Paper · 1999 · Plant Production Science

Grain Yield of Sorghum Cultivars in a Double Cropping System

Nguyen Duy Can; Tomohiko Yoshida

16
claims
34
verbatim quotes
9
citations
2
research areas
✓
Open access · cc-by

Abstract

Field experiments were conducted at the experimental field of Kyushu University, northern Kyushu in 1996 and 1997 to investigate the possibility of a double cropping of sorghum using early maturity cultivars. The effects of sowing date (early or late) and the cultivar on the yield were also examined. On the average, grain yield from double cropping was 556 g m−2 in 1996 and 746 g m−2 in 1997. Sowing date greatly influenced the major traits of the summer crop, but not significantly those in the spring crop, except for the days to heading. Late summer sowing decreased grain yield as much as 41.9%, decreased 100-grain weight by 22.4% and extended days to heading. Early sowing, early in April and late in July or early in August, is recommended for spring and summer crops, respectively, in a double cropping system to obtain a high grain yield. SA 403, D12, C8, C9, D5 C10-1 F4 line and D5 × C8 (F1 hybrid) were considered to be suitable for a double cropping system.

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 16

Observationobservedoriginal resultmeasured

Claim · model-written summary

Double cropping gave a grain yield of 556 g m−2 in 1996.

Taxon
sorghumSorghumt0
Outcome
grain yield from double croppinge1
Value
556 g m−2e1
Setting
experimental field of Kyushu University, northern Kyushue0

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

t0

“Grain Yield of Sorghum Cultivars”

✓ located verbatim in the source · title, characters 0–32 · show in text ↑
e0

“Field experiments were conducted at the experimental field of Kyushu University, northern Kyushu in 1996 and 1997”

✓ located verbatim in the source · abstract, characters 0–113 · show in text ↑
e1

“grain yield from double cropping was 556 g m−2 in 1996 and 746 g m−2 in 1997”

✓ located verbatim in the source · abstract, characters 318–394 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Double cropping gave a grain yield of 746 g m−2 in 1997.

Taxon
sorghumSorghumt0
Outcome
grain yield from double croppinge1
Value
746 g m−2e1
Setting
experimental field of Kyushu University, northern Kyushue0

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

t0

“Grain Yield of Sorghum Cultivars”

✓ located verbatim in the source · title, characters 0–32 · show in text ↑
e0

“Field experiments were conducted at the experimental field of Kyushu University, northern Kyushu in 1996 and 1997”

✓ located verbatim in the source · abstract, characters 0–113 · show in text ↑
e1

“grain yield from double cropping was 556 g m−2 in 1996 and 746 g m−2 in 1997”

✓ located verbatim in the source · abstract, characters 318–394 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Late summer sowing decreased grain yield of double-cropped sorghum by as much as 41.9%.

Taxon
sorghumSorghumt0
Treatment
Late summer sowinge0
Outcome
grain yielde0
Direction
decreasede0
Value
41.9%e0

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

t0

“Grain Yield of Sorghum Cultivars”

✓ located verbatim in the source · title, characters 0–32 · show in text ↑
e0

“Late summer sowing decreased grain yield as much as 41.9%, decreased 100-grain weight by 22.4% and extended days to heading”

✓ located verbatim in the source · abstract, characters 544–667 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Late summer sowing decreased 100-grain weight of double-cropped sorghum by 22.4%.

Taxon
sorghumSorghumt0
Treatment
Late summer sowinge0
Outcome
100-grain weighte0
Direction
decreasede0
Value
22.4%e0

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

t0

“Grain Yield of Sorghum Cultivars”

✓ located verbatim in the source · title, characters 0–32 · show in text ↑
e0

“Late summer sowing decreased grain yield as much as 41.9%, decreased 100-grain weight by 22.4% and extended days to heading”

✓ located verbatim in the source · abstract, characters 544–667 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Late summer sowing extended days to heading of double-cropped sorghum.

Taxon
sorghumSorghumt0
Treatment
Late summer sowinge0
Outcome
days to headinge0
Direction
extendede0

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

t0

“Grain Yield of Sorghum Cultivars”

✓ located verbatim in the source · title, characters 0–32 · show in text ↑
e0

“Late summer sowing decreased grain yield as much as 41.9%, decreased 100-grain weight by 22.4% and extended days to heading”

✓ located verbatim in the source · abstract, characters 544–667 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Sowing date greatly influenced the major traits of the summer sorghum crop.

Taxon
sorghumSorghumt0
Treatment
Sowing datee0
Outcome
major traits of the summer crope0
Qualifier
greatly influencede0

Not reportedComparatorDirection

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

t0

“Grain Yield of Sorghum Cultivars”

✓ located verbatim in the source · title, characters 0–32 · show in text ↑
e0

“Sowing date greatly influenced the major traits of the summer crop, but not significantly those in the spring crop, except for the days to heading”

✓ located verbatim in the source · abstract, characters 396–542 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Sowing date did not significantly influence the traits of the spring sorghum crop.

Taxon
sorghumSorghumt0
Treatment
Sowing datee0
Outcome
those in the spring crope0
Direction
not significantlye0

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

t0

“Grain Yield of Sorghum Cultivars”

✓ located verbatim in the source · title, characters 0–32 · show in text ↑
e0

“Sowing date greatly influenced the major traits of the summer crop, but not significantly those in the spring crop, except for the days to heading”

✓ located verbatim in the source · abstract, characters 396–542 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Sowing date influenced days to heading of the spring sorghum crop.

Taxon
sorghumSorghumt0
Treatment
Sowing datee0
Outcome
days to headinge0
Qualifier
spring crope0

Not reportedComparatorDirection

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

t0

“Grain Yield of Sorghum Cultivars”

✓ located verbatim in the source · title, characters 0–32 · show in text ↑
e0

“Sowing date greatly influenced the major traits of the summer crop, but not significantly those in the spring crop, except for the days to heading”

✓ located verbatim in the source · abstract, characters 396–542 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Early sowing is recommended for spring and summer sorghum crops in a double cropping system to obtain a high grain yield.

Taxon
sorghumSorghumt0
Outcome
Early sowinge0
Qualifier
early in April and late in July or early in Auguste0

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

t0

“Grain Yield of Sorghum Cultivars”

✓ located verbatim in the source · title, characters 0–32 · show in text ↑
e0

“Early sowing, early in April and late in July or early in August, is recommended for spring and summer crops, respectively, in a double cropping system to obtain a high grain yield”

✓ located verbatim in the source · abstract, characters 669–849 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

SA 403 was considered suitable for a double cropping system.

Taxon
sorghumSorghumt0
Material
SA 403e0
Outcome
suitable for a double cropping systeme0

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

t0

“Grain Yield of Sorghum Cultivars”

✓ located verbatim in the source · title, characters 0–32 · show in text ↑
e0

“SA 403, D12, C8, C9, D5 C10-1 F4 line and D5 × C8 (F1 hybrid) were considered to be suitable for a double cropping system”

✓ located verbatim in the source · abstract, characters 851–972 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

D12 was considered suitable for a double cropping system.

Taxon
sorghumSorghumt0
Material
D12e0
Outcome
suitable for a double cropping systeme0

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

t0

“Grain Yield of Sorghum Cultivars”

✓ located verbatim in the source · title, characters 0–32 · show in text ↑
e0

“SA 403, D12, C8, C9, D5 C10-1 F4 line and D5 × C8 (F1 hybrid) were considered to be suitable for a double cropping system”

✓ located verbatim in the source · abstract, characters 851–972 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

C8 was considered suitable for a double cropping system.

Taxon
sorghumSorghumt0
Material
C8e0
Outcome
suitable for a double cropping systeme0

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

t0

“Grain Yield of Sorghum Cultivars”

✓ located verbatim in the source · title, characters 0–32 · show in text ↑
e0

“SA 403, D12, C8, C9, D5 C10-1 F4 line and D5 × C8 (F1 hybrid) were considered to be suitable for a double cropping system”

✓ located verbatim in the source · abstract, characters 851–972 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

C9 was considered suitable for a double cropping system.

Taxon
sorghumSorghumt0
Material
C9e0
Outcome
suitable for a double cropping systeme0

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

t0

“Grain Yield of Sorghum Cultivars”

✓ located verbatim in the source · title, characters 0–32 · show in text ↑
e0

“SA 403, D12, C8, C9, D5 C10-1 F4 line and D5 × C8 (F1 hybrid) were considered to be suitable for a double cropping system”

✓ located verbatim in the source · abstract, characters 851–972 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

D5 was considered suitable for a double cropping system.

Taxon
sorghumSorghumt0
Material
D5e0
Outcome
suitable for a double cropping systeme0

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

t0

“Grain Yield of Sorghum Cultivars”

✓ located verbatim in the source · title, characters 0–32 · show in text ↑
e0

“SA 403, D12, C8, C9, D5 C10-1 F4 line and D5 × C8 (F1 hybrid) were considered to be suitable for a double cropping system”

✓ located verbatim in the source · abstract, characters 851–972 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The C10-1 F4 line was considered suitable for a double cropping system.

Taxon
sorghumSorghumt0
Material
C10-1 F4 linee0
Outcome
suitable for a double cropping systeme0

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

t0

“Grain Yield of Sorghum Cultivars”

✓ located verbatim in the source · title, characters 0–32 · show in text ↑
e0

“SA 403, D12, C8, C9, D5 C10-1 F4 line and D5 × C8 (F1 hybrid) were considered to be suitable for a double cropping system”

✓ located verbatim in the source · abstract, characters 851–972 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The D5 × C8 (F1 hybrid) was considered suitable for a double cropping system.

Taxon
sorghumSorghumt0
Material
D5 × C8 (F1 hybrid)e0
Outcome
suitable for a double cropping systeme0

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

t0

“Grain Yield of Sorghum Cultivars”

✓ located verbatim in the source · title, characters 0–32 · show in text ↑
e0

“SA 403, D12, C8, C9, D5 C10-1 F4 line and D5 × C8 (F1 hybrid) were considered to be suitable for a double cropping system”

✓ located verbatim in the source · abstract, characters 851–972 · show in text ↑

sowing time · yield · SorghumPositive and negative results

71 papers: 50 positive, 21 negative or no effect

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

  1. positive
  2. positive
  3. positive

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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.