Abstract
Abstract Acid soil and solution culture studies showed that ‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana. In greenhouse pots of Al‐toxic Bladen soil (pH 4.6 to 5.1) the top yields of Atlas 66 were significantly higher (5% level) than those of Monon; liming the soil to pH 5.8, however, equalized top yields of the two varieties. In Mn‐toxic Zanesville soil (pH 4.7 to 5.2) the varietal yield difference was just the reverse. At pH 5.2 the tops of Monon plants had fewer leaf symptoms (rolling and chlorotic spots) and yielded significantly more than those of Atlas 66; at pH 5.9 or 6.9, however, the two varieties were not significantly different in top yield. In nutrient solutions containing between 4 and 32 ppm Mn at pH 4.6 the tops of Monon showed fewer leaf symptoms of Mn toxicity and yielded significantly more than those of Atlas 66, but with O or 2 ppm Mn added, the top yields of the two varieties were not significantly different. With Mn levels of 2 to 32 ppm, Monon root yields were significantly higher than those of Atlas 66, but with no Mn added the two root yields were not significantly different. At all Mn levels of 2 to 32 ppm in solution both tops and roots of Monon contained higher Mn concentrations than those of Atlas 66, but Monon plants showed less injury. For example, in Monon tops 2,561 ppm Mn was associated with a yield reduction of 12%. In Atlas 66 tops 1,250 ppm Mn (the highest concentration reached in Atlas 66) was accompanied by a yield reduction of 21%. In Monon roots 8,534 ppm Mn was associated with a root yield reduction of 20%, but 7,172 ppm Mn in Atlas 66 roots coincided with a 45% reduction in root yield. Tolerance to one acid soil factor in a given plant genotype does not necessarily mean tolerance to another.
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Claims 19
Claim · model-written summary
Atlas 66 wheat was more tolerant to excess Al than Monon wheat.
- Taxon
- wheat
Triticum aestivume1 - Material
- Atlas 66e1
- Treatment
- excess Ale1
- Outcome
- tolerante1
- Direction
- more tolerante1
- Comparator
- Monone1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
Claim · model-written summary
Atlas 66 wheat was less tolerant to excess Mn than Monon wheat.
- Taxon
- wheatTriticum aestivume1
- Material
- Atlas 66e1
- Treatment
- excess Mne1
- Outcome
- tolerante1
- Direction
- less tolerante1
- Comparator
- Monone1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
Claim · model-written summary
In greenhouse pots of Al-toxic Bladen soil, Atlas 66 top yields were significantly higher than Monon top yields.
- Taxon
- wheatTriticum aestivume1
- Material
- Atlas 66e2
- Outcome
- top yieldse2
- Direction
- significantly highere2
- Comparator
- Monone2
- Setting
- greenhouse potse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
e2“In greenhouse pots of Al‐toxic Bladen soil (pH 4.6 to 5.1) the top yields of Atlas 66 were significantly higher (5% level) than those of Monon”
Claim · model-written summary
Liming the Al-toxic soil to pH 5.8 equalized top yields of the two wheat varieties.
- Taxon
- wheatTriticum aestivume1
- Treatment
- liming the soil to pH 5.8e2
- Outcome
- top yieldse2
- Direction
- equalizede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
e2“liming the soil to pH 5.8, however, equalized top yields of the two varieties”
Claim · model-written summary
In Mn-toxic Zanesville soil at pH 5.2, Monon tops yielded significantly more than Atlas 66 tops.
- Taxon
- wheatTriticum aestivume1
- Material
- Monone3
- Outcome
- yieldede3
- Direction
- moree3
- Comparator
- Atlas 66e3
- Setting
- Mn‐toxic Zanesville soile2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
e2“In Mn‐toxic Zanesville soil (pH 4.7 to 5.2) the varietal yield difference was just the reverse”
e3“At pH 5.2 the tops of Monon plants had fewer leaf symptoms (rolling and chlorotic spots) and yielded significantly more than those of Atlas 66”
Claim · model-written summary
In Mn-toxic Zanesville soil at pH 5.2, Monon plants had fewer leaf symptoms than Atlas 66.
- Taxon
- wheatTriticum aestivume1
- Material
- Monone3
- Outcome
- leaf symptomse3
- Direction
- fewere3
- Comparator
- Atlas 66e3
- Setting
- Mn‐toxic Zanesville soile2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
e2“In Mn‐toxic Zanesville soil (pH 4.7 to 5.2) the varietal yield difference was just the reverse”
e3“At pH 5.2 the tops of Monon plants had fewer leaf symptoms (rolling and chlorotic spots) and yielded significantly more than those of Atlas 66”
Claim · model-written summary
At pH 5.9 or 6.9 in Mn-toxic soil, the two wheat varieties did not differ significantly in top yield.
- Taxon
- wheatTriticum aestivume1
- Material
- the two varietiese2
- Treatment
- pH 5.9 or 6.9e2
- Outcome
- top yielde2
- Direction
- not significantly differente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
e2“at pH 5.9 or 6.9, however, the two varieties were not significantly different in top yield”
Claim · model-written summary
In nutrient solutions with 4 to 32 ppm Mn at pH 4.6, Monon tops yielded significantly more than Atlas 66 tops.
- Taxon
- wheatTriticum aestivume1
- Material
- Monone4
- Treatment
- between 4 and 32 ppm Mne4
- Outcome
- yieldede4
- Direction
- moree4
- Comparator
- Atlas 66e4
- Setting
- nutrient solutionse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
e4“In nutrient solutions containing between 4 and 32 ppm Mn at pH 4.6 the tops of Monon showed fewer leaf symptoms of Mn toxicity and yielded significantly more than those of Atlas 66”
Claim · model-written summary
In nutrient solutions with 4 to 32 ppm Mn at pH 4.6, Monon tops had fewer Mn toxicity leaf symptoms than Atlas 66.
- Taxon
- wheatTriticum aestivume1
- Material
- Monone4
- Treatment
- between 4 and 32 ppm Mne4
- Outcome
- leaf symptoms of Mn toxicitye4
- Direction
- fewere4
- Comparator
- Atlas 66e4
- Setting
- nutrient solutionse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
e4“In nutrient solutions containing between 4 and 32 ppm Mn at pH 4.6 the tops of Monon showed fewer leaf symptoms of Mn toxicity and yielded significantly more than those of Atlas 66”
Claim · model-written summary
With 0 or 2 ppm Mn added in solution, the top yields of the two wheat varieties did not differ significantly.
- Taxon
- wheatTriticum aestivume1
- Material
- the two varietiese2
- Treatment
- O or 2 ppm Mne2
- Outcome
- top yieldse2
- Direction
- not significantly differente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
e2“with O or 2 ppm Mn added, the top yields of the two varieties were not significantly different”
Claim · model-written summary
With 2 to 32 ppm Mn, Monon root yields were significantly higher than Atlas 66 root yields.
- Taxon
- wheatTriticum aestivume1
- Material
- Monone5
- Organ / stage
- roote5
- Treatment
- Mn levels of 2 to 32 ppme5
- Outcome
- root yieldse5
- Direction
- highere5
- Comparator
- Atlas 66e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
e5“With Mn levels of 2 to 32 ppm, Monon root yields were significantly higher than those of Atlas 66”
Claim · model-written summary
With no Mn added, the root yields of the two wheat varieties did not differ significantly.
- Taxon
- wheatTriticum aestivume1
- Material
- the two root yieldse2
- Organ / stage
- roote2
- Treatment
- no Mn addede2
- Outcome
- root yieldse2
- Direction
- not significantly differente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
e2“with no Mn added the two root yields were not significantly different”
Claim · model-written summary
At all Mn levels of 2 to 32 ppm in solution, Monon tops and roots contained higher Mn concentrations than Atlas 66.
- Taxon
- wheatTriticum aestivume1
- Material
- Monone6
- Organ / stage
- tops and rootse6
- Treatment
- Mn levels of 2 to 32 ppme6
- Compound
- Mne6
- Outcome
- Mn concentrationse6
- Direction
- highere6
- Comparator
- Atlas 66e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
e6“At all Mn levels of 2 to 32 ppm in solution both tops and roots of Monon contained higher Mn concentrations than those of Atlas 66”
Claim · model-written summary
Monon plants showed less Mn injury than Atlas 66 at Mn levels of 2 to 32 ppm.
- Taxon
- wheatTriticum aestivume1
- Material
- Monone2
- Outcome
- injurye2
- Direction
- lesse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
e2“but Monon plants showed less injury”
Claim · model-written summary
In Monon tops, 2,561 ppm Mn was associated with a 12% yield reduction.
- Taxon
- wheatTriticum aestivume1
- Material
- Monone7
- Organ / stage
- topse7
- Treatment
- 2,561 ppm Mne7
- Compound
- Mne7
- Outcome
- yielde7
- Direction
- reductione7
- Value
- 12%e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
e7“in Monon tops 2,561 ppm Mn was associated with a yield reduction of 12%”
Claim · model-written summary
In Atlas 66 tops, 1,250 ppm Mn was accompanied by a 21% yield reduction.
- Taxon
- wheatTriticum aestivume1
- Material
- Atlas 66e2
- Organ / stage
- topse2
- Treatment
- 1,250 ppm Mne2
- Compound
- Mne2
- Outcome
- yielde2
- Direction
- reductione2
- Value
- 21%e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
e2“In Atlas 66 tops 1,250 ppm Mn (the highest concentration reached in Atlas 66) was accompanied by a yield reduction of 21%”
Claim · model-written summary
In Monon roots, 8,534 ppm Mn was associated with a 20% root yield reduction.
- Taxon
- wheatTriticum aestivume1
- Material
- Monone2
- Organ / stage
- rootse2
- Treatment
- 8,534 ppm Mne2
- Compound
- Mne2
- Outcome
- root yielde2
- Direction
- reductione2
- Value
- 20%e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
e2“In Monon roots 8,534 ppm Mn was associated with a root yield reduction of 20%”
Claim · model-written summary
In Atlas 66 roots, 7,172 ppm Mn coincided with a 45% root yield reduction.
- Taxon
- wheatTriticum aestivume1
- Material
- Atlas 66e2
- Organ / stage
- rootse2
- Treatment
- 7,172 ppm Mne2
- Compound
- Mne2
- Outcome
- root yielde2
- Direction
- reductione2
- Value
- 45%e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
e2“7,172 ppm Mn in Atlas 66 roots coincided with a 45% reduction in root yield”
Claim · model-written summary
Tolerance to one acid soil factor in a wheat genotype does not necessarily mean tolerance to another.
- Taxon
- wheatTriticum aestivume1
- Outcome
- Tolerance to one acid soil factore2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Atlas 66’ wheat ( Triticum aestivum L.) from North Carolina was more tolerant to excess Al but less tolerant to excess Mn than ‘Monon’ wheat from Indiana”
e2“Tolerance to one acid soil factor in a given plant genotype does not necessarily mean tolerance to another”
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