Abstract
The reduction of sowing density is a strategy that aims to reduce production costs with no losses in grain yield. This study aimed to evaluate the yield components and contents of protein and oil in grains from branches and stems of two soybean cultivars as a function of the reduction in sowing density. The experiments were conducted in two growing seasons (2016/17 and 2017/18) in Londrina, PR, Brazil. Two soybean cultivars were evaluated: BRS 1010 IPRO and NS 5959 IPRO. The experimental design was completely randomized blocks in a split-plot scheme, with five replications. Plots consisted of five sowing densities (100, 80, 60, 40, and 20% of that indicated by the cultivar breeder) and subplots consisted of two plant strata (branches and stems). The number of pods m?2 and grain, protein, and oil yield increased in the branches and decreased in the stems with a decrease in sowing density. The number of grains per pod is higher in the stems than in the branches, regardless of the cultivar. The protein content in the grains is higher in the branches than in the stems for the cultivar BRS 1010 IPRO and decreased with a reduction in sowing density. The thousand-grain weight of the cultivar NS 5959 IPRO decreased with a reduction in sowing density. The oil content in the grains was not influenced by the studied factors.
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Claims 7
Claim · model-written summary
Lower sowing density increased branch pod number and grain, protein, and oil yield.
- Taxon
- soybean
Glycine maxe1 - Organ / stage
- branchese0
- Treatment
- decrease in sowing densitye0
- Outcome
- number of pods m?2 and grain, protein, and oil yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of pods m?2 and grain, protein, and oil yield increased in the branches and decreased in the stems with a decrease in sowing density.”
e1“two soybean cultivars”
Claim · model-written summary
Lower sowing density decreased stem pod number and grain, protein, and oil yield.
- Taxon
- soybeanGlycine maxe1
- Organ / stage
- stemse0
- Treatment
- decrease in sowing densitye0
- Outcome
- number of pods m?2 and grain, protein, and oil yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of pods m?2 and grain, protein, and oil yield increased in the branches and decreased in the stems with a decrease in sowing density.”
e1“two soybean cultivars”
Claim · model-written summary
Soybean stems had more grains per pod than branches, regardless of cultivar.
- Taxon
- soybeanGlycine maxe1
- Organ / stage
- stemse0
- Outcome
- number of grains per pode0
- Direction
- highere0
- Comparator
- branchese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of grains per pod is higher in the stems than in the branches, regardless of the cultivar.”
e1“two soybean cultivars”
Claim · model-written summary
BRS 1010 IPRO branch grains had higher protein content than stem grains.
- Taxon
- soybeanGlycine maxe1
- Material
- BRS 1010 IPROe0
- Organ / stage
- branchese0
- Outcome
- protein content in the grainse0
- Direction
- highere0
- Comparator
- stemse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The protein content in the grains is higher in the branches than in the stems for the cultivar BRS 1010 IPRO”
e1“two soybean cultivars”
Claim · model-written summary
Protein content in BRS 1010 IPRO grains decreased with lower sowing density.
- Taxon
- soybeanGlycine maxe1
- Material
- BRS 1010 IPROe0
- Treatment
- reduction in sowing densitye0
- Outcome
- protein content in the grainse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The protein content in the grains is higher in the branches than in the stems for the cultivar BRS 1010 IPRO and decreased with a reduction in sowing density.”
e1“two soybean cultivars”
Claim · model-written summary
NS 5959 IPRO thousand-grain weight decreased as sowing density fell.
- Taxon
- soybeanGlycine maxe1
- Material
- NS 5959 IPROe0
- Treatment
- reduction in sowing densitye0
- Outcome
- thousand-grain weighte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The thousand-grain weight of the cultivar NS 5959 IPRO decreased with a reduction in sowing density.”
e1“two soybean cultivars”
Claim · model-written summary
Studied density and stratum factors did not influence grain oil content.
- Taxon
- soybeanGlycine maxe1
- Treatment
- five sowing densitiese2
- Outcome
- oil content in the grainse0
- Direction
- not influencede0
- Qualifier
- two plant strata (branches and stems)e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The oil content in the grains was not influenced by the studied factors.”
e1“two soybean cultivars”
e2“five sowing densities (100, 80, 60, 40, and 20% of that indicated by the cultivar breeder) and subplots consisted of two plant strata (branches and stems)”
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See all 305 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.