Paper · 2019 · Soil & Environment

Response of canola (Brassica napus L.) to exogenous application of nitrogen, salicylic acid and gibberellic acid under an arid climate

Muhammad Ijaz; Ahmad Sher; Abdul Sattar; et al.

5
claims
6
verbatim quotes
14
citations
1
research areas
✓
Open access · cc-by

Abstract

Sustainable improvement of yield under limited land resources is a challenge for future food security and types and techniques of fertilization are critical for this challenge. In this view, a 2-year study was conducted to investigate the interaction of nitrogen (N) with salicylic acid and gibberellic acid on productivity and quality of canola (Brassica napus L.) during the year 2014-15 and 2015-16. The experiment was conducted in a split-plot arrangement of treatments where four N levels (60, 80, 100, 120 kg ha -1 ), kept in main plots, and four levels of plant growth regulators PGRs [Control, salicylic acid (100 ppm), gibberellic acid (100 ppm) and combination of the two], kept in sub-plots, and replicated three times. The results indicated that combined application of N and PGRs in either combination improved the morphological/yield parameters, seed yield and seed quality attributes of canola crop. The maximum seed yield of 2230 kg ha -1 was recorded when N application @ 120 kg ha -1 interacted with combine application of salicylic acid and gibberellic acid. The combined application of gibberellic acid and salicylic acid enhanced the seed yield and seed oil contents of canola by 13.3-17.7% and 28.9-29.8%, respectively, than control treatment (no application of salicylic acid and gibberellic acid) during the both years of experimentation. Therefore, to combat emerging food security issues, combined application of salicylic acid and gibberellic acid along with N (at 100/120 kg ha -1 ) will be a practicable option to improve the productivity and quality of canola grown under arid climates.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined application of N and plant growth regulators improved morphological and yield parameters, seed yield and seed quality attributes of canola.

Treatment
combined application of N and PGRse1
Outcome
morphological/yield parameters, seed yield and seed quality attributese1
Direction
improvede1

Not reportedComparator

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

Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e1

“The results indicated that combined application of N and PGRs in either combination improved the morphological/yield parameters, seed yield and seed quality attributes of canola crop”

✓ located verbatim in the source · abstract, characters 731–913 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The maximum canola seed yield of 2230 kg ha -1 was recorded with N at 120 kg ha -1 combined with salicylic and gibberellic acid.

Treatment
N application @ 120 kg ha -1 interacted with combine application of salicylic acid and gibberellic acide2
Outcome
seed yielde2
Direction
maximume2
Value
2230 kg ha -1e2

Not reportedComparator

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

Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e1

“canola crop”

✓ located verbatim in the source · abstract, characters 902–913 · show in text ↑
e2

“The maximum seed yield of 2230 kg ha -1 was recorded when N application @ 120 kg ha -1 interacted with combine application of salicylic acid and gibberellic acid”

✓ located verbatim in the source · abstract, characters 915–1076 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined gibberellic and salicylic acid enhanced canola seed yield by 13.3-17.7% relative to the control.

Treatment
combined application of gibberellic acid and salicylic acide3
Outcome
seed yielde3
Direction
enhancede3
Value
13.3-17.7%e3
Comparator
control treatment (no application of salicylic acid and gibberellic acid)e3

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

Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e3

“The combined application of gibberellic acid and salicylic acid enhanced the seed yield and seed oil contents of canola by 13.3-17.7% and 28.9-29.8%, respectively, than control treatment (no application of salicylic acid and gibberellic acid) during the both years of experimentation”

✓ located verbatim in the source · abstract, characters 1078–1361 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined gibberellic and salicylic acid enhanced canola seed oil content by 28.9-29.8% relative to the control.

Treatment
combined application of gibberellic acid and salicylic acide3
Outcome
seed oil contentse3
Direction
enhancede3
Value
28.9-29.8%e3
Comparator
control treatment (no application of salicylic acid and gibberellic acid)e3

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

Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e3

“The combined application of gibberellic acid and salicylic acid enhanced the seed yield and seed oil contents of canola by 13.3-17.7% and 28.9-29.8%, respectively, than control treatment (no application of salicylic acid and gibberellic acid) during the both years of experimentation”

✓ located verbatim in the source · abstract, characters 1078–1361 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Combined salicylic and gibberellic acid with N at 100/120 kg ha -1 is a practicable option to improve canola productivity and quality under arid climates.

Treatment
combined application of salicylic acid and gibberellic acid along with Ne4
Outcome
productivity and quality of canolae4
Setting
arid climatese4

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

Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e4

“combined application of salicylic acid and gibberellic acid along with N (at 100/120 kg ha -1 ) will be a practicable option to improve the productivity and quality of canola grown under arid climates”

✓ located verbatim in the source · abstract, characters 1415–1615 · show in text ↑

salicylic acid · yield · Brassica napus (oilseed rape)Positive and negative results

12 papers: 11 positive, 1 negative or no effect

10 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

8 papers more in this group

See all 12 papers →

Gibberellic acid · yield · Brassica napus (oilseed rape)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 napus (oilseed rape)Positive and negative results

239 papers: 198 positive, 41 negative or no effect

197 papers in the same direction as this paper · 34 in the opposite direction · 7 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

235 papers more in this group

See all 239 papers →

nitrogen · quality: grain · Brassica napus (oilseed rape)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 →

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.