Paper · 2016 · Cercetari Agronomice in Moldova

The Effect of Irrigation Intervals Scheduling and Nitrogen and Zinc Content on Wheat Yield and Yield Components in Drought Stress

N. Parsai; F. Vazin; M. Hassanzadeh

18
claims
47
verbatim quotes
2
citations
2
research areas
✓
Open access

Abstract

Abstract In order to evaluate the effect of irrigation interval on yield and quantitative-qualitative characteristics of bread wheat, splited plot experiment in randomized block with four replications in the 2010-11 crop years was conducted in the research field of Islamic Azad University of Gonabad. A number of 7, 9 and 10 days irrigation treatments formed the main factors of test, and spraying and non-spraying of nitrogen and zinc were considered as subfactor of test. The results showed that the effect of irrigation was significant for the number of grains per spike in the level of 5% and on 1000-grain weight and fat percent at the level of 1%, and had no significant effect on grain yield, biological yield, number of spikes/sq m stem height, stem diameter and protein content. Nitrogen treatment was significant at the level of 5% on biological yield and number of spikes/sq m, but had no significant effect on grain yield, number of grains per spike, 1000-grain weight, stem height, fat and protein percent, and stem diameter. Treatment with zinc was statistically significant in probability level of 1% only on percentage of fat and had no significant effect on grain yield, biological yield, grain numbers per spike, weight of 1000 seeds, spikes/sq m, stem height, protein percent and stem diameter. Seven days irrigation with of nitrogen allocated for highest seed yield (265.38 g/m 2 /sq m) and biological yield (659.33 g/m 2 /sq m). Means comparison showed the highest 1000-grain weight was obtained from 7 days irrigation (47.10 g) and the lowest from 13 days irrigation (40.44 g). According to the experiment results, 7 days irrigation was recognized as the best irrigation to achieve maximum economic performance and 13 days irrigation were determined as most appropriate irrigation for maximum performance for the region due to lack of water and weather conditions of Gonabad, spraying zinc and nitrogen to improve production was proposed depending on different irrigation and the purpose of production.

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Claims 18

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Irrigation interval significantly affected the number of grains per spike at the 5% level

Treatment
irrigatione1
Outcome
number of grains per spikee1
Qualifier
in the level of 5%e1
Setting
research field of Islamic Azad University of Gonabade0

Not reportedComparatorDirection

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e0

“research field of Islamic Azad University of Gonabad”

✓ located verbatim in the source · abstract, characters 248–300 · show in text ↑
e1

“the effect of irrigation was significant for the number of grains per spike in the level of 5%”

✓ located verbatim in the source · abstract, characters 499–593 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Irrigation interval significantly affected 1000-grain weight and fat percent at the 1% level

Treatment
irrigatione1
Outcome
1000-grain weight and fat percente2
Qualifier
at the level of 1%e2

Not reportedComparatorDirection

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e1

“the effect of irrigation was significant for the number of grains per spike in the level of 5%”

✓ located verbatim in the source · abstract, characters 499–593 · show in text ↑
e2

“on 1000-grain weight and fat percent at the level of 1%”

✓ located verbatim in the source · abstract, characters 598–653 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Irrigation had no significant effect on grain yield, biological yield and number of spikes per square metre

Treatment
irrigatione1
Outcome
grain yield, biological yield, number of spikes/sq me3
Direction
no_changeinferrede3

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e1

“the effect of irrigation was significant for the number of grains per spike in the level of 5%”

✓ located verbatim in the source · abstract, characters 499–593 · show in text ↑
e3

“had no significant effect on grain yield, biological yield, number of spikes/sq m stem height, stem diameter and protein content”

✓ located verbatim in the source · abstract, characters 659–787 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Irrigation had no significant effect on stem height, stem diameter and protein content

Treatment
irrigatione1
Outcome
stem height, stem diameter and protein contente3
Direction
no_changeinferrede3

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e1

“the effect of irrigation was significant for the number of grains per spike in the level of 5%”

✓ located verbatim in the source · abstract, characters 499–593 · show in text ↑
e3

“had no significant effect on grain yield, biological yield, number of spikes/sq m stem height, stem diameter and protein content”

✓ located verbatim in the source · abstract, characters 659–787 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Nitrogen treatment was significant at the 5% level for biological yield and number of spikes per square metre

Treatment
Nitrogen treatmente4
Outcome
biological yield and number of spikes/sq me4
Qualifier
at the level of 5%e4

Not reportedComparatorDirection

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e4

“Nitrogen treatment was significant at the level of 5% on biological yield and number of spikes/sq m”

✓ located verbatim in the source · abstract, characters 789–888 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Nitrogen treatment had no significant effect on grain yield, number of grains per spike and 1000-grain weight

Treatment
Nitrogen treatmente4
Outcome
grain yield, number of grains per spike, 1000-grain weighte5
Direction
no_changeinferrede5

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e4

“Nitrogen treatment was significant at the level of 5% on biological yield and number of spikes/sq m”

✓ located verbatim in the source · abstract, characters 789–888 · show in text ↑
e5

“had no significant effect on grain yield, number of grains per spike, 1000-grain weight, stem height, fat and protein percent, and stem diameter”

✓ located verbatim in the source · abstract, characters 894–1038 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Nitrogen treatment had no significant effect on stem height, fat and protein percent, and stem diameter

Treatment
Nitrogen treatmente4
Outcome
stem height, fat and protein percent, and stem diametere5
Direction
no_changeinferrede5

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e4

“Nitrogen treatment was significant at the level of 5% on biological yield and number of spikes/sq m”

✓ located verbatim in the source · abstract, characters 789–888 · show in text ↑
e5

“had no significant effect on grain yield, number of grains per spike, 1000-grain weight, stem height, fat and protein percent, and stem diameter”

✓ located verbatim in the source · abstract, characters 894–1038 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Zinc treatment significantly affected the percentage of fat at the 1% level

Treatment
Treatment with zince6
Outcome
percentage of fate6
Qualifier
in probability level of 1%e6

Not reportedComparatorDirection

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e6

“Treatment with zinc was statistically significant in probability level of 1% only on percentage of fat”

✓ located verbatim in the source · abstract, characters 1040–1142 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Zinc treatment had no significant effect on grain yield, biological yield and grain numbers per spike

Treatment
Treatment with zince6
Outcome
grain yield, biological yield, grain numbers per spikee7
Direction
no_changeinferrede7

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e6

“Treatment with zinc was statistically significant in probability level of 1% only on percentage of fat”

✓ located verbatim in the source · abstract, characters 1040–1142 · show in text ↑
e7

“had no significant effect on grain yield, biological yield, grain numbers per spike, weight of 1000 seeds, spikes/sq m, stem height, protein percent and stem diameter”

✓ located verbatim in the source · abstract, characters 1147–1313 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Zinc treatment had no significant effect on weight of 1000 seeds, spikes per square metre and stem height

Treatment
Treatment with zince6
Outcome
weight of 1000 seeds, spikes/sq m, stem heighte7
Direction
no_changeinferrede7

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e6

“Treatment with zinc was statistically significant in probability level of 1% only on percentage of fat”

✓ located verbatim in the source · abstract, characters 1040–1142 · show in text ↑
e7

“had no significant effect on grain yield, biological yield, grain numbers per spike, weight of 1000 seeds, spikes/sq m, stem height, protein percent and stem diameter”

✓ located verbatim in the source · abstract, characters 1147–1313 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Zinc treatment had no significant effect on protein percent and stem diameter

Treatment
Treatment with zince6
Outcome
protein percent and stem diametere7
Direction
no_changeinferrede7

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e6

“Treatment with zinc was statistically significant in probability level of 1% only on percentage of fat”

✓ located verbatim in the source · abstract, characters 1040–1142 · show in text ↑
e7

“had no significant effect on grain yield, biological yield, grain numbers per spike, weight of 1000 seeds, spikes/sq m, stem height, protein percent and stem diameter”

✓ located verbatim in the source · abstract, characters 1147–1313 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Irrigation with nitrogen at 7-day intervals gave the highest seed yield (265.38 g/m 2 /sq m)

Treatment
irrigation with of nitrogene2
Outcome
seed yielde2
Direction
higheste2
Value
265.38 g/m 2 /sq me2

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e2

“Seven days irrigation with of nitrogen allocated for highest seed yield (265.38 g/m 2 /sq m)”

✓ located verbatim in the source · abstract, characters 1315–1407 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Irrigation with nitrogen at 7-day intervals gave the higher biological yield (659.33 g/m 2 /sq m)

Treatment
irrigation with of nitrogene2
Outcome
biological yielde3
Direction
higherinferrede2
Value
659.33 g/m 2 /sq me3

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e2

“Seven days irrigation with of nitrogen allocated for highest seed yield (265.38 g/m 2 /sq m)”

✓ located verbatim in the source · abstract, characters 1315–1407 · show in text ↑
e3

“biological yield (659.33 g/m 2 /sq m)”

✓ located verbatim in the source · abstract, characters 1412–1449 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seven-day irrigation gave the highest 1000-grain weight (47.10 g)

Treatment
7 days irrigatione4
Outcome
1000-grain weighte4
Direction
higheste4
Value
47.10 ge4

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e4

“the highest 1000-grain weight was obtained from 7 days irrigation (47.10 g)”

✓ located verbatim in the source · abstract, characters 1475–1550 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Thirteen-day irrigation gave the lowest 1000-grain weight (40.44 g)

Treatment
13 days irrigatione5
Outcome
1000-grain weighte4
Direction
loweste5
Value
40.44 ge5

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e4

“the highest 1000-grain weight was obtained from 7 days irrigation (47.10 g)”

✓ located verbatim in the source · abstract, characters 1475–1550 · show in text ↑
e5

“the lowest from 13 days irrigation (40.44 g)”

✓ located verbatim in the source · abstract, characters 1555–1599 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Seven-day irrigation is the best irrigation for maximum economic performance

Treatment
7 days irrigatione6
Outcome
maximum economic performancee6

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e6

“7 days irrigation was recognized as the best irrigation to achieve maximum economic performance”

✓ located verbatim in the source · abstract, characters 1638–1733 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Thirteen-day irrigation is most appropriate for maximum performance in the region

Treatment
13 days irrigatione1
Outcome
maximum performance for the regione1

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e1

“13 days irrigation were determined as most appropriate irrigation for maximum performance for the region”

✓ located verbatim in the source · abstract, characters 1738–1842 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Spraying zinc and nitrogen is proposed to improve production under different irrigation regimes

Treatment
spraying zinc and nitrogene1
Outcome
improve productione1

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

“Wheat Yield and Yield Components”

✓ located verbatim in the source · title, characters 79–111 · show in text ↑
e1

“spraying zinc and nitrogen to improve production was proposed depending on different irrigation”

✓ located verbatim in the source · abstract, characters 1899–1994 · show in text ↑

zinc atom · quality: protein · Triticum aestivum (wheat)Results differ

64 papers: 56 positive, 8 negative or no effect

7 papers in the same direction as this paper · 56 in the opposite direction

  1. positive
  2. positive
  3. positive

60 papers more in this group

See all 64 papers →

zinc atom · yield · Triticum aestivum (wheat)Results differ

511 papers: 456 positive, 55 negative or no effect

54 papers in the same direction as this paper · 456 in the opposite direction

  1. positive
  2. positive
  3. positive

507 papers more in this group

See all 511 papers →

irrigation · quality: protein · Triticum aestivum (wheat)Results differ

80 papers: 50 positive, 30 negative or no effect

29 papers in the same direction as this paper · 50 in the opposite direction

  1. positive
  2. positive
  3. positive

76 papers more in this group

See all 80 papers →

nitrogen · quality: protein · Triticum aestivum (wheat)Positive and negative results

454 papers: 400 positive, 54 negative or no effect

53 papers in the same direction as this paper · 400 in the opposite direction

  1. positive
  2. positive
  3. positive

450 papers more in this group

See all 454 papers →

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

989 papers: 798 positive, 191 negative or no effect

797 papers in the same direction as this paper · 184 in the opposite direction · 7 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

985 papers more in this group

See all 989 papers →

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

2,061 papers: 1,737 positive, 324 negative or no effect

1,736 papers in the same direction as this paper · 285 in the opposite direction · 39 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

2,057 papers more in this group

See all 2,061 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.