Abstract
Plants and solution properties affecting the absorption of double-labeled 86 Rb 33 P-phosphate, pH 7.2, by chrysanthemum leaves were studied. Leaf age did not affect absorption greatly. Optimum concentration for maximum total absorption and efficiency of absorption of both Rb and P without leaf burn was 20-30 mM Rb phosphate. Urea and several structurally related compounds (acetamide, propionamide and Rb acetate) decreased Rb and P absorption due to formation of salt deposits. Of 18 commercially available surfactants tested at 0.1%, only one significantly increased P absorption and all significantly decreased Rb absorption; many were phytotoxic. Of a variety of 20 different herbaceous ornamental and woody landscape species tested for their efficiency of absorption, P absorption ranged from 0.2-39% and Rb absorption ranged from 0.2-42%; surfactants generally increased the absorption of P and Rb for those species with waxy, pubescent or otherwise hard-to-wet leaves.
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Claims 12
Claim · model-written summary
Leaf age did not greatly affect nutrient absorption by chrysanthemum leaves.
- Taxon
- chrysanthemum
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Chrysanthemume1 - Organ / stage
- Leafe0
- Outcome
- absorptione0
- Direction
- did not affecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpeg?width=500)
Verbatim
e0“Leaf age did not affect absorption greatly”
e1“by chrysanthemum leaves were studied”
Claim · model-written summary
The optimum Rb phosphate concentration for total Rb and P absorption and efficiency without leaf burn was 20-30 mM.
- Taxon
- chrysanthemumChrysanthemume1
- Treatment
- 20-30 mM Rb phosphatee0
- Outcome
- total absorption and efficiency of absorption of both Rb and Pe0
- Direction
- maximume0
- Value
- 20-30 mMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Optimum concentration for maximum total absorption and efficiency of absorption of both Rb and P without leaf burn was 20-30 mM Rb phosphate”
e1“by chrysanthemum leaves were studied”
Claim · model-written summary
Urea reduced foliar Rb and P absorption through salt deposits.
- Taxon
- chrysanthemumChrysanthemume1
- Treatment
- Ureae0
- Outcome
- Rb and P absorptione0
- Direction
- decreasede0
- Qualifier
- formation of salt depositse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Urea and several structurally related compounds (acetamide, propionamide and Rb acetate) decreased Rb and P absorption due to formation of salt deposits”
e1“by chrysanthemum leaves were studied”
Claim · model-written summary
Acetamide reduced foliar Rb and P absorption through salt deposits.
- Taxon
- chrysanthemumChrysanthemume1
- Treatment
- acetamidee0
- Outcome
- Rb and P absorptione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Urea and several structurally related compounds (acetamide, propionamide and Rb acetate) decreased Rb and P absorption due to formation of salt deposits”
e1“by chrysanthemum leaves were studied”
Claim · model-written summary
Propionamide reduced foliar Rb and P absorption.
- Taxon
- chrysanthemumChrysanthemume1
- Treatment
- propionamidee0
- Outcome
- Rb and P absorptione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Urea and several structurally related compounds (acetamide, propionamide and Rb acetate) decreased Rb and P absorption due to formation of salt deposits”
e1“by chrysanthemum leaves were studied”
Claim · model-written summary
Rb acetate reduced foliar Rb and P absorption.
- Taxon
- chrysanthemumChrysanthemume1
- Treatment
- Rb acetatee0
- Outcome
- Rb and P absorptione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Urea and several structurally related compounds (acetamide, propionamide and Rb acetate) decreased Rb and P absorption due to formation of salt deposits”
e1“by chrysanthemum leaves were studied”
Claim · model-written summary
Only one of 18 surfactants significantly increased P absorption in chrysanthemum.
- Taxon
- chrysanthemumChrysanthemume1
- Treatment
- surfactants tested at 0.1%e0
- Outcome
- P absorptione0
- Direction
- increasede0
- Value
- onee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of 18 commercially available surfactants tested at 0.1%, only one significantly increased P absorption”
e1“by chrysanthemum leaves were studied”
Claim · model-written summary
All tested surfactants significantly decreased Rb absorption in chrysanthemum.
- Taxon
- chrysanthemumChrysanthemume2
- Treatment
- surfactants tested at 0.1%e1
- Outcome
- Rb absorptione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all significantly decreased Rb absorption”
e1“Of 18 commercially available surfactants tested at 0.1%”
e2“by chrysanthemum leaves were studied”
Claim · model-written summary
Many tested surfactants were phytotoxic.
- Taxon
- chrysanthemumChrysanthemume2
- Treatment
- surfactants tested at 0.1%e1
- Outcome
- phytotoxice0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“many were phytotoxic”
e1“Of 18 commercially available surfactants tested at 0.1%”
e2“by chrysanthemum leaves were studied”
Claim · model-written summary
Across 20 landscape and ornamental species, P absorption ranged from 0.2-39%.
Verbatim
e0“Of a variety of 20 different herbaceous ornamental and woody landscape species tested for their efficiency of absorption, P absorption ranged from 0.2-39%”
Claim · model-written summary
Across 20 landscape and ornamental species, Rb absorption ranged from 0.2-42%.
Verbatim
e0“Rb absorption ranged from 0.2-42%”
e1“herbaceous ornamental and woody landscape species”
Claim · model-written summary
Surfactants generally increased P and Rb absorption in species with hard-to-wet leaves.
- Taxon
- herbaceous ornamental and woody landscape speciese1
- Treatment
- surfactantse0
- Outcome
- absorption of P and Rbe0
- Direction
- increasede0
- Qualifier
- waxy, pubescent or otherwise hard-to-wet leavese0
Not reportedComparator
Verbatim
e0“surfactants generally increased the absorption of P and Rb for those species with waxy, pubescent or otherwise hard-to-wet leaves”
e1“herbaceous ornamental and woody landscape species”
The same questions in other papers
nitrogen · nutrient: content · ChrysanthemumPositive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
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.