Paper · 2017 · African Journal of Food Agriculture Nutrition and Development

Effect of sowing date on grain quality of sorghum (Sorghum bicolor L. moench) in the Nile corridor agroecological zone of South Sudan

Majok Kok; JO Ouma; PO Ojwang

18
claims
30
verbatim quotes
4
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

Sorghum (Sorghum bicolor (L.) Moench) is a staple food for a considerable number of people in Africa and Asia. However, poor grain quality is a major concern for the rural communities who depend mainly on sorghum grain for food. Protein, minerals and tannins are important indicators of grain quality. Their quantity is critical in choice of variety to grow for food. An experiment was carried out in a randomised complete block design by sowing 5 sorghum varieties on 18 th June, 29 th June and 10 th July 2015in Bor and Arek South Sudan. The objective of the study was to determine the effect of sowing date on protein, tannins, iron and zinc content in sorghum. Grain samples of five sorghum varieties sown on various dates were collected and analysed at Kenya Agricultural and Livestock Research Organization (KALRO) Njoro. Protein content was determined using method 44 from Association of American Cereal Chemists. Tannins were determined using the Improved Vanillin-Hydrochloric Acid Assay (IVHAA) while minerals; iron and zinc were determined using Atomic Absorption Spectrophotometry. Significant site by variety by sowing date interactions at P < 0.05 level of probability were obtained for protein, iron and zinc content of sorghum varieties but not for tannins. Highest protein content of 11.55 per cent was achieved when varieties were sown on 29 th June in Bor. Protein of 11.40 per cent was obtained when varieties were sown on 18 th June in Arek. At Bor, Beer, Dhet and Seredo varieties; 12.76, 11.0 and 10.64 per cent protein respectively were recorded. At Arek, Beer Seredo and Dhet attained 12.03, 10.92 and 10.60 per cent protein content respectively. Sorghum varieties sown on 18 th June had less tannins of 1.19 mgml -1 in Bor and 1.09 mgml -1 in Arek while varieties sown on 10 th July had highest tannins 1.49 mgml -1 in Bor and 1.40 mgml -1 in Arek. Amongst the varieties, Seredo and Agany contained high tannins while Beer and Dhet contained less tannins. Iron and zinc content in sorghum showed higher values for 29 th June sowing date both in Bor and Arek. The study showed that Beer and Dhet varieties have good quality grains that can be used to improve human nutrition, hence can be recommended to sorghum farmers in Bor and Arek region.

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Claims 18

Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Site by variety by sowing date interactions were significant (P < 0.05) for protein, iron and zinc content of sorghum varieties.

Taxon
sorghumSorghume0
Treatment
sowing datee0
Outcome
protein, iron and zinc contente0

Not reportedDirection

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Significant site by variety by sowing date interactions at P < 0.05 level of probability were obtained for protein, iron and zinc content of sorghum varieties but not for tannins”

✓ located verbatim in the source · abstract, characters 1094–1272 · show in text ↑
Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

The site by variety by sowing date interaction was not significant for tannins in sorghum varieties.

Taxon
sorghumSorghume0
Treatment
sowing datee0
Outcome
tanninse0

Not reportedDirection

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Significant site by variety by sowing date interactions at P < 0.05 level of probability were obtained for protein, iron and zinc content of sorghum varieties but not for tannins”

✓ located verbatim in the source · abstract, characters 1094–1272 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Highest protein content, 11.55 per cent, was achieved in sorghum varieties sown on 29 June in Bor.

Taxon
Sorghum bicolor L. moenchSorghum bicolort0
Treatment
sown on 29 th Junee0
Outcome
protein contente0
Direction
Higheste0
Value
11.55 per cente0
Setting
Bore0

Not reportedComparator

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Highest protein content of 11.55 per cent was achieved when varieties were sown on 29 th June in Bor”

✓ located verbatim in the source · abstract, characters 1274–1374 · show in text ↑
t0

“Sorghum bicolor L. moench”

✓ located verbatim in the source · title, characters 51–76 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Sorghum varieties sown on 18 June in Arek had a protein content of 11.40 per cent.

Taxon
Sorghum bicolor L. moenchSorghum bicolort0
Treatment
sown on 18 th Junee0
Outcome
Proteine0
Value
11.40 per cente0
Setting
Areke0

Not reportedComparatorDirection

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Protein of 11.40 per cent was obtained when varieties were sown on 18 th June in Arek”

✓ located verbatim in the source · abstract, characters 1376–1461 · show in text ↑
t0

“Sorghum bicolor L. moench”

✓ located verbatim in the source · title, characters 51–76 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Sorghum variety Beer recorded 12.76 protein at Bor.

Taxon
Sorghum bicolor L. moenchSorghum bicolort0
Material
Beere0
Outcome
proteine0
Value
12.76e0
Setting
Bore0

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“At Bor, Beer, Dhet and Seredo varieties; 12.76, 11.0 and 10.64 per cent protein respectively were recorded”

✓ located verbatim in the source · abstract, characters 1463–1569 · show in text ↑
t0

“Sorghum bicolor L. moench”

✓ located verbatim in the source · title, characters 51–76 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Sorghum variety Dhet recorded 11.0 protein at Bor.

Taxon
Sorghum bicolor L. moenchSorghum bicolort0
Material
Dhete0
Outcome
proteine0
Value
11.0e0
Setting
Bore0

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“At Bor, Beer, Dhet and Seredo varieties; 12.76, 11.0 and 10.64 per cent protein respectively were recorded”

✓ located verbatim in the source · abstract, characters 1463–1569 · show in text ↑
t0

“Sorghum bicolor L. moench”

✓ located verbatim in the source · title, characters 51–76 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Sorghum variety Seredo recorded 10.64 per cent protein at Bor.

Taxon
Sorghum bicolor L. moenchSorghum bicolort0
Material
Seredoe0
Outcome
proteine0
Value
10.64 per cente0
Setting
Bore0

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“At Bor, Beer, Dhet and Seredo varieties; 12.76, 11.0 and 10.64 per cent protein respectively were recorded”

✓ located verbatim in the source · abstract, characters 1463–1569 · show in text ↑
t0

“Sorghum bicolor L. moench”

✓ located verbatim in the source · title, characters 51–76 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Sorghum variety Beer recorded 12.03 protein at Arek.

Taxon
Sorghum bicolor L. moenchSorghum bicolort0
Material
Beere0
Outcome
proteine0
Value
12.03e0
Setting
Areke0

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“At Arek, Beer Seredo and Dhet attained 12.03, 10.92 and 10.60 per cent protein content respectively”

✓ located verbatim in the source · abstract, characters 1571–1670 · show in text ↑
t0

“Sorghum bicolor L. moench”

✓ located verbatim in the source · title, characters 51–76 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Sorghum variety Seredo recorded 10.92 protein at Arek.

Taxon
Sorghum bicolor L. moenchSorghum bicolort0
Material
Seredoe0
Outcome
proteine0
Value
10.92e0
Setting
Areke0

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“At Arek, Beer Seredo and Dhet attained 12.03, 10.92 and 10.60 per cent protein content respectively”

✓ located verbatim in the source · abstract, characters 1571–1670 · show in text ↑
t0

“Sorghum bicolor L. moench”

✓ located verbatim in the source · title, characters 51–76 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Sorghum variety Dhet recorded 10.60 per cent protein at Arek.

Taxon
Sorghum bicolor L. moenchSorghum bicolort0
Material
Dhete0
Outcome
proteine0
Value
10.60 per cente0
Setting
Areke0

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“At Arek, Beer Seredo and Dhet attained 12.03, 10.92 and 10.60 per cent protein content respectively”

✓ located verbatim in the source · abstract, characters 1571–1670 · show in text ↑
t0

“Sorghum bicolor L. moench”

✓ located verbatim in the source · title, characters 51–76 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sorghum varieties sown on 18 June had less tannins (1.19 mg/ml) in Bor.

Taxon
SorghumSorghume0
Treatment
sown on 18 th Junee0
Outcome
tanninse0
Direction
lesse0
Value
1.19 mgml -1e0
Setting
Bore0

Not reportedComparator

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Sorghum varieties sown on 18 th June had less tannins of 1.19 mgml -1 in Bor”

✓ located verbatim in the source · abstract, characters 1672–1748 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sorghum varieties sown on 18 June had less tannins (1.09 mg/ml) in Arek.

Taxon
SorghumSorghume0
Treatment
sown on 18 th Junee0
Outcome
tanninse0
Direction
lesse0
Value
1.09 mgml -1e0
Setting
Areke0

Not reportedComparator

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Sorghum varieties sown on 18 th June had less tannins of 1.19 mgml -1 in Bor and 1.09 mgml -1 in Arek”

✓ located verbatim in the source · abstract, characters 1672–1773 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Sorghum varieties sown on 10 July had the highest tannins (1.49 mg/ml) in Bor.

Taxon
Sorghum bicolor L. moenchSorghum bicolort0
Treatment
sown on 10 th Julye0
Outcome
tanninse0
Direction
higheste0
Value
1.49 mgml -1e0
Setting
Bore0

Not reportedComparator

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“varieties sown on 10 th July had highest tannins 1.49 mgml -1 in Bor”

✓ located verbatim in the source · abstract, characters 1780–1848 · show in text ↑
t0

“Sorghum bicolor L. moench”

✓ located verbatim in the source · title, characters 51–76 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Sorghum varieties sown on 10 July had the highest tannins (1.40 mg/ml) in Arek.

Taxon
Sorghum bicolor L. moenchSorghum bicolort0
Treatment
sown on 10 th Julye0
Outcome
tanninse0
Direction
higheste0
Value
1.40 mgml -1e0
Setting
Areke0

Not reportedComparator

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“varieties sown on 10 th July had highest tannins 1.49 mgml -1 in Bor and 1.40 mgml -1 in Arek”

✓ located verbatim in the source · abstract, characters 1780–1873 · show in text ↑
t0

“Sorghum bicolor L. moench”

✓ located verbatim in the source · title, characters 51–76 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Among sorghum varieties, Seredo and Agany contained high tannins.

Taxon
Sorghum bicolor L. moenchSorghum bicolort0
Material
Seredo and Aganye0
Outcome
tanninse0
Direction
highe0

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Seredo and Agany contained high tannins”

✓ located verbatim in the source · abstract, characters 1898–1937 · show in text ↑
t0

“Sorghum bicolor L. moench”

✓ located verbatim in the source · title, characters 51–76 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Among sorghum varieties, Beer and Dhet contained less tannins.

Taxon
Sorghum bicolor L. moenchSorghum bicolort0
Material
Beer and Dhete0
Outcome
tanninse0
Direction
lesse0

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Beer and Dhet contained less tannins”

✓ located verbatim in the source · abstract, characters 1944–1980 · show in text ↑
t0

“Sorghum bicolor L. moench”

✓ located verbatim in the source · title, characters 51–76 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Iron and zinc content in sorghum was higher with the 29 June sowing date in both Bor and Arek.

Taxon
sorghumSorghume0
Treatment
29 th June sowing datee0
Outcome
Iron and zinc contente0
Direction
highere0
Setting
Bor and Areke0

Not reportedComparator

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Iron and zinc content in sorghum showed higher values for 29 th June sowing date both in Bor and Arek”

✓ located verbatim in the source · abstract, characters 1982–2083 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Beer and Dhet sorghum varieties have good quality grains for human nutrition and can be recommended to sorghum farmers in the Bor and Arek region.

Taxon
sorghumSorghume0
Material
Beer and Dhete0
Outcome
good quality grainse0
Setting
Bor and Arek regione0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The study showed that Beer and Dhet varieties have good quality grains that can be used to improve human nutrition, hence can be recommended to sorghum farmers in Bor and Arek region”

✓ located verbatim in the source · abstract, characters 2085–2267 · show in text ↑

sowing time · nutrient: content · SorghumResults agree

2 papers: 2 positive, 0 negative or no effect

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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.