Abstract
Most studies that have registered amelioration of Al toxicity due to root cation exchange capacity (CEC) decrease with B application were conducted using eudicotyledonous species (high root CEC). However, the effect of B/Al interaction on the root CEC values in species with low root CEC such as corn (Zea mays L.) has been understudied. Thus, this study aimed to: (1) verify if B decreases root CEC and if it benefits the growth and nutrient uptake in corn plants under Al toxicity; and (2) verify which method of root CEC analysis better differentiates the effects of B and Al. Corn seedlings were grown in complete nutrient solution with the following treatments: 0, 50, and 200 mM of B versus 0 and 300 mM of Al. Root attributes showed correlations with nutrient depletion from the nutrient solution, but nutrient depletion generally varied with transpiration in two depletion tests. The addition of B or Al in nutrient solution decreased root CEC; however, B failed to decrease Al toxicity in corn plants. The four methods used to determine CEC of corn roots had contrasting results, particularly with respect to the effect of B in the presence of Al.
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Claims 6
Claim · model-written summary
Corn root attributes correlated with nutrient depletion from solution.
- Taxon
- corn
Zea mays subsp. mayst0 - Organ / stage
- Roote0
- Outcome
- correlations with nutrient depletion from the nutrient solutione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root attributes showed correlations with nutrient depletion from the nutrient solution”
t0“corn roots”
Claim · model-written summary
Nutrient depletion generally varied with transpiration in two tests.
- Taxon
- cornZea mays subsp. mayst0
- Organ / stage
- rootst0
- Outcome
- nutrient depletione0
- Direction
- variede0
- Qualifier
- two depletion testse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nutrient depletion generally varied with transpiration in two depletion tests”
t0“corn roots”
Claim · model-written summary
B addition decreased corn root cation exchange capacity.
- Taxon
- corn plantsZea mays subsp. mayse0
- Treatment
- Be0
- Outcome
- root CECe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of B or Al in nutrient solution decreased root CEC; however, B failed to decrease Al toxicity in corn plants.”
Claim · model-written summary
Al addition decreased corn root cation exchange capacity.
- Taxon
- corn plantsZea mays subsp. mayse0
- Treatment
- Ale0
- Outcome
- root CECe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of B or Al in nutrient solution decreased root CEC; however, B failed to decrease Al toxicity in corn plants.”
Claim · model-written summary
B addition failed to decrease aluminum toxicity in corn plants.
- Taxon
- corn plantsZea mays subsp. mayse0
- Treatment
- Be0
- Outcome
- Al toxicitye0
- Direction
- failed to decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B failed to decrease Al toxicity in corn plants.”
Claim · model-written summary
Four methods for measuring corn root CEC gave contrasting results, particularly for boron with aluminum.
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- contrasting resultse0
- Qualifier
- effect of B in the presence of Ale0
- Comparator
- four methodse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The four methods used to determine CEC of corn roots had contrasting results, particularly with respect to the effect of B in the presence of Al.”
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