Abstract
The shading of maize and self-shading are the key factors affecting the stem lignin biosynthesis and lodging resistance of soybean at middle and later growth stages in the strip intercropping system. A study was designed to explore the regulation mechanism of lignin metabolism and different planting densities; PD1, PD2, and PD3 were used having a total number of 17 plants m−2, 20 plants m−2, and 25 plants m−2, respectively, on the lodging resistance of strip intercropped soybean stem. Our results depicted that the lower planting density (PD1) appropriately promoted the leaf photosynthesis activities (Pn), increase the activity of lignin-related enzymes and the accumulation of carbohydrates in stems, and eventually enhanced the lodging resistance of the strip intercropped soybean stem. Correlation analysis also showed that the lodging resistance index of soybean stem was significantly correlated with the available light for soybean canopy and Pn strip intercropped soybean stem characteristics and activities of enzymes related to lignin synthesis among the different planting densities. The findings of our research will be useful in future studies to understand the relationship between different light environment, planting densities, and lodging resistance of intercropped soybean and also guide the optimum planting density in maize–soybean intercropping system.
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Claims 4
Claim · model-written summary
The lower planting density (PD1) promoted leaf photosynthesis activity (Pn) in strip intercropped soybean.
- Taxon
- soybean
Glycine maxe1 - Treatment
- lower planting density (PD1)e1
- Outcome
- leaf photosynthesis activities (Pn)e1
- Direction
- promotede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Our results depicted that the lower planting density (PD1) appropriately promoted the leaf photosynthesis activities (Pn), increase the activity of lignin-related enzymes and the accumulation of carbohydrates in stems, and eventually enhanced the lodging resistance of the strip intercropped soybean stem”
Claim · model-written summary
The lower planting density (PD1) increased lignin-related enzyme activity and carbohydrate accumulation in soybean stems.
- Taxon
- soybeanGlycine maxe1
- Organ / stage
- stemse1
- Treatment
- lower planting density (PD1)e1
- Outcome
- the activity of lignin-related enzymes and the accumulation of carbohydrates in stemse1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Our results depicted that the lower planting density (PD1) appropriately promoted the leaf photosynthesis activities (Pn), increase the activity of lignin-related enzymes and the accumulation of carbohydrates in stems, and eventually enhanced the lodging resistance of the strip intercropped soybean stem”
Claim · model-written summary
The lower planting density (PD1) enhanced the lodging resistance of strip intercropped soybean stems.
- Taxon
- soybeanGlycine maxe1
- Organ / stage
- steme1
- Treatment
- lower planting density (PD1)e1
- Outcome
- lodging resistancee1
- Direction
- enhancede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Our results depicted that the lower planting density (PD1) appropriately promoted the leaf photosynthesis activities (Pn), increase the activity of lignin-related enzymes and the accumulation of carbohydrates in stems, and eventually enhanced the lodging resistance of the strip intercropped soybean stem”
Claim · model-written summary
Lodging resistance index of soybean stems was significantly correlated with canopy light, Pn, and lignin-synthesis enzyme activities among the planting densities.
- Taxon
- soybeanGlycine maxe2
- Organ / stage
- steme2
- Outcome
- lodging resistance index of soybean steme2
- Qualifier
- among the different planting densitiese2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Correlation analysis also showed that the lodging resistance index of soybean stem was significantly correlated with the available light for soybean canopy and Pn strip intercropped soybean stem characteristics and activities of enzymes related to lignin synthesis among the different planting densities”
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