Abstract
The influence of manganese nutrition on growth and yield of two soybean cultivars (Lee and Bragg) was studied in sand culture. Increasing the manganese concentration from 1.0¦M to 275¦M reduced vegetative growth and grain yield in both cultivars, the reduction being greater for Bragg than for Lee. The reduction in grain yield at high manganese levels resulted mainly from a reduced individual seed weight and a lower number of pods, with a slight reduction in the number of fertile nodes. There was no effect of high manganese supply on oil and protein levels or on the germination percentage of harvested seed. Manganese deficiency reduced vegetative growth, advanced flower initiation and pod formation, and decreased the grain yields of both cultivars. The reduced seed yield was mainly due to a reduction in the number of pods per plant and the individual seed weight. Manganese deficiency also reduced the concentration of oil in the seeds, but there was no effect on seed protein level or on the germination percentage cf harvested seed. Seed manganese concentration increased with the supply of the nutrient, but no difference in concentration was found between the two cultivars.
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Claims 17
Claim · model-written summary
High manganese reduced vegetative growth in both cultivars.
- Taxon
- soybean
Glycine maxt0 - Treatment
- Increasing the manganese concentration from 1.0¦M to 275¦Me0
- Outcome
- Increasing the manganese concentration from 1.0¦M to 275¦M reduced vegetative growth and grain yield in both cultivarse0
- Direction
- reducede0
- Comparator
- 1.0¦Me0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the manganese concentration from 1.0¦M to 275¦M reduced vegetative growth and grain yield in both cultivars”
t0“soybean cultivars”
Claim · model-written summary
High manganese reduced grain yield in both cultivars, more in Bragg.
- Taxon
- soybeanGlycine maxt1
- Treatment
- manganese supplyt0
- Outcome
- Increasing the manganese concentration from 1.0¦M to 275¦M reduced vegetative growth and grain yield in both cultivars, the reduction being greater for Bragg than for Leee0
- Direction
- reducede0
- Comparator
- Leee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the manganese concentration from 1.0¦M to 275¦M reduced vegetative growth and grain yield in both cultivars, the reduction being greater for Bragg than for Lee”
t0“manganese supply”
t1“soybean cultivars”
Claim · model-written summary
High manganese reduced individual seed weight.
- Taxon
- soybeanGlycine maxt0
- Treatment
- high manganese levelse0
- Outcome
- The reduction in grain yield at high manganese levels resulted mainly from a reduced individual seed weighte0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction in grain yield at high manganese levels resulted mainly from a reduced individual seed weight”
t0“soybean cultivars”
Claim · model-written summary
High manganese reduced pod number.
- Taxon
- soybeanGlycine maxt0
- Treatment
- manganese supplyt1
- Outcome
- a lower number of podse0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a lower number of pods”
t0“soybean cultivars”
t1“manganese supply”
Claim · model-written summary
High manganese slightly reduced fertile node number.
- Taxon
- soybeanGlycine maxt0
- Treatment
- manganese supplyt1
- Outcome
- a slight reduction in the number of fertile nodese0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a slight reduction in the number of fertile nodes”
t0“soybean cultivars”
t1“manganese supply”
Claim · model-written summary
High manganese did not affect seed oil or protein levels.
- Taxon
- soybeanGlycine maxt0
- Treatment
- high manganese supplye0
- Outcome
- There was no effect of high manganese supply on oil and protein levelse0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no effect of high manganese supply on oil and protein levels”
t0“soybean cultivars”
Claim · model-written summary
High manganese did not affect harvested seed germination.
- Taxon
- soybeanGlycine maxt0
- Treatment
- high manganese supplye0
- Outcome
- There was no effect of high manganese supply on oil and protein levels or on the germination percentage of harvested seede0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no effect of high manganese supply on oil and protein levels or on the germination percentage of harvested seed”
t0“soybean cultivars”
Claim · model-written summary
Manganese deficiency reduced vegetative growth.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Manganese deficiencye0
- Outcome
- Manganese deficiency reduced vegetative growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Manganese deficiency reduced vegetative growth”
t0“soybean cultivars”
Claim · model-written summary
Manganese deficiency advanced flower initiation and pod formation.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Manganese deficiencye0
- Outcome
- Manganese deficiency reduced vegetative growth, advanced flower initiation and pod formatione0
- Direction
- advancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Manganese deficiency reduced vegetative growth, advanced flower initiation and pod formation”
t0“soybean cultivars”
Claim · model-written summary
Manganese deficiency decreased grain yield in both cultivars.
- Taxon
- soybeanGlycine maxt1
- Treatment
- manganese supplyt0
- Outcome
- decreased the grain yields of both cultivarse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased the grain yields of both cultivars”
t0“manganese supply”
t1“soybean cultivars”
Claim · model-written summary
Manganese deficiency reduced pods per plant.
- Taxon
- soybeanGlycine maxt1
- Treatment
- manganese supplyt0
- Outcome
- The reduced seed yield was mainly due to a reduction in the number of pods per plante0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduced seed yield was mainly due to a reduction in the number of pods per plant”
t0“manganese supply”
t1“soybean cultivars”
Claim · model-written summary
Manganese deficiency reduced seed weight.
- Taxon
- soybeanGlycine maxt1
- Treatment
- manganese supplyt0
- Outcome
- a reduction in the number of pods per plant and the individual seed weighte0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a reduction in the number of pods per plant and the individual seed weight”
t0“manganese supply”
t1“soybean cultivars”
Claim · model-written summary
Manganese deficiency reduced seed oil concentration.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Manganese deficiencye0
- Outcome
- Manganese deficiency also reduced the concentration of oil in the seedse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Manganese deficiency also reduced the concentration of oil in the seeds”
t0“soybean cultivars”
Claim · model-written summary
Manganese deficiency did not affect seed protein.
- Taxon
- soybeanGlycine maxt1
- Treatment
- manganese supplyt0
- Outcome
- there was no effect on seed protein levele0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no effect on seed protein level”
t0“manganese supply”
t1“soybean cultivars”
Claim · model-written summary
Manganese deficiency did not affect harvested seed germination.
- Taxon
- soybeanGlycine maxt1
- Treatment
- manganese supplyt0
- Outcome
- there was no effect on seed protein level or on the germination percentage cf harvested seede0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no effect on seed protein level or on the germination percentage cf harvested seed”
t0“manganese supply”
t1“soybean cultivars”
Claim · model-written summary
Seed manganese concentration rose with manganese supply.
- Taxon
- soybeanGlycine maxt0
- Treatment
- supply of the nutriente0
- Outcome
- Seed manganese concentration increased with the supply of the nutriente0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed manganese concentration increased with the supply of the nutrient”
t0“soybean cultivars”
Claim · model-written summary
Seed manganese concentration did not differ between cultivars.
- Taxon
- soybeanGlycine maxt0
- Material
- two cultivarse0
- Outcome
- no difference in concentration was found between the two cultivarse0
- Direction
- no differencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no difference in concentration was found between the two cultivars”
t0“soybean cultivars”
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