Abstract
Abstract A histological method and elemental analysis were applied to study the reaction of soybean (Glycine max (L.) Merr.), cultivar ‘Maple Arrow’, to high manganese (Mn) supply under various growth conditions. The main impact of Mn toxicity was seen on the above ground parts of the plant. The brown fleckes on the old leaves and young apical crinkle leaf with chlorotic spots was identified as typical Mn toxicity symptoms. The chloroplasts of the Mn‐toxic plant cultivated in the growth chamber accumulated large starch granules, which on the contrary represented an intensive growth of the plants grown in the greenhouse. Leaf Mn content of 2.80 mg/g did not decrease the dry weight of the older leaves, but 1.53 mg/g depressed severely that of the young leaves. The dry weight of pods was also significantly decreased.
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Claims 6
Claim · model-written summary
High manganese supply produced typical Mn toxicity symptoms: brown flecks on old leaves and chlorotic spots on young leaves.
- Taxon
- soybean
Glycine maxe0 - Material
- Maple Arrowe0
- Organ / stage
- old leavese2
- Treatment
- high manganese (Mn) supplye0
- Outcome
- Mn toxicity symptomse2
- Qualifier
- brown fleckese2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean (Glycine max (L.) Merr.), cultivar ‘Maple Arrow’, to high manganese (Mn) supply under various growth conditions”
e2“The brown fleckes on the old leaves and young apical crinkle leaf with chlorotic spots was identified as typical Mn toxicity symptoms”
Claim · model-written summary
The main impact of Mn toxicity was on the above-ground parts of soybean.
- Taxon
- soybeanGlycine maxe0
- Treatment
- high manganese (Mn) supplye0
- Outcome
- above ground partse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean (Glycine max (L.) Merr.), cultivar ‘Maple Arrow’, to high manganese (Mn) supply under various growth conditions”
e1“The main impact of Mn toxicity was seen on the above ground parts of the plant”
Claim · model-written summary
Mn-toxic soybean plants grown in the growth chamber accumulated large starch granules in their chloroplasts.
- Taxon
- soybeanGlycine maxe0
- Treatment
- high manganese (Mn) supplye0
- Outcome
- starch granulese3
- Direction
- accumulatede3
- Setting
- growth chambere4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean (Glycine max (L.) Merr.), cultivar ‘Maple Arrow’, to high manganese (Mn) supply under various growth conditions”
e3“accumulated large starch granules”
e4“cultivated in the growth chamber”
Claim · model-written summary
Leaf Mn content of 2.80 mg/g did not decrease the dry weight of the older soybean leaves.
- Taxon
- soybeanGlycine maxe0
- Material
- Maple Arrowe0
- Organ / stage
- older leavese5
- Compound
- Mne5
- Outcome
- dry weighte5
- Direction
- did not decreasee5
- Qualifier
- 2.80 mg/ge5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean (Glycine max (L.) Merr.), cultivar ‘Maple Arrow’, to high manganese (Mn) supply under various growth conditions”
e5“Leaf Mn content of 2.80 mg/g did not decrease the dry weight of the older leaves”
Claim · model-written summary
Leaf Mn content of 1.53 mg/g depressed the dry weight of young soybean leaves severely.
- Taxon
- soybeanGlycine maxe0
- Material
- Maple Arrowe0
- Organ / stage
- young leavese6
- Compound
- Mne5
- Outcome
- dry weighte5
- Direction
- depressed severelye6
- Qualifier
- 1.53 mg/ge6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean (Glycine max (L.) Merr.), cultivar ‘Maple Arrow’, to high manganese (Mn) supply under various growth conditions”
e5“Leaf Mn content of 2.80 mg/g did not decrease the dry weight of the older leaves”
e6“but 1.53 mg/g depressed severely that of the young leaves”
Claim · model-written summary
High manganese supply significantly decreased the dry weight of soybean pods.
- Taxon
- soybeanGlycine maxe0
- Organ / stage
- podse7
- Treatment
- high manganese (Mn) supplye0
- Outcome
- dry weight of podse7
- Direction
- significantly decreasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean (Glycine max (L.) Merr.), cultivar ‘Maple Arrow’, to high manganese (Mn) supply under various growth conditions”
e7“The dry weight of pods was also significantly decreased”
The same questions in other papers
manganese atom · growth · Glycine max (soybean)Results differ
17 papers in the same direction as this paper · 13 in the opposite direction
- positive
- positive
- positive
27 papers more in this group
See all 31 papers →manganese atom · crop injury · Glycine max (soybean)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- negative
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.