Abstract
Abstract Functions of sodium (Na + ) and potassium (K + ) are closely associated. In some crops, Na + is able to prevent or reduce considerably the occurrence of K + deficiency. Sugar beet ( Beta vulgaris L.) is a natrophilic crop, and positive effects of Na + applications on yield were observed when K + was sufficiently supplied. However, it is not known which specific function of K + can limit the growth of sugar beet when K + is substituted by an equivalent amount of Na + . Therefore, K + substitution by Na + was investigated for sugar beet in hydroponics. Surprisingly, no K + ‐deficiency symptoms were observed. However, calcium (Ca 2+ ) concentrations in the leaves were significantly decreased. Moreover, Ca 2+ uptake and translocation through xylem sap were reduced in Na + ‐treated plants. It is concluded that Ca 2+ uptake by roots and its translocation via xylem sap primarily limit the possibility of K + substitution by Na + in sugar beet nutrition.
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Claims 5
Claim · model-written summary
Sodium substitution for potassium produced no potassium deficiency symptoms.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarist0 - Treatment
- substitution of potassium by sodiumt0
- Outcome
- K + ‐deficiency symptomse0
- Direction
- noe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Surprisingly, no K + ‐deficiency symptoms were observed.”
t0“Sodium‐induced calcium deficiency in sugar beet during substitution of potassium by sodium”
Claim · model-written summary
Leaf calcium concentrations decreased significantly under sodium substitution.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Organ / stage
- leavese0
- Treatment
- substitution of potassium by sodiumt0
- Outcome
- calcium (Ca 2+ ) concentrationse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, calcium (Ca 2+ ) concentrations in the leaves were significantly decreased.”
t0“Sodium‐induced calcium deficiency in sugar beet during substitution of potassium by sodium”
Claim · model-written summary
Sodium treatment reduced calcium uptake.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- Na + ‐treatede0
- Outcome
- Ca 2+ uptakee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Moreover, Ca 2+ uptake and translocation through xylem sap were reduced in Na + ‐treated plants.”
t0“Sodium‐induced calcium deficiency in sugar beet during substitution of potassium by sodium”
Claim · model-written summary
Sodium treatment reduced calcium translocation through xylem sap.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- Na + ‐treatede0
- Outcome
- translocation through xylem sape0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Moreover, Ca 2+ uptake and translocation through xylem sap were reduced in Na + ‐treated plants.”
t0“Sodium‐induced calcium deficiency in sugar beet during substitution of potassium by sodium”
Claim · model-written summary
The authors concluded that calcium uptake and xylem translocation limit potassium substitution by sodium.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Outcome
- possibility of K + substitution by Na +e0
- Qualifier
- Ca 2+ uptake by roots and its translocation via xylem sape0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ca 2+ uptake by roots and its translocation via xylem sap primarily limit the possibility of K + substitution by Na + in sugar beet nutrition.”
The same questions in other papers
sodium atom · nutrient: content · Beta vulgaris (beet)Results agree
1 paper in the same direction as this paper
- no effect
potassium · nutrient: content · Beta vulgaris (beet)Positive and negative results
1 paper in the same direction as this paper · 15 in the opposite direction
- positive
- positive
- positive
13 papers more in this group
See all 17 papers →potassium · disease · Beta vulgaris (beet)Results agree
1 paper in the same direction as this paper
- no effect
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.