Paper · 2025 · Nigerian Journal of Agriculture and Agricultural Technology

EVALUATION OF MORPHOLOGICAL TRAITS OF BARLEY (Hordeum vulgare L.) VARIETIES IN DIFFERENT INTER-ROW SPACINGS AND NITROGEN RATES UNDER IRRIGATION

Isa, A.; Garba, A.A.; Sabo, M.U.; et al.

11
claims
21
verbatim quotes
0
citations
2
research areas
✓
Open access · cc-by-nc-sa

Abstract

A field experiment was conducted over two consecutive cropping seasons, 2021/2022 and 2022/2023, at the National Root Crop Research Institute’s station in Vom, located in the Jos South Local Government Area of Plateau State (Longitude 8°53' E, Latitude 9º56' N) at an altitude of 1,217 meters above sea level. The aim of the study was to evaluate how different barley genotypes, inter-row spacing, and nitrogen application rates affect barley production. The experimental setup included three barley genotypes (Traveler, Zhana, and Arupo‘s’), four nitrogen levels (0, 80, 100, and 120 kg N ha-1), and three inter-row spacing configurations (20, 30, and 40 cm), organized in a split-split plot design with three replications. The findings indicated that the control treatment resulted in significantly fewer days to heading, with 49.00 days recorded in the 2021/2022 season and 49.30 days in 2022/2023 at a nitrogen application of 80 kg/ha-1. In contrast, the 120 kg N/ha treatment led to delayed heading in both years. However, both the control and the 120 kg N/ha-1 treatment resulted in significantly earlier flowering days at a 40 cm inter-row spacing during both seasons. The genotype Arupo's achieved the highest grain yields, reaching 1251.0 kg/ha in 2021/22 and 1876.4 kg/ha in 2022/23 at a 20 cm inter-row spacing, with the application of 120 kg N/ha-1. The study found significant interactions among the number of days to heading, flowering, physiological maturity, and grain yield concerning nitrogen levels, row spacing, and variety. In conclusion, the genotype Arupo's was the earliest to reach heading, flowering, and maturity, while also yielding the highest grain production in the 20 cm inter-row spacing with a nitrogen level of 120 kg/ha. It is recommended that farmers utilize the Arupo's genotype with a 20 cm inter-row spacing and 120 kg N/ha for optimal barley production.

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 11

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The control treatment had significantly fewer days to heading, 49.00 days in 2021/2022.

Treatment
control treatmente0
Outcome
days to headinge0
Direction
fewere0
Value
49.00 dayse0

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 control treatment resulted in significantly fewer days to heading, with 49.00 days recorded in the 2021/2022 season”

✓ located verbatim in the source · abstract, characters 753–872 · show in text ↑
t0

“BARLEY”

✓ located verbatim in the source · title, characters 38–44 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Heading was recorded at 49.30 days in 2022/2023 with 80 kg/ha-1 nitrogen.

Treatment
80 kg/ha-1e0
Outcome
dayse0
Value
49.30 dayse0

Not reportedDirection

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

“49.30 days in 2022/2023 at a nitrogen application of 80 kg/ha-1”

✓ located verbatim in the source · abstract, characters 877–940 · show in text ↑
t0

“BARLEY”

✓ located verbatim in the source · title, characters 38–44 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The 120 kg N/ha treatment delayed heading in both years.

Treatment
120 kg N/hae0
Outcome
headinge0
Direction
delayede0

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 120 kg N/ha treatment led to delayed heading in both years”

✓ located verbatim in the source · abstract, characters 955–1017 · show in text ↑
t0

“BARLEY”

✓ located verbatim in the source · title, characters 38–44 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Control treatment at 40 cm spacing produced significantly earlier flowering in both seasons.

Treatment
controle0
Outcome
flowering dayse0
Direction
earliere0
Qualifier
40 cm inter-row spacinge0

Not reportedComparatorSetting

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

“both the control and the 120 kg N/ha-1 treatment resulted in significantly earlier flowering days at a 40 cm inter-row spacing during both seasons”

✓ located verbatim in the source · abstract, characters 1028–1174 · show in text ↑
t0

“BARLEY”

✓ located verbatim in the source · title, characters 38–44 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The 120 kg N/ha-1 treatment at 40 cm spacing produced significantly earlier flowering in both seasons.

Treatment
120 kg N/ha-1 treatmente0
Outcome
flowering dayse0
Direction
earliere0
Qualifier
40 cm inter-row spacinge0

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

“both the control and the 120 kg N/ha-1 treatment resulted in significantly earlier flowering days at a 40 cm inter-row spacing during both seasons”

✓ located verbatim in the source · abstract, characters 1028–1174 · show in text ↑
t0

“BARLEY”

✓ located verbatim in the source · title, characters 38–44 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Arupo’s grain yield reached 1251.0 kg/ha in 2021/22 at 20 cm spacing and 120 kg N/ha-1.

Material
Arupo'se0
Treatment
120 kg N/ha-1e0
Outcome
grain yieldse0
Direction
higheste0
Value
1251.0 kg/hae0
Qualifier
20 cm inter-row spacinge0

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 genotype Arupo's achieved the highest grain yields, reaching 1251.0 kg/ha in 2021/22 and 1876.4 kg/ha in 2022/23 at a 20 cm inter-row spacing, with the application of 120 kg N/ha-1”

✓ located verbatim in the source · abstract, characters 1176–1360 · show in text ↑
t0

“BARLEY”

✓ located verbatim in the source · title, characters 38–44 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Arupo’s grain yield reached 1876.4 kg/ha in 2022/23 at 20 cm spacing and 120 kg N/ha-1.

Material
Arupo'se0
Treatment
120 kg N/ha-1e0
Outcome
grain yieldse0
Direction
higheste0
Value
1876.4 kg/hae0

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 genotype Arupo's achieved the highest grain yields, reaching 1251.0 kg/ha in 2021/22 and 1876.4 kg/ha in 2022/23 at a 20 cm inter-row spacing, with the application of 120 kg N/ha-1”

✓ located verbatim in the source · abstract, characters 1176–1360 · show in text ↑
t0

“BARLEY”

✓ located verbatim in the source · title, characters 38–44 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Nitrogen, spacing and variety significantly interacted for heading, flowering and physiological maturity.

Treatment
nitrogen levels, row spacing, and varietye0
Outcome
number of days to heading, flowering, physiological maturitye0

Not reportedDirection

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

“significant interactions among the number of days to heading, flowering, physiological maturity, and grain yield concerning nitrogen levels, row spacing, and variety”

✓ located verbatim in the source · abstract, characters 1378–1543 · show in text ↑
t0

“BARLEY”

✓ located verbatim in the source · title, characters 38–44 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Nitrogen, spacing and variety significantly interacted for grain yield.

Treatment
nitrogen levels, row spacing, and varietye0
Outcome
grain yielde0

Not reportedDirection

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

“significant interactions among the number of days to heading, flowering, physiological maturity, and grain yield concerning nitrogen levels, row spacing, and variety”

✓ located verbatim in the source · abstract, characters 1378–1543 · show in text ↑
t0

“BARLEY”

✓ located verbatim in the source · title, characters 38–44 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Arupo’s reached heading, flowering and maturity earliest.

Material
Arupo'se0
Outcome
heading, flowering, and maturitye0
Direction
earlieste0

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 genotype Arupo's was the earliest to reach heading, flowering, and maturity”

✓ located verbatim in the source · abstract, characters 1560–1639 · show in text ↑
t0

“BARLEY”

✓ located verbatim in the source · title, characters 38–44 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Farmers are recommended to use Arupo’s at 20 cm spacing and 120 kg N/ha.

Material
Arupo'se0
Outcome
20 cm inter-row spacing and 120 kg N/hae0

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

“It is recommended that farmers utilize the Arupo's genotype with a 20 cm inter-row spacing and 120 kg N/ha for optimal barley production”

✓ located verbatim in the source · abstract, characters 1757–1893 · show in text ↑

nitrogen · phenology · Hordeum vulgare (barley)Positive and negative results

7 papers: 2 positive, 5 negative or no effect

1 paper in the same direction as this paper · 4 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

3 papers more in this group

See all 7 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.