Abstract
Zinc concentrations in the root, terminal growth, stem, and needles of loblolly pine (Pinus taeda L.) were measured in 72 seedlings grown in washed sand, fertilized with Zn(N03)2. Zinc treatment periods were early spring, late spring, and summer. Zinc uptake was the greatest in early spring. Zinc nitrate fertilizer and remaining soil zinc at treatments end had no effect on mycorrhizae, height, or diameter growth. Linear and multiple regressions were derived using residual soil zinc and treatment zinc that can predict zinc concentrations in different plant parts that have r values from .7440 to .8170. Linear regressions for the prediction of zinc concentrations in different plant parts from leaf zinc concentration have r values from .7694 to .9146.
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Claims 6
Claim · model-written summary
Loblolly pine zinc uptake was greatest in early spring.
- Taxon
- loblolly pine
Pinus taedat0 - Outcome
- Zinc uptakee0
- Direction
- greateste0
- Setting
- early springe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc uptake was the greatest in early spring.”
t0“Loblolly Pine”
Claim · model-written summary
Zinc nitrate fertilizer and residual soil zinc had no effect on mycorrhizae.
- Taxon
- loblolly pinePinus taedat0
- Treatment
- Zinc nitrate fertilizere0
- Outcome
- mycorrhizaee0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc nitrate fertilizer and remaining soil zinc at treatments end had no effect on mycorrhizae, height, or diameter growth.”
t0“Loblolly Pine”
Claim · model-written summary
Zinc nitrate fertilizer and residual soil zinc had no effect on height.
- Taxon
- loblolly pinePinus taedat0
- Treatment
- Zinc nitrate fertilizere0
- Outcome
- heighte0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc nitrate fertilizer and remaining soil zinc at treatments end had no effect on mycorrhizae, height, or diameter growth.”
t0“Loblolly Pine”
Claim · model-written summary
Zinc nitrate fertilizer and residual soil zinc had no effect on diameter growth.
- Taxon
- loblolly pinePinus taedat0
- Treatment
- Zinc nitrate fertilizere0
- Outcome
- diameter growthe0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc nitrate fertilizer and remaining soil zinc at treatments end had no effect on mycorrhizae, height, or diameter growth.”
t0“Loblolly Pine”
Claim · model-written summary
Regressions using soil and treatment zinc predicted plant-part zinc with r values .7440 to .8170.
- Taxon
- loblolly pinePinus taedat0
- Outcome
- predict zinc concentrations in different plant partse0
- Value
- .7440 to .8170e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Linear and multiple regressions were derived using residual soil zinc and treatment zinc that can predict zinc concentrations in different plant parts that have r values from .7440 to .8170.”
t0“Loblolly Pine”
Claim · model-written summary
Leaf zinc regressions predicted plant-part zinc with r values .7694 to .9146.
- Taxon
- loblolly pinePinus taedat0
- Outcome
- prediction of zinc concentrations in different plant partse0
- Value
- .7694 to .9146e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Linear regressions for the prediction of zinc concentrations in different plant parts from leaf zinc concentration have r values from .7694 to .9146.”
t0“Loblolly Pine”
The same questions in other papers
fertilization · growth · Pinus taeda (loblolly pine)Positive and negative results
3 papers in the same direction as this paper · 26 in the opposite direction
- positive
- positive
- positive
26 papers more in this group
See all 30 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.