Abstract
Soil compaction negatively impacts soil physical functions, affecting root growth and crop yield. This study aimed to evaluate different soybean cultivars’ agronomic and physiological performance as a function of compaction in Rhodic Ferralsol under no-tillage (NT) with a clay loam texture in the Brazilian Cerrado biome. The experiment was implemented in Rio Verde, Goias state, central Brazil. The experimental design was a randomized block with a 3x2 factorial scheme with six replications. The first factor corresponded to three soybean cultivars from different maturity groups (MG) identified as super-early (MG = 6.2); early (MG = 6.8), and medium (MG = 7.9). The second factor was the cultivation in compacted and uncompacted soil. The experiment evaluated the soil physical properties: bulk density, total porosity, water content at matric potential -6 kPa, aeration capacity and water and air holding capacity in 0.0-0.1 and 0.1-0.2 m layers, agronomic and physiological traits (gas exchange). Soil compaction negatively affected the agronomic traits of soybean cultivars, with better performance of the medium cycle cultivar. Net photosynthesis, stomatal conductance, and transpiration rates were reduced up to 50% under compaction and were not influenced by cultivars. Our findings suggest that soil compaction negatively affected the performance of soybean cultivars with lower maturity groups reflecting in lower plant height, shoot and root dry mass, number of pods and grain yield. The choice of soybean cultivars with a longer cycle can be an alternative to minimize the adverse effects of soil compaction.
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Claims 10
Claim · model-written summary
Compaction impaired agronomic traits of soybean cultivars.
- Taxon
- soybean cultivars
Glycine maxe0 - Treatment
- Soil compactione0
- Outcome
- agronomic traitse0
- Direction
- negatively affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil compaction negatively affected the agronomic traits of soybean cultivars”
Claim · model-written summary
The medium-cycle soybean cultivar performed better under compaction.
- Taxon
- soybean cultivarsGlycine maxt0
- Material
- medium cycle cultivare0
- Outcome
- better performancee0
- Direction
- bettere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with better performance of the medium cycle cultivar”
t0“Physiological and agronomic response of soybean cultivars to soil compaction in the Brazilian Cerrado”
Claim · model-written summary
Net photosynthesis fell by up to 50% under compaction.
- Taxon
- soybean cultivarsGlycine maxt0
- Treatment
- compactione0
- Outcome
- Net photosynthesise0
- Direction
- reducede0
- Value
- up to 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Net photosynthesis, stomatal conductance, and transpiration rates were reduced up to 50% under compaction and were not influenced by cultivars”
t0“Physiological and agronomic response of soybean cultivars to soil compaction in the Brazilian Cerrado”
Claim · model-written summary
Stomatal conductance fell by up to 50% under compaction.
- Taxon
- soybean cultivarsGlycine maxt0
- Treatment
- compactione0
- Outcome
- stomatal conductancee0
- Direction
- reducede0
- Value
- up to 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Net photosynthesis, stomatal conductance, and transpiration rates were reduced up to 50% under compaction and were not influenced by cultivars”
t0“Physiological and agronomic response of soybean cultivars to soil compaction in the Brazilian Cerrado”
Claim · model-written summary
Transpiration rates fell by up to 50% under compaction.
- Taxon
- soybean cultivarsGlycine maxt0
- Treatment
- compactione0
- Outcome
- transpiration ratese0
- Direction
- reducede0
- Value
- up to 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Net photosynthesis, stomatal conductance, and transpiration rates were reduced up to 50% under compaction and were not influenced by cultivars”
t0“Physiological and agronomic response of soybean cultivars to soil compaction in the Brazilian Cerrado”
Claim · model-written summary
The three gas-exchange traits were not influenced by cultivar.
- Taxon
- soybean cultivarsGlycine maxt0
- Outcome
- Net photosynthesis, stomatal conductance, and transpiration ratese0
- Direction
- not influencede0
- Comparator
- cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Net photosynthesis, stomatal conductance, and transpiration rates were reduced up to 50% under compaction and were not influenced by cultivars”
t0“Physiological and agronomic response of soybean cultivars to soil compaction in the Brazilian Cerrado”
Claim · model-written summary
Lower-maturity soybean cultivars had lower plant height, shoot and root dry mass, pod number, and grain yield under compaction.
- Taxon
- soybean cultivarsGlycine maxe0
- Material
- lower maturity groupse0
- Treatment
- soil compactione0
- Outcome
- plant height, shoot and root dry masse0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil compaction negatively affected the performance of soybean cultivars with lower maturity groups reflecting in lower plant height, shoot and root dry mass, number of pods and grain yield”
Claim · model-written summary
Lower-maturity soybean cultivars had fewer pods under compaction.
- Taxon
- soybean cultivarsGlycine maxe0
- Material
- lower maturity groupse0
- Treatment
- soil compactione0
- Outcome
- number of podse0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil compaction negatively affected the performance of soybean cultivars with lower maturity groups reflecting in lower plant height, shoot and root dry mass, number of pods and grain yield”
Claim · model-written summary
Lower-maturity soybean cultivars had lower grain yield under compaction.
- Taxon
- soybean cultivarsGlycine maxe0
- Material
- lower maturity groupse0
- Treatment
- soil compactione0
- Outcome
- grain yielde0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil compaction negatively affected the performance of soybean cultivars with lower maturity groups reflecting in lower plant height, shoot and root dry mass, number of pods and grain yield”
Claim · model-written summary
The authors suggest choosing longer-cycle soybean cultivars to reduce compaction damage.
- Taxon
- soybean cultivarsGlycine maxe0
- Outcome
- choice of soybean cultivars with a longer cyclee0
- Qualifier
- minimize the adverse effects of soil compactione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The choice of soybean cultivars with a longer cycle can be an alternative to minimize the adverse effects of soil compaction”
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