Abstract
Increasing planting density is one of the key management practices to enhance soybean yield. A 2-yr field experiment was conducted in 2018 and 2019 including six planting densities and two soybean cultivars to determine the effects of planting density on branch number and yield, and analyze the contribution of branches to yield. The yield of ZZXA12938 was 4389 kg ha−1, which was significantly higher than that of ZH13 (+22.4%). In combination with planting year and cultivar, the soybean yield increased significantly by 16.2%, 31.4%, 41.4%, and 46.7% for every increase in density of 45,000 plants ha−1. Yield will not increase when planting density exceeds 315,000 plants ha−1. A correlation analysis showed that pod number per plant increased with the increased branch number, while pod number per unit area decreased; thus, soybean yield decreased. With the increase of branch number, the branch contribution to yield increased first, and then plateaued. ZH13 could produce a high yield under a lower planting density due to more branches, while ZZXA12938 had a higher yield potential under a higher planting density due to the smaller branch number and higher tolerance to close planting. Therefore, seed yield can be increased by selecting cultivars with a little branching capacity under moderately close planting.
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Claims 10
Claim · model-written summary
Cultivar ZZXA12938 yielded significantly more than ZH13 (4389 kg ha−1, +22.4%).
- Taxon
- soybean
Glycine maxe0 - Material
- ZZXA12938e1
- Outcome
- yielde1
- Direction
- highere1
- Value
- 4389 kg ha−1e1
- Qualifier
- +22.4%e1
- Comparator
- ZH13e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing planting density is one of the key management practices to enhance soybean yield”
e1“The yield of ZZXA12938 was 4389 kg ha−1, which was significantly higher than that of ZH13 (+22.4%)”
Claim · model-written summary
Soybean yield increased significantly by 16.2%, 31.4%, 41.4% and 46.7% for every 45,000 plants ha−1 increase in planting density.
- Taxon
- soybeanGlycine maxe0
- Treatment
- every increase in density of 45,000 plants ha−1e2
- Outcome
- soybean yielde2
- Direction
- increasede2
- Value
- 16.2%, 31.4%, 41.4%, and 46.7%e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing planting density is one of the key management practices to enhance soybean yield”
e2“In combination with planting year and cultivar, the soybean yield increased significantly by 16.2%, 31.4%, 41.4%, and 46.7% for every increase in density of 45,000 plants ha−1”
Claim · model-written summary
Yield does not increase when planting density exceeds 315,000 plants ha−1.
- Taxon
- soybeanGlycine maxe0
- Treatment
- planting density exceeds 315,000 plants ha−1e3
- Outcome
- Yielde3
- Direction
- will not increasee3
- Value
- 315,000 plants ha−1e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing planting density is one of the key management practices to enhance soybean yield”
e3“Yield will not increase when planting density exceeds 315,000 plants ha−1”
Claim · model-written summary
Pod number per plant increased with branch number in soybean.
- Taxon
- soybeanGlycine maxe0
- Treatment
- branch numbere4
- Outcome
- pod number per plante4
- Direction
- increasede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing planting density is one of the key management practices to enhance soybean yield”
e4“A correlation analysis showed that pod number per plant increased with the increased branch number, while pod number per unit area decreased; thus, soybean yield decreased”
Claim · model-written summary
Pod number per unit area decreased with branch number in soybean.
- Taxon
- soybeanGlycine maxe0
- Treatment
- branch numbere4
- Outcome
- pod number per unit areae4
- Direction
- decreasede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing planting density is one of the key management practices to enhance soybean yield”
e4“A correlation analysis showed that pod number per plant increased with the increased branch number, while pod number per unit area decreased; thus, soybean yield decreased”
Claim · model-written summary
Soybean yield decreased with branch number.
- Taxon
- soybeanGlycine maxe0
- Treatment
- branch numbere4
- Outcome
- soybean yielde4
- Direction
- decreasede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing planting density is one of the key management practices to enhance soybean yield”
e4“A correlation analysis showed that pod number per plant increased with the increased branch number, while pod number per unit area decreased; thus, soybean yield decreased”
Claim · model-written summary
Branch contribution to yield increased with branch number and then plateaued.
- Taxon
- soybeanGlycine maxe0
- Treatment
- increase of branch numbere5
- Outcome
- branch contribution to yielde5
- Direction
- increasede5
- Qualifier
- then plateauede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing planting density is one of the key management practices to enhance soybean yield”
e5“With the increase of branch number, the branch contribution to yield increased first, and then plateaued”
Claim · model-written summary
ZH13 produced a high yield under lower planting density, attributed to more branches.
- Taxon
- soybeanGlycine maxe0
- Material
- ZH13e6
- Treatment
- lower planting densitye6
- Outcome
- high yielde6
- Qualifier
- more branchese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing planting density is one of the key management practices to enhance soybean yield”
e6“ZH13 could produce a high yield under a lower planting density due to more branches”
Claim · model-written summary
ZZXA12938 had higher yield potential under higher planting density, attributed to smaller branch number and higher tolerance to close planting.
- Taxon
- soybeanGlycine maxe0
- Material
- ZZXA12938e7
- Treatment
- higher planting densitye7
- Outcome
- higher yield potentiale7
- Qualifier
- smaller branch number and higher tolerance to close plantinge7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing planting density is one of the key management practices to enhance soybean yield”
e7“ZZXA12938 had a higher yield potential under a higher planting density due to the smaller branch number and higher tolerance to close planting”
Claim · model-written summary
Seed yield can be increased by selecting cultivars with little branching capacity under moderately close planting.
- Taxon
- soybeanGlycine maxe0
- Outcome
- seed yielde7
- Qualifier
- under moderately close plantinge7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing planting density is one of the key management practices to enhance soybean yield”
e7“Therefore, seed yield can be increased by selecting cultivars with a little branching capacity under moderately close planting”
The same questions in other papers
density · yield · Glycine max (soybean)Positive and negative results
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