Abstract
Effect of potassium nutrition on the content and the spectrum of soluble amino compounds in Red Clover 1. A better K nutrition of Red Clover ( Trifolium pratense ) resulted in higher contents of soluble amino acids of the upper plant parts. The plants of the treatment with the highest K application showed nearly double as high contents of glutamic acid, aspartic acid, alanine and γ‐aminobutyric acid than the plants of the K 0 treatment. The content of asparagine was not as much affected by the K nutrition and the content of glutamine was even lowered. 2. Red Clover responded on the K treatment with its content of soluble amino compounds quite different than non leguminous plant species which show decreasing contents of soluble amino acids with an increasing K nutrition. Therefore it is concluded, that the K nutrition of legumes affects the N 2 ‐fixation of Rhizobium leguminosarum . 3. The higher contents of soluble amino compounds did not influence the protein content of the upper plant parts. But with the better K supply the yields were increased considerably and therefore also higher yields of proteins were harvested. Very low K supply resulted in a high protein content, due to an inhibition of plant growth.
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Claims 11
Claim · model-written summary
Better potassium nutrition increased soluble amino acid content in upper red clover parts.
- Taxon
- Red Clover
Trifolium pratensee0 - Organ / stage
- upper plant partse0
- Treatment
- better K nutritione0
- Outcome
- contents of soluble amino acidse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A better K nutrition of Red Clover ( Trifolium pratense ) resulted in higher contents of soluble amino acids of the upper plant parts”
Claim · model-written summary
The highest potassium application nearly doubled glutamic acid, aspartic acid, alanine and γ-aminobutyric acid contents relative to K 0.
- Taxon
- Red CloverTrifolium pratensee1
- Treatment
- highest K applicatione0
- Outcome
- contents of glutamic acid, aspartic acid, alanine and γ‐aminobutyric acide0
- Direction
- nearly double as highe0
- Comparator
- K 0 treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plants of the treatment with the highest K application showed nearly double as high contents of glutamic acid, aspartic acid, alanine and γ‐aminobutyric acid than the plants of the K 0 treatment”
e1“Red Clover ( Trifolium pratense )”
Claim · model-written summary
Asparagine content was less affected by potassium nutrition.
- Taxon
- Red CloverTrifolium pratensee1
- Treatment
- K nutritione0
- Outcome
- content of asparaginee0
- Direction
- not as much affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of asparagine was not as much affected by the K nutrition”
e1“Red Clover ( Trifolium pratense )”
Claim · model-written summary
Glutamine content decreased with potassium nutrition.
- Taxon
- Red CloverTrifolium pratensee1
- Treatment
- K nutritione1
- Outcome
- content of glutaminee0
- Direction
- lowerede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the content of glutamine was even lowered”
e1“K nutrition of Red Clover”
Claim · model-written summary
Potassium response of soluble amino compounds differed from nonleguminous plants.
- Taxon
- Red CloverTrifolium pratensee0
- Treatment
- K treatmente0
- Outcome
- content of soluble amino compoundse0
- Comparator
- non leguminous plant speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Red Clover responded on the K treatment with its content of soluble amino compounds quite different than non leguminous plant species”
Claim · model-written summary
The authors infer that potassium nutrition affects nitrogen fixation by Rhizobium leguminosarum.
- Taxon
- Red CloverTrifolium pratensee1
- Treatment
- K nutritione0
- Interactor
- Rhizobium leguminosarum
Rhizobium leguminosarume0symbiont - Outcome
- N 2 ‐fixatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K nutrition of legumes affects the N 2 ‐fixation of Rhizobium leguminosarum”
e1“Red Clover ( Trifolium pratense )”
Claim · model-written summary
Higher soluble amino compound content did not affect protein content of upper plant parts.
- Taxon
- Red CloverTrifolium pratensee1
- Organ / stage
- upper plant partse0
- Outcome
- protein contente0
- Direction
- did not influencee0
- Qualifier
- higher contents of soluble amino compoundse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The higher contents of soluble amino compounds did not influence the protein content of the upper plant parts”
e1“Red Clover ( Trifolium pratense )”
Claim · model-written summary
Better potassium supply increased red clover yield considerably.
- Taxon
- Red CloverTrifolium pratensee1
- Treatment
- better K supplye0
- Outcome
- yieldse0
- Direction
- increased considerablye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the better K supply the yields were increased considerably”
e1“Red Clover ( Trifolium pratense )”
Claim · model-written summary
Better potassium supply increased harvested protein yield.
- Taxon
- Red CloverTrifolium pratensee1
- Treatment
- better K supplye0
- Outcome
- yields of proteinse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the better K supply the yields were increased considerably and therefore also higher yields of proteins were harvested”
e1“Red Clover ( Trifolium pratense )”
Claim · model-written summary
Very low potassium supply produced high protein content.
- Taxon
- Red CloverTrifolium pratensee1
- Treatment
- Very low K supplye0
- Outcome
- protein contente0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Very low K supply resulted in a high protein content, due to an inhibition of plant growth”
e1“Red Clover ( Trifolium pratense )”
Claim · model-written summary
Very low potassium supply inhibited plant growth.
- Taxon
- Red CloverTrifolium pratensee1
- Treatment
- Very low K supplye0
- Outcome
- plant growthe0
- Direction
- inhibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Very low K supply resulted in a high protein content, due to an inhibition of plant growth”
e1“Red Clover ( Trifolium pratense )”
The same questions in other papers
potassium · yield · Trifolium pratense (red clover)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
4 papers more in this group
See all 8 papers →potassium · molecular: metabolites · Trifolium pratense (red clover)Results agree
1 paper in the same direction as this paper
- positive
potassium · growth · Trifolium pratense (red clover)Results agree
2 papers in the same direction as this paper
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
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.