Abstract
SummaryFour separate glasshouse experiments were conducted in solution culture using four levels of B (0, 0.5, 2 and 8 mg l−1) factorially combined with four levels of macronutrients (P, K, Ca and Mg). In all experiments B toxicity was the main factor responsible for pod yield reduction. This effect varied from 68% in the B+Ca combination to 40% for B + Mg and B + P. The effect of the macronutrient was B level-dependent. The highest yields, when B was a non-limiting factor, were related to the macronutrient level. Leaf B concentration was proportional to the B concentration in the substrate, and 350 mg kg−1, associated with 2 mg l−1 in the nutrient solution, was within the toxicity range. The effect on the other nutrients was primarily related to the associated macronutrient. The toxic effect of B on pod yield may be reduced by the addition of Mg at rates higher than those applied under normal conditions. Leaf concentration ranges of P, K, Ca, and Mg for normal pea growth were also established.
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Claims 11
Claim · model-written summary
B toxicity reduced pea pod yield in all four experiments.
- Taxon
- pea (Pisum sativum)
Lathyrus oleraceust0 - Treatment
- B toxicitye0
- Outcome
- pod yielde0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In all experiments B toxicity was the main factor responsible for pod yield reduction”
t0“pea (Pisum sativum)”
Claim · model-written summary
B plus Ca was associated with 68% pod-yield reduction.
- Taxon
- pea (Pisum sativum)Lathyrus oleraceust0
- Treatment
- B+Ca combinatione0
- Outcome
- pod yield reductione0
- Direction
- reductione0
- Value
- 68%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In all experiments B toxicity was the main factor responsible for pod yield reduction. This effect varied from 68% in the B+Ca combination to 40% for B + Mg and B + P”
t0“pea (Pisum sativum)”
Claim · model-written summary
B plus Mg was associated with 40% pod-yield reduction.
- Taxon
- pea (Pisum sativum)Lathyrus oleraceust0
- Treatment
- B + Mge0
- Outcome
- pod yield reductione0
- Direction
- reductione0
- Value
- 40%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In all experiments B toxicity was the main factor responsible for pod yield reduction. This effect varied from 68% in the B+Ca combination to 40% for B + Mg and B + P”
t0“pea (Pisum sativum)”
Claim · model-written summary
B plus P was associated with 40% pod-yield reduction.
- Taxon
- pea (Pisum sativum)Lathyrus oleraceust0
- Treatment
- B + Pe0
- Outcome
- pod yield reductione0
- Direction
- reductione0
- Value
- 40%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In all experiments B toxicity was the main factor responsible for pod yield reduction. This effect varied from 68% in the B+Ca combination to 40% for B + Mg and B + P”
t0“pea (Pisum sativum)”
Claim · model-written summary
Macronutrient effects varied with boron level.
- Taxon
- pea (Pisum sativum)Lathyrus oleraceust0
- Treatment
- macronutriente0
- Outcome
- effect of the macronutriente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of the macronutrient was B level-dependent”
t0“pea (Pisum sativum)”
Claim · model-written summary
At nonlimiting B, highest yields were related to macronutrient level.
- Taxon
- pea (Pisum sativum)Lathyrus oleraceust0
- Treatment
- macronutrient levele0
- Outcome
- highest yieldse0
- Direction
- higheste0
- Qualifier
- when B was a non-limiting factore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yields, when B was a non-limiting factor, were related to the macronutrient level”
t0“pea (Pisum sativum)”
Claim · model-written summary
Leaf B concentration rose proportionally with substrate B.
- Taxon
- pea (Pisum sativum)Lathyrus oleraceust0
- Outcome
- Leaf B concentratione0
- Setting
- substratee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf B concentration was proportional to the B concentration in the substrate”
t0“pea (Pisum sativum)”
Claim · model-written summary
Leaf B at 350 mg kg−1 with 2 mg l−1 solution B was toxic.
- Taxon
- pea (Pisum sativum)Lathyrus oleraceust0
- Outcome
- toxicity rangee0
- Value
- 350 mg kg−1e0
- Qualifier
- 2 mg l−1 in the nutrient solutione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“350 mg kg−1, associated with 2 mg l−1 in the nutrient solution, was within the toxicity range”
t0“pea (Pisum sativum)”
Claim · model-written summary
Effects on other nutrients were primarily tied to the associated macronutrient.
- Taxon
- pea (Pisum sativum)Lathyrus oleraceust0
- Treatment
- associated macronutriente0
- Outcome
- effect on the other nutrientse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect on the other nutrients was primarily related to the associated macronutrient”
t0“pea (Pisum sativum)”
Claim · model-written summary
The authors suggest elevated Mg rates to reduce B toxicity for pod yield.
- Taxon
- pea (Pisum sativum)Lathyrus oleraceust0
- Outcome
- addition of Mg at rates higher than those applied under normal conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The toxic effect of B on pod yield may be reduced by the addition of Mg at rates higher than those applied under normal conditions”
t0“pea (Pisum sativum)”
Claim · model-written summary
Normal-growth leaf concentration ranges for P, K, Ca and Mg were established.
- Taxon
- pea (Pisum sativum)Lathyrus oleraceust0
- Outcome
- Leaf concentration ranges of P, K, Ca, and Mg for normal pea growthe0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf concentration ranges of P, K, Ca, and Mg for normal pea growth were also established”
t0“pea (Pisum sativum)”
The same questions in other papers
boron atom · yield · Lathyrus oleraceus (pea)Results differ
1 paper in the same direction as this paper · 10 in the opposite direction
- positive
- positive
- positive
8 papers more in this group
See all 12 papers →magnesium atom · yield · Lathyrus oleraceus (pea)Positive and negative results
2 in the opposite direction
- positive
- positive
calcium atom · yield · Lathyrus oleraceus (pea)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.