Abstract
Abstract High Al in acid subsoils of the Southeastern States often restricts root growth and moisture utilization. Liming subsoil is difficult and expensive. An alternative or substantial approach is to select or breed plant genotypes having greater tolerance to Al. The differential Al tolerances of soybean [ Glycine max (L.) Merr.] representing Maturity Groups V, VI, and VII were determined in a growth chamber using nutrient solutions containing 0 and 8 ppm Al. Screening was also done on acid (4.2) and limed (5.8) in Bladen soil (Typic Albaquult) in the greenhouse. Aluminum sensitive ‘Chief’ and Al‐tolerant ‘Perry’ were included as standard checks. Soybean plants injured by 8 ppm Al in nutrient solution were characterized by narrow leaf blades, leaf chlorosis, reduced plant height, stunted, blackish root tips. In unlimed soil the relative root dry weight seemed a better index of differential Al tolerance among cultivars than top dry weight. Roots of the cv. Perry yielded 20% more dry weight than Chief in unlimed soil. Liming the soil to pH 5.8, increased the yields of sensitive cv. Chief by 40% compared to the unlimed soil. On the unlimed soil, plant symptoms such as cupping and chlorosis of young leaves were observed. The most tolerant and sensitive lines tested were; PI 81042 (V), PI 159322 (VI), Missoy (VII), and PI 88490 (V), PI 85010 Pocahontas, respectively.
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Claims 9
Claim · model-written summary
8 ppm Al in nutrient solution reduced the plant height of soybean.
- Taxon
- Soybean
Glycine maxe1 - Treatment
- 8 ppm Al in nutrient solutione1
- Outcome
- plant heighte1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soybean plants injured by 8 ppm Al in nutrient solution were characterized by narrow leaf blades, leaf chlorosis, reduced plant height, stunted, blackish root tips”
Claim · model-written summary
8 ppm Al in nutrient solution caused narrow leaf blades and leaf chlorosis in soybean.
- Taxon
- SoybeanGlycine maxe1
- Treatment
- 8 ppm Al in nutrient solutione1
- Outcome
- narrow leaf blades, leaf chlorosise1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soybean plants injured by 8 ppm Al in nutrient solution were characterized by narrow leaf blades, leaf chlorosis, reduced plant height, stunted, blackish root tips”
Claim · model-written summary
8 ppm Al in nutrient solution stunted soybean and blackened root tips.
- Taxon
- SoybeanGlycine maxe1
- Treatment
- 8 ppm Al in nutrient solutione1
- Outcome
- stunted, blackish root tipse1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soybean plants injured by 8 ppm Al in nutrient solution were characterized by narrow leaf blades, leaf chlorosis, reduced plant height, stunted, blackish root tips”
Claim · model-written summary
In unlimed soil, relative root dry weight appeared a better index of differential Al tolerance among soybean cultivars than top dry weight.
Verbatim
e2“In unlimed soil the relative root dry weight seemed a better index of differential Al tolerance among cultivars than top dry weight”
Claim · model-written summary
Cultivar Perry produced 20% more root dry weight than Chief in unlimed soil.
- Taxon
- SoybeanGlycine maxe1
- Material
- cv. Perrye3
- Outcome
- dry weighte3
- Direction
- moree3
- Value
- 20%e3
- Comparator
- Chiefe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soybean plants injured by 8 ppm Al in nutrient solution were characterized by narrow leaf blades, leaf chlorosis, reduced plant height, stunted, blackish root tips”
e3“Roots of the cv. Perry yielded 20% more dry weight than Chief in unlimed soil”
Claim · model-written summary
Liming the soil to pH 5.8 increased the yield of the sensitive cultivar Chief by 40% relative to unlimed soil.
- Taxon
- SoybeanGlycine maxe1
- Material
- cv. Chiefe4
- Treatment
- Liming the soil to pH 5.8e4
- Outcome
- yieldse4
- Direction
- increasede4
- Value
- 40%e4
- Comparator
- unlimed soile4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soybean plants injured by 8 ppm Al in nutrient solution were characterized by narrow leaf blades, leaf chlorosis, reduced plant height, stunted, blackish root tips”
e4“Liming the soil to pH 5.8, increased the yields of sensitive cv. Chief by 40% compared to the unlimed soil”
Claim · model-written summary
On unlimed soil, soybean plants showed cupping and chlorosis of young leaves.
- Taxon
- SoybeanGlycine maxe1
- Outcome
- cupping and chlorosis of young leavese5
- Setting
- unlimed soile5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soybean plants injured by 8 ppm Al in nutrient solution were characterized by narrow leaf blades, leaf chlorosis, reduced plant height, stunted, blackish root tips”
e5“On the unlimed soil, plant symptoms such as cupping and chlorosis of young leaves were observed”
Claim · model-written summary
PI 81042, PI 159322 and Missoy were among the most tolerant soybean lines tested.
- Taxon
- SoybeanGlycine maxe1
- Material
- PI 81042 (V), PI 159322 (VI), Missoy (VII)e6
- Outcome
- most tolerante6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soybean plants injured by 8 ppm Al in nutrient solution were characterized by narrow leaf blades, leaf chlorosis, reduced plant height, stunted, blackish root tips”
e6“The most tolerant and sensitive lines tested were; PI 81042 (V), PI 159322 (VI), Missoy (VII), and PI 88490 (V), PI 85010 Pocahontas, respectively”
Claim · model-written summary
PI 88490 and PI 85010 Pocahontas were the sensitive soybean lines tested.
- Taxon
- SoybeanGlycine maxe1
- Material
- PI 88490 (V), PI 85010 Pocahontase6
- Outcome
- sensitive linese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soybean plants injured by 8 ppm Al in nutrient solution were characterized by narrow leaf blades, leaf chlorosis, reduced plant height, stunted, blackish root tips”
e6“The most tolerant and sensitive lines tested were; PI 81042 (V), PI 159322 (VI), Missoy (VII), and PI 88490 (V), PI 85010 Pocahontas, respectively”
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