Paper · 2009 · The Proceedings of the International Plant Nutrition Colloquium XVI

RESPONSE OF TWO CANOLA VARIETIES (Brassica napus L.) TO NITROGEN FERTILIZER LEVELS AND ZINC FOLIAR APPLICATION

El Sayed Fathi El Habbasha; Mostafa Abd El Salam

7
claims
24
verbatim quotes
15
citations
1
research areas
—
Not open access

Abstract

Two field experiments were carried out at the Agricultural Experimental Station of the National Research Center at Shalakan, Qalubeia Governorate, Egypt, during the two successive winter seasons of 2005/2006 and 2006/2007 to study the response of some canola varieties (Topas and Pactol cvs.) to nitrogen fertilizer levels (20, 40 and 60 kg N/faddan, (faddan = 4200 m2)) and number of zinc foliar application, one zinc foliar application (rosette stage) or two zinc foliar applications (rosette and bud stages). Concerning varitial differences, the obtained results illustrate that no significant differences between both varieties on the most studied characters, except for plant height and seed yield/faddan where, Pactol superior in plant height, 1000-seed weight, seed yield /plant, seed yield /faddan and oil yield /faddan. Increasing nitrogen fertilizer from 20 to 60 kg N/faddan significantly increased plant height, number of siliqua/plant, seed yield /plant, seed yield /faddan and oil yield/faddan. Most of studied characters were significantly increased by increasing number of zinc foliar application where, two zinc foliar application significantly affected in plant height, number of siliqua /plant, seed yield/ plant, seed yield /faddan and oil yield/faddan. The interactions between different factors show significant differences in the most studied characters.

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Claims 7

Observationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Most measured characters did not differ significantly between the varieties.

Outcome
most studied characterse0
Direction
no significant differencese0
Comparator
both varietiese0

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

e0

“no significant differences between both varieties on the most studied characters”

✓ located verbatim in the source · abstract, characters 582–662 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 16–22 · show in text ↑
t1

“CANOLA”

✓ located verbatim in the source · title, characters 16–22 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Pactol exceeded Topas for plant height, 1000-seed weight, seed yield per plant and area, and oil yield per area.

Material
Pactole0
Outcome
plant height, 1000-seed weight, seed yield /plant, seed yield /faddan and oil yield /faddane0
Direction
superiore0
Comparator
Topase1

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

e0

“Pactol superior in plant height, 1000-seed weight, seed yield /plant, seed yield /faddan and oil yield /faddan.”

✓ located verbatim in the source · abstract, characters 717–828 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 16–22 · show in text ↑
t1

“CANOLA”

✓ located verbatim in the source · title, characters 16–22 · show in text ↑
e1

“Topas and Pactol cvs.”

✓ located verbatim in the source · abstract, characters 270–291 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Increasing nitrogen from 20 to 60 kg N/faddan significantly increased plant height and siliqua count.

Treatment
60 kg N/faddane0
Outcome
plant height, number of siliqua/plante0
Direction
increasede0
Comparator
20e0

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

e0

“Increasing nitrogen fertilizer from 20 to 60 kg N/faddan significantly increased plant height, number of siliqua/plant, seed yield /plant, seed yield /faddan and oil yield/faddan.”

✓ located verbatim in the source · abstract, characters 829–1008 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 16–22 · show in text ↑
t1

“CANOLA”

✓ located verbatim in the source · title, characters 16–22 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Increasing nitrogen from 20 to 60 kg N/faddan significantly increased seed yield per plant and area and oil yield per area.

Treatment
60 kg N/faddane0
Outcome
seed yield /plant, seed yield /faddan and oil yield/faddane0
Direction
increasede0
Comparator
20e0

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

e0

“Increasing nitrogen fertilizer from 20 to 60 kg N/faddan significantly increased plant height, number of siliqua/plant, seed yield /plant, seed yield /faddan and oil yield/faddan.”

✓ located verbatim in the source · abstract, characters 829–1008 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 16–22 · show in text ↑
t1

“CANOLA”

✓ located verbatim in the source · title, characters 16–22 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Two zinc foliar applications significantly increased plant height and siliqua count relative to one application.

Treatment
two zinc foliar applicatione0
Outcome
plant height, number of siliqua /plante0
Comparator
one zinc foliar applicatione1

Not reportedDirection

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

e0

“two zinc foliar application significantly affected in plant height, number of siliqua /plant, seed yield/ plant, seed yield /faddan and oil yield/faddan.”

✓ located verbatim in the source · abstract, characters 1120–1273 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 16–22 · show in text ↑
t1

“CANOLA”

✓ located verbatim in the source · title, characters 16–22 · show in text ↑
e1

“one zinc foliar application (rosette stage)”

✓ located verbatim in the source · abstract, characters 410–453 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Two zinc foliar applications significantly affected seed and oil yields.

Treatment
two zinc foliar applicatione0
Outcome
seed yield/ plant, seed yield /faddan and oil yield/faddane0
Comparator
one zinc foliar applicatione1

Not reportedDirection

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

e0

“two zinc foliar application significantly affected in plant height, number of siliqua /plant, seed yield/ plant, seed yield /faddan and oil yield/faddan.”

✓ located verbatim in the source · abstract, characters 1120–1273 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 16–22 · show in text ↑
t1

“CANOLA”

✓ located verbatim in the source · title, characters 16–22 · show in text ↑
e1

“one zinc foliar application (rosette stage)”

✓ located verbatim in the source · abstract, characters 410–453 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Interactions among factors differed significantly for most studied characters.

Treatment
different factorse0
Outcome
most studied characterse0

Not reportedDirection

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

e0

“The interactions between different factors show significant differences in the most studied characters.”

✓ located verbatim in the source · abstract, characters 1274–1377 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 16–22 · show in text ↑
t1

“CANOLA”

✓ located verbatim in the source · title, characters 16–22 · show in text ↑

zinc atom · growth · Brassica napus (oilseed rape)Results differ

20 papers: 15 positive, 5 negative or no effect

14 papers in the same direction as this paper · 5 in the opposite direction

  1. negative
  2. negative
  3. negative

16 papers more in this group

See all 20 papers →

zinc atom · quality: oil · Brassica napus (oilseed rape)Positive and negative results

19 papers: 18 positive, 1 negative or no effect

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

  1. positive
  2. negative
  3. positive

15 papers more in this group

See all 19 papers →

nitrogen · quality: oil · Brassica napus (oilseed rape)Results differ

64 papers: 31 positive, 33 negative or no effect

30 papers in the same direction as this paper · 33 in the opposite direction

  1. negative
  2. negative
  3. negative

60 papers more in this group

See all 64 papers →

application · quality: oil · Brassica napus (oilseed rape)Positive and negative results

19 papers: 15 positive, 4 negative or no effect

14 papers in the same direction as this paper · 4 in the opposite direction

  1. negative
  2. no effect
  3. no effect

15 papers more in this group

See all 19 papers →

application · growth · Brassica napus (oilseed rape)Positive and negative results

47 papers: 38 positive, 9 negative or no effect

37 papers in the same direction as this paper · 8 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

43 papers more in this group

See all 47 papers →

nitrogen · growth · Brassica napus (oilseed rape)Positive and negative results

82 papers: 65 positive, 17 negative or no effect

64 papers in the same direction as this paper · 17 in the opposite direction

  1. negative
  2. no effect
  3. negative

78 papers more in this group

See all 82 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.