Paper · 2004 · Journal of The Korean Society of Grassland and Forage Science

Effects of Planting Density on Growth, Forage Yield and Chemical Composition of Jeju Native Sorghum(Sorghum bicolor L.)

Nam-Ki Cho; Young-Kil Kang; Chang-Khil Song; et al.

13
claims
26
verbatim quotes
12
citations
3
research areas
✓
Open access

Abstract

본 연구는 제주지역에서 재식밀도($5{\times}5cm,\;10{\times}10cm,\;15{\times}15cm,\;20{\times}20cm,\;25{\times}25cm\;30{\times}30cm$)에 따른 제주재래수수의 생육, 수량 및 사료가치를 구명하기 위하여 2000년 4월 3일부터 9월 6일까지 수행한 결과를 요약하면 다음과 같다. 출수일 수는 66일에서 69일로 밀식함에 따라 지연되는 경향이였다. 초장은 재식밀도가 $30{\times}30cm$ 재식구에서 195.1cm이었던 것이 밀식함에 따라 점차 커져서 $10{\times}10cm$ 재식구에서 216.5cm로 가장 길었으나, 그 이상의 밀도에서는 짧아졌고, 경직경과 엽수는 밀식할 수록 낮아지는 경향을 보였다. 재식밀도가 $30{\times}30cm$에서 $10{\times}10cm$로 밀식함에 따라 생초수량은 25.4 MT/ha에서 61.3 MT/ha로 건물수량은 5.8 MT/ha에서 16.5 MT/ha, 단백질 수량은 0.4 MT/ha에서 1.5 MT/ha로, TDN 수량은 2.7 MT/ha에서 8.8 MT/ha로 증수되었으나, 그 이상으로 밀식할 경우에는 감수하였다. 재식거리가 좁아짐에 따라 조단백질 함량은 $7.0\%$에서 $9.0\%$로 조지방 함량은 $1.7\%$에서 $4.4\%$로, 가용무질소물 함량은 $36.9\%$에서 $38.4\%$로, TDN 함량은 $46.1\%$에서 $55.5\%$로 증가하였으나, 이와는 반대로 조섬유 함량은 $43.9\%$에서 $37.1\%$로, 조회분 함량은 $8.4\%$에서 $6.8\%$로 낮아지는 경향이었다. Jeju native sorghums were grown with six different planting densities ($5{\times}5cm,\;10{\times}10cm,\;15{\times}15cm,\;20{\times}20cm,\;25{\times}25cm\;and\;30{\times}30cm$) from April 3 to September 6 in 2000 in Jeju island to determine the influence to growth, yield and feed value by the planting densities. Days to heading were delayed from 66 days to 69 days as increasing of plant density. Plant height was 195.1cm at $30{\times}30cm$ plot, whereas that was 216.5cm at $10{\times}10cm$ plot, indicating that the plant was higher by the decrease of the planting density. As plant density increased, the number of leaves and steam diameter were decreased. Fresh forage yield increased from 25.4 to 61.3 MT/ha, dry matter (DM) yield from 5.8 to 16.5 MT/ha, crude protein (CP) yield from 0.4 to 1.5 MT/ha and total digestible nutrients (TDN) yield from 2.7 to 8.8 MT/ha as planting density from $30{\times}30cm\;to\;10{\times}10cm$ plot. Crude protein content increased from 7.0 to $9.0\%$, ether extract content from 1.7 to $4.4\%$, nitrogen free extract content from 36.9 to $38.4\%$ and TDN content from 46.1 to $55.5\%$ as planting density was decreased. whereas crude fiber content decreased from 43.9 to $37.1\%$ and crude ash content from 8.4 to $6.8\%$.

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Claims 13

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Heading was delayed from 66 to 69 days with increasing planting density.

Taxon
SorghumSorghumt0
Treatment
increasing of plant densitye0
Outcome
Days to headinge0
Direction
delayede0
Value
66 days to 69 dayse0

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

“Days to heading were delayed from 66 days to 69 days as increasing of plant density.”

✓ located verbatim in the source · abstract, characters 1122–1206 · show in text ↑
t0

“Jeju Native Sorghum(Sorghum bicolor L.)”

✓ located verbatim in the source · title, characters 80–119 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Plant height rose from 195.1 cm at 30 × 30 cm to 216.5 cm at 10 × 10 cm.

Taxon
SorghumSorghumt0
Treatment
$10{\times}10cm$ plote0
Outcome
Plant heighte0
Value
216.5cme0
Qualifier
195.1cme0
Comparator
$30{\times}30cm$ plote0

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

“Plant height was 195.1cm at $30{\times}30cm$ plot, whereas that was 216.5cm at $10{\times}10cm$ plot”

✓ located verbatim in the source · abstract, characters 1207–1307 · show in text ↑
t0

“Jeju Native Sorghum(Sorghum bicolor L.)”

✓ located verbatim in the source · title, characters 80–119 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Leaf number and stem diameter decreased with increasing density.

Taxon
SorghumSorghumt0
Treatment
plant density increasede0
Outcome
number of leaves and steam diametere0
Direction
decreasede0

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

“As plant density increased, the number of leaves and steam diameter were decreased.”

✓ located verbatim in the source · abstract, characters 1387–1470 · show in text ↑
t0

“Jeju Native Sorghum(Sorghum bicolor L.)”

✓ located verbatim in the source · title, characters 80–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fresh forage yield increased from 25.4 to 61.3 MT/ha as spacing changed from 30 × 30 to 10 × 10 cm.

Taxon
SorghumSorghumt0
Outcome
Fresh forage yielde0
Direction
increasede0
Value
25.4 to 61.3 MT/hae0

Not reportedTreatmentComparator

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

“Fresh forage yield increased from 25.4 to 61.3 MT/ha”

✓ located verbatim in the source · abstract, characters 1471–1523 · show in text ↑
t0

“Jeju Native Sorghum(Sorghum bicolor L.)”

✓ located verbatim in the source · title, characters 80–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dry matter yield increased from 5.8 to 16.5 MT/ha.

Taxon
SorghumSorghumt0
Outcome
dry matter (DM) yielde0
Value
5.8 to 16.5 MT/hae0

Not reportedTreatmentComparatorDirection

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

“dry matter (DM) yield from 5.8 to 16.5 MT/ha”

✓ located verbatim in the source · abstract, characters 1525–1569 · show in text ↑
t0

“Jeju Native Sorghum(Sorghum bicolor L.)”

✓ located verbatim in the source · title, characters 80–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Crude protein yield increased from 0.4 to 1.5 MT/ha.

Taxon
SorghumSorghumt0
Outcome
crude protein (CP) yielde0
Value
0.4 to 1.5 MT/hae0

Not reportedTreatmentComparatorDirection

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

“crude protein (CP) yield from 0.4 to 1.5 MT/ha”

✓ located verbatim in the source · abstract, characters 1571–1617 · show in text ↑
t0

“Jeju Native Sorghum(Sorghum bicolor L.)”

✓ located verbatim in the source · title, characters 80–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

TDN yield increased from 2.7 to 8.8 MT/ha.

Taxon
SorghumSorghumt0
Outcome
total digestible nutrients (TDN) yielde0
Value
2.7 to 8.8 MT/hae0

Not reportedTreatmentComparatorDirection

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

“total digestible nutrients (TDN) yield from 2.7 to 8.8 MT/ha”

✓ located verbatim in the source · abstract, characters 1622–1682 · show in text ↑
t0

“Jeju Native Sorghum(Sorghum bicolor L.)”

✓ located verbatim in the source · title, characters 80–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Crude protein content rose from 7.0 to 9.0%.

Taxon
SorghumSorghumt0
Outcome
Crude protein contente0
Direction
increasede0
Value
7.0 to $9.0\%$e0

Not reportedTreatmentComparator

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

“Crude protein content increased from 7.0 to $9.0\%$”

✓ located verbatim in the source · abstract, characters 1751–1802 · show in text ↑
t0

“Jeju Native Sorghum(Sorghum bicolor L.)”

✓ located verbatim in the source · title, characters 80–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ether extract content rose from 1.7 to 4.4%.

Taxon
SorghumSorghumt0
Outcome
ether extract contente0
Value
1.7 to $4.4\%$e0

Not reportedTreatmentComparatorDirection

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

“ether extract content from 1.7 to $4.4\%$”

✓ located verbatim in the source · abstract, characters 1804–1845 · show in text ↑
t0

“Jeju Native Sorghum(Sorghum bicolor L.)”

✓ located verbatim in the source · title, characters 80–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen free extract content rose from 36.9 to 38.4%.

Taxon
SorghumSorghumt0
Outcome
nitrogen free extract contente0
Value
36.9 to $38.4\%$e0

Not reportedTreatmentComparatorDirection

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

“nitrogen free extract content from 36.9 to $38.4\%$”

✓ located verbatim in the source · abstract, characters 1847–1898 · show in text ↑
t0

“Jeju Native Sorghum(Sorghum bicolor L.)”

✓ located verbatim in the source · title, characters 80–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

TDN content rose from 46.1 to 55.5%.

Taxon
SorghumSorghumt0
Outcome
TDN contente0
Value
46.1 to $55.5\%$e0

Not reportedTreatmentComparatorDirection

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

“TDN content from 46.1 to $55.5\%$”

✓ located verbatim in the source · abstract, characters 1903–1936 · show in text ↑
t0

“Jeju Native Sorghum(Sorghum bicolor L.)”

✓ located verbatim in the source · title, characters 80–119 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Crude fiber content fell from 43.9 to 37.1%.

Taxon
SorghumSorghumt0
Outcome
crude fiber contente0
Direction
decreasede0
Value
43.9 to $37.1\%$e0

Not reportedTreatmentComparator

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

“crude fiber content decreased from 43.9 to $37.1\%$”

✓ located verbatim in the source · abstract, characters 1980–2031 · show in text ↑
t0

“Jeju Native Sorghum(Sorghum bicolor L.)”

✓ located verbatim in the source · title, characters 80–119 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Crude ash content fell from 8.4 to 6.8%.

Taxon
SorghumSorghumt0
Outcome
crude ash contente0
Value
8.4 to $6.8\%$e0

Not reportedTreatmentComparatorDirection

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

“crude ash content from 8.4 to $6.8\%$”

✓ located verbatim in the source · abstract, characters 2036–2073 · show in text ↑
t0

“Jeju Native Sorghum(Sorghum bicolor L.)”

✓ located verbatim in the source · title, characters 80–119 · show in text ↑

density · growth · SorghumPositive and negative results

34 papers: 22 positive, 12 negative or no effect

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

  1. positive
  2. positive
  3. positive

30 papers more in this group

See all 34 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.