Abstract
A new soybean cultivar, ‘Soramizuki,’ was developed by crossing ‘Fukuyutaka A1 gou’ with ‘UA4805’ to integrate the high-yield characteristics of a US cultivar into a Japanese cultivar. While the high yield and yield stability of ‘Soramizuki’ have been confirmed, the specific high-yielding factors were previously unknown. This study compared the yield and yield components of ‘Soramizuki,’ ‘UA4805,’ and ‘Sachiyutaka A1 gou’ in experimental fields during 2021 and 2023. In these two-year experiments, ‘Soramizuki’ demonstrated a significantly higher yield than ‘Sachiyutaka A1 gou.’ Despite a significant yield decrease in ‘UA4805’ in 2023 due to stink bug damage, it showed the highest yield among the three cultivars in 2021. Both ‘Soramizuki’ and ‘UA4805’ exhibited more total nodes, pods per node, and seeds per pod compared to ‘Sachiyutaka A1 gou.’ These differences were attributed to a higher node increase rate, a larger number of blooms per node, and a higher ratio of pods with three seed cavities. Additionally, ‘Soramizuki’ and ‘UA4805’ had greater dry matter weight per plant than ‘Sachiyutaka A1 gou,’ though there were no variations in the harvest index. The light interception ratio per leaf area in the upper canopy was lower in both ‘Soramizuki’ and ‘UA4805.’ These results suggest that the high-yielding traits of ‘Soramizuki’ are derived from the US cultivar ‘UA4805.’
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Claims 7
Claim · model-written summary
Soramizuki had a significantly higher yield than Sachiyutaka A1 gou in two years of field experiments.
- Taxon
- soybean
Glycine maxe0 - Material
- ‘Soramizuki’e1
- Outcome
- yielde1
- Direction
- highere1
- Comparator
- ‘Sachiyutaka A1 goue1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A new soybean cultivar”
e1“‘Soramizuki’ demonstrated a significantly higher yield than ‘Sachiyutaka A1 gou”
Claim · model-written summary
UA4805 showed a significant yield decrease in 2023 due to stink bug damage.
- Taxon
- soybeanGlycine maxe0
- Material
- ‘UA4805’e1
- Interactor
- stink buge1pest
- Outcome
- yielde1
- Direction
- decreasee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A new soybean cultivar”
e1“a significant yield decrease in ‘UA4805’ in 2023 due to stink bug damage”
Claim · model-written summary
UA4805 showed the highest yield among the three cultivars in 2021.
- Taxon
- soybeanGlycine maxe0
- Outcome
- yielde1
- Direction
- higheste1
- Comparator
- the three cultivarse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A new soybean cultivar”
e1“it showed the highest yield among the three cultivars in 2021”
Claim · model-written summary
Soramizuki and UA4805 both had more total nodes, pods per node and seeds per pod than Sachiyutaka A1 gou.
- Taxon
- soybeanGlycine maxe0
- Material
- ‘Soramizuki’ and ‘UA4805’e1
- Outcome
- total nodes, pods per node, and seeds per pode1
- Direction
- moree1
- Comparator
- ‘Sachiyutaka A1 goue1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A new soybean cultivar”
e1“‘Soramizuki’ and ‘UA4805’ exhibited more total nodes, pods per node, and seeds per pod compared to ‘Sachiyutaka A1 gou”
Claim · model-written summary
The greater node, pod and seed numbers were attributed to a higher node increase rate, more blooms per node and a higher ratio of pods with three seed cavities.
- Taxon
- soybeanGlycine maxe0
- Outcome
- differencese1
- Qualifier
- higher node increase rate, a larger number of blooms per node, and a higher ratio of pods with three seed cavitiese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A new soybean cultivar”
e1“These differences were attributed to a higher node increase rate, a larger number of blooms per node, and a higher ratio of pods with three seed cavities”
Claim · model-written summary
Soramizuki and UA4805 had greater dry matter weight per plant than Sachiyutaka A1 gou.
- Taxon
- soybeanGlycine maxe0
- Material
- ‘Soramizuki’ and ‘UA4805’e1
- Outcome
- dry matter weight per plante1
- Direction
- greatere1
- Comparator
- ‘Sachiyutaka A1 goue1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A new soybean cultivar”
e1“‘Soramizuki’ and ‘UA4805’ had greater dry matter weight per plant than ‘Sachiyutaka A1 gou”
Claim · model-written summary
There were no variations in harvest index among the cultivars.
- Taxon
- soybeanGlycine maxe0
- Outcome
- harvest indexe1
- Direction
- no variationse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A new soybean cultivar”
e1“there were no variations in the harvest index”