Abstract
Background: The recovery growth of soybean after environmental stress, especially shade stress, is essential for soybean to alleviate the yield loss caused by shade. Although the mechanism of recovery growth on leaves has been intensely researched, little is known about the mechanism of compensatory growth on soybean nodule formation. Methods: This study aimed to investigate the effect of recovery growth after shade on soybean nodule formation and the distribution of carbohydrates in root nodules. Four shade treatments, including vegetative period shade (VS), reproductive period shade (RS), total growth period shade (TS) and no shade as control (CK), were applied on monoculture soybean by using a black mesh shading net with light transmittance of 50%. Result: The aboveground dry weight, nodule number and weight and grains yield were lowest in TS and those values in VS were higher than in RS. Compared with RS, VS increased the nodule weight by 75.6% and the sucrose and starch content by 19.3% and 15.6%, respectively. We suggested that, compared with RS, VS improved the compensation growth of soybean and promoted the carbohydrate distribution into nodules, ultimately reducing the negative effect on soybean nodule formation and yield production.
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Claims 10
Claim · model-written summary
Total growth period shade gave the lowest aboveground dry weight.
- Taxon
- soybean
Glycine maxe0 - Treatment
- total growth period shadee2
- Outcome
- aboveground dry weighte1
- Direction
- loweste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“recovery growth of soybean after environmental stress”
e1“The aboveground dry weight, nodule number and weight and grains yield were lowest in TS”
e2“total growth period shade (TS)”
Claim · model-written summary
Total growth period shade gave the lowest nodule number and weight.
- Taxon
- soybeanGlycine maxe0
- Treatment
- total growth period shadee2
- Outcome
- nodule number and weighte1
- Direction
- loweste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“recovery growth of soybean after environmental stress”
e1“The aboveground dry weight, nodule number and weight and grains yield were lowest in TS”
e2“total growth period shade (TS)”
Claim · model-written summary
Total growth period shade gave the lowest grain yield.
- Taxon
- soybeanGlycine maxe0
- Treatment
- total growth period shadee2
- Outcome
- grains yielde1
- Direction
- loweste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“recovery growth of soybean after environmental stress”
e1“The aboveground dry weight, nodule number and weight and grains yield were lowest in TS”
e2“total growth period shade (TS)”
Claim · model-written summary
Vegetative period shade yielded higher aboveground dry weight, nodule number and weight than reproductive period shade.
- Taxon
- soybeanGlycine maxe0
- Treatment
- vegetative period shadee2
- Outcome
- aboveground dry weight, nodule number and weighte1
- Direction
- highere1
- Comparator
- reproductive period shadee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“recovery growth of soybean after environmental stress”
e1“The aboveground dry weight, nodule number and weight and grains yield were lowest in TS and those values in VS were higher than in RS.”
e2“vegetative period shade (VS), reproductive period shade (RS)”
Claim · model-written summary
Vegetative period shade yielded higher grain yield than reproductive period shade.
- Taxon
- soybeanGlycine maxe0
- Treatment
- vegetative period shadee2
- Outcome
- grains yielde1
- Direction
- highere1
- Comparator
- reproductive period shadee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“recovery growth of soybean after environmental stress”
e1“The aboveground dry weight, nodule number and weight and grains yield were lowest in TS and those values in VS were higher than in RS.”
e2“vegetative period shade (VS), reproductive period shade (RS)”
Claim · model-written summary
Vegetative shade increased nodule weight by 75.6% compared with reproductive shade.
- Taxon
- soybeanGlycine maxe0
- Treatment
- vegetative period shadee2
- Outcome
- nodule weighte1
- Direction
- increasede1
- Value
- 75.6%e1
- Comparator
- reproductive period shadee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“recovery growth of soybean after environmental stress”
e1“Compared with RS, VS increased the nodule weight by 75.6%”
e2“vegetative period shade (VS), reproductive period shade (RS)”
Claim · model-written summary
Vegetative shade increased nodule sucrose content by 19.3% compared with reproductive shade.
- Taxon
- soybeanGlycine maxe0
- Treatment
- vegetative period shadee2
- Outcome
- sucrosee1
- Direction
- increasede1
- Value
- 19.3%e1
- Comparator
- reproductive period shadee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“recovery growth of soybean after environmental stress”
e1“Compared with RS, VS increased the nodule weight by 75.6% and the sucrose and starch content by 19.3% and 15.6%, respectively.”
e2“vegetative period shade (VS), reproductive period shade (RS)”
Claim · model-written summary
Vegetative shade increased nodule starch content by 15.6% compared with reproductive shade.
- Taxon
- soybeanGlycine maxe0
- Treatment
- vegetative period shadee2
- Outcome
- starch contente1
- Direction
- increasede1
- Value
- 15.6%e1
- Comparator
- reproductive period shadee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“recovery growth of soybean after environmental stress”
e1“Compared with RS, VS increased the nodule weight by 75.6% and the sucrose and starch content by 19.3% and 15.6%, respectively.”
e2“vegetative period shade (VS), reproductive period shade (RS)”
Claim · model-written summary
Authors suggested vegetative shade improved compensatory growth relative to reproductive shade.
- Taxon
- soybeanGlycine maxe0
- Treatment
- VSe1
- Outcome
- compensation growth of soybeane1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“recovery growth of soybean after environmental stress”
e1“compared with RS, VS improved the compensation growth of soybean and promoted the carbohydrate distribution into nodules, ultimately reducing the negative effect on soybean nodule formation and yield production.”
Claim · model-written summary
Authors suggested vegetative shade promoted carbohydrate distribution into nodules, reducing adverse effects on nodules and yield.
- Taxon
- soybeanGlycine maxe0
- Treatment
- VSe1
- Outcome
- negative effect on soybean nodule formation and yield productione1
- Qualifier
- carbohydrate distribution into nodulese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“recovery growth of soybean after environmental stress”
e1“VS improved the compensation growth of soybean and promoted the carbohydrate distribution into nodules, ultimately reducing the negative effect on soybean nodule formation and yield production.”
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