Abstract
Abstract The effect of five rock phosphates with different solubility (from Algeria, North Florida, North Carolina, Senegal, and Morocco) and that of single superphosphate (SSP) alone or with lime was investigated on the root colonization of red clover with indigenous arbuscular mycorrhizal fungi (AMF). In a pot experiment, the phosphorus (P) sources were applied at four rates (0, 100, 400, and 1600 mg total P2O5 kg−1 dry soil) to an acidic sandy soil (Nyírlugos) and to an acidic clay loam soil (Ragály). The arbuscule content of the roots was more sensitive to various rock phosphates than the infection frequency. No mycorrhizal colonization of roots was observed in the Nyírlugos soil at the 1600 mg P2O5 kg−1 level of SSP or in either soil at the 1600 mg P2O5 kg−1 level of SSP+lime, indicating that the mycorrhizal dependency of the host was eliminated by the highest soluble P concentrations in the soil. Keywords: Arbuscular mycorrhizal fungiinfectivityphosphorusrock phosphates Acknowledgment This study was financially supported by the Hungarian National Scientific Research Fund (OTKA) under Grant Nos. F042543 and T038046.
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Claims 3
Claim · model-written summary
Red clover root arbuscule content was more sensitive to rock phosphates than infection frequency.
- Taxon
- Trifolium pratenseL.
Trifolium pratenset0 - Treatment
- various rock phosphatese0
- Outcome
- arbuscule contente0
- Direction
- more sensitivee0
- Comparator
- infection frequencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The arbuscule content of the roots was more sensitive to various rock phosphates than the infection frequency.”
t0“Trifolium pratenseL.”
Claim · model-written summary
No red clover root mycorrhizal colonization occurred at 1600 mg P2O5 kg−1 SSP in Nyírlugos soil.
- Taxon
- Trifolium pratenseL.Trifolium pratenset0
- Treatment
- 1600 mg P2O5 kg−1 level of SSPe0
- Interactor
- arbuscular mycorrhizal fungi (AMF)e1symbiont
- Outcome
- No mycorrhizal colonization of rootse0
- Setting
- Nyírlugos soile0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No mycorrhizal colonization of roots was observed in the Nyírlugos soil at the 1600 mg P2O5 kg−1 level of SSP”
t0“Trifolium pratenseL.”
e1“root colonization of red clover with indigenous arbuscular mycorrhizal fungi (AMF)”
Claim · model-written summary
No red clover root mycorrhizal colonization occurred at 1600 mg P2O5 kg−1 SSP plus lime in either soil.
- Taxon
- Trifolium pratenseL.Trifolium pratenset0
- Treatment
- 1600 mg P2O5 kg−1 level of SSP+limee0
- Interactor
- arbuscular mycorrhizal fungi (AMF)e1symbiont
- Outcome
- No mycorrhizal colonization of rootse0
- Setting
- either soile0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No mycorrhizal colonization of roots was observed in the Nyírlugos soil at the 1600 mg P2O5 kg−1 level of SSP or in either soil at the 1600 mg P2O5 kg−1 level of SSP+lime”
t0“Trifolium pratenseL.”
e1“root colonization of red clover with indigenous arbuscular mycorrhizal fungi (AMF)”
The same questions in other papers
phosphorus · disease · Trifolium pratense (red clover)Positive and negative results
2 in the opposite direction
- 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.