · show in text ↑

(2-chloroethyl)phosphonic acid · physiology: enzyme activity · Brassica juncea (Indian mustard)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 →

(2-chloroethyl)phosphonic acid · growth · Brassica juncea (Indian mustard)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

(2-chloroethyl)phosphonic acid · yield · Brassica juncea (Indian mustard)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

(2-chloroethyl)phosphonic acid · physiology: photosynthesis · Brassica juncea (Indian mustard)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

nitrogen · yield · Brassica juncea (Indian mustard)Results differ

65 papers: 63 positive, 2 negative or no effect

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

  1. negative
  2. negative
  3. positive

61 papers more in this group

See all 65 papers →

nitrogen · physiology: photosynthesis · Brassica juncea (Indian mustard)Positive and negative results

4 papers: 2 positive, 2 negative or no effect

1 paper in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. negative
  3. positive
See all 4 papers →

nitrogen · growth · Brassica juncea (Indian mustard)Positive and negative results

25 papers: 23 positive, 2 negative or no effect

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

  1. negative
  2. no effect
  3. positive

21 papers more in this group

See all 25 papers →

nitrogen · physiology: enzyme activity · Brassica juncea (Indian mustard)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.