Abstract
Soybean [Glycine max (L.) Merr.] cultivar ‘Chookdu 1’ (registration number: No. 7159) and ‘Chookdu 2’ (registration number: No. 6758) were developed as forage soybean cultivars at Kyungpook National University, Republic of Korea. They were grown in tests over three years and compared with a commercial seed cultivar for seed yield and forage productivity planted in the same row in mixed plantings with corn. Chookdu 1 and Chookdu 2 are tall, indeterminate growth habit selections from a cross between wild soybean (Glycine soja Sieb. & Zucc.), ‘PI 483463’, and cultivated soybean, ‘Hutcheson’ (PI 518664). The plant height of Chookdu 1 and Chookdu 2 were 80.9 cm and 81.4 cm, respectively, compared to 54.7 cm for the ‘Pungsannamul’ commercial seed check. The three-year seed yield of Chookdu 1 and Chookdu 2 was 2.0 and 2.2 t/ha, respectively, and not significantly different from Pungsannamul at 2.4 t/ha. Of the two cultivars Chookdu 2 averaged the most total forage fresh weight (65.0 t/ha). The three year mean forage yield of mixed-planting of corn and Chookdu 2 and Chookdu 1 was 10.4% and 3.8% greater, respectively, than corn monoculture. Results show Chookdu 1 and Chookdu 2 are suitable soybean cultivars for mixed planting in the same row with corn to improve forage yield. They should be useful as parents to use in breeding to develop forage-type soybeans of high quality and yield for use in livestock feed.
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Claims 8
Claim · model-written summary
Chookdu 1 reached 80.9 cm in height versus 54.7 cm for the commercial check.
- Taxon
- Soybean
Glycine maxt0 - Material
- Chookdu 1e0
- Outcome
- plant heighte0
- Value
- 80.9 cme0
- Qualifier
- 54.7 cme0
- Comparator
- ‘Pungsannamul’e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plant height of Chookdu 1 and Chookdu 2 were 80.9 cm and 81.4 cm, respectively, compared to 54.7 cm for the ‘Pungsannamul’ commercial seed check”
t0“Soybean”
Claim · model-written summary
Chookdu 2 reached 81.4 cm in height versus 54.7 cm for the commercial check.
- Taxon
- SoybeanGlycine maxt0
- Material
- Chookdu 2e0
- Outcome
- plant heighte0
- Value
- 81.4 cme0
- Qualifier
- 54.7 cme0
- Comparator
- ‘Pungsannamul’e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plant height of Chookdu 1 and Chookdu 2 were 80.9 cm and 81.4 cm, respectively, compared to 54.7 cm for the ‘Pungsannamul’ commercial seed check”
t0“Soybean”
Claim · model-written summary
Chookdu 1 seed yield was 2.0 t/ha, without a significant difference from Pungsannamul.
- Taxon
- SoybeanGlycine maxt0
- Material
- Chookdu 1e0
- Outcome
- seed yielde0
- Value
- 2.0 and 2.2 t/hae0
- Qualifier
- 2.4 t/hae0
- Comparator
- Pungsannamule0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The three-year seed yield of Chookdu 1 and Chookdu 2 was 2.0 and 2.2 t/ha, respectively, and not significantly different from Pungsannamul at 2.4 t/ha”
t0“Soybean”
Claim · model-written summary
Chookdu 2 seed yield was 2.2 t/ha, without a significant difference from Pungsannamul.
- Taxon
- SoybeanGlycine maxt0
- Material
- Chookdu 2e0
- Outcome
- seed yielde0
- Value
- 2.2 t/hae0
- Qualifier
- 2.4 t/hae0
- Comparator
- Pungsannamule0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The three-year seed yield of Chookdu 1 and Chookdu 2 was 2.0 and 2.2 t/ha, respectively, and not significantly different from Pungsannamul at 2.4 t/ha”
t0“Soybean”
Claim · model-written summary
Chookdu 2 had the greatest mean total forage fresh weight, 65.0 t/ha.
- Taxon
- SoybeanGlycine maxt0
- Material
- Chookdu 2e0
- Outcome
- total forage fresh weighte0
- Direction
- moste0
- Value
- 65.0 t/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of the two cultivars Chookdu 2 averaged the most total forage fresh weight (65.0 t/ha)”
t0“Soybean”
Claim · model-written summary
Corn mixed with Chookdu 2 yielded 10.4% more forage than corn alone.
- Taxon
- SoybeanGlycine maxt0
- Material
- Chookdu 2e0
- Treatment
- mixed-planting of corn and Chookdu 2e0
- Outcome
- forage yielde0
- Direction
- greatere0
- Value
- 10.4%e0
- Comparator
- corn monoculturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The three year mean forage yield of mixed-planting of corn and Chookdu 2 and Chookdu 1 was 10.4% and 3.8% greater, respectively, than corn monoculture”
t0“Soybean”
Claim · model-written summary
Corn mixed with Chookdu 1 yielded 3.8% more forage than corn alone.
- Taxon
- SoybeanGlycine maxt0
- Material
- Chookdu 1e0
- Treatment
- mixed-planting of corn and Chookdu 2 and Chookdu 1e0
- Outcome
- forage yielde0
- Direction
- greatere0
- Value
- 3.8%e0
- Comparator
- corn monoculturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The three year mean forage yield of mixed-planting of corn and Chookdu 2 and Chookdu 1 was 10.4% and 3.8% greater, respectively, than corn monoculture”
t0“Soybean”
Claim · model-written summary
The authors judge both Chookdu cultivars suitable for mixed planting with corn and useful as forage breeding parents.
- Taxon
- soybeanGlycine maxe0
- Material
- Chookdu 1 and Chookdu 2e0
- Outcome
- suitable soybean cultivars for mixed planting in the same row with corn to improve forage yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results show Chookdu 1 and Chookdu 2 are suitable soybean cultivars for mixed planting in the same row with corn to improve forage yield. They should be useful as parents to use in breeding to develop forage-type soybeans of high quality and yield for use in livestock feed”
The same questions in other papers
Zea mays subsp. mays · yield · Glycine max (soybean)Results differ
47 papers in the same direction as this paper · 20 in the opposite direction · 2 reporting no difference from an alternative
- negative
- no effect
- no effect
66 papers more in this group
See all 70 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.