Abstract
Abstract The elemental distribution between the leaves and roots of mature radish (Raphanus sativus cv Cherry Belle) plants grown in the greenhouse with various concentrations of nutrient solution B or Ca was determined to assess the role of phloem in the provision of nutrients to the root, and the retranslocation of B under deficient conditions. The relative composition and accumulation of elements in different parts, and the ratio of their concentrations in leaves:roots were used as a measure of their uptake, relative mobility and retranslocation. The data indicate that B, but not Ca is retranslocated in the phloem to the roots when that particular element was in short supply in the nutrient solution. B deficiency induced brown heart disorder in radish roots but the severity was dependent on the degree of deficiency below 28 μg g‐l DM in the root. These symptoms were alleviated when the root B concentrations were enhanced by foliar applications of B. It is concluded that radish responded to B deficiency in a fashion similar to that reported previously for rutabaga and that it might serve as a time‐saving model system for examining the mechanisms responsible for brown heart in rutabaga.
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Claims 5
Claim · model-written summary
Boron, but not calcium, was retranslocated through phloem to radish roots when scarce.
- Taxon
- radish
Raphanus sativuse1 - Organ / stage
- rootse0
- Outcome
- B, but not Ca is retranslocated in the phloem to the rootse0
- Qualifier
- short supply in the nutrient solutione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B, but not Ca is retranslocated in the phloem to the roots when that particular element was in short supply in the nutrient solution”
e1“radish (Raphanus sativus cv Cherry Belle)”
Claim · model-written summary
Boron deficiency induced brown heart in radish roots.
- Taxon
- radishRaphanus sativuse0
- Organ / stage
- rootse0
- Treatment
- B deficiencye0
- Outcome
- brown heart disordere0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B deficiency induced brown heart disorder in radish roots”
Claim · model-written summary
Brown heart severity depended on deficiency below 28 μg g‐l DM in radish roots.
- Taxon
- radishRaphanus sativuse1
- Organ / stage
- roote0
- Treatment
- degree of deficiencye0
- Outcome
- severitye0
- Value
- 28 μg g‐l DMe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the severity was dependent on the degree of deficiency below 28 μg g‐l DM in the root”
e1“B deficiency induced brown heart disorder in radish roots”
Claim · model-written summary
Foliar boron application alleviated brown heart symptoms as root boron concentration increased.
- Taxon
- radishRaphanus sativuse1
- Organ / stage
- roote0
- Treatment
- foliar applications of Be0
- Outcome
- symptomse0
- Direction
- alleviatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These symptoms were alleviated when the root B concentrations were enhanced by foliar applications of B”
e1“radish roots”
Claim · model-written summary
The authors propose radish as a time-saving model for studying brown heart mechanisms in rutabaga.
- Taxon
- radishRaphanus sativuse0
- Outcome
- might serve as a time‐saving model system for examining the mechanisms responsible for brown heart in rutabagae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“radish responded to B deficiency in a fashion similar to that reported previously for rutabaga and that it might serve as a time‐saving model system for examining the mechanisms responsible for brown heart in rutabaga”
The same questions in other papers
application · disease · Raphanus sativus (radish)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
1 paper more in this group
See all 5 papers →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.