Abstract
Maize (Zea mays L.) is common in potato (Solanum tuberosum L.) cropping systems and is especially susceptible to zinc (Zn) deficiency, possibly related to induced potato demand for high phosphorus (P). Three chelator-buffered nutrient solution experiments were evaluated for maize response to establish ranges of deficient, sufficient, and excessive Zn and P and to evaluate interactions. Zinc concentrated in roots and manganese (Mn) accumulated in shoots as P increased, but only 32 μM P produced significantly lower shoot Zn than other treatments and there was not a decline in shoot Zn at high P levels. Deficient Zn levels promoted excessive P uptake. Root Mn increased dramatically above 0.05 μM Zn, peaked at 20 and 40 μM Zn, and then declined at higher solution Zn levels. The P-Zn interaction in maize may be explained by the combined impacts of increased available P on Zn precipitation in roots and increased Mn in shoots.
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Claims 9
Claim · model-written summary
Increasing phosphorus concentrated zinc in maize roots.
- Organ / stage
- rootse0
- Treatment
- P increasede0
- Outcome
- Zinc concentrated in rootse0
- Direction
- concentratede0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc concentrated in roots and manganese (Mn) accumulated in shoots as P increased”
e1“Maize (Zea mays L.)”
Claim · model-written summary
Increasing phosphorus accumulated manganese in maize shoots.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“manganese (Mn) accumulated in shoots as P increased”
e1“Maize (Zea mays L.)”
Claim · model-written summary
Only 32 μM phosphorus significantly lowered maize shoot zinc relative to other treatments.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only 32 μM P produced significantly lower shoot Zn than other treatments”
e1“Maize (Zea mays L.)”
Claim · model-written summary
Shoot zinc did not decline at high phosphorus levels.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was not a decline in shoot Zn at high P levels”
e1“Maize (Zea mays L.)”
Claim · model-written summary
Zinc deficiency promoted excessive phosphorus uptake.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Deficient Zn levels promoted excessive P uptake”
e1“Maize (Zea mays L.)”
Claim · model-written summary
Root manganese rose dramatically above 0.05 μM zinc.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root Mn increased dramatically above 0.05 μM Zn”
e1“Maize (Zea mays L.)”
Claim · model-written summary
Root manganese peaked at 20 and 40 μM zinc.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“peaked at 20 and 40 μM Zn”
e1“Root Mn increased dramatically”
e2“Maize (Zea mays L.)”
Claim · model-written summary
Root manganese declined at higher solution zinc levels.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root Mn increased dramatically above 0.05 μM Zn, peaked at 20 and 40 μM Zn, and then declined at higher solution Zn levels”
e1“Maize (Zea mays L.)”
Claim · model-written summary
Authors propose that phosphorus-induced zinc precipitation in roots and increased shoot manganese explain the maize phosphorus–zinc interaction.
- Outcome
- P-Zn interactione0
- Qualifier
- combined impacts of increased available P on Zn precipitation in roots and increased Mn in shootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The P-Zn interaction in maize may be explained by the combined impacts of increased available P on Zn precipitation in roots and increased Mn in shoots”
The same questions in other papers
zinc atom · nutrient: content · Zea mays (maize)Results differ
198 papers in the same direction as this paper · 33 in the opposite direction · 3 reporting no difference from an alternative
This paper is about lacking the nutrient, so it counts the other way round here.
- negative
- positive
- positive
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See all 235 papers →phosphorus · nutrient: content · Zea mays (maize)Positive and negative results
53 papers in the same direction as this paper · 190 in the opposite direction
- negative
- positive
- positive
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See all 244 papers →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.