Paper · 2025 · IOP Conference Series Earth and Environmental Science

Effects of Indole Acetic Acid and Zinc Sprays (Traditional and Nano) on Onion Growth and Yield

Mohammed Obed Sallume; Anwar Rajab Serheed; Bassam Ramadhn Sarheed; et al.

6
claims
18
verbatim quotes
0
citations
1
research areas
✓
Open access · cc-by

Abstract

Abstract A field experiment conducted in Al-Karma District, Anbar Governorate, during the 2020 growing season investigated the impact of spraying indole acetic acid (IAA) in combination with traditional and nano-zinc on onion growth and yield. The experiment used a randomized complete block design (R.C.B.D.) with nine treatments: control (T1), IAA at 100 mg L⁻¹ (T2), IAA at 200 mg L⁻¹ (T3), traditional zinc at 100 mg L⁻¹ (T4), nano-zinc at 20 mg L⁻¹ (T5), IAA at 100 mg L⁻¹ + traditional zinc (T6), IAA at 100 mg L⁻¹ + nano-zinc (T7), IAA at 200 mg L⁻¹ + traditional zinc (T8), and IAA at 200 mg L⁻¹ + nano-zinc (T9). Analysis at a 0.05 significance level revealed that T9 significantly increased plant height (50.13 cm). T3 excelled in leaf number and leaf area, with 17.67 leaves per plant and 34.79 dm 2 leaf area per plant, respectively. T6 significantly improved yield characteristics, including bulb thickness (77.40 mm), total plant yield (20.79 mg kg⁻¹), and fertilization efficiency (33.33%)

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 6

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Foliar IAA at 200 mg L⁻¹ with nano-zinc significantly increased onion plant height (50.13 cm).

Taxon
OnionAllium cepat0
Treatment
IAA at 200 mg L⁻¹ + nano-zince2
Outcome
plant heighte1
Direction
increasede1
Value
50.13 cme1

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Onion Growth and Yield”

✓ located verbatim in the source · title, characters 72–94 · show in text ↑
e1

“T9 significantly increased plant height (50.13 cm)”

✓ located verbatim in the source · abstract, characters 674–724 · show in text ↑
e2

“IAA at 200 mg L⁻¹ + nano-zinc (T9)”

✓ located verbatim in the source · abstract, characters 586–620 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar IAA at 200 mg L⁻¹ excelled in onion leaf number, with 17.67 leaves per plant.

Taxon
OnionAllium cepat0
Treatment
IAA at 200 mg L⁻¹ (T3)e4
Outcome
leaf numbere3
Direction
excellede3
Value
17.67 leaves per plante3

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Onion Growth and Yield”

✓ located verbatim in the source · title, characters 72–94 · show in text ↑
e3

“T3 excelled in leaf number and leaf area, with 17.67 leaves per plant and 34.79 dm 2 leaf area per plant”

✓ located verbatim in the source · abstract, characters 726–830 · show in text ↑
e4

“IAA at 200 mg L⁻¹ (T3)”

✓ located verbatim in the source · abstract, characters 370–392 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar IAA at 200 mg L⁻¹ excelled in onion leaf area, with 34.79 dm 2 per plant.

Taxon
OnionAllium cepat0
Treatment
IAA at 200 mg L⁻¹ (T3)e4
Outcome
leaf areae3
Direction
excellede3
Value
34.79 dm 2e3

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Onion Growth and Yield”

✓ located verbatim in the source · title, characters 72–94 · show in text ↑
e3

“T3 excelled in leaf number and leaf area, with 17.67 leaves per plant and 34.79 dm 2 leaf area per plant”

✓ located verbatim in the source · abstract, characters 726–830 · show in text ↑
e4

“IAA at 200 mg L⁻¹ (T3)”

✓ located verbatim in the source · abstract, characters 370–392 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

IAA at 100 mg L⁻¹ with traditional zinc significantly improved onion bulb thickness (77.40 mm).

Taxon
OnionAllium cepat0
Treatment
IAA at 100 mg L⁻¹ + traditional zince5
Outcome
bulb thicknesse6
Direction
improvede6
Value
77.40 mme6

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Onion Growth and Yield”

✓ located verbatim in the source · title, characters 72–94 · show in text ↑
e5

“IAA at 100 mg L⁻¹ + traditional zinc (T6)”

✓ located verbatim in the source · abstract, characters 460–501 · show in text ↑
e6

“T6 significantly improved yield characteristics, including bulb thickness (77.40 mm)”

✓ located verbatim in the source · abstract, characters 846–930 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

IAA at 100 mg L⁻¹ with traditional zinc significantly improved onion total plant yield (20.79 mg kg⁻¹).

Taxon
OnionAllium cepat0
Treatment
IAA at 100 mg L⁻¹ + traditional zince5
Outcome
total plant yielde7
Direction
improvede7
Value
20.79 mg kg⁻¹e7

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Onion Growth and Yield”

✓ located verbatim in the source · title, characters 72–94 · show in text ↑
e5

“IAA at 100 mg L⁻¹ + traditional zinc (T6)”

✓ located verbatim in the source · abstract, characters 460–501 · show in text ↑
e7

“T6 significantly improved yield characteristics, including bulb thickness (77.40 mm), total plant yield (20.79 mg kg⁻¹)”

✓ located verbatim in the source · abstract, characters 846–965 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

IAA at 100 mg L⁻¹ with traditional zinc significantly improved onion fertilization efficiency (33.33%).

Taxon
OnionAllium cepat0
Treatment
IAA at 100 mg L⁻¹ + traditional zince5
Outcome
fertilization efficiencye7
Direction
improvede7
Value
33.33%e7

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Onion Growth and Yield”

✓ located verbatim in the source · title, characters 72–94 · show in text ↑
e5

“IAA at 100 mg L⁻¹ + traditional zinc (T6)”

✓ located verbatim in the source · abstract, characters 460–501 · show in text ↑
e7

“T6 significantly improved yield characteristics, including bulb thickness (77.40 mm), total plant yield (20.79 mg kg⁻¹), and fertilization efficiency (33.33%)”

✓ located verbatim in the source · abstract, characters 846–1004 · show in text ↑

zinc atom · yield · Allium cepa (onion)Results differ

36 papers: 33 positive, 3 negative or no effect

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

  1. negative
  2. negative
    FYM, NPK and sulfur, with or without boron and zinc, gave maximum bulb weight.

    Response of Onion to NPK, S and Micronutrients · 2020

    Opposite directionAbout lacking this nutrient, so it counts the other way round

  3. no effect

32 papers more in this group

See all 36 papers →

indole-3-acetic acid · growth · Allium cepa (onion)Positive and negative results

5 papers: 4 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

indole-3-acetic acid · yield · Allium cepa (onion)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

nanoparticle · growth · Allium cepa (onion)Positive and negative results

30 papers: 28 positive, 2 negative or no effect

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

  1. no effect
  2. negative
  3. positive

26 papers more in this group

See all 30 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.