Abstract
Abstract Twelve ( Sorghum bicolor L. Moench) genotypes were grown on acid‐Bladen soil (pH 4.3, P stressed or Al toxic), on limed‐Bladen soil (pH 5.2, Cu stressed), and on alkaline Quinlan soil (pH 7.5, Fe stressed) to determine the effect of P efficiency on use of these clements by the plants. Under P‐stress or Al‐toxicity conditions, the most P‐efficient sorghum genotypes absorbed more 32P than the most P‐inefficient lines and grew normally, while the P‐inefficient plants developed P‐deficiency symptoms. Under Fe‐stress conditions, the most P‐efficient genotypes developed Fe chlorosis, while the most P‐inefficient plants remained green. Under Cu‐stress conditions, one of six genotypes developed severe Cu‐deficiency symptoms, characterized by the accumulation of higher P in the lower leaves, and by lower Fe and Ca in upper leaves of Cu‐stressed plants as compared with Cu‐sufficient plants. Thus, P efficiency in plants may be an asset when P availability limits growth, but it may be a liability when these same plants are subjected to Fe or Cu stress.
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Claims 6
Claim · model-written summary
Under P or Al stress, the most P-efficient sorghum genotypes absorbed more 32P than the most P-inefficient lines.
- Taxon
- Sorghum bicolor
Sorghum bicolore0 - Material
- most P‐efficient sorghum genotypese1
- Treatment
- P‐stress or Al‐toxicity conditionse1
- Outcome
- 32Pe1
- Direction
- moree1
- Comparator
- most P‐inefficient linese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum bicolor L. Moench”
e1“Under P‐stress or Al‐toxicity conditions, the most P‐efficient sorghum genotypes absorbed more 32P than the most P‐inefficient lines and grew normally, while the P‐inefficient plants developed P‐deficiency symptoms”
Claim · model-written summary
Under P or Al stress, the P-inefficient plants developed P-deficiency symptoms.
- Taxon
- Sorghum bicolorSorghum bicolore0
- Material
- P‐inefficient plantse1
- Treatment
- P‐stress or Al‐toxicity conditionse1
- Outcome
- P‐deficiency symptomse1
- Comparator
- most P‐efficient sorghum genotypese1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum bicolor L. Moench”
e1“Under P‐stress or Al‐toxicity conditions, the most P‐efficient sorghum genotypes absorbed more 32P than the most P‐inefficient lines and grew normally, while the P‐inefficient plants developed P‐deficiency symptoms”
Claim · model-written summary
Under Fe stress, the most P-efficient genotypes developed Fe chlorosis while the most P-inefficient plants remained green.
- Taxon
- Sorghum bicolorSorghum bicolore0
- Material
- most P‐efficient genotypese2
- Treatment
- Fe‐stress conditionse2
- Outcome
- Fe chlorosise2
- Comparator
- most P‐inefficient plantse2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum bicolor L. Moench”
e2“Under Fe‐stress conditions, the most P‐efficient genotypes developed Fe chlorosis, while the most P‐inefficient plants remained green”
Claim · model-written summary
Under Cu stress, one of six genotypes developed severe Cu-deficiency symptoms.
- Taxon
- Sorghum bicolorSorghum bicolore0
- Material
- one of six genotypese3
- Treatment
- Cu‐stress conditionse3
- Outcome
- severe Cu‐deficiency symptomse3
- Comparator
- Cu‐sufficient plantse3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum bicolor L. Moench”
e3“Under Cu‐stress conditions, one of six genotypes developed severe Cu‐deficiency symptoms, characterized by the accumulation of higher P in the lower leaves, and by lower Fe and Ca in upper leaves of Cu‐stressed plants as compared with Cu‐sufficient plants”
Claim · model-written summary
Under Cu stress, plants accumulated higher P in the lower leaves than Cu-sufficient plants.
- Taxon
- Sorghum bicolorSorghum bicolore0
- Treatment
- Cu‐stress conditionse3
- Outcome
- P in the lower leavese3
- Direction
- highere3
- Comparator
- Cu‐sufficient plantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum bicolor L. Moench”
e3“Under Cu‐stress conditions, one of six genotypes developed severe Cu‐deficiency symptoms, characterized by the accumulation of higher P in the lower leaves, and by lower Fe and Ca in upper leaves of Cu‐stressed plants as compared with Cu‐sufficient plants”
Claim · model-written summary
Under Cu stress, plants had lower Fe and Ca in upper leaves than Cu-sufficient plants.
- Taxon
- Sorghum bicolorSorghum bicolore0
- Treatment
- Cu‐stress conditionse3
- Outcome
- Fe and Ca in upper leavese3
- Direction
- lowere3
- Comparator
- Cu‐sufficient plantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum bicolor L. Moench”
e3“Under Cu‐stress conditions, one of six genotypes developed severe Cu‐deficiency symptoms, characterized by the accumulation of higher P in the lower leaves, and by lower Fe and Ca in upper leaves of Cu‐stressed plants as compared with Cu‐sufficient plants”
The same questions in other papers
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- positive
- positive
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1 paper more in this group
See all 5 papers →copper atom · disease · Sorghum bicolor (sorghum)Results agree
1 paper in the same direction as this paper
- negative
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.