Paper · 2019 · Alexandria Science Exchange Journal

Response of Barley to Bio Fertilization with Mycorrhiza and Azotobacter under Supplemental Irrigation Conditions at the North Western Coast of Egypt

Noha Abdelhameid; Kenawey Kenawey

10
claims
19
verbatim quotes
3
citations
3
research areas
✓
Open access · cc-by-nc-sa

Abstract

In order to evaluate the response of grain yield, yield compounds, quality and water use efficiency of barley cv. Giza 126 cultivar to irrigation water regimes and biofertilization inoculation, field experiment was conducted in the Experimental Farm of Maryout Experimental Station, Desert Research Center, Egypt, during two successive growing seasons 2017/18 and 2018/19. The experimental design was a split plot, whereas the main plots involved by irrigation water regimes and the sub-main plots involved by biofertilization treatments, with three replicates. The obtained results indicated that yield, yield attributes and N, P and K contents in grains of barley i.e. plant height, spike length, number of spikes/m2, number of grains/spike, 1000-grain weight, grain yield ha-1. The contents of nitrogen, phosphorus percentage in barley grains and water use efficiency significantly increased with increasing irrigation water applications and by biofertilizers treatments. However, the number of spikelets/spike, and potassium percentage in grains was not significantly affected by irrigations water regimes and/or biofertilizers treatments. Water use efficiency (kg m-3) for grain yield significantly increased with increasing irrigation water application with biofertilizers treatments in the two growing seasons. The highest values of all studded traits were recorded by applying the three times irrigation in the two seasons. Regarding biofertilizers inoculation effects, results showed that the maximum values of most studied traits were recorded by inoculating with both Mycorrhiza and Azotobacter together as a combination treatment for both seasons except plant height, which produced highest values, by inoculating with Mycorrhiza and Azotobacter in the first season and by using Azotobacter alone in the second one. On the other side, maximum value of nitrogen percentage in grains were recorded by treating the plant with Azotobacter alone in the two seasons. The results clearly showed that barley plants which irrigated by the three irrigations and inoculated by Mycorrhiza and Azotobacter together, as a combination treatment, produced the highest yield, yield components and water use efficiency at the North Western Coast of Egypt.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-sa. 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 10

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Increasing irrigation water increased barley yield and yield attributes.

Treatment
increasing irrigation water applicationse1
Outcome
yield, yield attributese0
Direction
increasede1

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“yield, yield attributes and N, P and K contents in grains of barley i.e. plant height, spike length, number of spikes/m2, number of grains/spike, 1000-grain weight, grain yield ha-1.”

✓ located verbatim in the source · abstract, characters 598–780 · show in text ↑
e1

“The contents of nitrogen, phosphorus percentage in barley grains and water use efficiency significantly increased with increasing irrigation water applications and by biofertilizers treatments.”

✓ located verbatim in the source · abstract, characters 781–974 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Biofertilizer treatments increased barley grain nitrogen and phosphorus percentages and water use efficiency.

Treatment
biofertilizers treatmentse0
Outcome
nitrogen, phosphorus percentage in barley grains and water use efficiencye0
Direction
increasede0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The contents of nitrogen, phosphorus percentage in barley grains and water use efficiency significantly increased with increasing irrigation water applications and by biofertilizers treatments.”

✓ located verbatim in the source · abstract, characters 781–974 · show in text ↑
t0

“Barley”

✓ located verbatim in the source · title, characters 12–18 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Spikelets per spike and grain potassium percentage were not significantly affected by irrigation or biofertilizers.

Treatment
irrigations water regimes and/or biofertilizers treatmentse0
Outcome
number of spikelets/spike, and potassium percentage in grainse0
Direction
not significantly affectede0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the number of spikelets/spike, and potassium percentage in grains was not significantly affected by irrigations water regimes and/or biofertilizers treatments.”

✓ located verbatim in the source · abstract, characters 984–1143 · show in text ↑
t0

“Barley”

✓ located verbatim in the source · title, characters 12–18 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Grain water use efficiency increased with greater irrigation combined with biofertilizers across both seasons.

Treatment
increasing irrigation water application with biofertilizers treatmentse0
Outcome
Water use efficiency (kg m-3) for grain yielde0
Direction
increasede0
Qualifier
in the two growing seasonse0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Water use efficiency (kg m-3) for grain yield significantly increased with increasing irrigation water application with biofertilizers treatments in the two growing seasons.”

✓ located verbatim in the source · abstract, characters 1144–1317 · show in text ↑
t0

“Barley”

✓ located verbatim in the source · title, characters 12–18 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Three irrigations produced the highest values of the studied traits in both seasons.

Treatment
the three times irrigatione0
Outcome
all studded traitse0
Direction
higheste0
Qualifier
in the two seasonse0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The highest values of all studded traits were recorded by applying the three times irrigation in the two seasons.”

✓ located verbatim in the source · abstract, characters 1318–1431 · show in text ↑
t0

“Barley”

✓ located verbatim in the source · title, characters 12–18 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined Mycorrhiza and Azotobacter inoculation gave maximum values of most traits in both seasons.

Treatment
inoculating with both Mycorrhiza and Azotobacter togethere0
Interactor
Mycorrhizae0symbiont
Second interactor
AzotobacterAzotobactere0symbiont
Outcome
most studied traitse0
Direction
maximume0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗
Azotobacter
Azotobacter · Second interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the maximum values of most studied traits were recorded by inoculating with both Mycorrhiza and Azotobacter together as a combination treatment for both seasons”

✓ located verbatim in the source · abstract, characters 1498–1658 · show in text ↑
t0

“Barley”

✓ located verbatim in the source · title, characters 12–18 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined Mycorrhiza and Azotobacter gave greatest plant height in the first season.

Treatment
inoculating with Mycorrhiza and Azotobactere0
Interactor
Mycorrhizae0symbiont
Second interactor
AzotobacterAzotobactere0symbiont
Outcome
plant heighte0
Direction
higheste0
Qualifier
in the first seasone0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗
Azotobacter
Azotobacter · Second interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“plant height, which produced highest values, by inoculating with Mycorrhiza and Azotobacter in the first season”

✓ located verbatim in the source · abstract, characters 1666–1777 · show in text ↑
t0

“Barley”

✓ located verbatim in the source · title, characters 12–18 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Azotobacter alone gave greatest plant height in the second season.

Treatment
using Azotobacter alonee0
Interactor
AzotobacterAzotobactere0symbiont
Outcome
plant heighte0
Direction
higheste0
Qualifier
in the second onee0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“plant height, which produced highest values, by inoculating with Mycorrhiza and Azotobacter in the first season and by using Azotobacter alone in the second one.”

✓ located verbatim in the source · abstract, characters 1666–1827 · show in text ↑
t0

“Barley”

✓ located verbatim in the source · title, characters 12–18 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Azotobacter alone gave maximum grain nitrogen percentage in both seasons.

Treatment
treating the plant with Azotobacter alonee0
Interactor
AzotobacterAzotobactere0symbiont
Outcome
nitrogen percentage in grainse0
Direction
maximume0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“maximum value of nitrogen percentage in grains were recorded by treating the plant with Azotobacter alone in the two seasons.”

✓ located verbatim in the source · abstract, characters 1847–1972 · show in text ↑
t0

“Barley”

✓ located verbatim in the source · title, characters 12–18 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Three irrigations combined with both inoculants gave highest barley yield, yield components and water use efficiency.

Treatment
the three irrigations and inoculated by Mycorrhiza and Azotobacter togethere0
Interactor
Mycorrhizae0symbiont
Second interactor
AzotobacterAzotobactere0symbiont
Outcome
yield, yield components and water use efficiencye0
Direction
higheste0
Setting
North Western Coast of Egypte0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗
Azotobacter
Azotobacter · Second interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“barley plants which irrigated by the three irrigations and inoculated by Mycorrhiza and Azotobacter together, as a combination treatment, produced the highest yield, yield components and water use efficiency at the North Western Coast of Egypt.”

✓ located verbatim in the source · abstract, characters 2005–2249 · show in text ↑

Azotobacter · physiology: water · Hordeum vulgare (barley)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 →

Azotobacter · growth · Hordeum vulgare (barley)Results agree

11 papers: 11 positive, 0 negative or no effect

10 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

7 papers more in this group

See all 11 papers →

inoculation · growth · Hordeum vulgare (barley)Results differ

88 papers: 66 positive, 22 negative or no effect

65 papers in the same direction as this paper · 22 in the opposite direction

  1. no effect
  2. negative
  3. no effect

84 papers more in this group

See all 88 papers →

irrigation · yield · Hordeum vulgare (barley)Results differ

109 papers: 83 positive, 26 negative or no effect

82 papers in the same direction as this paper · 26 in the opposite direction

  1. no effect
  2. negative
  3. negative

105 papers more in this group

See all 109 papers →

inoculation · physiology: water · Hordeum vulgare (barley)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

soil water · yield · Hordeum vulgare (barley)Positive and negative results

9 papers: 4 positive, 5 negative or no effect

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

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

mycorrhiza · growth · Hordeum vulgare (barley)Positive and negative results

17 papers: 12 positive, 5 negative or no effect

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

  1. negative
  2. negative
  3. negative

13 papers more in this group

See all 17 papers →

irrigation · physiology: water · Hordeum vulgare (barley)Positive and negative results

19 papers: 16 positive, 3 negative or no effect

15 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. negative
  3. negative

15 papers more in this group

See all 19 papers →

8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.